gl_rmain.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // r_main.c
  21
  22 #include "quakedef.h"
  23 #include "cl_dyntexture.h"
  24 #include "r_shadow.h"
  25 #include "polygon.h"
  26 #include "image.h"
  27
  28 mempool_t *r_main_mempool;
  29 rtexturepool_t *r_main_texturepool;
  30
  31 //
  32 // screen size info
  33 //
  34 r_refdef_t r_refdef;
  35
  36 cvar_t r_depthfirst = {CVAR_SAVE, "r_depthfirst", "1", "renders a depth-only version of the scene before normal rendering begins to eliminate overdraw, values: 0 = off, 1 = world depth, 2 = world and model depth"};
  37 cvar_t r_useinfinitefarclip = {CVAR_SAVE, "r_useinfinitefarclip", "1", "enables use of a special kind of projection matrix that has an extremely large farclip"};
  38 cvar_t r_nearclip = {0, "r_nearclip", "1", "distance from camera of nearclip plane" };
  39 cvar_t r_showbboxes = {0, "r_showbboxes", "0", "shows bounding boxes of server entities, value controls opacity scaling (1 = 10%,  10 = 100%)"};
  40 cvar_t r_showsurfaces = {0, "r_showsurfaces", "0", "1 shows surfaces as different colors, or a value of 2 shows triangle draw order (for analyzing whether meshes are optimized for vertex cache)"};
  41 cvar_t r_showtris = {0, "r_showtris", "0", "shows triangle outlines, value controls brightness (can be above 1)"};
  42 cvar_t r_shownormals = {0, "r_shownormals", "0", "shows per-vertex surface normals and tangent vectors for bumpmapped lighting"};
  43 cvar_t r_showlighting = {0, "r_showlighting", "0", "shows areas lit by lights, useful for finding out why some areas of a map render slowly (bright orange = lots of passes = slow), a value of 2 disables depth testing which can be interesting but not very useful"};
  44 cvar_t r_showshadowvolumes = {0, "r_showshadowvolumes", "0", "shows areas shadowed by lights, useful for finding out why some areas of a map render slowly (bright blue = lots of passes = slow), a value of 2 disables depth testing which can be interesting but not very useful"};
  45 cvar_t r_showcollisionbrushes = {0, "r_showcollisionbrushes", "0", "draws collision brushes in quake3 maps (mode 1), mode 2 disables rendering of world (trippy!)"};
  46 cvar_t r_showcollisionbrushes_polygonfactor = {0, "r_showcollisionbrushes_polygonfactor", "-1", "expands outward the brush polygons a little bit, used to make collision brushes appear infront of walls"};
  47 cvar_t r_showcollisionbrushes_polygonoffset = {0, "r_showcollisionbrushes_polygonoffset", "0", "nudges brush polygon depth in hardware depth units, used to make collision brushes appear infront of walls"};
  48 cvar_t r_showdisabledepthtest = {0, "r_showdisabledepthtest", "0", "disables depth testing on r_show* cvars, allowing you to see what hidden geometry the graphics card is processing"};
  49 cvar_t r_drawportals = {0, "r_drawportals", "0", "shows portals (separating polygons) in world interior in quake1 maps"};
  50 cvar_t r_drawentities = {0, "r_drawentities","1", "draw entities (doors, players, projectiles, etc)"};
  51 cvar_t r_drawviewmodel = {0, "r_drawviewmodel","1", "draw your weapon model"};
  52 cvar_t r_cullentities_trace = {0, "r_cullentities_trace", "1", "probabistically cull invisible entities"};
  53 cvar_t r_cullentities_trace_samples = {0, "r_cullentities_trace_samples", "2", "number of samples to test for entity culling"};
  54 cvar_t r_cullentities_trace_enlarge = {0, "r_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  55 cvar_t r_cullentities_trace_delay = {0, "r_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  56 cvar_t r_speeds = {0, "r_speeds","0", "displays rendering statistics and per-subsystem timings"};
  57 cvar_t r_fullbright = {0, "r_fullbright","0", "makes map very bright and renders faster"};
  58 cvar_t r_wateralpha = {CVAR_SAVE, "r_wateralpha","1", "opacity of water polygons"};
  59 cvar_t r_dynamic = {CVAR_SAVE, "r_dynamic","1", "enables dynamic lights (rocket glow and such)"};
  60 cvar_t r_fullbrights = {CVAR_SAVE, "r_fullbrights", "1", "enables glowing pixels in quake textures (changes need r_restart to take effect)"};
  61 cvar_t r_shadows = {CVAR_SAVE, "r_shadows", "0", "casts fake stencil shadows from models onto the world (rtlights are unaffected by this)"};
  62 cvar_t r_shadows_throwdistance = {CVAR_SAVE, "r_shadows_throwdistance", "500", "how far to cast shadows from models"};
  63 cvar_t r_q1bsp_skymasking = {0, "r_q1bsp_skymasking", "1", "allows sky polygons in quake1 maps to obscure other geometry"};
  64 cvar_t r_polygonoffset_submodel_factor = {0, "r_polygonoffset_submodel_factor", "0", "biases depth values of world submodels such as doors, to prevent z-fighting artifacts in Quake maps"};
  65 cvar_t r_polygonoffset_submodel_offset = {0, "r_polygonoffset_submodel_offset", "2", "biases depth values of world submodels such as doors, to prevent z-fighting artifacts in Quake maps"};
  66 cvar_t r_fog_exp2 = {0, "r_fog_exp2", "0", "uses GL_EXP2 fog (as in Nehahra) rather than realistic GL_EXP fog"};
  67 cvar_t r_drawfog = {CVAR_SAVE, "r_drawfog", "1", "allows one to disable fog rendering"};
  68
  69 cvar_t gl_fogenable = {0, "gl_fogenable", "0", "nehahra fog enable (for Nehahra compatibility only)"};
  70 cvar_t gl_fogdensity = {0, "gl_fogdensity", "0.25", "nehahra fog density (recommend values below 0.1) (for Nehahra compatibility only)"};
  71 cvar_t gl_fogred = {0, "gl_fogred","0.3", "nehahra fog color red value (for Nehahra compatibility only)"};
  72 cvar_t gl_foggreen = {0, "gl_foggreen","0.3", "nehahra fog color green value (for Nehahra compatibility only)"};
  73 cvar_t gl_fogblue = {0, "gl_fogblue","0.3", "nehahra fog color blue value (for Nehahra compatibility only)"};
  74 cvar_t gl_fogstart = {0, "gl_fogstart", "0", "nehahra fog start distance (for Nehahra compatibility only)"};
  75 cvar_t gl_fogend = {0, "gl_fogend","0", "nehahra fog end distance (for Nehahra compatibility only)"};
  76 cvar_t gl_skyclip = {0, "gl_skyclip", "4608", "nehahra farclip distance - the real fog end (for Nehahra compatibility only)"};
  77
  78 cvar_t r_textureunits = {0, "r_textureunits", "32", "number of hardware texture units reported by driver (note: setting this to 1 turns off gl_combine)"};
  79
  80 cvar_t r_glsl = {CVAR_SAVE, "r_glsl", "1", "enables use of OpenGL 2.0 pixel shaders for lighting"};
  81 cvar_t r_glsl_contrastboost = {CVAR_SAVE, "r_glsl_contrastboost", "1", "by how much to multiply the contrast in dark areas (1 is no change)"};
  82 cvar_t r_glsl_deluxemapping = {CVAR_SAVE, "r_glsl_deluxemapping", "1", "use per pixel lighting on deluxemap-compiled q3bsp maps (or a value of 2 forces deluxemap shading even without deluxemaps)"};
  83 cvar_t r_glsl_offsetmapping = {CVAR_SAVE, "r_glsl_offsetmapping", "0", "offset mapping effect (also known as parallax mapping or virtual displacement mapping)"};
  84 cvar_t r_glsl_offsetmapping_reliefmapping = {CVAR_SAVE, "r_glsl_offsetmapping_reliefmapping", "0", "relief mapping effect (higher quality)"};
  85 cvar_t r_glsl_offsetmapping_scale = {CVAR_SAVE, "r_glsl_offsetmapping_scale", "0.04", "how deep the offset mapping effect is"};
  86 cvar_t r_glsl_postprocess = {CVAR_SAVE, "r_glsl_postprocess", "0", "use a GLSL postprocessing shader"};
  87 cvar_t r_glsl_postprocess_uservec1 = {CVAR_SAVE, "r_glsl_postprocess_uservec1", "0 0 0 0", "a 4-component vector to pass as uservec1 to the postprocessing shader (only useful if default.glsl has been customized)"};
  88 cvar_t r_glsl_postprocess_uservec2 = {CVAR_SAVE, "r_glsl_postprocess_uservec2", "0 0 0 0", "a 4-component vector to pass as uservec2 to the postprocessing shader (only useful if default.glsl has been customized)"};
  89 cvar_t r_glsl_postprocess_uservec3 = {CVAR_SAVE, "r_glsl_postprocess_uservec3", "0 0 0 0", "a 4-component vector to pass as uservec3 to the postprocessing shader (only useful if default.glsl has been customized)"};
  90 cvar_t r_glsl_postprocess_uservec4 = {CVAR_SAVE, "r_glsl_postprocess_uservec4", "0 0 0 0", "a 4-component vector to pass as uservec4 to the postprocessing shader (only useful if default.glsl has been customized)"};
  91 cvar_t r_glsl_usegeneric = {CVAR_SAVE, "r_glsl_usegeneric", "1", "use shaders for rendering simple geometry (rather than conventional fixed-function rendering for this purpose)"};
  92
  93 cvar_t r_water = {CVAR_SAVE, "r_water", "0", "whether to use reflections and refraction on water surfaces (note: r_wateralpha must be set below 1)"};
  94 cvar_t r_water_clippingplanebias = {CVAR_SAVE, "r_water_clippingplanebias", "1", "a rather technical setting which avoids black pixels around water edges"};
  95 cvar_t r_water_resolutionmultiplier = {CVAR_SAVE, "r_water_resolutionmultiplier", "0.5", "multiplier for screen resolution when rendering refracted/reflected scenes, 1 is full quality, lower values are faster"};
  96 cvar_t r_water_refractdistort = {CVAR_SAVE, "r_water_refractdistort", "0.01", "how much water refractions shimmer"};
  97 cvar_t r_water_reflectdistort = {CVAR_SAVE, "r_water_reflectdistort", "0.01", "how much water reflections shimmer"};
  98
  99 cvar_t r_lerpsprites = {CVAR_SAVE, "r_lerpsprites", "1", "enables animation smoothing on sprites (requires r_lerpmodels 1)"};
 100 cvar_t r_lerpmodels = {CVAR_SAVE, "r_lerpmodels", "1", "enables animation smoothing on models"};
 101 cvar_t r_lerplightstyles = {CVAR_SAVE, "r_lerplightstyles", "0", "enable animation smoothing on flickering lights"};
 102 cvar_t r_waterscroll = {CVAR_SAVE, "r_waterscroll", "1", "makes water scroll around, value controls how much"};
 103
 104 cvar_t r_bloom = {CVAR_SAVE, "r_bloom", "0", "enables bloom effect (makes bright pixels affect neighboring pixels)"};
 105 cvar_t r_bloom_colorscale = {CVAR_SAVE, "r_bloom_colorscale", "1", "how bright the glow is"};
 106 cvar_t r_bloom_brighten = {CVAR_SAVE, "r_bloom_brighten", "2", "how bright the glow is, after subtract/power"};
 107 cvar_t r_bloom_blur = {CVAR_SAVE, "r_bloom_blur", "4", "how large the glow is"};
 108 cvar_t r_bloom_resolution = {CVAR_SAVE, "r_bloom_resolution", "320", "what resolution to perform the bloom effect at (independent of screen resolution)"};
 109 cvar_t r_bloom_colorexponent = {CVAR_SAVE, "r_bloom_colorexponent", "1", "how exagerated the glow is"};
 110 cvar_t r_bloom_colorsubtract = {CVAR_SAVE, "r_bloom_colorsubtract", "0.125", "reduces bloom colors by a certain amount"};
 111
 112 cvar_t r_hdr = {CVAR_SAVE, "r_hdr", "0", "enables High Dynamic Range bloom effect (higher quality version of r_bloom)"};
 113 cvar_t r_hdr_scenebrightness = {CVAR_SAVE, "r_hdr_scenebrightness", "1", "global rendering brightness"};
 114 cvar_t r_hdr_glowintensity = {CVAR_SAVE, "r_hdr_glowintensity", "1", "how bright light emitting textures should appear"};
 115 cvar_t r_hdr_range = {CVAR_SAVE, "r_hdr_range", "4", "how much dynamic range to render bloom with (equivilant to multiplying r_bloom_brighten by this value and dividing r_bloom_colorscale by this value)"};
 116
 117 cvar_t r_smoothnormals_areaweighting = {0, "r_smoothnormals_areaweighting", "1", "uses significantly faster (and supposedly higher quality) area-weighted vertex normals and tangent vectors rather than summing normalized triangle normals and tangents"};
 118
 119 cvar_t developer_texturelogging = {0, "developer_texturelogging", "0", "produces a textures.log file containing names of skins and map textures the engine tried to load"};
 120
 121 cvar_t gl_lightmaps = {0, "gl_lightmaps", "0", "draws only lightmaps, no texture (for level designers)"};
 122
 123 cvar_t r_test = {0, "r_test", "0", "internal development use only, leave it alone (usually does nothing anyway)"};
 124 cvar_t r_batchmode = {0, "r_batchmode", "1", "selects method of rendering multiple surfaces with one driver call (values are 0, 1, 2, etc...)"};
 125 cvar_t r_track_sprites = {CVAR_SAVE, "r_track_sprites", "1", "track SPR_LABEL* sprites by putting them as indicator at the screen border to rotate to"};
 126 cvar_t r_track_sprites_flags = {CVAR_SAVE, "r_track_sprites_flags", "1", "1: Rotate sprites accodringly, 2: Make it a continuous rotation"};
 127 cvar_t r_track_sprites_scalew = {CVAR_SAVE, "r_track_sprites_scalew", "1", "width scaling of tracked sprites"};
 128 cvar_t r_track_sprites_scaleh = {CVAR_SAVE, "r_track_sprites_scaleh", "1", "height scaling of tracked sprites"};
 129
 130 extern cvar_t v_glslgamma;
 131
 132 extern qboolean v_flipped_state;
 133
 134 static struct r_bloomstate_s
 135 {
 136         qboolean enabled;
 137         qboolean hdr;
 138
 139         int bloomwidth, bloomheight;
 140
 141         int screentexturewidth, screentextureheight;
 142         rtexture_t *texture_screen;
 143
 144         int bloomtexturewidth, bloomtextureheight;
 145         rtexture_t *texture_bloom;
 146
 147         // arrays for rendering the screen passes
 148         float screentexcoord2f[8];
 149         float bloomtexcoord2f[8];
 150         float offsettexcoord2f[8];
 151 }
 152 r_bloomstate;
 153
 154 r_waterstate_t r_waterstate;
 155
 156 // shadow volume bsp struct with automatically growing nodes buffer
 157 svbsp_t r_svbsp;
 158
 159 rtexture_t *r_texture_blanknormalmap;
 160 rtexture_t *r_texture_white;
 161 rtexture_t *r_texture_grey128;
 162 rtexture_t *r_texture_black;
 163 rtexture_t *r_texture_notexture;
 164 rtexture_t *r_texture_whitecube;
 165 rtexture_t *r_texture_normalizationcube;
 166 rtexture_t *r_texture_fogattenuation;
 167 rtexture_t *r_texture_gammaramps;
 168 unsigned int r_texture_gammaramps_serial;
 169 //rtexture_t *r_texture_fogintensity;
 170
 171 char r_qwskincache[MAX_SCOREBOARD][MAX_QPATH];
 172 skinframe_t *r_qwskincache_skinframe[MAX_SCOREBOARD];
 173
 174 // vertex coordinates for a quad that covers the screen exactly
 175 const static float r_screenvertex3f[12] =
 176 {
 177         0, 0, 0,
 178         1, 0, 0,
 179         1, 1, 0,
 180         0, 1, 0
 181 };
 182
 183 extern void R_DrawModelShadows(void);
 184
 185 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
 186 {
 187         int i;
 188         for (i = 0;i < verts;i++)
 189         {
 190                 out[0] = in[0] * r;
 191                 out[1] = in[1] * g;
 192                 out[2] = in[2] * b;
 193                 out[3] = in[3];
 194                 in += 4;
 195                 out += 4;
 196         }
 197 }
 198
 199 void R_FillColors(float *out, int verts, float r, float g, float b, float a)
 200 {
 201         int i;
 202         for (i = 0;i < verts;i++)
 203         {
 204                 out[0] = r;
 205                 out[1] = g;
 206                 out[2] = b;
 207                 out[3] = a;
 208                 out += 4;
 209         }
 210 }
 211
 212 // FIXME: move this to client?
 213 void FOG_clear(void)
 214 {
 215         if (gamemode == GAME_NEHAHRA)
 216         {
 217                 Cvar_Set("gl_fogenable", "0");
 218                 Cvar_Set("gl_fogdensity", "0.2");
 219                 Cvar_Set("gl_fogred", "0.3");
 220                 Cvar_Set("gl_foggreen", "0.3");
 221                 Cvar_Set("gl_fogblue", "0.3");
 222         }
 223         r_refdef.fog_density = 0;
 224         r_refdef.fog_red = 0;
 225         r_refdef.fog_green = 0;
 226         r_refdef.fog_blue = 0;
 227         r_refdef.fog_alpha = 1;
 228         r_refdef.fog_start = 0;
 229         r_refdef.fog_end = 0;
 230 }
 231
 232 float FogForDistance(vec_t dist)
 233 {
 234         unsigned int fogmasktableindex = (unsigned int)(dist * r_refdef.fogmasktabledistmultiplier);
 235         return r_refdef.fogmasktable[min(fogmasktableindex, FOGMASKTABLEWIDTH - 1)];
 236 }
 237
 238 float FogPoint_World(const vec3_t p)
 239 {
 240         return FogForDistance(VectorDistance((p), r_refdef.view.origin));
 241 }
 242
 243 float FogPoint_Model(const vec3_t p)
 244 {
 245         return FogForDistance(VectorDistance((p), rsurface.modelorg));
 246 }
 247
 248 static void R_BuildBlankTextures(void)
 249 {
 250         unsigned char data[4];
 251         data[2] = 128; // normal X
 252         data[1] = 128; // normal Y
 253         data[0] = 255; // normal Z
 254         data[3] = 128; // height
 255         r_texture_blanknormalmap = R_LoadTexture2D(r_main_texturepool, "blankbump", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 256         data[0] = 255;
 257         data[1] = 255;
 258         data[2] = 255;
 259         data[3] = 255;
 260         r_texture_white = R_LoadTexture2D(r_main_texturepool, "blankwhite", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 261         data[0] = 128;
 262         data[1] = 128;
 263         data[2] = 128;
 264         data[3] = 255;
 265         r_texture_grey128 = R_LoadTexture2D(r_main_texturepool, "blankgrey128", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 266         data[0] = 0;
 267         data[1] = 0;
 268         data[2] = 0;
 269         data[3] = 255;
 270         r_texture_black = R_LoadTexture2D(r_main_texturepool, "blankblack", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 271 }
 272
 273 static void R_BuildNoTexture(void)
 274 {
 275         int x, y;
 276         unsigned char pix[16][16][4];
 277         // this makes a light grey/dark grey checkerboard texture
 278         for (y = 0;y < 16;y++)
 279         {
 280                 for (x = 0;x < 16;x++)
 281                 {
 282                         if ((y < 8) ^ (x < 8))
 283                         {
 284                                 pix[y][x][0] = 128;
 285                                 pix[y][x][1] = 128;
 286                                 pix[y][x][2] = 128;
 287                                 pix[y][x][3] = 255;
 288                         }
 289                         else
 290                         {
 291                                 pix[y][x][0] = 64;
 292                                 pix[y][x][1] = 64;
 293                                 pix[y][x][2] = 64;
 294                                 pix[y][x][3] = 255;
 295                         }
 296                 }
 297         }
 298         r_texture_notexture = R_LoadTexture2D(r_main_texturepool, "notexture", 16, 16, &pix[0][0][0], TEXTYPE_BGRA, TEXF_MIPMAP | TEXF_PERSISTENT, NULL);
 299 }
 300
 301 static void R_BuildWhiteCube(void)
 302 {
 303         unsigned char data[6*1*1*4];
 304         memset(data, 255, sizeof(data));
 305         r_texture_whitecube = R_LoadTextureCubeMap(r_main_texturepool, "whitecube", 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_PERSISTENT, NULL);
 306 }
 307
 308 static void R_BuildNormalizationCube(void)
 309 {
 310         int x, y, side;
 311         vec3_t v;
 312         vec_t s, t, intensity;
 313 #define NORMSIZE 64
 314         unsigned char data[6][NORMSIZE][NORMSIZE][4];
 315         for (side = 0;side < 6;side++)
 316         {
 317                 for (y = 0;y < NORMSIZE;y++)
 318                 {
 319                         for (x = 0;x < NORMSIZE;x++)
 320                         {
 321                                 s = (x + 0.5f) * (2.0f / NORMSIZE) - 1.0f;
 322                                 t = (y + 0.5f) * (2.0f / NORMSIZE) - 1.0f;
 323                                 switch(side)
 324                                 {
 325                                 default:
 326                                 case 0:
 327                                         v[0] = 1;
 328                                         v[1] = -t;
 329                                         v[2] = -s;
 330                                         break;
 331                                 case 1:
 332                                         v[0] = -1;
 333                                         v[1] = -t;
 334                                         v[2] = s;
 335                                         break;
 336                                 case 2:
 337                                         v[0] = s;
 338                                         v[1] = 1;
 339                                         v[2] = t;
 340                                         break;
 341                                 case 3:
 342                                         v[0] = s;
 343                                         v[1] = -1;
 344                                         v[2] = -t;
 345                                         break;
 346                                 case 4:
 347                                         v[0] = s;
 348                                         v[1] = -t;
 349                                         v[2] = 1;
 350                                         break;
 351                                 case 5:
 352                                         v[0] = -s;
 353                                         v[1] = -t;
 354                                         v[2] = -1;
 355                                         break;
 356                                 }
 357                                 intensity = 127.0f / sqrt(DotProduct(v, v));
 358                                 data[side][y][x][2] = (unsigned char)(128.0f + intensity * v[0]);
 359                                 data[side][y][x][1] = (unsigned char)(128.0f + intensity * v[1]);
 360                                 data[side][y][x][0] = (unsigned char)(128.0f + intensity * v[2]);
 361                                 data[side][y][x][3] = 255;
 362                         }
 363                 }
 364         }
 365         r_texture_normalizationcube = R_LoadTextureCubeMap(r_main_texturepool, "normalcube", NORMSIZE, &data[0][0][0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_PERSISTENT, NULL);
 366 }
 367
 368 static void R_BuildFogTexture(void)
 369 {
 370         int x, b;
 371 #define FOGWIDTH 256
 372         unsigned char data1[FOGWIDTH][4];
 373         //unsigned char data2[FOGWIDTH][4];
 374         double d, r, alpha;
 375
 376         r_refdef.fogmasktable_start = r_refdef.fog_start;
 377         r_refdef.fogmasktable_alpha = r_refdef.fog_alpha;
 378         r_refdef.fogmasktable_range = r_refdef.fogrange;
 379         r_refdef.fogmasktable_density = r_refdef.fog_density;
 380
 381         r = r_refdef.fogmasktable_range / FOGMASKTABLEWIDTH;
 382         for (x = 0;x < FOGMASKTABLEWIDTH;x++)
 383         {
 384                 d = (x * r - r_refdef.fogmasktable_start);
 385                 if(developer.integer >= 100)
 386                         Con_Printf("%f ", d);
 387                 d = max(0, d);
 388                 if (r_fog_exp2.integer)
 389                         alpha = exp(-r_refdef.fogmasktable_density * r_refdef.fogmasktable_density * 0.0001 * d * d);
 390                 else
 391                         alpha = exp(-r_refdef.fogmasktable_density * 0.004 * d);
 392                 if(developer.integer >= 100)
 393                         Con_Printf(" : %f ", alpha);
 394                 alpha = 1 - (1 - alpha) * r_refdef.fogmasktable_alpha;
 395                 if(developer.integer >= 100)
 396                         Con_Printf(" = %f\n", alpha);
 397                 r_refdef.fogmasktable[x] = bound(0, alpha, 1);
 398         }
 399
 400         for (x = 0;x < FOGWIDTH;x++)
 401         {
 402                 b = (int)(r_refdef.fogmasktable[x * (FOGMASKTABLEWIDTH - 1) / (FOGWIDTH - 1)] * 255);
 403                 data1[x][0] = b;
 404                 data1[x][1] = b;
 405                 data1[x][2] = b;
 406                 data1[x][3] = 255;
 407                 //data2[x][0] = 255 - b;
 408                 //data2[x][1] = 255 - b;
 409                 //data2[x][2] = 255 - b;
 410                 //data2[x][3] = 255;
 411         }
 412         if (r_texture_fogattenuation)
 413         {
 414                 R_UpdateTexture(r_texture_fogattenuation, &data1[0][0], 0, 0, FOGWIDTH, 1);
 415                 //R_UpdateTexture(r_texture_fogattenuation, &data2[0][0], 0, 0, FOGWIDTH, 1);
 416         }
 417         else
 418         {
 419                 r_texture_fogattenuation = R_LoadTexture2D(r_main_texturepool, "fogattenuation", FOGWIDTH, 1, &data1[0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_FORCELINEAR | TEXF_CLAMP | TEXF_PERSISTENT, NULL);
 420                 //r_texture_fogintensity = R_LoadTexture2D(r_main_texturepool, "fogintensity", FOGWIDTH, 1, &data2[0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_FORCELINEAR | TEXF_CLAMP, NULL);
 421         }
 422 }
 423
 424 static const char *builtinshaderstring =
 425 "// ambient+diffuse+specular+normalmap+attenuation+cubemap+fog shader\n"
 426 "// written by Forest 'LordHavoc' Hale\n"
 427 "\n"
 428 "// common definitions between vertex shader and fragment shader:\n"
 429 "\n"
 430 "//#ifdef __GLSL_CG_DATA_TYPES\n"
 431 "//# define myhalf half\n"
 432 "//# define myhalf2 half2\n"
 433 "//# define myhalf3 half3\n"
 434 "//# define myhalf4 half4\n"
 435 "//#else\n"
 436 "# define myhalf float\n"
 437 "# define myhalf2 vec2\n"
 438 "# define myhalf3 vec3\n"
 439 "# define myhalf4 vec4\n"
 440 "//#endif\n"
 441 "\n"
 442 "#ifdef MODE_DEPTH_OR_SHADOW\n"
 443 "\n"
 444 "# ifdef VERTEX_SHADER\n"
 445 "void main(void)\n"
 446 "{\n"
 447 "       gl_Position = ftransform();\n"
 448 "}\n"
 449 "# endif\n"
 450 "\n"
 451 "#else\n"
 452 "\n"
 453 "#ifdef MODE_POSTPROCESS\n"
 454 "# ifdef VERTEX_SHADER\n"
 455 "void main(void)\n"
 456 "{\n"
 457 "       gl_FrontColor = gl_Color;\n"
 458 "       gl_Position = ftransform();\n"
 459 "       gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;\n"
 460 "#ifdef USEGLOW\n"
 461 "       gl_TexCoord[1] = gl_TextureMatrix[1] * gl_MultiTexCoord1;\n"
 462 "#endif\n"
 463 "}\n"
 464 "# endif\n"
 465 "# ifdef FRAGMENT_SHADER\n"
 466 "\n"
 467 "uniform sampler2D Texture_First;\n"
 468 "#ifdef USEGLOW\n"
 469 "uniform sampler2D Texture_Second;\n"
 470 "#endif\n"
 471 "#ifdef USEGAMMARAMPS\n"
 472 "uniform sampler2D Texture_GammaRamps;\n"
 473 "#endif\n"
 474 "#ifdef USEVERTEXTEXTUREBLEND\n"
 475 "uniform vec4 TintColor;\n"
 476 "#endif\n"
 477 "#ifdef USECOLORMOD\n"
 478 "uniform vec3 Gamma;\n"
 479 "#endif\n"
 480 "//uncomment these if you want to use them:\n"
 481 "// uniform vec4 UserVec1;\n"
 482 "// uniform vec4 UserVec2;\n"
 483 "// uniform vec4 UserVec3;\n"
 484 "// uniform vec4 UserVec4;\n"
 485 "// uniform float ClientTime;\n"
 486 "// uniform vec2 PixelSize;\n"
 487 "void main(void)\n"
 488 "{\n"
 489 "       gl_FragColor = texture2D(Texture_First, gl_TexCoord[0].xy);\n"
 490 "#ifdef USEGLOW\n"
 491 "       gl_FragColor += texture2D(Texture_Second, gl_TexCoord[1].xy);\n"
 492 "#endif\n"
 493 "#ifdef USEVERTEXTEXTUREBLEND\n"
 494 "       gl_FragColor = mix(gl_FragColor, TintColor, TintColor.a);\n"
 495 "#endif\n"
 496 "\n"
 497 "#ifdef USEPOSTPROCESSING\n"
 498 "// add your own postprocessing here or make your own ifdef for it\n"
 499 "#endif\n"
 500 "\n"
 501 "#ifdef USEGAMMARAMPS\n"
 502 "       gl_FragColor.r = texture2D(Texture_GammaRamps, vec2(gl_FragColor.r, 0)).r;\n"
 503 "       gl_FragColor.g = texture2D(Texture_GammaRamps, vec2(gl_FragColor.g, 0)).g;\n"
 504 "       gl_FragColor.b = texture2D(Texture_GammaRamps, vec2(gl_FragColor.b, 0)).b;\n"
 505 "#endif\n"
 506 "}\n"
 507 "# endif\n"
 508 "\n"
 509 "\n"
 510 "#else\n"
 511 "#ifdef MODE_GENERIC\n"
 512 "# ifdef VERTEX_SHADER\n"
 513 "void main(void)\n"
 514 "{\n"
 515 "       gl_FrontColor = gl_Color;\n"
 516 "#  ifdef USEDIFFUSE\n"
 517 "       gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;\n"
 518 "#  endif\n"
 519 "#  ifdef USESPECULAR\n"
 520 "       gl_TexCoord[1] = gl_TextureMatrix[1] * gl_MultiTexCoord1;\n"
 521 "#  endif\n"
 522 "       gl_Position = ftransform();\n"
 523 "}\n"
 524 "# endif\n"
 525 "# ifdef FRAGMENT_SHADER\n"
 526 "\n"
 527 "#  ifdef USEDIFFUSE\n"
 528 "uniform sampler2D Texture_First;\n"
 529 "#  endif\n"
 530 "#  ifdef USESPECULAR\n"
 531 "uniform sampler2D Texture_Second;\n"
 532 "#  endif\n"
 533 "\n"
 534 "void main(void)\n"
 535 "{\n"
 536 "       gl_FragColor = gl_Color;\n"
 537 "#  ifdef USEDIFFUSE\n"
 538 "       gl_FragColor *= texture2D(Texture_First, gl_TexCoord[0].xy);\n"
 539 "#  endif\n"
 540 "\n"
 541 "#  ifdef USESPECULAR\n"
 542 "       vec4 tex2 = texture2D(Texture_Second, gl_TexCoord[1].xy);\n"
 543 "#  endif\n"
 544 "#  ifdef USECOLORMAPPING\n"
 545 "       gl_FragColor *= tex2;\n"
 546 "#  endif\n"
 547 "#  ifdef USEGLOW\n"
 548 "       gl_FragColor += tex2;\n"
 549 "#  endif\n"
 550 "#  ifdef USEVERTEXTEXTUREBLEND\n"
 551 "       gl_FragColor = mix(gl_FragColor, tex2, tex2.a);\n"
 552 "#  endif\n"
 553 "}\n"
 554 "# endif\n"
 555 "\n"
 556 "#else // !MODE_GENERIC\n"
 557 "\n"
 558 "varying vec2 TexCoord;\n"
 559 "varying vec2 TexCoordLightmap;\n"
 560 "\n"
 561 "#ifdef MODE_LIGHTSOURCE\n"
 562 "varying vec3 CubeVector;\n"
 563 "#endif\n"
 564 "\n"
 565 "#ifdef MODE_LIGHTSOURCE\n"
 566 "varying vec3 LightVector;\n"
 567 "#endif\n"
 568 "#ifdef MODE_LIGHTDIRECTION\n"
 569 "varying vec3 LightVector;\n"
 570 "#endif\n"
 571 "\n"
 572 "varying vec3 EyeVector;\n"
 573 "#ifdef USEFOG\n"
 574 "varying vec3 EyeVectorModelSpace;\n"
 575 "#endif\n"
 576 "\n"
 577 "varying vec3 VectorS; // direction of S texcoord (sometimes crudely called tangent)\n"
 578 "varying vec3 VectorT; // direction of T texcoord (sometimes crudely called binormal)\n"
 579 "varying vec3 VectorR; // direction of R texcoord (surface normal)\n"
 580 "\n"
 581 "#ifdef MODE_WATER\n"
 582 "varying vec4 ModelViewProjectionPosition;\n"
 583 "#endif\n"
 584 "#ifdef MODE_REFRACTION\n"
 585 "varying vec4 ModelViewProjectionPosition;\n"
 586 "#endif\n"
 587 "#ifdef USEREFLECTION\n"
 588 "varying vec4 ModelViewProjectionPosition;\n"
 589 "#endif\n"
 590 "\n"
 591 "\n"
 592 "\n"
 593 "\n"
 594 "\n"
 595 "// vertex shader specific:\n"
 596 "#ifdef VERTEX_SHADER\n"
 597 "\n"
 598 "uniform vec3 LightPosition;\n"
 599 "uniform vec3 EyePosition;\n"
 600 "uniform vec3 LightDir;\n"
 601 "\n"
 602 "// TODO: get rid of tangentt (texcoord2) and use a crossproduct to regenerate it from tangents (texcoord1) and normal (texcoord3), this would require sending a 4 component texcoord1 with W as 1 or -1 according to which side the texcoord2 should be on\n"
 603 "\n"
 604 "void main(void)\n"
 605 "{\n"
 606 "       gl_FrontColor = gl_Color;\n"
 607 "       // copy the surface texcoord\n"
 608 "       TexCoord = vec2(gl_TextureMatrix[0] * gl_MultiTexCoord0);\n"
 609 "#ifndef MODE_LIGHTSOURCE\n"
 610 "# ifndef MODE_LIGHTDIRECTION\n"
 611 "       TexCoordLightmap = vec2(gl_MultiTexCoord4);\n"
 612 "# endif\n"
 613 "#endif\n"
 614 "\n"
 615 "#ifdef MODE_LIGHTSOURCE\n"
 616 "       // transform vertex position into light attenuation/cubemap space\n"
 617 "       // (-1 to +1 across the light box)\n"
 618 "       CubeVector = vec3(gl_TextureMatrix[3] * gl_Vertex);\n"
 619 "\n"
 620 "       // transform unnormalized light direction into tangent space\n"
 621 "       // (we use unnormalized to ensure that it interpolates correctly and then\n"
 622 "       //  normalize it per pixel)\n"
 623 "       vec3 lightminusvertex = LightPosition - gl_Vertex.xyz;\n"
 624 "       LightVector.x = dot(lightminusvertex, gl_MultiTexCoord1.xyz);\n"
 625 "       LightVector.y = dot(lightminusvertex, gl_MultiTexCoord2.xyz);\n"
 626 "       LightVector.z = dot(lightminusvertex, gl_MultiTexCoord3.xyz);\n"
 627 "#endif\n"
 628 "\n"
 629 "#ifdef MODE_LIGHTDIRECTION\n"
 630 "       LightVector.x = dot(LightDir, gl_MultiTexCoord1.xyz);\n"
 631 "       LightVector.y = dot(LightDir, gl_MultiTexCoord2.xyz);\n"
 632 "       LightVector.z = dot(LightDir, gl_MultiTexCoord3.xyz);\n"
 633 "#endif\n"
 634 "\n"
 635 "       // transform unnormalized eye direction into tangent space\n"
 636 "#ifndef USEFOG\n"
 637 "       vec3 EyeVectorModelSpace;\n"
 638 "#endif\n"
 639 "       EyeVectorModelSpace = EyePosition - gl_Vertex.xyz;\n"
 640 "       EyeVector.x = dot(EyeVectorModelSpace, gl_MultiTexCoord1.xyz);\n"
 641 "       EyeVector.y = dot(EyeVectorModelSpace, gl_MultiTexCoord2.xyz);\n"
 642 "       EyeVector.z = dot(EyeVectorModelSpace, gl_MultiTexCoord3.xyz);\n"
 643 "\n"
 644 "#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 645 "       VectorS = gl_MultiTexCoord1.xyz;\n"
 646 "       VectorT = gl_MultiTexCoord2.xyz;\n"
 647 "       VectorR = gl_MultiTexCoord3.xyz;\n"
 648 "#endif\n"
 649 "\n"
 650 "//#if defined(MODE_WATER) || defined(MODE_REFRACTION) || defined(USEREFLECTION)\n"
 651 "//     ModelViewProjectionPosition = gl_Vertex * gl_ModelViewProjectionMatrix;\n"
 652 "//     //ModelViewProjectionPosition_svector = (gl_Vertex + vec4(gl_MultiTexCoord1.xyz, 0)) * gl_ModelViewProjectionMatrix - ModelViewProjectionPosition;\n"
 653 "//     //ModelViewProjectionPosition_tvector = (gl_Vertex + vec4(gl_MultiTexCoord2.xyz, 0)) * gl_ModelViewProjectionMatrix - ModelViewProjectionPosition;\n"
 654 "//#endif\n"
 655 "\n"
 656 "// transform vertex to camera space, using ftransform to match non-VS\n"
 657 "       // rendering\n"
 658 "       gl_Position = ftransform();\n"
 659 "\n"
 660 "#ifdef MODE_WATER\n"
 661 "       ModelViewProjectionPosition = gl_Position;\n"
 662 "#endif\n"
 663 "#ifdef MODE_REFRACTION\n"
 664 "       ModelViewProjectionPosition = gl_Position;\n"
 665 "#endif\n"
 666 "#ifdef USEREFLECTION\n"
 667 "       ModelViewProjectionPosition = gl_Position;\n"
 668 "#endif\n"
 669 "}\n"
 670 "\n"
 671 "#endif // VERTEX_SHADER\n"
 672 "\n"
 673 "\n"
 674 "\n"
 675 "\n"
 676 "// fragment shader specific:\n"
 677 "#ifdef FRAGMENT_SHADER\n"
 678 "\n"
 679 "// 13 textures, we can only use up to 16 on DX9-class hardware\n"
 680 "uniform sampler2D Texture_Normal;\n"
 681 "uniform sampler2D Texture_Color;\n"
 682 "uniform sampler2D Texture_Gloss;\n"
 683 "uniform sampler2D Texture_Glow;\n"
 684 "uniform sampler2D Texture_SecondaryNormal;\n"
 685 "uniform sampler2D Texture_SecondaryColor;\n"
 686 "uniform sampler2D Texture_SecondaryGloss;\n"
 687 "uniform sampler2D Texture_SecondaryGlow;\n"
 688 "uniform sampler2D Texture_Pants;\n"
 689 "uniform sampler2D Texture_Shirt;\n"
 690 "uniform sampler2D Texture_FogMask;\n"
 691 "uniform sampler2D Texture_Lightmap;\n"
 692 "uniform sampler2D Texture_Deluxemap;\n"
 693 "uniform sampler2D Texture_Refraction;\n"
 694 "uniform sampler2D Texture_Reflection;\n"
 695 "uniform sampler2D Texture_Attenuation;\n"
 696 "uniform samplerCube Texture_Cube;\n"
 697 "\n"
 698 "uniform myhalf3 LightColor;\n"
 699 "uniform myhalf3 AmbientColor;\n"
 700 "uniform myhalf3 DiffuseColor;\n"
 701 "uniform myhalf3 SpecularColor;\n"
 702 "uniform myhalf3 Color_Pants;\n"
 703 "uniform myhalf3 Color_Shirt;\n"
 704 "uniform myhalf3 FogColor;\n"
 705 "\n"
 706 "uniform myhalf4 TintColor;\n"
 707 "\n"
 708 "\n"
 709 "//#ifdef MODE_WATER\n"
 710 "uniform vec4 DistortScaleRefractReflect;\n"
 711 "uniform vec4 ScreenScaleRefractReflect;\n"
 712 "uniform vec4 ScreenCenterRefractReflect;\n"
 713 "uniform myhalf4 RefractColor;\n"
 714 "uniform myhalf4 ReflectColor;\n"
 715 "uniform myhalf ReflectFactor;\n"
 716 "uniform myhalf ReflectOffset;\n"
 717 "//#else\n"
 718 "//# ifdef MODE_REFRACTION\n"
 719 "//uniform vec4 DistortScaleRefractReflect;\n"
 720 "//uniform vec4 ScreenScaleRefractReflect;\n"
 721 "//uniform vec4 ScreenCenterRefractReflect;\n"
 722 "//uniform myhalf4 RefractColor;\n"
 723 "//#  ifdef USEREFLECTION\n"
 724 "//uniform myhalf4 ReflectColor;\n"
 725 "//#  endif\n"
 726 "//# else\n"
 727 "//#  ifdef USEREFLECTION\n"
 728 "//uniform vec4 DistortScaleRefractReflect;\n"
 729 "//uniform vec4 ScreenScaleRefractReflect;\n"
 730 "//uniform vec4 ScreenCenterRefractReflect;\n"
 731 "//uniform myhalf4 ReflectColor;\n"
 732 "//#  endif\n"
 733 "//# endif\n"
 734 "//#endif\n"
 735 "\n"
 736 "uniform myhalf GlowScale;\n"
 737 "uniform myhalf SceneBrightness;\n"
 738 "#ifdef USECONTRASTBOOST\n"
 739 "uniform myhalf ContrastBoostCoeff;\n"
 740 "#endif\n"
 741 "\n"
 742 "uniform float OffsetMapping_Scale;\n"
 743 "uniform float OffsetMapping_Bias;\n"
 744 "uniform float FogRangeRecip;\n"
 745 "\n"
 746 "uniform myhalf AmbientScale;\n"
 747 "uniform myhalf DiffuseScale;\n"
 748 "uniform myhalf SpecularScale;\n"
 749 "uniform myhalf SpecularPower;\n"
 750 "\n"
 751 "#ifdef USEOFFSETMAPPING\n"
 752 "vec2 OffsetMapping(vec2 TexCoord)\n"
 753 "{\n"
 754 "#ifdef USEOFFSETMAPPING_RELIEFMAPPING\n"
 755 "       // 14 sample relief mapping: linear search and then binary search\n"
 756 "       // this basically steps forward a small amount repeatedly until it finds\n"
 757 "       // itself inside solid, then jitters forward and back using decreasing\n"
 758 "       // amounts to find the impact\n"
 759 "       //vec3 OffsetVector = vec3(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1), -1);\n"
 760 "       //vec3 OffsetVector = vec3(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1), -1);\n"
 761 "       vec3 OffsetVector = vec3(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1), -1);\n"
 762 "       vec3 RT = vec3(TexCoord, 1);\n"
 763 "       OffsetVector *= 0.1;\n"
 764 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 765 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 766 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 767 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 768 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 769 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 770 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 771 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 772 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 773 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z)          - 0.5);\n"
 774 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.5    - 0.25);\n"
 775 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.25   - 0.125);\n"
 776 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.125  - 0.0625);\n"
 777 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.0625 - 0.03125);\n"
 778 "       return RT.xy;\n"
 779 "#else\n"
 780 "       // 3 sample offset mapping (only 3 samples because of ATI Radeon 9500-9800/X300 limits)\n"
 781 "       // this basically moves forward the full distance, and then backs up based\n"
 782 "       // on height of samples\n"
 783 "       //vec2 OffsetVector = vec2(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1));\n"
 784 "       //vec2 OffsetVector = vec2(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1));\n"
 785 "       vec2 OffsetVector = vec2(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1));\n"
 786 "       TexCoord += OffsetVector;\n"
 787 "       OffsetVector *= 0.333;\n"
 788 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 789 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 790 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 791 "       return TexCoord;\n"
 792 "#endif\n"
 793 "}\n"
 794 "#endif // USEOFFSETMAPPING\n"
 795 "\n"
 796 "#ifdef MODE_WATER\n"
 797 "\n"
 798 "// water pass\n"
 799 "void main(void)\n"
 800 "{\n"
 801 "#ifdef USEOFFSETMAPPING\n"
 802 "       // apply offsetmapping\n"
 803 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 804 "#define TexCoord TexCoordOffset\n"
 805 "#endif\n"
 806 "\n"
 807 "       vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w);\n"
 808 "       //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
 809 "       vec4 ScreenTexCoord = ModelViewProjectionPosition.xyxy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect + vec2(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xyxy * DistortScaleRefractReflect;\n"
 810 "       float Fresnel = pow(min(1.0, 1.0 - float(normalize(EyeVector).z)), 2.0) * ReflectFactor + ReflectOffset;\n"
 811 "       gl_FragColor = mix(texture2D(Texture_Refraction, ScreenTexCoord.xy) * RefractColor, texture2D(Texture_Reflection, ScreenTexCoord.zw) * ReflectColor, Fresnel);\n"
 812 "}\n"
 813 "\n"
 814 "#else // !MODE_WATER\n"
 815 "#ifdef MODE_REFRACTION\n"
 816 "\n"
 817 "// refraction pass\n"
 818 "void main(void)\n"
 819 "{\n"
 820 "#ifdef USEOFFSETMAPPING\n"
 821 "       // apply offsetmapping\n"
 822 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 823 "#define TexCoord TexCoordOffset\n"
 824 "#endif\n"
 825 "\n"
 826 "       vec2 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect.xy * (1.0 / ModelViewProjectionPosition.w);\n"
 827 "       //vec2 ScreenTexCoord = (ModelViewProjectionPosition.xy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xy * DistortScaleRefractReflect.xy * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy;\n"
 828 "       vec2 ScreenTexCoord = ModelViewProjectionPosition.xy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy + vec2(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.xy;\n"
 829 "       gl_FragColor = texture2D(Texture_Refraction, ScreenTexCoord) * RefractColor;\n"
 830 "}\n"
 831 "\n"
 832 "#else // !MODE_REFRACTION\n"
 833 "void main(void)\n"
 834 "{\n"
 835 "#ifdef USEOFFSETMAPPING\n"
 836 "       // apply offsetmapping\n"
 837 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 838 "#define TexCoord TexCoordOffset\n"
 839 "#endif\n"
 840 "\n"
 841 "       // combine the diffuse textures (base, pants, shirt)\n"
 842 "       myhalf4 color = myhalf4(texture2D(Texture_Color, TexCoord));\n"
 843 "#ifdef USECOLORMAPPING\n"
 844 "       color.rgb += myhalf3(texture2D(Texture_Pants, TexCoord)) * Color_Pants + myhalf3(texture2D(Texture_Shirt, TexCoord)) * Color_Shirt;\n"
 845 "#endif\n"
 846 "#ifdef USEVERTEXTEXTUREBLEND\n"
 847 "       myhalf terrainblend = clamp(myhalf(gl_Color.a) * color.a * 2.0 - 0.5, myhalf(0.0), myhalf(1.0));\n"
 848 "       //myhalf terrainblend = min(myhalf(gl_Color.a) * color.a * 2.0, myhalf(1.0));\n"
 849 "       //myhalf terrainblend = myhalf(gl_Color.a) * color.a > 0.5;\n"
 850 "       color = mix(myhalf4(texture2D(Texture_SecondaryColor, TexCoord)), color, terrainblend);\n"
 851 "       //color = mix(myhalf4(1, 0, 0, 1), color, terrainblend);\n"
 852 "#endif\n"
 853 "\n"
 854 "#ifdef USEDIFFUSE\n"
 855 "       // get the surface normal and the gloss color\n"
 856 "# ifdef USEVERTEXTEXTUREBLEND\n"
 857 "       myhalf3 surfacenormal = normalize(mix(myhalf3(texture2D(Texture_SecondaryNormal, TexCoord)), myhalf3(texture2D(Texture_Normal, TexCoord)), terrainblend) - myhalf3(0.5, 0.5, 0.5));\n"
 858 "#  ifdef USESPECULAR\n"
 859 "       myhalf3 glosscolor = mix(myhalf3(texture2D(Texture_SecondaryGloss, TexCoord)), myhalf3(texture2D(Texture_Gloss, TexCoord)), terrainblend);\n"
 860 "#  endif\n"
 861 "# else\n"
 862 "       myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5));\n"
 863 "#  ifdef USESPECULAR\n"
 864 "       myhalf3 glosscolor = myhalf3(texture2D(Texture_Gloss, TexCoord));\n"
 865 "#  endif\n"
 866 "# endif\n"
 867 "#endif\n"
 868 "\n"
 869 "\n"
 870 "\n"
 871 "#ifdef MODE_LIGHTSOURCE\n"
 872 "       // light source\n"
 873 "\n"
 874 "       // calculate surface normal, light normal, and specular normal\n"
 875 "       // compute color intensity for the two textures (colormap and glossmap)\n"
 876 "       // scale by light color and attenuation as efficiently as possible\n"
 877 "       // (do as much scalar math as possible rather than vector math)\n"
 878 "# ifdef USEDIFFUSE\n"
 879 "       // get the light normal\n"
 880 "       myhalf3 diffusenormal = myhalf3(normalize(LightVector));\n"
 881 "# endif\n"
 882 "# ifdef USESPECULAR\n"
 883 "       myhalf3 specularnormal = normalize(diffusenormal + myhalf3(normalize(EyeVector)));\n"
 884 "\n"
 885 "       // calculate directional shading\n"
 886 "       color.rgb = myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0))) * (color.rgb * (AmbientScale + DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0))) + (SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower)) * glosscolor);\n"
 887 "# else\n"
 888 "#  ifdef USEDIFFUSE\n"
 889 "       // calculate directional shading\n"
 890 "       color.rgb = color.rgb * (myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0))) * (AmbientScale + DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0))));\n"
 891 "#  else\n"
 892 "       // calculate directionless shading\n"
 893 "       color.rgb = color.rgb * myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0)));\n"
 894 "#  endif\n"
 895 "# endif\n"
 896 "\n"
 897 "# ifdef USECUBEFILTER\n"
 898 "       // apply light cubemap filter\n"
 899 "       //color.rgb *= normalize(CubeVector) * 0.5 + 0.5;//vec3(textureCube(Texture_Cube, CubeVector));\n"
 900 "       color.rgb *= myhalf3(textureCube(Texture_Cube, CubeVector));\n"
 901 "# endif\n"
 902 "#endif // MODE_LIGHTSOURCE\n"
 903 "\n"
 904 "\n"
 905 "\n"
 906 "\n"
 907 "#ifdef MODE_LIGHTDIRECTION\n"
 908 "       // directional model lighting\n"
 909 "# ifdef USEDIFFUSE\n"
 910 "       // get the light normal\n"
 911 "       myhalf3 diffusenormal = myhalf3(LightVector);\n"
 912 "# endif\n"
 913 "# ifdef USESPECULAR\n"
 914 "       // calculate directional shading\n"
 915 "       color.rgb *= AmbientColor + DiffuseColor * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0));\n"
 916 "       myhalf3 specularnormal = normalize(diffusenormal + myhalf3(normalize(EyeVector)));\n"
 917 "       color.rgb += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularColor * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 918 "# else\n"
 919 "#  ifdef USEDIFFUSE\n"
 920 "\n"
 921 "       // calculate directional shading\n"
 922 "       color.rgb *= AmbientColor + DiffuseColor * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0));\n"
 923 "#  else\n"
 924 "       color.rgb *= AmbientColor;\n"
 925 "#  endif\n"
 926 "# endif\n"
 927 "#endif // MODE_LIGHTDIRECTION\n"
 928 "\n"
 929 "\n"
 930 "\n"
 931 "\n"
 932 "#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 933 "       // deluxemap lightmapping using light vectors in modelspace (evil q3map2)\n"
 934 "\n"
 935 "       // get the light normal\n"
 936 "       myhalf3 diffusenormal_modelspace = myhalf3(texture2D(Texture_Deluxemap, TexCoordLightmap)) - myhalf3(0.5);\n"
 937 "       myhalf3 diffusenormal = normalize(myhalf3(dot(diffusenormal_modelspace, myhalf3(VectorS)), dot(diffusenormal_modelspace, myhalf3(VectorT)), dot(diffusenormal_modelspace, myhalf3(VectorR))));\n"
 938 "       // calculate directional shading\n"
 939 "       myhalf3 tempcolor = color.rgb * (DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)));\n"
 940 "# ifdef USESPECULAR\n"
 941 "       myhalf3 specularnormal = myhalf3(normalize(diffusenormal + myhalf3(normalize(EyeVector))));\n"
 942 "       tempcolor += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 943 "# endif\n"
 944 "\n"
 945 "       // apply lightmap color\n"
 946 "       color.rgb = color.rgb * AmbientScale + tempcolor * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap));\n"
 947 "#endif // MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 948 "\n"
 949 "\n"
 950 "\n"
 951 "\n"
 952 "#ifdef MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n"
 953 "       // deluxemap lightmapping using light vectors in tangentspace (hmap2 -light)\n"
 954 "\n"
 955 "       // get the light normal\n"
 956 "       myhalf3 diffusenormal = normalize(myhalf3(texture2D(Texture_Deluxemap, TexCoordLightmap)) - myhalf3(0.5));\n"
 957 "       // calculate directional shading\n"
 958 "       myhalf3 tempcolor = color.rgb * (DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)));\n"
 959 "# ifdef USESPECULAR\n"
 960 "       myhalf3 specularnormal = myhalf3(normalize(diffusenormal + myhalf3(normalize(EyeVector))));\n"
 961 "       tempcolor += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 962 "# endif\n"
 963 "\n"
 964 "       // apply lightmap color\n"
 965 "       color.rgb = color.rgb * AmbientScale + tempcolor * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap));\n"
 966 "#endif // MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n"
 967 "\n"
 968 "\n"
 969 "\n"
 970 "\n"
 971 "#ifdef MODE_LIGHTMAP\n"
 972 "       // apply lightmap color\n"
 973 "       color.rgb = color.rgb * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap)) * DiffuseScale + color.rgb * AmbientScale;\n"
 974 "#endif // MODE_LIGHTMAP\n"
 975 "\n"
 976 "\n"
 977 "\n"
 978 "\n"
 979 "#ifdef MODE_VERTEXCOLOR\n"
 980 "       // apply lightmap color\n"
 981 "       color.rgb = color.rgb * myhalf3(gl_Color.rgb) * DiffuseScale + color.rgb * AmbientScale;\n"
 982 "#endif // MODE_VERTEXCOLOR\n"
 983 "\n"
 984 "\n"
 985 "\n"
 986 "\n"
 987 "#ifdef MODE_FLATCOLOR\n"
 988 "#endif // MODE_FLATCOLOR\n"
 989 "\n"
 990 "\n"
 991 "\n"
 992 "\n"
 993 "\n"
 994 "\n"
 995 "\n"
 996 "       color *= TintColor;\n"
 997 "\n"
 998 "#ifdef USEGLOW\n"
 999 "       color.rgb += myhalf3(texture2D(Texture_Glow, TexCoord)) * GlowScale;\n"
1000 "#endif\n"
1001 "\n"
1002 "#ifdef USECONTRASTBOOST\n"
1003 "       color.rgb = color.rgb / (ContrastBoostCoeff * color.rgb + myhalf3(1, 1, 1));\n"
1004 "#endif\n"
1005 "\n"
1006 "       color.rgb *= SceneBrightness;\n"
1007 "\n"
1008 "       // apply fog after Contrastboost/SceneBrightness because its color is already modified appropriately\n"
1009 "#ifdef USEFOG\n"
1010 "       color.rgb = mix(FogColor, color.rgb, myhalf(texture2D(Texture_FogMask, myhalf2(length(EyeVectorModelSpace)*FogRangeRecip, 0.0))));\n"
1011 "#endif\n"
1012 "\n"
1013 "       // reflection must come last because it already contains exactly the correct fog (the reflection render preserves camera distance from the plane, it only flips the side) and ContrastBoost/SceneBrightness\n"
1014 "#ifdef USEREFLECTION\n"
1015 "       vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w);\n"
1016 "       //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
1017 "       vec4 ScreenTexCoord = ModelViewProjectionPosition.xyxy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect + vec3(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xyxy * DistortScaleRefractReflect;\n"
1018 "       color.rgb = mix(color.rgb, myhalf3(texture2D(Texture_Reflection, ScreenTexCoord.zw)) * ReflectColor.rgb, ReflectColor.a);\n"
1019 "#endif\n"
1020 "\n"
1021 "       gl_FragColor = vec4(color);\n"
1022 "}\n"
1023 "#endif // !MODE_REFRACTION\n"
1024 "#endif // !MODE_WATER\n"
1025 "\n"
1026 "#endif // FRAGMENT_SHADER\n"
1027 "\n"
1028 "#endif // !MODE_GENERIC\n"
1029 "#endif // !MODE_POSTPROCESS\n"
1030 "#endif // !MODE_DEPTH_OR_SHADOW\n"
1031 ;
1032
1033 typedef struct shaderpermutationinfo_s
1034 {
1035         const char *pretext;
1036         const char *name;
1037 }
1038 shaderpermutationinfo_t;
1039
1040 typedef struct shadermodeinfo_s
1041 {
1042         const char *vertexfilename;
1043         const char *geometryfilename;
1044         const char *fragmentfilename;
1045         const char *pretext;
1046         const char *name;
1047 }
1048 shadermodeinfo_t;
1049
1050 typedef enum shaderpermutation_e
1051 {
1052         SHADERPERMUTATION_DIFFUSE = 1<<0, // (lightsource) whether to use directional shading
1053         SHADERPERMUTATION_VERTEXTEXTUREBLEND = 1<<1, // indicates this is a two-layer material blend based on vertex alpha (q3bsp)
1054         SHADERPERMUTATION_COLORMAPPING = 1<<2, // indicates this is a colormapped skin
1055         SHADERPERMUTATION_CONTRASTBOOST = 1<<3, // r_glsl_contrastboost boosts the contrast at low color levels (similar to gamma)
1056         SHADERPERMUTATION_FOG = 1<<4, // tint the color by fog color or black if using additive blend mode
1057         SHADERPERMUTATION_CUBEFILTER = 1<<5, // (lightsource) use cubemap light filter
1058         SHADERPERMUTATION_GLOW = 1<<6, // (lightmap) blend in an additive glow texture
1059         SHADERPERMUTATION_SPECULAR = 1<<7, // (lightsource or deluxemapping) render specular effects
1060         SHADERPERMUTATION_REFLECTION = 1<<8, // normalmap-perturbed reflection of the scene infront of the surface, preformed as an overlay on the surface
1061         SHADERPERMUTATION_OFFSETMAPPING = 1<<9, // adjust texcoords to roughly simulate a displacement mapped surface
1062         SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING = 1<<10, // adjust texcoords to accurately simulate a displacement mapped surface (requires OFFSETMAPPING to also be set!)
1063         SHADERPERMUTATION_GAMMARAMPS = 1<<11, // gamma (postprocessing only)
1064         SHADERPERMUTATION_POSTPROCESSING = 1<<12, // user defined postprocessing
1065         SHADERPERMUTATION_LIMIT = 1<<13, // size of permutations array
1066         SHADERPERMUTATION_COUNT = 13 // size of shaderpermutationinfo array
1067 }
1068 shaderpermutation_t;
1069
1070 // NOTE: MUST MATCH ORDER OF SHADERPERMUTATION_* DEFINES!
1071 shaderpermutationinfo_t shaderpermutationinfo[SHADERPERMUTATION_COUNT] =
1072 {
1073         {"#define USEDIFFUSE\n", " diffuse"},
1074         {"#define USEVERTEXTEXTUREBLEND\n", " vertextextureblend"},
1075         {"#define USECOLORMAPPING\n", " colormapping"},
1076         {"#define USECONTRASTBOOST\n", " contrastboost"},
1077         {"#define USEFOG\n", " fog"},
1078         {"#define USECUBEFILTER\n", " cubefilter"},
1079         {"#define USEGLOW\n", " glow"},
1080         {"#define USESPECULAR\n", " specular"},
1081         {"#define USEREFLECTION\n", " reflection"},
1082         {"#define USEOFFSETMAPPING\n", " offsetmapping"},
1083         {"#define USEOFFSETMAPPING_RELIEFMAPPING\n", " reliefmapping"},
1084         {"#define USEGAMMARAMPS\n", " gammaramps"},
1085         {"#define USEPOSTPROCESSING\n", " postprocessing"},
1086 };
1087
1088 // this enum is multiplied by SHADERPERMUTATION_MODEBASE
1089 typedef enum shadermode_e
1090 {
1091         SHADERMODE_GENERIC, // (particles/HUD/etc) vertex color, optionally multiplied by one texture
1092         SHADERMODE_POSTPROCESS, // postprocessing shader (r_glsl_postprocess)
1093         SHADERMODE_DEPTH_OR_SHADOW, // (depthfirst/shadows) vertex shader only
1094         SHADERMODE_FLATCOLOR, // (lightmap) modulate texture by uniform color (q1bsp, q3bsp)
1095         SHADERMODE_VERTEXCOLOR, // (lightmap) modulate texture by vertex colors (q3bsp)
1096         SHADERMODE_LIGHTMAP, // (lightmap) modulate texture by lightmap texture (q1bsp, q3bsp)
1097         SHADERMODE_LIGHTDIRECTIONMAP_MODELSPACE, // (lightmap) use directional pixel shading from texture containing modelspace light directions (q3bsp deluxemap)
1098         SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE, // (lightmap) use directional pixel shading from texture containing tangentspace light directions (q1bsp deluxemap)
1099         SHADERMODE_LIGHTDIRECTION, // (lightmap) use directional pixel shading from fixed light direction (q3bsp)
1100         SHADERMODE_LIGHTSOURCE, // (lightsource) use directional pixel shading from light source (rtlight)
1101         SHADERMODE_REFRACTION, // refract background (the material is rendered normally after this pass)
1102         SHADERMODE_WATER, // refract background and reflection (the material is rendered normally after this pass)
1103         SHADERMODE_COUNT
1104 }
1105 shadermode_t;
1106
1107 // NOTE: MUST MATCH ORDER OF SHADERMODE_* ENUMS!
1108 shadermodeinfo_t shadermodeinfo[SHADERMODE_COUNT] =
1109 {
1110         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_GENERIC\n", " generic"},
1111         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_POSTPROCESS\n", " postprocess"},
1112         {"glsl/default.glsl", NULL, NULL               , "#define MODE_DEPTH_OR_SHADOW\n", " depth/shadow"},
1113         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_FLATCOLOR\n", " flatcolor"},
1114         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_VERTEXCOLOR\n", " vertexcolor"},
1115         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTMAP\n", " lightmap"},
1116         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTIONMAP_MODELSPACE\n", " lightdirectionmap_modelspace"},
1117         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n", " lightdirectionmap_tangentspace"},
1118         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTION\n", " lightdirection"},
1119         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTSOURCE\n", " lightsource"},
1120         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_REFRACTION\n", " refraction"},
1121         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_WATER\n", " water"},
1122 };
1123
1124 typedef struct r_glsl_permutation_s
1125 {
1126         // indicates if we have tried compiling this permutation already
1127         qboolean compiled;
1128         // 0 if compilation failed
1129         int program;
1130         // locations of detected uniforms in program object, or -1 if not found
1131         int loc_Texture_First;
1132         int loc_Texture_Second;
1133         int loc_Texture_GammaRamps;
1134         int loc_Texture_Normal;
1135         int loc_Texture_Color;
1136         int loc_Texture_Gloss;
1137         int loc_Texture_Glow;
1138         int loc_Texture_SecondaryNormal;
1139         int loc_Texture_SecondaryColor;
1140         int loc_Texture_SecondaryGloss;
1141         int loc_Texture_SecondaryGlow;
1142         int loc_Texture_Pants;
1143         int loc_Texture_Shirt;
1144         int loc_Texture_FogMask;
1145         int loc_Texture_Lightmap;
1146         int loc_Texture_Deluxemap;
1147         int loc_Texture_Attenuation;
1148         int loc_Texture_Cube;
1149         int loc_Texture_Refraction;
1150         int loc_Texture_Reflection;
1151         int loc_FogColor;
1152         int loc_LightPosition;
1153         int loc_EyePosition;
1154         int loc_Color_Pants;
1155         int loc_Color_Shirt;
1156         int loc_FogRangeRecip;
1157         int loc_AmbientScale;
1158         int loc_DiffuseScale;
1159         int loc_SpecularScale;
1160         int loc_SpecularPower;
1161         int loc_GlowScale;
1162         int loc_SceneBrightness; // or: Scenebrightness * ContrastBoost
1163         int loc_OffsetMapping_Scale;
1164         int loc_TintColor;
1165         int loc_AmbientColor;
1166         int loc_DiffuseColor;
1167         int loc_SpecularColor;
1168         int loc_LightDir;
1169         int loc_ContrastBoostCoeff; // 1 - 1/ContrastBoost
1170         int loc_GammaCoeff; // 1 / gamma
1171         int loc_DistortScaleRefractReflect;
1172         int loc_ScreenScaleRefractReflect;
1173         int loc_ScreenCenterRefractReflect;
1174         int loc_RefractColor;
1175         int loc_ReflectColor;
1176         int loc_ReflectFactor;
1177         int loc_ReflectOffset;
1178         int loc_UserVec1;
1179         int loc_UserVec2;
1180         int loc_UserVec3;
1181         int loc_UserVec4;
1182         int loc_ClientTime;
1183         int loc_PixelSize;
1184 }
1185 r_glsl_permutation_t;
1186
1187 // information about each possible shader permutation
1188 r_glsl_permutation_t r_glsl_permutations[SHADERMODE_COUNT][SHADERPERMUTATION_LIMIT];
1189 // currently selected permutation
1190 r_glsl_permutation_t *r_glsl_permutation;
1191
1192 static char *R_GLSL_GetText(const char *filename, qboolean printfromdisknotice)
1193 {
1194         char *shaderstring;
1195         if (!filename || !filename[0])
1196                 return NULL;
1197         shaderstring = (char *)FS_LoadFile(filename, r_main_mempool, false, NULL);
1198         if (shaderstring)
1199         {
1200                 if (printfromdisknotice)
1201                         Con_DPrint("from disk... ");
1202                 return shaderstring;
1203         }
1204         else if (!strcmp(filename, "glsl/default.glsl"))
1205         {
1206                 shaderstring = Mem_Alloc(r_main_mempool, strlen(builtinshaderstring) + 1);
1207                 memcpy(shaderstring, builtinshaderstring, strlen(builtinshaderstring) + 1);
1208         }
1209         return shaderstring;
1210 }
1211
1212 static void R_GLSL_CompilePermutation(shadermode_t mode, shaderpermutation_t permutation)
1213 {
1214         int i;
1215         shadermodeinfo_t *modeinfo = shadermodeinfo + mode;
1216         r_glsl_permutation_t *p = &r_glsl_permutations[mode][permutation];
1217         int vertstrings_count = 0;
1218         int geomstrings_count = 0;
1219         int fragstrings_count = 0;
1220         char *vertexstring, *geometrystring, *fragmentstring;
1221         const char *vertstrings_list[32+3];
1222         const char *geomstrings_list[32+3];
1223         const char *fragstrings_list[32+3];
1224         char permutationname[256];
1225
1226         if (p->compiled)
1227                 return;
1228         p->compiled = true;
1229         p->program = 0;
1230
1231         permutationname[0] = 0;
1232         vertexstring   = R_GLSL_GetText(modeinfo->vertexfilename, true);
1233         geometrystring = R_GLSL_GetText(modeinfo->geometryfilename, false);
1234         fragmentstring = R_GLSL_GetText(modeinfo->fragmentfilename, false);
1235
1236         strlcat(permutationname, shadermodeinfo[mode].vertexfilename, sizeof(permutationname));
1237
1238         // the first pretext is which type of shader to compile as
1239         // (later these will all be bound together as a program object)
1240         vertstrings_list[vertstrings_count++] = "#define VERTEX_SHADER\n";
1241         geomstrings_list[geomstrings_count++] = "#define GEOMETRY_SHADER\n";
1242         fragstrings_list[fragstrings_count++] = "#define FRAGMENT_SHADER\n";
1243
1244         // the second pretext is the mode (for example a light source)
1245         vertstrings_list[vertstrings_count++] = shadermodeinfo[mode].pretext;
1246         geomstrings_list[geomstrings_count++] = shadermodeinfo[mode].pretext;
1247         fragstrings_list[fragstrings_count++] = shadermodeinfo[mode].pretext;
1248         strlcat(permutationname, modeinfo->name, sizeof(permutationname));
1249
1250         // now add all the permutation pretexts
1251         for (i = 0;i < SHADERPERMUTATION_COUNT;i++)
1252         {
1253                 if (permutation & (1<<i))
1254                 {
1255                         vertstrings_list[vertstrings_count++] = shaderpermutationinfo[i].pretext;
1256                         geomstrings_list[geomstrings_count++] = shaderpermutationinfo[i].pretext;
1257                         fragstrings_list[fragstrings_count++] = shaderpermutationinfo[i].pretext;
1258                         strlcat(permutationname, shaderpermutationinfo[i].name, sizeof(permutationname));
1259                 }
1260                 else
1261                 {
1262                         // keep line numbers correct
1263                         vertstrings_list[vertstrings_count++] = "\n";
1264                         geomstrings_list[geomstrings_count++] = "\n";
1265                         fragstrings_list[fragstrings_count++] = "\n";
1266                 }
1267         }
1268
1269         // now append the shader text itself
1270         vertstrings_list[vertstrings_count++] = vertexstring;
1271         geomstrings_list[geomstrings_count++] = geometrystring;
1272         fragstrings_list[fragstrings_count++] = fragmentstring;
1273
1274         // if any sources were NULL, clear the respective list
1275         if (!vertexstring)
1276                 vertstrings_count = 0;
1277         if (!geometrystring)
1278                 geomstrings_count = 0;
1279         if (!fragmentstring)
1280                 fragstrings_count = 0;
1281
1282         // compile the shader program
1283         if (vertstrings_count + geomstrings_count + fragstrings_count)
1284                 p->program = GL_Backend_CompileProgram(vertstrings_count, vertstrings_list, geomstrings_count, geomstrings_list, fragstrings_count, fragstrings_list);
1285         if (p->program)
1286         {
1287                 CHECKGLERROR
1288                 qglUseProgramObjectARB(p->program);CHECKGLERROR
1289                 // look up all the uniform variable names we care about, so we don't
1290                 // have to look them up every time we set them
1291                 p->loc_Texture_First              = qglGetUniformLocationARB(p->program, "Texture_First");
1292                 p->loc_Texture_Second             = qglGetUniformLocationARB(p->program, "Texture_Second");
1293                 p->loc_Texture_GammaRamps         = qglGetUniformLocationARB(p->program, "Texture_GammaRamps");
1294                 p->loc_Texture_Normal             = qglGetUniformLocationARB(p->program, "Texture_Normal");
1295                 p->loc_Texture_Color              = qglGetUniformLocationARB(p->program, "Texture_Color");
1296                 p->loc_Texture_Gloss              = qglGetUniformLocationARB(p->program, "Texture_Gloss");
1297                 p->loc_Texture_Glow               = qglGetUniformLocationARB(p->program, "Texture_Glow");
1298                 p->loc_Texture_SecondaryNormal    = qglGetUniformLocationARB(p->program, "Texture_SecondaryNormal");
1299                 p->loc_Texture_SecondaryColor     = qglGetUniformLocationARB(p->program, "Texture_SecondaryColor");
1300                 p->loc_Texture_SecondaryGloss     = qglGetUniformLocationARB(p->program, "Texture_SecondaryGloss");
1301                 p->loc_Texture_SecondaryGlow      = qglGetUniformLocationARB(p->program, "Texture_SecondaryGlow");
1302                 p->loc_Texture_FogMask            = qglGetUniformLocationARB(p->program, "Texture_FogMask");
1303                 p->loc_Texture_Pants              = qglGetUniformLocationARB(p->program, "Texture_Pants");
1304                 p->loc_Texture_Shirt              = qglGetUniformLocationARB(p->program, "Texture_Shirt");
1305                 p->loc_Texture_Lightmap           = qglGetUniformLocationARB(p->program, "Texture_Lightmap");
1306                 p->loc_Texture_Deluxemap          = qglGetUniformLocationARB(p->program, "Texture_Deluxemap");
1307                 p->loc_Texture_Refraction         = qglGetUniformLocationARB(p->program, "Texture_Refraction");
1308                 p->loc_Texture_Reflection         = qglGetUniformLocationARB(p->program, "Texture_Reflection");
1309                 p->loc_Texture_Attenuation        = qglGetUniformLocationARB(p->program, "Texture_Attenuation");
1310                 p->loc_Texture_Cube               = qglGetUniformLocationARB(p->program, "Texture_Cube");
1311                 p->loc_FogColor                   = qglGetUniformLocationARB(p->program, "FogColor");
1312                 p->loc_LightPosition              = qglGetUniformLocationARB(p->program, "LightPosition");
1313                 p->loc_EyePosition                = qglGetUniformLocationARB(p->program, "EyePosition");
1314                 p->loc_Color_Pants                = qglGetUniformLocationARB(p->program, "Color_Pants");
1315                 p->loc_Color_Shirt                = qglGetUniformLocationARB(p->program, "Color_Shirt");
1316                 p->loc_FogRangeRecip              = qglGetUniformLocationARB(p->program, "FogRangeRecip");
1317                 p->loc_AmbientScale               = qglGetUniformLocationARB(p->program, "AmbientScale");
1318                 p->loc_DiffuseScale               = qglGetUniformLocationARB(p->program, "DiffuseScale");
1319                 p->loc_SpecularPower              = qglGetUniformLocationARB(p->program, "SpecularPower");
1320                 p->loc_SpecularScale              = qglGetUniformLocationARB(p->program, "SpecularScale");
1321                 p->loc_GlowScale                  = qglGetUniformLocationARB(p->program, "GlowScale");
1322                 p->loc_SceneBrightness            = qglGetUniformLocationARB(p->program, "SceneBrightness");
1323                 p->loc_OffsetMapping_Scale        = qglGetUniformLocationARB(p->program, "OffsetMapping_Scale");
1324                 p->loc_TintColor                  = qglGetUniformLocationARB(p->program, "TintColor");
1325                 p->loc_AmbientColor               = qglGetUniformLocationARB(p->program, "AmbientColor");
1326                 p->loc_DiffuseColor               = qglGetUniformLocationARB(p->program, "DiffuseColor");
1327                 p->loc_SpecularColor              = qglGetUniformLocationARB(p->program, "SpecularColor");
1328                 p->loc_LightDir                   = qglGetUniformLocationARB(p->program, "LightDir");
1329                 p->loc_ContrastBoostCoeff         = qglGetUniformLocationARB(p->program, "ContrastBoostCoeff");
1330                 p->loc_DistortScaleRefractReflect = qglGetUniformLocationARB(p->program, "DistortScaleRefractReflect");
1331                 p->loc_ScreenScaleRefractReflect  = qglGetUniformLocationARB(p->program, "ScreenScaleRefractReflect");
1332                 p->loc_ScreenCenterRefractReflect = qglGetUniformLocationARB(p->program, "ScreenCenterRefractReflect");
1333                 p->loc_RefractColor               = qglGetUniformLocationARB(p->program, "RefractColor");
1334                 p->loc_ReflectColor               = qglGetUniformLocationARB(p->program, "ReflectColor");
1335                 p->loc_ReflectFactor              = qglGetUniformLocationARB(p->program, "ReflectFactor");
1336                 p->loc_ReflectOffset              = qglGetUniformLocationARB(p->program, "ReflectOffset");
1337                 p->loc_GammaCoeff                 = qglGetUniformLocationARB(p->program, "GammaCoeff");
1338                 p->loc_UserVec1                   = qglGetUniformLocationARB(p->program, "UserVec1");
1339                 p->loc_UserVec2                   = qglGetUniformLocationARB(p->program, "UserVec2");
1340                 p->loc_UserVec3                   = qglGetUniformLocationARB(p->program, "UserVec3");
1341                 p->loc_UserVec4                   = qglGetUniformLocationARB(p->program, "UserVec4");
1342                 p->loc_ClientTime                 = qglGetUniformLocationARB(p->program, "ClientTime");
1343                 p->loc_PixelSize                  = qglGetUniformLocationARB(p->program, "PixelSize");
1344                 // initialize the samplers to refer to the texture units we use
1345                 if (p->loc_Texture_First           >= 0) qglUniform1iARB(p->loc_Texture_First          , GL20TU_FIRST);
1346                 if (p->loc_Texture_Second          >= 0) qglUniform1iARB(p->loc_Texture_Second         , GL20TU_SECOND);
1347                 if (p->loc_Texture_GammaRamps      >= 0) qglUniform1iARB(p->loc_Texture_GammaRamps     , GL20TU_GAMMARAMPS);
1348                 if (p->loc_Texture_Normal          >= 0) qglUniform1iARB(p->loc_Texture_Normal         , GL20TU_NORMAL);
1349                 if (p->loc_Texture_Color           >= 0) qglUniform1iARB(p->loc_Texture_Color          , GL20TU_COLOR);
1350                 if (p->loc_Texture_Gloss           >= 0) qglUniform1iARB(p->loc_Texture_Gloss          , GL20TU_GLOSS);
1351                 if (p->loc_Texture_Glow            >= 0) qglUniform1iARB(p->loc_Texture_Glow           , GL20TU_GLOW);
1352                 if (p->loc_Texture_SecondaryNormal >= 0) qglUniform1iARB(p->loc_Texture_SecondaryNormal, GL20TU_SECONDARY_NORMAL);
1353                 if (p->loc_Texture_SecondaryColor  >= 0) qglUniform1iARB(p->loc_Texture_SecondaryColor , GL20TU_SECONDARY_COLOR);
1354                 if (p->loc_Texture_SecondaryGloss  >= 0) qglUniform1iARB(p->loc_Texture_SecondaryGloss , GL20TU_SECONDARY_GLOSS);
1355                 if (p->loc_Texture_SecondaryGlow   >= 0) qglUniform1iARB(p->loc_Texture_SecondaryGlow  , GL20TU_SECONDARY_GLOW);
1356                 if (p->loc_Texture_Pants           >= 0) qglUniform1iARB(p->loc_Texture_Pants          , GL20TU_PANTS);
1357                 if (p->loc_Texture_Shirt           >= 0) qglUniform1iARB(p->loc_Texture_Shirt          , GL20TU_SHIRT);
1358                 if (p->loc_Texture_FogMask         >= 0) qglUniform1iARB(p->loc_Texture_FogMask        , GL20TU_FOGMASK);
1359                 if (p->loc_Texture_Lightmap        >= 0) qglUniform1iARB(p->loc_Texture_Lightmap       , GL20TU_LIGHTMAP);
1360                 if (p->loc_Texture_Deluxemap       >= 0) qglUniform1iARB(p->loc_Texture_Deluxemap      , GL20TU_DELUXEMAP);
1361                 if (p->loc_Texture_Attenuation     >= 0) qglUniform1iARB(p->loc_Texture_Attenuation    , GL20TU_ATTENUATION);
1362                 if (p->loc_Texture_Cube            >= 0) qglUniform1iARB(p->loc_Texture_Cube           , GL20TU_CUBE);
1363                 if (p->loc_Texture_Refraction      >= 0) qglUniform1iARB(p->loc_Texture_Refraction     , GL20TU_REFRACTION);
1364                 if (p->loc_Texture_Reflection      >= 0) qglUniform1iARB(p->loc_Texture_Reflection     , GL20TU_REFLECTION);
1365                 CHECKGLERROR
1366                 if (developer.integer)
1367                         Con_Printf("GLSL shader %s compiled.\n", permutationname);
1368         }
1369         else
1370                 Con_Printf("GLSL shader %s failed!  some features may not work properly.\n", permutationname);
1371
1372         // free the strings
1373         if (vertexstring)
1374                 Mem_Free(vertexstring);
1375         if (geometrystring)
1376                 Mem_Free(geometrystring);
1377         if (fragmentstring)
1378                 Mem_Free(fragmentstring);
1379 }
1380
1381 void R_GLSL_Restart_f(void)
1382 {
1383         shadermode_t mode;
1384         shaderpermutation_t permutation;
1385         for (mode = 0;mode < SHADERMODE_COUNT;mode++)
1386                 for (permutation = 0;permutation < SHADERPERMUTATION_LIMIT;permutation++)
1387                         if (r_glsl_permutations[mode][permutation].program)
1388                                 GL_Backend_FreeProgram(r_glsl_permutations[mode][permutation].program);
1389         memset(r_glsl_permutations, 0, sizeof(r_glsl_permutations));
1390 }
1391
1392 void R_GLSL_DumpShader_f(void)
1393 {
1394         int i;
1395
1396         qfile_t *file = FS_Open("glsl/default.glsl", "w", false, false);
1397         if(!file)
1398         {
1399                 Con_Printf("failed to write to glsl/default.glsl\n");
1400                 return;
1401         }
1402
1403         FS_Print(file, "// The engine may define the following macros:\n");
1404         FS_Print(file, "// #define VERTEX_SHADER\n// #define GEOMETRY_SHADER\n// #define FRAGMENT_SHADER\n");
1405         for (i = 0;i < SHADERMODE_COUNT;i++)
1406                 FS_Printf(file, "// %s", shadermodeinfo[i].pretext);
1407         for (i = 0;i < SHADERPERMUTATION_COUNT;i++)
1408                 FS_Printf(file, "// %s", shaderpermutationinfo[i].pretext);
1409         FS_Print(file, "\n");
1410         FS_Print(file, builtinshaderstring);
1411         FS_Close(file);
1412
1413         Con_Printf("glsl/default.glsl written\n");
1414 }
1415
1416 void R_SetupShader_SetPermutation(shadermode_t mode, unsigned int permutation)
1417 {
1418         r_glsl_permutation_t *perm = &r_glsl_permutations[mode][permutation];
1419         if (r_glsl_permutation != perm)
1420         {
1421                 r_glsl_permutation = perm;
1422                 if (!r_glsl_permutation->program)
1423                 {
1424                         if (!r_glsl_permutation->compiled)
1425                                 R_GLSL_CompilePermutation(mode, permutation);
1426                         if (!r_glsl_permutation->program)
1427                         {
1428                                 // remove features until we find a valid permutation
1429                                 int i;
1430                                 for (i = 0;i < SHADERPERMUTATION_COUNT;i++)
1431                                 {
1432                                         // reduce i more quickly whenever it would not remove any bits
1433                                         int j = 1<<(SHADERPERMUTATION_COUNT-1-i);
1434                                         if (!(permutation & j))
1435                                                 continue;
1436                                         permutation -= j;
1437                                         r_glsl_permutation = &r_glsl_permutations[mode][permutation];
1438                                         if (!r_glsl_permutation->compiled)
1439                                                 R_GLSL_CompilePermutation(mode, permutation);
1440                                         if (r_glsl_permutation->program)
1441                                                 break;
1442                                 }
1443                                 if (i >= SHADERPERMUTATION_COUNT)
1444                                 {
1445                                         Con_Printf("OpenGL 2.0 shaders disabled - unable to find a working shader permutation fallback on this driver (set r_glsl 1 if you want to try again)\n");
1446                                         Cvar_SetValueQuick(&r_glsl, 0);
1447                                         R_GLSL_Restart_f(); // unload shaders
1448                                         return; // no bit left to clear
1449                                 }
1450                         }
1451                 }
1452                 CHECKGLERROR
1453                 qglUseProgramObjectARB(r_glsl_permutation->program);CHECKGLERROR
1454         }
1455 }
1456
1457 void R_SetupGenericShader(qboolean usetexture)
1458 {
1459         if (gl_support_fragment_shader)
1460         {
1461                 if (r_glsl.integer && r_glsl_usegeneric.integer)
1462                         R_SetupShader_SetPermutation(SHADERMODE_GENERIC, usetexture ? SHADERPERMUTATION_DIFFUSE : 0);
1463                 else if (r_glsl_permutation)
1464                 {
1465                         r_glsl_permutation = NULL;
1466                         qglUseProgramObjectARB(0);CHECKGLERROR
1467                 }
1468         }
1469 }
1470
1471 void R_SetupGenericTwoTextureShader(int texturemode)
1472 {
1473         if (gl_support_fragment_shader)
1474         {
1475                 if (r_glsl.integer && r_glsl_usegeneric.integer)
1476                         R_SetupShader_SetPermutation(SHADERMODE_GENERIC, SHADERPERMUTATION_DIFFUSE | SHADERPERMUTATION_SPECULAR | (texturemode == GL_MODULATE ? SHADERPERMUTATION_COLORMAPPING : (texturemode == GL_ADD ? SHADERPERMUTATION_GLOW : (texturemode == GL_DECAL ? SHADERPERMUTATION_VERTEXTEXTUREBLEND : 0))));
1477                 else if (r_glsl_permutation)
1478                 {
1479                         r_glsl_permutation = NULL;
1480                         qglUseProgramObjectARB(0);CHECKGLERROR
1481                 }
1482         }
1483         if (!r_glsl_permutation)
1484         {
1485                 if (texturemode == GL_DECAL && gl_combine.integer)
1486                         texturemode = GL_INTERPOLATE_ARB;
1487                 R_Mesh_TexCombine(1, texturemode, texturemode, 1, 1);
1488         }
1489 }
1490
1491 void R_SetupDepthOrShadowShader(void)
1492 {
1493         if (gl_support_fragment_shader)
1494         {
1495                 if (r_glsl.integer && r_glsl_usegeneric.integer)
1496                         R_SetupShader_SetPermutation(SHADERMODE_DEPTH_OR_SHADOW, 0);
1497                 else if (r_glsl_permutation)
1498                 {
1499                         r_glsl_permutation = NULL;
1500                         qglUseProgramObjectARB(0);CHECKGLERROR
1501                 }
1502         }
1503 }
1504
1505 extern rtexture_t *r_shadow_attenuationgradienttexture;
1506 extern rtexture_t *r_shadow_attenuation2dtexture;
1507 extern rtexture_t *r_shadow_attenuation3dtexture;
1508 void R_SetupSurfaceShader(const vec3_t lightcolorbase, qboolean modellighting, float ambientscale, float diffusescale, float specularscale, rsurfacepass_t rsurfacepass)
1509 {
1510         // select a permutation of the lighting shader appropriate to this
1511         // combination of texture, entity, light source, and fogging, only use the
1512         // minimum features necessary to avoid wasting rendering time in the
1513         // fragment shader on features that are not being used
1514         unsigned int permutation = 0;
1515         shadermode_t mode = 0;
1516         // TODO: implement geometry-shader based shadow volumes someday
1517         if (r_glsl_offsetmapping.integer)
1518         {
1519                 permutation |= SHADERPERMUTATION_OFFSETMAPPING;
1520                 if (r_glsl_offsetmapping_reliefmapping.integer)
1521                         permutation |= SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING;
1522         }
1523         if (rsurfacepass == RSURFPASS_BACKGROUND)
1524         {
1525                 // distorted background
1526                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_WATERSHADER)
1527                         mode = SHADERMODE_WATER;
1528                 else
1529                         mode = SHADERMODE_REFRACTION;
1530         }
1531         else if (rsurfacepass == RSURFPASS_RTLIGHT)
1532         {
1533                 // light source
1534                 mode = SHADERMODE_LIGHTSOURCE;
1535                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND)
1536                         permutation |= SHADERPERMUTATION_VERTEXTEXTUREBLEND;
1537                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
1538                         permutation |= SHADERPERMUTATION_CUBEFILTER;
1539                 if (diffusescale > 0)
1540                         permutation |= SHADERPERMUTATION_DIFFUSE;
1541                 if (specularscale > 0)
1542                         permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1543                 if (r_refdef.fogenabled)
1544                         permutation |= SHADERPERMUTATION_FOG;
1545                 if (rsurface.texture->colormapping)
1546                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1547                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1548                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1549         }
1550         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
1551         {
1552                 // unshaded geometry (fullbright or ambient model lighting)
1553                 mode = SHADERMODE_FLATCOLOR;
1554                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND)
1555                         permutation |= SHADERPERMUTATION_VERTEXTEXTUREBLEND;
1556                 if (rsurface.texture->currentskinframe->glow && r_hdr_glowintensity.value > 0 && !gl_lightmaps.integer)
1557                         permutation |= SHADERPERMUTATION_GLOW;
1558                 if (r_refdef.fogenabled)
1559                         permutation |= SHADERPERMUTATION_FOG;
1560                 if (rsurface.texture->colormapping)
1561                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1562                 if (r_glsl_offsetmapping.integer)
1563                 {
1564                         permutation |= SHADERPERMUTATION_OFFSETMAPPING;
1565                         if (r_glsl_offsetmapping_reliefmapping.integer)
1566                                 permutation |= SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING;
1567                 }
1568                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1569                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1570                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1571                         permutation |= SHADERPERMUTATION_REFLECTION;
1572         }
1573         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT_DIRECTIONAL)
1574         {
1575                 // directional model lighting
1576                 mode = SHADERMODE_LIGHTDIRECTION;
1577                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND)
1578                         permutation |= SHADERPERMUTATION_VERTEXTEXTUREBLEND;
1579                 if (rsurface.texture->currentskinframe->glow && r_hdr_glowintensity.value > 0 && !gl_lightmaps.integer)
1580                         permutation |= SHADERPERMUTATION_GLOW;
1581                 permutation |= SHADERPERMUTATION_DIFFUSE;
1582                 if (specularscale > 0)
1583                         permutation |= SHADERPERMUTATION_SPECULAR;
1584                 if (r_refdef.fogenabled)
1585                         permutation |= SHADERPERMUTATION_FOG;
1586                 if (rsurface.texture->colormapping)
1587                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1588                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1589                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1590                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1591                         permutation |= SHADERPERMUTATION_REFLECTION;
1592         }
1593         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
1594         {
1595                 // ambient model lighting
1596                 mode = SHADERMODE_LIGHTDIRECTION;
1597                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND)
1598                         permutation |= SHADERPERMUTATION_VERTEXTEXTUREBLEND;
1599                 if (rsurface.texture->currentskinframe->glow && r_hdr_glowintensity.value > 0 && !gl_lightmaps.integer)
1600                         permutation |= SHADERPERMUTATION_GLOW;
1601                 if (r_refdef.fogenabled)
1602                         permutation |= SHADERPERMUTATION_FOG;
1603                 if (rsurface.texture->colormapping)
1604                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1605                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1606                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1607                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1608                         permutation |= SHADERPERMUTATION_REFLECTION;
1609         }
1610         else
1611         {
1612                 // lightmapped wall
1613                 if (r_glsl_deluxemapping.integer >= 1 && rsurface.uselightmaptexture && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brushq3.deluxemapping)
1614                 {
1615                         // deluxemapping (light direction texture)
1616                         if (rsurface.uselightmaptexture && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brushq3.deluxemapping && r_refdef.scene.worldmodel->brushq3.deluxemapping_modelspace)
1617                                 mode = SHADERMODE_LIGHTDIRECTIONMAP_MODELSPACE;
1618                         else
1619                                 mode = SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE;
1620                         permutation |= SHADERPERMUTATION_DIFFUSE;
1621                         if (specularscale > 0)
1622                                 permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1623                 }
1624                 else if (r_glsl_deluxemapping.integer >= 2)
1625                 {
1626                         // fake deluxemapping (uniform light direction in tangentspace)
1627                         mode = SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE;
1628                         permutation |= SHADERPERMUTATION_DIFFUSE;
1629                         if (specularscale > 0)
1630                                 permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1631                 }
1632                 else if (rsurface.uselightmaptexture)
1633                 {
1634                         // ordinary lightmapping (q1bsp, q3bsp)
1635                         mode = SHADERMODE_LIGHTMAP;
1636                 }
1637                 else
1638                 {
1639                         // ordinary vertex coloring (q3bsp)
1640                         mode = SHADERMODE_VERTEXCOLOR;
1641                 }
1642                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND)
1643                         permutation |= SHADERPERMUTATION_VERTEXTEXTUREBLEND;
1644                 if (rsurface.texture->currentskinframe->glow && r_hdr_glowintensity.value > 0 && !gl_lightmaps.integer)
1645                         permutation |= SHADERPERMUTATION_GLOW;
1646                 if (r_refdef.fogenabled)
1647                         permutation |= SHADERPERMUTATION_FOG;
1648                 if (rsurface.texture->colormapping)
1649                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1650                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1651                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1652                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1653                         permutation |= SHADERPERMUTATION_REFLECTION;
1654         }
1655         R_SetupShader_SetPermutation(mode, permutation);
1656         if (mode == SHADERMODE_LIGHTSOURCE)
1657         {
1658                 if (r_glsl_permutation->loc_LightPosition >= 0) qglUniform3fARB(r_glsl_permutation->loc_LightPosition, rsurface.entitylightorigin[0], rsurface.entitylightorigin[1], rsurface.entitylightorigin[2]);
1659                 if (permutation & SHADERPERMUTATION_DIFFUSE)
1660                 {
1661                         if (r_glsl_permutation->loc_TintColor >= 0) qglUniform4fARB(r_glsl_permutation->loc_TintColor, lightcolorbase[0], lightcolorbase[1], lightcolorbase[2], rsurface.texture->lightmapcolor[3]);
1662                         if (r_glsl_permutation->loc_AmbientScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, ambientscale);
1663                         if (r_glsl_permutation->loc_DiffuseScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, diffusescale);
1664                         if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, specularscale);
1665                 }
1666                 else
1667                 {
1668                         // ambient only is simpler
1669                         if (r_glsl_permutation->loc_TintColor >= 0) qglUniform4fARB(r_glsl_permutation->loc_TintColor, lightcolorbase[0] * ambientscale, lightcolorbase[1] * ambientscale, lightcolorbase[2] * ambientscale, rsurface.texture->lightmapcolor[3]);
1670                         if (r_glsl_permutation->loc_AmbientScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, 1);
1671                         if (r_glsl_permutation->loc_DiffuseScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, 0);
1672                         if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, 0);
1673                 }
1674                 // additive passes are only darkened by fog, not tinted
1675                 if (r_glsl_permutation->loc_FogColor >= 0)
1676                         qglUniform3fARB(r_glsl_permutation->loc_FogColor, 0, 0, 0);
1677         }
1678         else
1679         {
1680                 if (mode == SHADERMODE_LIGHTDIRECTION)
1681                 {
1682                         if (r_glsl_permutation->loc_AmbientColor  >= 0) qglUniform3fARB(r_glsl_permutation->loc_AmbientColor , rsurface.modellight_ambient[0] * ambientscale  * 0.5f, rsurface.modellight_ambient[1] * ambientscale  * 0.5f, rsurface.modellight_ambient[2] * ambientscale  * 0.5f);
1683                         if (r_glsl_permutation->loc_DiffuseColor  >= 0) qglUniform3fARB(r_glsl_permutation->loc_DiffuseColor , rsurface.modellight_diffuse[0] * diffusescale  * 0.5f, rsurface.modellight_diffuse[1] * diffusescale  * 0.5f, rsurface.modellight_diffuse[2] * diffusescale  * 0.5f);
1684                         if (r_glsl_permutation->loc_SpecularColor >= 0) qglUniform3fARB(r_glsl_permutation->loc_SpecularColor, rsurface.modellight_diffuse[0] * specularscale * 0.5f, rsurface.modellight_diffuse[1] * specularscale * 0.5f, rsurface.modellight_diffuse[2] * specularscale * 0.5f);
1685                         if (r_glsl_permutation->loc_LightDir      >= 0) qglUniform3fARB(r_glsl_permutation->loc_LightDir, rsurface.modellight_lightdir[0], rsurface.modellight_lightdir[1], rsurface.modellight_lightdir[2]);
1686                 }
1687                 else
1688                 {
1689                         if (r_glsl_permutation->loc_AmbientScale  >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, r_refdef.scene.ambient * 1.0f / 128.0f);
1690                         if (r_glsl_permutation->loc_DiffuseScale  >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, r_refdef.lightmapintensity);
1691                         if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, r_refdef.lightmapintensity * specularscale);
1692                 }
1693                 if (r_glsl_permutation->loc_TintColor >= 0) qglUniform4fARB(r_glsl_permutation->loc_TintColor, rsurface.texture->lightmapcolor[0], rsurface.texture->lightmapcolor[1], rsurface.texture->lightmapcolor[2], rsurface.texture->lightmapcolor[3]);
1694                 if (r_glsl_permutation->loc_GlowScale     >= 0) qglUniform1fARB(r_glsl_permutation->loc_GlowScale, r_hdr_glowintensity.value);
1695                 // additive passes are only darkened by fog, not tinted
1696                 if (r_glsl_permutation->loc_FogColor >= 0)
1697                 {
1698                         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ADD)
1699                                 qglUniform3fARB(r_glsl_permutation->loc_FogColor, 0, 0, 0);
1700                         else
1701                                 qglUniform3fARB(r_glsl_permutation->loc_FogColor, r_refdef.fogcolor[0], r_refdef.fogcolor[1], r_refdef.fogcolor[2]);
1702                 }
1703                 if (r_glsl_permutation->loc_DistortScaleRefractReflect >= 0) qglUniform4fARB(r_glsl_permutation->loc_DistortScaleRefractReflect, r_water_refractdistort.value * rsurface.texture->refractfactor, r_water_refractdistort.value * rsurface.texture->refractfactor, r_water_reflectdistort.value * rsurface.texture->reflectfactor, r_water_reflectdistort.value * rsurface.texture->reflectfactor);
1704                 if (r_glsl_permutation->loc_ScreenScaleRefractReflect >= 0) qglUniform4fARB(r_glsl_permutation->loc_ScreenScaleRefractReflect, r_waterstate.screenscale[0], r_waterstate.screenscale[1], r_waterstate.screenscale[0], r_waterstate.screenscale[1]);
1705                 if (r_glsl_permutation->loc_ScreenCenterRefractReflect >= 0) qglUniform4fARB(r_glsl_permutation->loc_ScreenCenterRefractReflect, r_waterstate.screencenter[0], r_waterstate.screencenter[1], r_waterstate.screencenter[0], r_waterstate.screencenter[1]);
1706                 if (r_glsl_permutation->loc_RefractColor >= 0) qglUniform4fvARB(r_glsl_permutation->loc_RefractColor, 1, rsurface.texture->refractcolor4f);
1707                 if (r_glsl_permutation->loc_ReflectColor >= 0) qglUniform4fvARB(r_glsl_permutation->loc_ReflectColor, 1, rsurface.texture->reflectcolor4f);
1708                 if (r_glsl_permutation->loc_ReflectFactor >= 0) qglUniform1fARB(r_glsl_permutation->loc_ReflectFactor, rsurface.texture->reflectmax - rsurface.texture->reflectmin);
1709                 if (r_glsl_permutation->loc_ReflectOffset >= 0) qglUniform1fARB(r_glsl_permutation->loc_ReflectOffset, rsurface.texture->reflectmin);
1710         }
1711         if (r_glsl_permutation->loc_ContrastBoostCoeff >= 0)
1712         {
1713                 // The formula used is actually:
1714                 //   color.rgb *= ContrastBoost / ((ContrastBoost - 1) * color.rgb + 1);
1715                 //   color.rgb *= SceneBrightness;
1716                 // simplified:
1717                 //   color.rgb = [[SceneBrightness * ContrastBoost]] * color.rgb / ([[ContrastBoost - 1]] * color.rgb + 1);
1718                 // and do [[calculations]] here in the engine
1719                 qglUniform1fARB(r_glsl_permutation->loc_ContrastBoostCoeff, r_glsl_contrastboost.value - 1);
1720                 if (r_glsl_permutation->loc_SceneBrightness >= 0) qglUniform1fARB(r_glsl_permutation->loc_SceneBrightness, r_refdef.view.colorscale * r_glsl_contrastboost.value);
1721         }
1722         else
1723                 if (r_glsl_permutation->loc_SceneBrightness >= 0) qglUniform1fARB(r_glsl_permutation->loc_SceneBrightness, r_refdef.view.colorscale);
1724         if (r_glsl_permutation->loc_EyePosition >= 0) qglUniform3fARB(r_glsl_permutation->loc_EyePosition, rsurface.modelorg[0], rsurface.modelorg[1], rsurface.modelorg[2]);
1725         if (r_glsl_permutation->loc_Color_Pants >= 0)
1726         {
1727                 if (rsurface.texture->currentskinframe->pants)
1728                         qglUniform3fARB(r_glsl_permutation->loc_Color_Pants, rsurface.colormap_pantscolor[0], rsurface.colormap_pantscolor[1], rsurface.colormap_pantscolor[2]);
1729                 else
1730                         qglUniform3fARB(r_glsl_permutation->loc_Color_Pants, 0, 0, 0);
1731         }
1732         if (r_glsl_permutation->loc_Color_Shirt >= 0)
1733         {
1734                 if (rsurface.texture->currentskinframe->shirt)
1735                         qglUniform3fARB(r_glsl_permutation->loc_Color_Shirt, rsurface.colormap_shirtcolor[0], rsurface.colormap_shirtcolor[1], rsurface.colormap_shirtcolor[2]);
1736                 else
1737                         qglUniform3fARB(r_glsl_permutation->loc_Color_Shirt, 0, 0, 0);
1738         }
1739         if (r_glsl_permutation->loc_FogRangeRecip >= 0) qglUniform1fARB(r_glsl_permutation->loc_FogRangeRecip, r_refdef.fograngerecip);
1740         if (r_glsl_permutation->loc_SpecularPower >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularPower, rsurface.texture->specularpower);
1741         if (r_glsl_permutation->loc_OffsetMapping_Scale >= 0) qglUniform1fARB(r_glsl_permutation->loc_OffsetMapping_Scale, r_glsl_offsetmapping_scale.value);
1742         CHECKGLERROR
1743 }
1744
1745 #define SKINFRAME_HASH 1024
1746
1747 struct
1748 {
1749         int loadsequence; // incremented each level change
1750         memexpandablearray_t array;
1751         skinframe_t *hash[SKINFRAME_HASH];
1752 }
1753 r_skinframe;
1754
1755 void R_SkinFrame_PrepareForPurge(void)
1756 {
1757         r_skinframe.loadsequence++;
1758         // wrap it without hitting zero
1759         if (r_skinframe.loadsequence >= 200)
1760                 r_skinframe.loadsequence = 1;
1761 }
1762
1763 void R_SkinFrame_MarkUsed(skinframe_t *skinframe)
1764 {
1765         if (!skinframe)
1766                 return;
1767         // mark the skinframe as used for the purging code
1768         skinframe->loadsequence = r_skinframe.loadsequence;
1769 }
1770
1771 void R_SkinFrame_Purge(void)
1772 {
1773         int i;
1774         skinframe_t *s;
1775         for (i = 0;i < SKINFRAME_HASH;i++)
1776         {
1777                 for (s = r_skinframe.hash[i];s;s = s->next)
1778                 {
1779                         if (s->loadsequence && s->loadsequence != r_skinframe.loadsequence)
1780                         {
1781                                 if (s->merged == s->base)
1782                                         s->merged = NULL;
1783                                 // FIXME: maybe pass a pointer to the pointer to R_PurgeTexture and reset it to NULL inside? [11/29/2007 Black]
1784                                 R_PurgeTexture(s->stain );s->stain  = NULL;
1785                                 R_PurgeTexture(s->merged);s->merged = NULL;
1786                                 R_PurgeTexture(s->base  );s->base   = NULL;
1787                                 R_PurgeTexture(s->pants );s->pants  = NULL;
1788                                 R_PurgeTexture(s->shirt );s->shirt  = NULL;
1789                                 R_PurgeTexture(s->nmap  );s->nmap   = NULL;
1790                                 R_PurgeTexture(s->gloss );s->gloss  = NULL;
1791                                 R_PurgeTexture(s->glow  );s->glow   = NULL;
1792                                 R_PurgeTexture(s->fog   );s->fog    = NULL;
1793                                 s->loadsequence = 0;
1794                         }
1795                 }
1796         }
1797 }
1798
1799 skinframe_t *R_SkinFrame_FindNextByName( skinframe_t *last, const char *name ) {
1800         skinframe_t *item;
1801         char basename[MAX_QPATH];
1802
1803         Image_StripImageExtension(name, basename, sizeof(basename));
1804
1805         if( last == NULL ) {
1806                 int hashindex;
1807                 hashindex = CRC_Block((unsigned char *)basename, strlen(basename)) & (SKINFRAME_HASH - 1);
1808                 item = r_skinframe.hash[hashindex];
1809         } else {
1810                 item = last->next;
1811         }
1812
1813         // linearly search through the hash bucket
1814         for( ; item ; item = item->next ) {
1815                 if( !strcmp( item->basename, basename ) ) {
1816                         return item;
1817                 }
1818         }
1819         return NULL;
1820 }
1821
1822 skinframe_t *R_SkinFrame_Find(const char *name, int textureflags, int comparewidth, int compareheight, int comparecrc, qboolean add)
1823 {
1824         skinframe_t *item;
1825         int hashindex;
1826         char basename[MAX_QPATH];
1827
1828         Image_StripImageExtension(name, basename, sizeof(basename));
1829
1830         hashindex = CRC_Block((unsigned char *)basename, strlen(basename)) & (SKINFRAME_HASH - 1);
1831         for (item = r_skinframe.hash[hashindex];item;item = item->next)
1832                 if (!strcmp(item->basename, basename) && item->textureflags == textureflags && item->comparewidth == comparewidth && item->compareheight == compareheight && item->comparecrc == comparecrc)
1833                         break;
1834
1835         if (!item) {
1836                 rtexture_t *dyntexture;
1837                 // check whether its a dynamic texture
1838                 dyntexture = CL_GetDynTexture( basename );
1839                 if (!add && !dyntexture)
1840                         return NULL;
1841                 item = (skinframe_t *)Mem_ExpandableArray_AllocRecord(&r_skinframe.array);
1842                 memset(item, 0, sizeof(*item));
1843                 strlcpy(item->basename, basename, sizeof(item->basename));
1844                 item->base = dyntexture; // either NULL or dyntexture handle
1845                 item->textureflags = textureflags;
1846                 item->comparewidth = comparewidth;
1847                 item->compareheight = compareheight;
1848                 item->comparecrc = comparecrc;
1849                 item->next = r_skinframe.hash[hashindex];
1850                 r_skinframe.hash[hashindex] = item;
1851         }
1852         else if( item->base == NULL )
1853         {
1854                 rtexture_t *dyntexture;
1855                 // check whether its a dynamic texture
1856                 // this only needs to be done because Purge doesnt delete skinframes - only sets the texture pointers to NULL and we need to restore it before returing.. [11/29/2007 Black]
1857                 dyntexture = CL_GetDynTexture( basename );
1858                 item->base = dyntexture; // either NULL or dyntexture handle
1859         }
1860
1861         R_SkinFrame_MarkUsed(item);
1862         return item;
1863 }
1864
1865 skinframe_t *R_SkinFrame_LoadExternal(const char *name, int textureflags, qboolean complain)
1866 {
1867         // FIXME: it should be possible to disable loading various layers using
1868         // cvars, to prevent wasted loading time and memory usage if the user does
1869         // not want them
1870         qboolean loadnormalmap = true;
1871         qboolean loadgloss = true;
1872         qboolean loadpantsandshirt = true;
1873         qboolean loadglow = true;
1874         int j;
1875         unsigned char *pixels;
1876         unsigned char *bumppixels;
1877         unsigned char *basepixels = NULL;
1878         int basepixels_width;
1879         int basepixels_height;
1880         skinframe_t *skinframe;
1881
1882         if (cls.state == ca_dedicated)
1883                 return NULL;
1884
1885         // return an existing skinframe if already loaded
1886         // if loading of the first image fails, don't make a new skinframe as it
1887         // would cause all future lookups of this to be missing
1888         skinframe = R_SkinFrame_Find(name, textureflags, 0, 0, 0, false);
1889         if (skinframe && skinframe->base)
1890                 return skinframe;
1891
1892         basepixels = loadimagepixelsbgra(name, complain, true);
1893         if (basepixels == NULL)
1894                 return NULL;
1895
1896         if (developer_loading.integer)
1897                 Con_Printf("loading skin \"%s\"\n", name);
1898
1899         // we've got some pixels to store, so really allocate this new texture now
1900         if (!skinframe)
1901                 skinframe = R_SkinFrame_Find(name, textureflags, 0, 0, 0, true);
1902         skinframe->stain = NULL;
1903         skinframe->merged = NULL;
1904         skinframe->base = r_texture_notexture;
1905         skinframe->pants = NULL;
1906         skinframe->shirt = NULL;
1907         skinframe->nmap = r_texture_blanknormalmap;
1908         skinframe->gloss = NULL;
1909         skinframe->glow = NULL;
1910         skinframe->fog = NULL;
1911
1912         basepixels_width = image_width;
1913         basepixels_height = image_height;
1914         skinframe->base = R_LoadTexture2D (r_main_texturepool, skinframe->basename, basepixels_width, basepixels_height, basepixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_color.integer ? ~0 : ~TEXF_COMPRESS), NULL);
1915
1916         if (textureflags & TEXF_ALPHA)
1917         {
1918                 for (j = 3;j < basepixels_width * basepixels_height * 4;j += 4)
1919                         if (basepixels[j] < 255)
1920                                 break;
1921                 if (j < basepixels_width * basepixels_height * 4)
1922                 {
1923                         // has transparent pixels
1924                         pixels = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
1925                         for (j = 0;j < image_width * image_height * 4;j += 4)
1926                         {
1927                                 pixels[j+0] = 255;
1928                                 pixels[j+1] = 255;
1929                                 pixels[j+2] = 255;
1930                                 pixels[j+3] = basepixels[j+3];
1931                         }
1932                         skinframe->fog = R_LoadTexture2D (r_main_texturepool, va("%s_mask", skinframe->basename), image_width, image_height, pixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_color.integer ? ~0 : ~TEXF_COMPRESS), NULL);
1933                         Mem_Free(pixels);
1934                 }
1935         }
1936
1937         // _norm is the name used by tenebrae and has been adopted as standard
1938         if (loadnormalmap)
1939         {
1940                 if ((pixels = loadimagepixelsbgra(va("%s_norm", skinframe->basename), false, false)) != NULL)
1941                 {
1942                         skinframe->nmap = R_LoadTexture2D (r_main_texturepool, va("%s_nmap", skinframe->basename), image_width, image_height, pixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_normal.integer ? ~0 : ~TEXF_COMPRESS), NULL);
1943                         Mem_Free(pixels);
1944                         pixels = NULL;
1945                 }
1946                 else if (r_shadow_bumpscale_bumpmap.value > 0 && (bumppixels = loadimagepixelsbgra(va("%s_bump", skinframe->basename), false, false)) != NULL)
1947                 {
1948                         pixels = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
1949                         Image_HeightmapToNormalmap_BGRA(bumppixels, pixels, image_width, image_height, false, r_shadow_bumpscale_bumpmap.value);
1950                         skinframe->nmap = R_LoadTexture2D (r_main_texturepool, va("%s_nmap", skinframe->basename), image_width, image_height, pixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_normal.integer ? ~0 : ~TEXF_COMPRESS), NULL);
1951                         Mem_Free(pixels);
1952                         Mem_Free(bumppixels);
1953                 }
1954                 else if (r_shadow_bumpscale_basetexture.value > 0)
1955                 {
1956                         pixels = (unsigned char *)Mem_Alloc(tempmempool, basepixels_width * basepixels_height * 4);
1957                         Image_HeightmapToNormalmap_BGRA(basepixels, pixels, basepixels_width, basepixels_height, false, r_shadow_bumpscale_basetexture.value);
1958                         skinframe->nmap = R_LoadTexture2D (r_main_texturepool, va("%s_nmap", skinframe->basename), basepixels_width, basepixels_height, pixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_normal.integer ? ~0 : ~TEXF_COMPRESS), NULL);
1959                         Mem_Free(pixels);
1960                 }
1961         }
1962         // _luma is supported for tenebrae compatibility
1963         // (I think it's a very stupid name, but oh well)
1964         // _glow is the preferred name
1965         if (loadglow          && ((pixels = loadimagepixelsbgra(va("%s_glow", skinframe->basename), false, false)) != NULL || (pixels = loadimagepixelsbgra(va("%s_luma", skinframe->basename), false, false)) != NULL)) {skinframe->glow = R_LoadTexture2D (r_main_texturepool, va("%s_glow", skinframe->basename), image_width, image_height, pixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_glow.integer ? ~0 : ~TEXF_COMPRESS), NULL);Mem_Free(pixels);pixels = NULL;}
1966         if (loadgloss         && (pixels = loadimagepixelsbgra(va("%s_gloss", skinframe->basename), false, false)) != NULL) {skinframe->gloss = R_LoadTexture2D (r_main_texturepool, va("%s_gloss", skinframe->basename), image_width, image_height, pixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_gloss.integer ? ~0 : ~TEXF_COMPRESS), NULL);Mem_Free(pixels);pixels = NULL;}
1967         if (loadpantsandshirt && (pixels = loadimagepixelsbgra(va("%s_pants", skinframe->basename), false, false)) != NULL) {skinframe->pants = R_LoadTexture2D (r_main_texturepool, va("%s_pants", skinframe->basename), image_width, image_height, pixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_color.integer ? ~0 : ~TEXF_COMPRESS), NULL);Mem_Free(pixels);pixels = NULL;}
1968         if (loadpantsandshirt && (pixels = loadimagepixelsbgra(va("%s_shirt", skinframe->basename), false, false)) != NULL) {skinframe->shirt = R_LoadTexture2D (r_main_texturepool, va("%s_shirt", skinframe->basename), image_width, image_height, pixels, TEXTYPE_BGRA, skinframe->textureflags & (gl_texturecompression_color.integer ? ~0 : ~TEXF_COMPRESS), NULL);Mem_Free(pixels);pixels = NULL;}
1969
1970         if (basepixels)
1971                 Mem_Free(basepixels);
1972
1973         return skinframe;
1974 }
1975
1976 static rtexture_t *R_SkinFrame_TextureForSkinLayer(const unsigned char *in, int width, int height, const char *name, const unsigned int *palette, int textureflags, qboolean force)
1977 {
1978         int i;
1979         if (!force)
1980         {
1981                 for (i = 0;i < width*height;i++)
1982                         if (((unsigned char *)&palette[in[i]])[3] > 0)
1983                                 break;
1984                 if (i == width*height)
1985                         return NULL;
1986         }
1987         return R_LoadTexture2D (r_main_texturepool, name, width, height, in, TEXTYPE_PALETTE, textureflags, palette);
1988 }
1989
1990 // this is only used by .spr32 sprites, HL .spr files, HL .bsp files
1991 skinframe_t *R_SkinFrame_LoadInternalBGRA(const char *name, int textureflags, const unsigned char *skindata, int width, int height)
1992 {
1993         int i;
1994         unsigned char *temp1, *temp2;
1995         skinframe_t *skinframe;
1996
1997         if (cls.state == ca_dedicated)
1998                 return NULL;
1999
2000         // if already loaded just return it, otherwise make a new skinframe
2001         skinframe = R_SkinFrame_Find(name, textureflags, width, height, skindata ? CRC_Block(skindata, width*height*4) : 0, true);
2002         if (skinframe && skinframe->base)
2003                 return skinframe;
2004
2005         skinframe->stain = NULL;
2006         skinframe->merged = NULL;
2007         skinframe->base = r_texture_notexture;
2008         skinframe->pants = NULL;
2009         skinframe->shirt = NULL;
2010         skinframe->nmap = r_texture_blanknormalmap;
2011         skinframe->gloss = NULL;
2012         skinframe->glow = NULL;
2013         skinframe->fog = NULL;
2014
2015         // if no data was provided, then clearly the caller wanted to get a blank skinframe
2016         if (!skindata)
2017                 return NULL;
2018
2019         if (developer_loading.integer)
2020                 Con_Printf("loading 32bit skin \"%s\"\n", name);
2021
2022         if (r_shadow_bumpscale_basetexture.value > 0)
2023         {
2024                 temp1 = (unsigned char *)Mem_Alloc(tempmempool, width * height * 8);
2025                 temp2 = temp1 + width * height * 4;
2026                 Image_HeightmapToNormalmap_BGRA(skindata, temp2, width, height, false, r_shadow_bumpscale_basetexture.value);
2027                 skinframe->nmap = R_LoadTexture2D(r_main_texturepool, va("%s_nmap", skinframe->basename), width, height, temp2, TEXTYPE_BGRA, skinframe->textureflags | TEXF_ALPHA, NULL);
2028                 Mem_Free(temp1);
2029         }
2030         skinframe->base = skinframe->merged = R_LoadTexture2D(r_main_texturepool, skinframe->basename, width, height, skindata, TEXTYPE_BGRA, skinframe->textureflags, NULL);
2031         if (textureflags & TEXF_ALPHA)
2032         {
2033                 for (i = 3;i < width * height * 4;i += 4)
2034                         if (skindata[i] < 255)
2035                                 break;
2036                 if (i < width * height * 4)
2037                 {
2038                         unsigned char *fogpixels = (unsigned char *)Mem_Alloc(tempmempool, width * height * 4);
2039                         memcpy(fogpixels, skindata, width * height * 4);
2040                         for (i = 0;i < width * height * 4;i += 4)
2041                                 fogpixels[i] = fogpixels[i+1] = fogpixels[i+2] = 255;
2042                         skinframe->fog = R_LoadTexture2D(r_main_texturepool, va("%s_fog", skinframe->basename), width, height, fogpixels, TEXTYPE_BGRA, skinframe->textureflags, NULL);
2043                         Mem_Free(fogpixels);
2044                 }
2045         }
2046
2047         return skinframe;
2048 }
2049
2050 skinframe_t *R_SkinFrame_LoadInternalQuake(const char *name, int textureflags, int loadpantsandshirt, int loadglowtexture, const unsigned char *skindata, int width, int height)
2051 {
2052         int i;
2053         unsigned char *temp1, *temp2;
2054         skinframe_t *skinframe;
2055
2056         if (cls.state == ca_dedicated)
2057                 return NULL;
2058
2059         // if already loaded just return it, otherwise make a new skinframe
2060         skinframe = R_SkinFrame_Find(name, textureflags, width, height, skindata ? CRC_Block(skindata, width*height) : 0, true);
2061         if (skinframe && skinframe->base)
2062                 return skinframe;
2063
2064         skinframe->stain = NULL;
2065         skinframe->merged = NULL;
2066         skinframe->base = r_texture_notexture;
2067         skinframe->pants = NULL;
2068         skinframe->shirt = NULL;
2069         skinframe->nmap = r_texture_blanknormalmap;
2070         skinframe->gloss = NULL;
2071         skinframe->glow = NULL;
2072         skinframe->fog = NULL;
2073
2074         // if no data was provided, then clearly the caller wanted to get a blank skinframe
2075         if (!skindata)
2076                 return NULL;
2077
2078         if (developer_loading.integer)
2079                 Con_Printf("loading quake skin \"%s\"\n", name);
2080
2081         if (r_shadow_bumpscale_basetexture.value > 0)
2082         {
2083                 temp1 = (unsigned char *)Mem_Alloc(tempmempool, width * height * 8);
2084                 temp2 = temp1 + width * height * 4;
2085                 // use either a custom palette or the quake palette
2086                 Image_Copy8bitBGRA(skindata, temp1, width * height, palette_bgra_complete);
2087                 Image_HeightmapToNormalmap_BGRA(temp1, temp2, width, height, false, r_shadow_bumpscale_basetexture.value);
2088                 skinframe->nmap = R_LoadTexture2D(r_main_texturepool, va("%s_nmap", skinframe->basename), width, height, temp2, TEXTYPE_BGRA, skinframe->textureflags | TEXF_ALPHA, NULL);
2089                 Mem_Free(temp1);
2090         }
2091         // use either a custom palette, or the quake palette
2092         skinframe->base = skinframe->merged = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_merged", skinframe->basename), (loadglowtexture ? palette_bgra_nofullbrights : ((skinframe->textureflags & TEXF_ALPHA) ? palette_bgra_transparent : palette_bgra_complete)), skinframe->textureflags, true); // all
2093         if (loadglowtexture)
2094                 skinframe->glow = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_glow", skinframe->basename), palette_bgra_onlyfullbrights, skinframe->textureflags, false); // glow
2095         if (loadpantsandshirt)
2096         {
2097                 skinframe->pants = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_pants", skinframe->basename), palette_bgra_pantsaswhite, skinframe->textureflags, false); // pants
2098                 skinframe->shirt = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_shirt", skinframe->basename), palette_bgra_shirtaswhite, skinframe->textureflags, false); // shirt
2099         }
2100         if (skinframe->pants || skinframe->shirt)
2101                 skinframe->base = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_nospecial", skinframe->basename), loadglowtexture ? palette_bgra_nocolormapnofullbrights : palette_bgra_nocolormap, skinframe->textureflags, false); // no special colors
2102         if (textureflags & TEXF_ALPHA)
2103         {
2104                 for (i = 0;i < width * height;i++)
2105                         if (((unsigned char *)palette_bgra_alpha)[skindata[i]*4+3] < 255)
2106                                 break;
2107                 if (i < width * height)
2108                         skinframe->fog = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_fog", skinframe->basename), palette_bgra_alpha, skinframe->textureflags, true); // fog mask
2109         }
2110
2111         return skinframe;
2112 }
2113
2114 skinframe_t *R_SkinFrame_LoadMissing(void)
2115 {
2116         skinframe_t *skinframe;
2117
2118         if (cls.state == ca_dedicated)
2119                 return NULL;
2120
2121         skinframe = R_SkinFrame_Find("missing", TEXF_PRECACHE, 0, 0, 0, true);
2122         skinframe->stain = NULL;
2123         skinframe->merged = NULL;
2124         skinframe->base = r_texture_notexture;
2125         skinframe->pants = NULL;
2126         skinframe->shirt = NULL;
2127         skinframe->nmap = r_texture_blanknormalmap;
2128         skinframe->gloss = NULL;
2129         skinframe->glow = NULL;
2130         skinframe->fog = NULL;
2131
2132         return skinframe;
2133 }
2134
2135 void gl_main_start(void)
2136 {
2137         memset(r_qwskincache, 0, sizeof(r_qwskincache));
2138         memset(r_qwskincache_skinframe, 0, sizeof(r_qwskincache_skinframe));
2139
2140         // set up r_skinframe loading system for textures
2141         memset(&r_skinframe, 0, sizeof(r_skinframe));
2142         r_skinframe.loadsequence = 1;
2143         Mem_ExpandableArray_NewArray(&r_skinframe.array, r_main_mempool, sizeof(skinframe_t), 256);
2144
2145         r_main_texturepool = R_AllocTexturePool();
2146         R_BuildBlankTextures();
2147         R_BuildNoTexture();
2148         if (gl_texturecubemap)
2149         {
2150                 R_BuildWhiteCube();
2151                 R_BuildNormalizationCube();
2152         }
2153         r_texture_fogattenuation = NULL;
2154         r_texture_gammaramps = NULL;
2155         //r_texture_fogintensity = NULL;
2156         memset(&r_bloomstate, 0, sizeof(r_bloomstate));
2157         memset(&r_waterstate, 0, sizeof(r_waterstate));
2158         memset(r_glsl_permutations, 0, sizeof(r_glsl_permutations));
2159         memset(&r_svbsp, 0, sizeof (r_svbsp));
2160
2161         r_refdef.fogmasktable_density = 0;
2162 }
2163
2164 void gl_main_shutdown(void)
2165 {
2166         memset(r_qwskincache, 0, sizeof(r_qwskincache));
2167         memset(r_qwskincache_skinframe, 0, sizeof(r_qwskincache_skinframe));
2168
2169         // clear out the r_skinframe state
2170         Mem_ExpandableArray_FreeArray(&r_skinframe.array);
2171         memset(&r_skinframe, 0, sizeof(r_skinframe));
2172
2173         if (r_svbsp.nodes)
2174                 Mem_Free(r_svbsp.nodes);
2175         memset(&r_svbsp, 0, sizeof (r_svbsp));
2176         R_FreeTexturePool(&r_main_texturepool);
2177         r_texture_blanknormalmap = NULL;
2178         r_texture_white = NULL;
2179         r_texture_grey128 = NULL;
2180         r_texture_black = NULL;
2181         r_texture_whitecube = NULL;
2182         r_texture_normalizationcube = NULL;
2183         r_texture_fogattenuation = NULL;
2184         r_texture_gammaramps = NULL;
2185         //r_texture_fogintensity = NULL;
2186         memset(&r_bloomstate, 0, sizeof(r_bloomstate));
2187         memset(&r_waterstate, 0, sizeof(r_waterstate));
2188         R_GLSL_Restart_f();
2189 }
2190
2191 extern void CL_ParseEntityLump(char *entitystring);
2192 void gl_main_newmap(void)
2193 {
2194         // FIXME: move this code to client
2195         int l;
2196         char *entities, entname[MAX_QPATH];
2197         if (cl.worldmodel)
2198         {
2199                 strlcpy(entname, cl.worldmodel->name, sizeof(entname));
2200                 l = (int)strlen(entname) - 4;
2201                 if (l >= 0 && !strcmp(entname + l, ".bsp"))
2202                 {
2203                         memcpy(entname + l, ".ent", 5);
2204                         if ((entities = (char *)FS_LoadFile(entname, tempmempool, true, NULL)))
2205                         {
2206                                 CL_ParseEntityLump(entities);
2207                                 Mem_Free(entities);
2208                                 return;
2209                         }
2210                 }
2211                 if (cl.worldmodel->brush.entities)
2212                         CL_ParseEntityLump(cl.worldmodel->brush.entities);
2213         }
2214 }
2215
2216 void GL_Main_Init(void)
2217 {
2218         r_main_mempool = Mem_AllocPool("Renderer", 0, NULL);
2219
2220         Cmd_AddCommand("r_glsl_restart", R_GLSL_Restart_f, "unloads GLSL shaders, they will then be reloaded as needed");
2221         Cmd_AddCommand("r_glsl_dumpshader", R_GLSL_DumpShader_f, "dumps the engine internal default.glsl shader into glsl/default.glsl");
2222         // FIXME: the client should set up r_refdef.fog stuff including the fogmasktable
2223         if (gamemode == GAME_NEHAHRA)
2224         {
2225                 Cvar_RegisterVariable (&gl_fogenable);
2226                 Cvar_RegisterVariable (&gl_fogdensity);
2227                 Cvar_RegisterVariable (&gl_fogred);
2228                 Cvar_RegisterVariable (&gl_foggreen);
2229                 Cvar_RegisterVariable (&gl_fogblue);
2230                 Cvar_RegisterVariable (&gl_fogstart);
2231                 Cvar_RegisterVariable (&gl_fogend);
2232                 Cvar_RegisterVariable (&gl_skyclip);
2233         }
2234         Cvar_RegisterVariable(&r_depthfirst);
2235         Cvar_RegisterVariable(&r_useinfinitefarclip);
2236         Cvar_RegisterVariable(&r_nearclip);
2237         Cvar_RegisterVariable(&r_showbboxes);
2238         Cvar_RegisterVariable(&r_showsurfaces);
2239         Cvar_RegisterVariable(&r_showtris);
2240         Cvar_RegisterVariable(&r_shownormals);
2241         Cvar_RegisterVariable(&r_showlighting);
2242         Cvar_RegisterVariable(&r_showshadowvolumes);
2243         Cvar_RegisterVariable(&r_showcollisionbrushes);
2244         Cvar_RegisterVariable(&r_showcollisionbrushes_polygonfactor);
2245         Cvar_RegisterVariable(&r_showcollisionbrushes_polygonoffset);
2246         Cvar_RegisterVariable(&r_showdisabledepthtest);
2247         Cvar_RegisterVariable(&r_drawportals);
2248         Cvar_RegisterVariable(&r_drawentities);
2249         Cvar_RegisterVariable(&r_cullentities_trace);
2250         Cvar_RegisterVariable(&r_cullentities_trace_samples);
2251         Cvar_RegisterVariable(&r_cullentities_trace_enlarge);
2252         Cvar_RegisterVariable(&r_cullentities_trace_delay);
2253         Cvar_RegisterVariable(&r_drawviewmodel);
2254         Cvar_RegisterVariable(&r_speeds);
2255         Cvar_RegisterVariable(&r_fullbrights);
2256         Cvar_RegisterVariable(&r_wateralpha);
2257         Cvar_RegisterVariable(&r_dynamic);
2258         Cvar_RegisterVariable(&r_fullbright);
2259         Cvar_RegisterVariable(&r_shadows);
2260         Cvar_RegisterVariable(&r_shadows_throwdistance);
2261         Cvar_RegisterVariable(&r_q1bsp_skymasking);
2262         Cvar_RegisterVariable(&r_polygonoffset_submodel_factor);
2263         Cvar_RegisterVariable(&r_polygonoffset_submodel_offset);
2264         Cvar_RegisterVariable(&r_fog_exp2);
2265         Cvar_RegisterVariable(&r_drawfog);
2266         Cvar_RegisterVariable(&r_textureunits);
2267         Cvar_RegisterVariable(&r_glsl);
2268         Cvar_RegisterVariable(&r_glsl_contrastboost);
2269         Cvar_RegisterVariable(&r_glsl_deluxemapping);
2270         Cvar_RegisterVariable(&r_glsl_offsetmapping);
2271         Cvar_RegisterVariable(&r_glsl_offsetmapping_reliefmapping);
2272         Cvar_RegisterVariable(&r_glsl_offsetmapping_scale);
2273         Cvar_RegisterVariable(&r_glsl_postprocess);
2274         Cvar_RegisterVariable(&r_glsl_postprocess_uservec1);
2275         Cvar_RegisterVariable(&r_glsl_postprocess_uservec2);
2276         Cvar_RegisterVariable(&r_glsl_postprocess_uservec3);
2277         Cvar_RegisterVariable(&r_glsl_postprocess_uservec4);
2278         Cvar_RegisterVariable(&r_glsl_usegeneric);
2279         Cvar_RegisterVariable(&r_water);
2280         Cvar_RegisterVariable(&r_water_resolutionmultiplier);
2281         Cvar_RegisterVariable(&r_water_clippingplanebias);
2282         Cvar_RegisterVariable(&r_water_refractdistort);
2283         Cvar_RegisterVariable(&r_water_reflectdistort);
2284         Cvar_RegisterVariable(&r_lerpsprites);
2285         Cvar_RegisterVariable(&r_lerpmodels);
2286         Cvar_RegisterVariable(&r_lerplightstyles);
2287         Cvar_RegisterVariable(&r_waterscroll);
2288         Cvar_RegisterVariable(&r_bloom);
2289         Cvar_RegisterVariable(&r_bloom_colorscale);
2290         Cvar_RegisterVariable(&r_bloom_brighten);
2291         Cvar_RegisterVariable(&r_bloom_blur);
2292         Cvar_RegisterVariable(&r_bloom_resolution);
2293         Cvar_RegisterVariable(&r_bloom_colorexponent);
2294         Cvar_RegisterVariable(&r_bloom_colorsubtract);
2295         Cvar_RegisterVariable(&r_hdr);
2296         Cvar_RegisterVariable(&r_hdr_scenebrightness);
2297         Cvar_RegisterVariable(&r_hdr_glowintensity);
2298         Cvar_RegisterVariable(&r_hdr_range);
2299         Cvar_RegisterVariable(&r_smoothnormals_areaweighting);
2300         Cvar_RegisterVariable(&developer_texturelogging);
2301         Cvar_RegisterVariable(&gl_lightmaps);
2302         Cvar_RegisterVariable(&r_test);
2303         Cvar_RegisterVariable(&r_batchmode);
2304         if (gamemode == GAME_NEHAHRA || gamemode == GAME_TENEBRAE)
2305                 Cvar_SetValue("r_fullbrights", 0);
2306         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
2307
2308         Cvar_RegisterVariable(&r_track_sprites);
2309         Cvar_RegisterVariable(&r_track_sprites_flags);
2310         Cvar_RegisterVariable(&r_track_sprites_scalew);
2311         Cvar_RegisterVariable(&r_track_sprites_scaleh);
2312 }
2313
2314 extern void R_Textures_Init(void);
2315 extern void GL_Draw_Init(void);
2316 extern void GL_Main_Init(void);
2317 extern void R_Shadow_Init(void);
2318 extern void R_Sky_Init(void);
2319 extern void GL_Surf_Init(void);
2320 extern void R_Particles_Init(void);
2321 extern void R_Explosion_Init(void);
2322 extern void gl_backend_init(void);
2323 extern void Sbar_Init(void);
2324 extern void R_LightningBeams_Init(void);
2325 extern void Mod_RenderInit(void);
2326
2327 void Render_Init(void)
2328 {
2329         gl_backend_init();
2330         R_Textures_Init();
2331         GL_Main_Init();
2332         GL_Draw_Init();
2333         R_Shadow_Init();
2334         R_Sky_Init();
2335         GL_Surf_Init();
2336         Sbar_Init();
2337         R_Particles_Init();
2338         R_Explosion_Init();
2339         R_LightningBeams_Init();
2340         Mod_RenderInit();
2341 }
2342
2343 /*
2344 ===============
2345 GL_Init
2346 ===============
2347 */
2348 extern char *ENGINE_EXTENSIONS;
2349 void GL_Init (void)
2350 {
2351         gl_renderer = (const char *)qglGetString(GL_RENDERER);
2352         gl_vendor = (const char *)qglGetString(GL_VENDOR);
2353         gl_version = (const char *)qglGetString(GL_VERSION);
2354         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
2355
2356         if (!gl_extensions)
2357                 gl_extensions = "";
2358         if (!gl_platformextensions)
2359                 gl_platformextensions = "";
2360
2361         Con_Printf("GL_VENDOR: %s\n", gl_vendor);
2362         Con_Printf("GL_RENDERER: %s\n", gl_renderer);
2363         Con_Printf("GL_VERSION: %s\n", gl_version);
2364         Con_Printf("GL_EXTENSIONS: %s\n", gl_extensions);
2365         Con_Printf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
2366
2367         VID_CheckExtensions();
2368
2369         // LordHavoc: report supported extensions
2370         Con_DPrintf("\nQuakeC extensions for server and client: %s\nQuakeC extensions for menu: %s\n", vm_sv_extensions, vm_m_extensions );
2371
2372         // clear to black (loading plaque will be seen over this)
2373         CHECKGLERROR
2374         qglClearColor(0,0,0,1);CHECKGLERROR
2375         qglClear(GL_COLOR_BUFFER_BIT);CHECKGLERROR
2376 }
2377
2378 int R_CullBox(const vec3_t mins, const vec3_t maxs)
2379 {
2380         int i;
2381         mplane_t *p;
2382         for (i = 0;i < r_refdef.view.numfrustumplanes;i++)
2383         {
2384                 // skip nearclip plane, it often culls portals when you are very close, and is almost never useful
2385                 if (i == 4)
2386                         continue;
2387                 p = r_refdef.view.frustum + i;
2388                 switch(p->signbits)
2389                 {
2390                 default:
2391                 case 0:
2392                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2393                                 return true;
2394                         break;
2395                 case 1:
2396                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2397                                 return true;
2398                         break;
2399                 case 2:
2400                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2401                                 return true;
2402                         break;
2403                 case 3:
2404                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2405                                 return true;
2406                         break;
2407                 case 4:
2408                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2409                                 return true;
2410                         break;
2411                 case 5:
2412                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2413                                 return true;
2414                         break;
2415                 case 6:
2416                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2417                                 return true;
2418                         break;
2419                 case 7:
2420                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2421                                 return true;
2422                         break;
2423                 }
2424         }
2425         return false;
2426 }
2427
2428 int R_CullBoxCustomPlanes(const vec3_t mins, const vec3_t maxs, int numplanes, const mplane_t *planes)
2429 {
2430         int i;
2431         const mplane_t *p;
2432         for (i = 0;i < numplanes;i++)
2433         {
2434                 p = planes + i;
2435                 switch(p->signbits)
2436                 {
2437                 default:
2438                 case 0:
2439                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2440                                 return true;
2441                         break;
2442                 case 1:
2443                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2444                                 return true;
2445                         break;
2446                 case 2:
2447                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2448                                 return true;
2449                         break;
2450                 case 3:
2451                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2452                                 return true;
2453                         break;
2454                 case 4:
2455                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2456                                 return true;
2457                         break;
2458                 case 5:
2459                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2460                                 return true;
2461                         break;
2462                 case 6:
2463                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2464                                 return true;
2465                         break;
2466                 case 7:
2467                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2468                                 return true;
2469                         break;
2470                 }
2471         }
2472         return false;
2473 }
2474
2475 //==================================================================================
2476
2477 static void R_View_UpdateEntityVisible (void)
2478 {
2479         int i, renderimask;
2480         entity_render_t *ent;
2481
2482         if (!r_drawentities.integer)
2483                 return;
2484
2485         renderimask = r_refdef.envmap ? (RENDER_EXTERIORMODEL | RENDER_VIEWMODEL) : ((chase_active.integer || r_waterstate.renderingscene) ? RENDER_VIEWMODEL : RENDER_EXTERIORMODEL);
2486         if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.BoxTouchingVisibleLeafs)
2487         {
2488                 // worldmodel can check visibility
2489                 for (i = 0;i < r_refdef.scene.numentities;i++)
2490                 {
2491                         ent = r_refdef.scene.entities[i];
2492                         r_refdef.viewcache.entityvisible[i] = !(ent->flags & renderimask) && ((ent->model && ent->model->type == mod_sprite && (ent->model->sprite.sprnum_type == SPR_LABEL || ent->model->sprite.sprnum_type == SPR_LABEL_SCALE)) || !R_CullBox(ent->mins, ent->maxs)) && ((ent->effects & EF_NODEPTHTEST) || (ent->flags & RENDER_VIEWMODEL) || r_refdef.scene.worldmodel->brush.BoxTouchingVisibleLeafs(r_refdef.scene.worldmodel, r_refdef.viewcache.world_leafvisible, ent->mins, ent->maxs));
2493
2494                 }
2495                 if(r_cullentities_trace.integer && r_refdef.scene.worldmodel->brush.TraceLineOfSight)
2496                 {
2497                         for (i = 0;i < r_refdef.scene.numentities;i++)
2498                         {
2499                                 ent = r_refdef.scene.entities[i];
2500                                 if(r_refdef.viewcache.entityvisible[i] && !(ent->effects & EF_NODEPTHTEST) && !(ent->flags & RENDER_VIEWMODEL) && !(ent->model && (ent->model->name[0] == '*')))
2501                                 {
2502                                         if(Mod_CanSeeBox_Trace(r_cullentities_trace_samples.integer, r_cullentities_trace_enlarge.value, r_refdef.scene.worldmodel, r_refdef.view.origin, ent->mins, ent->maxs))
2503                                                 ent->last_trace_visibility = realtime;
2504                                         if(ent->last_trace_visibility < realtime - r_cullentities_trace_delay.value)
2505                                                 r_refdef.viewcache.entityvisible[i] = 0;
2506                                 }
2507                         }
2508                 }
2509         }
2510         else
2511         {
2512                 // no worldmodel or it can't check visibility
2513                 for (i = 0;i < r_refdef.scene.numentities;i++)
2514                 {
2515                         ent = r_refdef.scene.entities[i];
2516                         r_refdef.viewcache.entityvisible[i] = !(ent->flags & renderimask) && ((ent->model && ent->model->type == mod_sprite && (ent->model->sprite.sprnum_type == SPR_LABEL || ent->model->sprite.sprnum_type == SPR_LABEL_SCALE)) || !R_CullBox(ent->mins, ent->maxs));
2517                 }
2518         }
2519 }
2520
2521 // only used if skyrendermasked, and normally returns false
2522 int R_DrawBrushModelsSky (void)
2523 {
2524         int i, sky;
2525         entity_render_t *ent;
2526
2527         if (!r_drawentities.integer)
2528                 return false;
2529
2530         sky = false;
2531         for (i = 0;i < r_refdef.scene.numentities;i++)
2532         {
2533                 if (!r_refdef.viewcache.entityvisible[i])
2534                         continue;
2535                 ent = r_refdef.scene.entities[i];
2536                 if (!ent->model || !ent->model->DrawSky)
2537                         continue;
2538                 ent->model->DrawSky(ent);
2539                 sky = true;
2540         }
2541         return sky;
2542 }
2543
2544 static void R_DrawNoModel(entity_render_t *ent);
2545 static void R_DrawModels(void)
2546 {
2547         int i;
2548         entity_render_t *ent;
2549
2550         if (!r_drawentities.integer)
2551                 return;
2552
2553         for (i = 0;i < r_refdef.scene.numentities;i++)
2554         {
2555                 if (!r_refdef.viewcache.entityvisible[i])
2556                         continue;
2557                 ent = r_refdef.scene.entities[i];
2558                 r_refdef.stats.entities++;
2559                 if (ent->model && ent->model->Draw != NULL)
2560                         ent->model->Draw(ent);
2561                 else
2562                         R_DrawNoModel(ent);
2563         }
2564 }
2565
2566 static void R_DrawModelsDepth(void)
2567 {
2568         int i;
2569         entity_render_t *ent;
2570
2571         if (!r_drawentities.integer)
2572                 return;
2573
2574         for (i = 0;i < r_refdef.scene.numentities;i++)
2575         {
2576                 if (!r_refdef.viewcache.entityvisible[i])
2577                         continue;
2578                 ent = r_refdef.scene.entities[i];
2579                 if (ent->model && ent->model->DrawDepth != NULL)
2580                         ent->model->DrawDepth(ent);
2581         }
2582 }
2583
2584 static void R_DrawModelsDebug(void)
2585 {
2586         int i;
2587         entity_render_t *ent;
2588
2589         if (!r_drawentities.integer)
2590                 return;
2591
2592         for (i = 0;i < r_refdef.scene.numentities;i++)
2593         {
2594                 if (!r_refdef.viewcache.entityvisible[i])
2595                         continue;
2596                 ent = r_refdef.scene.entities[i];
2597                 if (ent->model && ent->model->DrawDebug != NULL)
2598                         ent->model->DrawDebug(ent);
2599         }
2600 }
2601
2602 static void R_DrawModelsAddWaterPlanes(void)
2603 {
2604         int i;
2605         entity_render_t *ent;
2606
2607         if (!r_drawentities.integer)
2608                 return;
2609
2610         for (i = 0;i < r_refdef.scene.numentities;i++)
2611         {
2612                 if (!r_refdef.viewcache.entityvisible[i])
2613                         continue;
2614                 ent = r_refdef.scene.entities[i];
2615                 if (ent->model && ent->model->DrawAddWaterPlanes != NULL)
2616                         ent->model->DrawAddWaterPlanes(ent);
2617         }
2618 }
2619
2620 static void R_View_SetFrustum(void)
2621 {
2622         int i;
2623         double slopex, slopey;
2624         vec3_t forward, left, up, origin;
2625
2626         // we can't trust r_refdef.view.forward and friends in reflected scenes
2627         Matrix4x4_ToVectors(&r_refdef.view.matrix, forward, left, up, origin);
2628
2629 #if 0
2630         r_refdef.view.frustum[0].normal[0] = 0 - 1.0 / r_refdef.view.frustum_x;
2631         r_refdef.view.frustum[0].normal[1] = 0 - 0;
2632         r_refdef.view.frustum[0].normal[2] = -1 - 0;
2633         r_refdef.view.frustum[1].normal[0] = 0 + 1.0 / r_refdef.view.frustum_x;
2634         r_refdef.view.frustum[1].normal[1] = 0 + 0;
2635         r_refdef.view.frustum[1].normal[2] = -1 + 0;
2636         r_refdef.view.frustum[2].normal[0] = 0 - 0;
2637         r_refdef.view.frustum[2].normal[1] = 0 - 1.0 / r_refdef.view.frustum_y;
2638         r_refdef.view.frustum[2].normal[2] = -1 - 0;
2639         r_refdef.view.frustum[3].normal[0] = 0 + 0;
2640         r_refdef.view.frustum[3].normal[1] = 0 + 1.0 / r_refdef.view.frustum_y;
2641         r_refdef.view.frustum[3].normal[2] = -1 + 0;
2642 #endif
2643
2644 #if 0
2645         zNear = r_refdef.nearclip;
2646         nudge = 1.0 - 1.0 / (1<<23);
2647         r_refdef.view.frustum[4].normal[0] = 0 - 0;
2648         r_refdef.view.frustum[4].normal[1] = 0 - 0;
2649         r_refdef.view.frustum[4].normal[2] = -1 - -nudge;
2650         r_refdef.view.frustum[4].dist = 0 - -2 * zNear * nudge;
2651         r_refdef.view.frustum[5].normal[0] = 0 + 0;
2652         r_refdef.view.frustum[5].normal[1] = 0 + 0;
2653         r_refdef.view.frustum[5].normal[2] = -1 + -nudge;
2654         r_refdef.view.frustum[5].dist = 0 + -2 * zNear * nudge;
2655 #endif
2656
2657
2658
2659 #if 0
2660         r_refdef.view.frustum[0].normal[0] = m[3] - m[0];
2661         r_refdef.view.frustum[0].normal[1] = m[7] - m[4];
2662         r_refdef.view.frustum[0].normal[2] = m[11] - m[8];
2663         r_refdef.view.frustum[0].dist = m[15] - m[12];
2664
2665         r_refdef.view.frustum[1].normal[0] = m[3] + m[0];
2666         r_refdef.view.frustum[1].normal[1] = m[7] + m[4];
2667         r_refdef.view.frustum[1].normal[2] = m[11] + m[8];
2668         r_refdef.view.frustum[1].dist = m[15] + m[12];
2669
2670         r_refdef.view.frustum[2].normal[0] = m[3] - m[1];
2671         r_refdef.view.frustum[2].normal[1] = m[7] - m[5];
2672         r_refdef.view.frustum[2].normal[2] = m[11] - m[9];
2673         r_refdef.view.frustum[2].dist = m[15] - m[13];
2674
2675         r_refdef.view.frustum[3].normal[0] = m[3] + m[1];
2676         r_refdef.view.frustum[3].normal[1] = m[7] + m[5];
2677         r_refdef.view.frustum[3].normal[2] = m[11] + m[9];
2678         r_refdef.view.frustum[3].dist = m[15] + m[13];
2679
2680         r_refdef.view.frustum[4].normal[0] = m[3] - m[2];
2681         r_refdef.view.frustum[4].normal[1] = m[7] - m[6];
2682         r_refdef.view.frustum[4].normal[2] = m[11] - m[10];
2683         r_refdef.view.frustum[4].dist = m[15] - m[14];
2684
2685         r_refdef.view.frustum[5].normal[0] = m[3] + m[2];
2686         r_refdef.view.frustum[5].normal[1] = m[7] + m[6];
2687         r_refdef.view.frustum[5].normal[2] = m[11] + m[10];
2688         r_refdef.view.frustum[5].dist = m[15] + m[14];
2689 #endif
2690
2691         if (r_refdef.view.useperspective)
2692         {
2693                 slopex = 1.0 / r_refdef.view.frustum_x;
2694                 slopey = 1.0 / r_refdef.view.frustum_y;
2695                 VectorMA(forward, -slopex, left, r_refdef.view.frustum[0].normal);
2696                 VectorMA(forward,  slopex, left, r_refdef.view.frustum[1].normal);
2697                 VectorMA(forward, -slopey, up  , r_refdef.view.frustum[2].normal);
2698                 VectorMA(forward,  slopey, up  , r_refdef.view.frustum[3].normal);
2699                 VectorCopy(forward, r_refdef.view.frustum[4].normal);
2700
2701                 // Leaving those out was a mistake, those were in the old code, and they
2702                 // fix a reproducable bug in this one: frustum culling got fucked up when viewmatrix was an identity matrix
2703                 // I couldn't reproduce it after adding those normalizations. --blub
2704                 VectorNormalize(r_refdef.view.frustum[0].normal);
2705                 VectorNormalize(r_refdef.view.frustum[1].normal);
2706                 VectorNormalize(r_refdef.view.frustum[2].normal);
2707                 VectorNormalize(r_refdef.view.frustum[3].normal);
2708
2709                 // calculate frustum corners, which are used to calculate deformed frustum planes for shadow caster culling
2710                 VectorMAMAMAM(1, r_refdef.view.origin, 1024, forward, -1024 * slopex, left, -1024 * slopey, up, r_refdef.view.frustumcorner[0]);
2711                 VectorMAMAMAM(1, r_refdef.view.origin, 1024, forward,  1024 * slopex, left, -1024 * slopey, up, r_refdef.view.frustumcorner[1]);
2712                 VectorMAMAMAM(1, r_refdef.view.origin, 1024, forward, -1024 * slopex, left,  1024 * slopey, up, r_refdef.view.frustumcorner[2]);
2713                 VectorMAMAMAM(1, r_refdef.view.origin, 1024, forward,  1024 * slopex, left,  1024 * slopey, up, r_refdef.view.frustumcorner[3]);
2714
2715                 r_refdef.view.frustum[0].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[0].normal);
2716                 r_refdef.view.frustum[1].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[1].normal);
2717                 r_refdef.view.frustum[2].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[2].normal);
2718                 r_refdef.view.frustum[3].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[3].normal);
2719                 r_refdef.view.frustum[4].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[4].normal) + r_refdef.nearclip;
2720         }
2721         else
2722         {
2723                 VectorScale(left, -r_refdef.view.ortho_x, r_refdef.view.frustum[0].normal);
2724                 VectorScale(left,  r_refdef.view.ortho_x, r_refdef.view.frustum[1].normal);
2725                 VectorScale(up, -r_refdef.view.ortho_y, r_refdef.view.frustum[2].normal);
2726                 VectorScale(up,  r_refdef.view.ortho_y, r_refdef.view.frustum[3].normal);
2727                 VectorCopy(forward, r_refdef.view.frustum[4].normal);
2728                 r_refdef.view.frustum[0].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[0].normal) + r_refdef.view.ortho_x;
2729                 r_refdef.view.frustum[1].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[1].normal) + r_refdef.view.ortho_x;
2730                 r_refdef.view.frustum[2].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[2].normal) + r_refdef.view.ortho_y;
2731                 r_refdef.view.frustum[3].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[3].normal) + r_refdef.view.ortho_y;
2732                 r_refdef.view.frustum[4].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[4].normal) + r_refdef.nearclip;
2733         }
2734         r_refdef.view.numfrustumplanes = 5;
2735
2736         if (r_refdef.view.useclipplane)
2737         {
2738                 r_refdef.view.numfrustumplanes = 6;
2739                 r_refdef.view.frustum[5] = r_refdef.view.clipplane;
2740         }
2741
2742         for (i = 0;i < r_refdef.view.numfrustumplanes;i++)
2743                 PlaneClassify(r_refdef.view.frustum + i);
2744
2745         // LordHavoc: note to all quake engine coders, Quake had a special case
2746         // for 90 degrees which assumed a square view (wrong), so I removed it,
2747         // Quake2 has it disabled as well.
2748
2749         // rotate R_VIEWFORWARD right by FOV_X/2 degrees
2750         //RotatePointAroundVector( r_refdef.view.frustum[0].normal, up, forward, -(90 - r_refdef.fov_x / 2));
2751         //r_refdef.view.frustum[0].dist = DotProduct (r_refdef.view.origin, frustum[0].normal);
2752         //PlaneClassify(&frustum[0]);
2753
2754         // rotate R_VIEWFORWARD left by FOV_X/2 degrees
2755         //RotatePointAroundVector( r_refdef.view.frustum[1].normal, up, forward, (90 - r_refdef.fov_x / 2));
2756         //r_refdef.view.frustum[1].dist = DotProduct (r_refdef.view.origin, frustum[1].normal);
2757         //PlaneClassify(&frustum[1]);
2758
2759         // rotate R_VIEWFORWARD up by FOV_X/2 degrees
2760         //RotatePointAroundVector( r_refdef.view.frustum[2].normal, left, forward, -(90 - r_refdef.fov_y / 2));
2761         //r_refdef.view.frustum[2].dist = DotProduct (r_refdef.view.origin, frustum[2].normal);
2762         //PlaneClassify(&frustum[2]);
2763
2764         // rotate R_VIEWFORWARD down by FOV_X/2 degrees
2765         //RotatePointAroundVector( r_refdef.view.frustum[3].normal, left, forward, (90 - r_refdef.fov_y / 2));
2766         //r_refdef.view.frustum[3].dist = DotProduct (r_refdef.view.origin, frustum[3].normal);
2767         //PlaneClassify(&frustum[3]);
2768
2769         // nearclip plane
2770         //VectorCopy(forward, r_refdef.view.frustum[4].normal);
2771         //r_refdef.view.frustum[4].dist = DotProduct (r_refdef.view.origin, frustum[4].normal) + r_nearclip.value;
2772         //PlaneClassify(&frustum[4]);
2773 }
2774
2775 void R_View_Update(void)
2776 {
2777         R_View_SetFrustum();
2778         R_View_WorldVisibility(r_refdef.view.useclipplane);
2779         R_View_UpdateEntityVisible();
2780 }
2781
2782 void R_SetupView(qboolean allowwaterclippingplane)
2783 {
2784         if (!r_refdef.view.useperspective)
2785                 GL_SetupView_Mode_Ortho(-r_refdef.view.ortho_x, -r_refdef.view.ortho_y, r_refdef.view.ortho_x, r_refdef.view.ortho_y, -r_refdef.farclip, r_refdef.farclip);
2786         else if (gl_stencil && r_useinfinitefarclip.integer)
2787                 GL_SetupView_Mode_PerspectiveInfiniteFarClip(r_refdef.view.frustum_x, r_refdef.view.frustum_y, r_refdef.nearclip);
2788         else
2789                 GL_SetupView_Mode_Perspective(r_refdef.view.frustum_x, r_refdef.view.frustum_y, r_refdef.nearclip, r_refdef.farclip);
2790
2791         GL_SetupView_Orientation_FromEntity(&r_refdef.view.matrix);
2792
2793         if (r_refdef.view.useclipplane && allowwaterclippingplane)
2794         {
2795                 // LordHavoc: couldn't figure out how to make this approach the
2796                 vec_t dist = r_refdef.view.clipplane.dist - r_water_clippingplanebias.value;
2797                 vec_t viewdist = DotProduct(r_refdef.view.origin, r_refdef.view.clipplane.normal);
2798                 if (viewdist < r_refdef.view.clipplane.dist + r_water_clippingplanebias.value)
2799                         dist = r_refdef.view.clipplane.dist;
2800                 GL_SetupView_ApplyCustomNearClipPlane(r_refdef.view.clipplane.normal[0], r_refdef.view.clipplane.normal[1], r_refdef.view.clipplane.normal[2], dist);
2801         }
2802 }
2803
2804 void R_ResetViewRendering2D(void)
2805 {
2806         DrawQ_Finish();
2807
2808         // GL is weird because it's bottom to top, r_refdef.view.y is top to bottom
2809         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
2810         GL_SetupView_Mode_Ortho(0, 0, 1, 1, -10, 100);
2811         GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
2812         GL_Color(1, 1, 1, 1);
2813         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
2814         GL_BlendFunc(GL_ONE, GL_ZERO);
2815         GL_AlphaTest(false);
2816         GL_ScissorTest(false);
2817         GL_DepthMask(false);
2818         GL_DepthRange(0, 1);
2819         GL_DepthTest(false);
2820         R_Mesh_Matrix(&identitymatrix);
2821         R_Mesh_ResetTextureState();
2822         GL_PolygonOffset(0, 0);
2823         qglEnable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
2824         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
2825         qglDisable(GL_STENCIL_TEST);CHECKGLERROR
2826         qglStencilMask(~0);CHECKGLERROR
2827         qglStencilFunc(GL_ALWAYS, 128, ~0);CHECKGLERROR
2828         qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
2829         GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
2830         R_SetupGenericShader(true);
2831 }
2832
2833 void R_ResetViewRendering3D(void)
2834 {
2835         DrawQ_Finish();
2836
2837         // GL is weird because it's bottom to top, r_refdef.view.y is top to bottom
2838         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
2839         R_SetupView(true);
2840         GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
2841         GL_Color(1, 1, 1, 1);
2842         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
2843         GL_BlendFunc(GL_ONE, GL_ZERO);
2844         GL_AlphaTest(false);
2845         GL_ScissorTest(true);
2846         GL_DepthMask(true);
2847         GL_DepthRange(0, 1);
2848         GL_DepthTest(true);
2849         R_Mesh_Matrix(&identitymatrix);
2850         R_Mesh_ResetTextureState();
2851         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
2852         qglEnable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
2853         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
2854         qglDisable(GL_STENCIL_TEST);CHECKGLERROR
2855         qglStencilMask(~0);CHECKGLERROR
2856         qglStencilFunc(GL_ALWAYS, 128, ~0);CHECKGLERROR
2857         qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
2858         GL_CullFace(r_refdef.view.cullface_back);
2859         R_SetupGenericShader(true);
2860 }
2861
2862 void R_RenderScene(qboolean addwaterplanes);
2863
2864 static void R_Water_StartFrame(void)
2865 {
2866         int i;
2867         int waterwidth, waterheight, texturewidth, textureheight;
2868         r_waterstate_waterplane_t *p;
2869
2870         // set waterwidth and waterheight to the water resolution that will be
2871         // used (often less than the screen resolution for faster rendering)
2872         waterwidth = (int)bound(1, r_refdef.view.width * r_water_resolutionmultiplier.value, r_refdef.view.width);
2873         waterheight = (int)bound(1, r_refdef.view.height * r_water_resolutionmultiplier.value, r_refdef.view.height);
2874
2875         // calculate desired texture sizes
2876         // can't use water if the card does not support the texture size
2877         if (!r_water.integer || !r_glsl.integer || !gl_support_fragment_shader || waterwidth > gl_max_texture_size || waterheight > gl_max_texture_size)
2878                 texturewidth = textureheight = waterwidth = waterheight = 0;
2879         else if (gl_support_arb_texture_non_power_of_two)
2880         {
2881                 texturewidth = waterwidth;
2882                 textureheight = waterheight;
2883         }
2884         else
2885         {
2886                 for (texturewidth   = 1;texturewidth   < waterwidth ;texturewidth   *= 2);
2887                 for (textureheight  = 1;textureheight  < waterheight;textureheight  *= 2);
2888         }
2889
2890         // allocate textures as needed
2891         if (r_waterstate.waterwidth != waterwidth || r_waterstate.waterheight != waterheight || r_waterstate.texturewidth != texturewidth || r_waterstate.textureheight != textureheight)
2892         {
2893                 r_waterstate.maxwaterplanes = MAX_WATERPLANES;
2894                 for (i = 0, p = r_waterstate.waterplanes;i < r_waterstate.maxwaterplanes;i++, p++)
2895                 {
2896                         if (p->texture_refraction)
2897                                 R_FreeTexture(p->texture_refraction);
2898                         p->texture_refraction = NULL;
2899                         if (p->texture_reflection)
2900                                 R_FreeTexture(p->texture_reflection);
2901                         p->texture_reflection = NULL;
2902                 }
2903                 memset(&r_waterstate, 0, sizeof(r_waterstate));
2904                 r_waterstate.waterwidth = waterwidth;
2905                 r_waterstate.waterheight = waterheight;
2906                 r_waterstate.texturewidth = texturewidth;
2907                 r_waterstate.textureheight = textureheight;
2908         }
2909
2910         if (r_waterstate.waterwidth)
2911         {
2912                 r_waterstate.enabled = true;
2913
2914                 // set up variables that will be used in shader setup
2915                 r_waterstate.screenscale[0] = 0.5f * (float)waterwidth / (float)texturewidth;
2916                 r_waterstate.screenscale[1] = 0.5f * (float)waterheight / (float)textureheight;
2917                 r_waterstate.screencenter[0] = 0.5f * (float)waterwidth / (float)texturewidth;
2918                 r_waterstate.screencenter[1] = 0.5f * (float)waterheight / (float)textureheight;
2919         }
2920
2921         r_waterstate.maxwaterplanes = MAX_WATERPLANES;
2922         r_waterstate.numwaterplanes = 0;
2923 }
2924
2925 static void R_Water_AddWaterPlane(msurface_t *surface)
2926 {
2927         int triangleindex, planeindex;
2928         const int *e;
2929         vec3_t vert[3];
2930         vec3_t normal;
2931         vec3_t center;
2932         mplane_t plane;
2933         r_waterstate_waterplane_t *p;
2934         // just use the first triangle with a valid normal for any decisions
2935         VectorClear(normal);
2936         for (triangleindex = 0, e = rsurface.modelelement3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2937         {
2938                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[0]*3, vert[0]);
2939                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[1]*3, vert[1]);
2940                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[2]*3, vert[2]);
2941                 TriangleNormal(vert[0], vert[1], vert[2], normal);
2942                 if (VectorLength2(normal) >= 0.001)
2943                         break;
2944         }
2945
2946         VectorCopy(normal, plane.normal);
2947         VectorNormalize(plane.normal);
2948         plane.dist = DotProduct(vert[0], plane.normal);
2949         PlaneClassify(&plane);
2950         if (PlaneDiff(r_refdef.view.origin, &plane) < 0)
2951         {
2952                 // skip backfaces (except if nocullface is set)
2953                 if (!(surface->texture->currentframe->currentmaterialflags & MATERIALFLAG_NOCULLFACE))
2954                         return;
2955                 VectorNegate(plane.normal, plane.normal);
2956                 plane.dist *= -1;
2957                 PlaneClassify(&plane);
2958         }
2959
2960
2961         // find a matching plane if there is one
2962         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
2963                 if (fabs(PlaneDiff(vert[0], &p->plane)) < 1 && fabs(PlaneDiff(vert[1], &p->plane)) < 1 && fabs(PlaneDiff(vert[2], &p->plane)) < 1)
2964                         break;
2965         if (planeindex >= r_waterstate.maxwaterplanes)
2966                 return; // nothing we can do, out of planes
2967
2968         // if this triangle does not fit any known plane rendered this frame, add one
2969         if (planeindex >= r_waterstate.numwaterplanes)
2970         {
2971                 // store the new plane
2972                 r_waterstate.numwaterplanes++;
2973                 p->plane = plane;
2974                 // clear materialflags and pvs
2975                 p->materialflags = 0;
2976                 p->pvsvalid = false;
2977         }
2978         // merge this surface's materialflags into the waterplane
2979         p->materialflags |= surface->texture->currentframe->currentmaterialflags;
2980         // merge this surface's PVS into the waterplane
2981         VectorMAM(0.5f, surface->mins, 0.5f, surface->maxs, center);
2982         if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.FatPVS
2983          && r_refdef.scene.worldmodel->brush.PointInLeaf && r_refdef.scene.worldmodel->brush.PointInLeaf(r_refdef.scene.worldmodel, center)->clusterindex >= 0)
2984         {
2985                 r_refdef.scene.worldmodel->brush.FatPVS(r_refdef.scene.worldmodel, center, 2, p->pvsbits, sizeof(p->pvsbits), p->pvsvalid);
2986                 p->pvsvalid = true;
2987         }
2988 }
2989
2990 static void R_Water_ProcessPlanes(void)
2991 {
2992         r_refdef_view_t originalview;
2993         int planeindex;
2994         r_waterstate_waterplane_t *p;
2995
2996         originalview = r_refdef.view;
2997
2998         // make sure enough textures are allocated
2999         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
3000         {
3001                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
3002                 {
3003                         if (!p->texture_refraction)
3004                                 p->texture_refraction = R_LoadTexture2D(r_main_texturepool, va("waterplane%i_refraction", planeindex), r_waterstate.texturewidth, r_waterstate.textureheight, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
3005                         if (!p->texture_refraction)
3006                                 goto error;
3007                 }
3008
3009                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION))
3010                 {
3011                         if (!p->texture_reflection)
3012                                 p->texture_reflection = R_LoadTexture2D(r_main_texturepool, va("waterplane%i_reflection", planeindex), r_waterstate.texturewidth, r_waterstate.textureheight, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
3013                         if (!p->texture_reflection)
3014                                 goto error;
3015                 }
3016         }
3017
3018         // render views
3019         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
3020         {
3021                 r_refdef.view.showdebug = false;
3022                 r_refdef.view.width = r_waterstate.waterwidth;
3023                 r_refdef.view.height = r_waterstate.waterheight;
3024                 r_refdef.view.useclipplane = true;
3025                 r_waterstate.renderingscene = true;
3026
3027                 // render the normal view scene and copy into texture
3028                 // (except that a clipping plane should be used to hide everything on one side of the water, and the viewer's weapon model should be omitted)
3029                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
3030                 {
3031                         r_refdef.view.clipplane = p->plane;
3032                         VectorNegate(r_refdef.view.clipplane.normal, r_refdef.view.clipplane.normal);
3033                         r_refdef.view.clipplane.dist = -r_refdef.view.clipplane.dist;
3034                         PlaneClassify(&r_refdef.view.clipplane);
3035
3036                         R_RenderScene(false);
3037
3038                         // copy view into the screen texture
3039                         R_Mesh_TexBind(0, R_GetTexture(p->texture_refraction));
3040                         GL_ActiveTexture(0);
3041                         CHECKGLERROR
3042                         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
3043                 }
3044
3045                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION))
3046                 {
3047                         // render reflected scene and copy into texture
3048                         Matrix4x4_Reflect(&r_refdef.view.matrix, p->plane.normal[0], p->plane.normal[1], p->plane.normal[2], p->plane.dist, -2);
3049                         // update the r_refdef.view.origin because otherwise the sky renders at the wrong location (amongst other problems)
3050                         Matrix4x4_OriginFromMatrix(&r_refdef.view.matrix, r_refdef.view.origin);
3051                         r_refdef.view.clipplane = p->plane;
3052                         // reverse the cullface settings for this render
3053                         r_refdef.view.cullface_front = GL_FRONT;
3054                         r_refdef.view.cullface_back = GL_BACK;
3055                         if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.num_pvsclusterbytes)
3056                         {
3057                                 r_refdef.view.usecustompvs = true;
3058                                 if (p->pvsvalid)
3059                                         memcpy(r_refdef.viewcache.world_pvsbits, p->pvsbits, r_refdef.scene.worldmodel->brush.num_pvsclusterbytes);
3060                                 else
3061                                         memset(r_refdef.viewcache.world_pvsbits, 0xFF, r_refdef.scene.worldmodel->brush.num_pvsclusterbytes);
3062                         }
3063
3064                         R_ResetViewRendering3D();
3065                         R_ClearScreen(r_refdef.fogenabled);
3066                         if (r_timereport_active)
3067                                 R_TimeReport("viewclear");
3068
3069                         R_RenderScene(false);
3070
3071                         R_Mesh_TexBind(0, R_GetTexture(p->texture_reflection));
3072                         GL_ActiveTexture(0);
3073                         CHECKGLERROR
3074                         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
3075
3076                         R_ResetViewRendering3D();
3077                         R_ClearScreen(r_refdef.fogenabled);
3078                         if (r_timereport_active)
3079                                 R_TimeReport("viewclear");
3080                 }
3081
3082                 r_refdef.view = originalview;
3083                 r_refdef.view.clear = true;
3084                 r_waterstate.renderingscene = false;
3085         }
3086         return;
3087 error:
3088         r_refdef.view = originalview;
3089         r_waterstate.renderingscene = false;
3090         Cvar_SetValueQuick(&r_water, 0);
3091         Con_Printf("R_Water_ProcessPlanes: Error: texture creation failed!  Turned off r_water.\n");
3092         return;
3093 }
3094
3095 void R_Bloom_StartFrame(void)
3096 {
3097         int bloomtexturewidth, bloomtextureheight, screentexturewidth, screentextureheight;
3098
3099         // set bloomwidth and bloomheight to the bloom resolution that will be
3100         // used (often less than the screen resolution for faster rendering)
3101         r_bloomstate.bloomwidth = bound(1, r_bloom_resolution.integer, r_refdef.view.width);
3102         r_bloomstate.bloomheight = r_bloomstate.bloomwidth * r_refdef.view.height / r_refdef.view.width;
3103         r_bloomstate.bloomheight = bound(1, r_bloomstate.bloomheight, r_refdef.view.height);
3104         r_bloomstate.bloomwidth = min(r_bloomstate.bloomwidth, gl_max_texture_size);
3105         r_bloomstate.bloomheight = min(r_bloomstate.bloomheight, gl_max_texture_size);
3106
3107         // calculate desired texture sizes
3108         if (gl_support_arb_texture_non_power_of_two)
3109         {
3110                 screentexturewidth = r_refdef.view.width;
3111                 screentextureheight = r_refdef.view.height;
3112                 bloomtexturewidth = r_bloomstate.bloomwidth;
3113                 bloomtextureheight = r_bloomstate.bloomheight;
3114         }
3115         else
3116         {
3117                 for (screentexturewidth  = 1;screentexturewidth  < vid.width               ;screentexturewidth  *= 2);
3118                 for (screentextureheight = 1;screentextureheight < vid.height              ;screentextureheight *= 2);
3119                 for (bloomtexturewidth   = 1;bloomtexturewidth   < r_bloomstate.bloomwidth ;bloomtexturewidth   *= 2);
3120                 for (bloomtextureheight  = 1;bloomtextureheight  < r_bloomstate.bloomheight;bloomtextureheight  *= 2);
3121         }
3122
3123         if ((r_hdr.integer || r_bloom.integer) && ((r_bloom_resolution.integer < 4 || r_bloom_blur.value < 1 || r_bloom_blur.value >= 512) || r_refdef.view.width > gl_max_texture_size || r_refdef.view.height > gl_max_texture_size))
3124         {
3125                 Cvar_SetValueQuick(&r_hdr, 0);
3126                 Cvar_SetValueQuick(&r_bloom, 0);
3127         }
3128
3129         if (!(r_glsl.integer && (r_glsl_postprocess.integer || (v_glslgamma.integer && !vid_gammatables_trivial) || r_bloom.integer || r_hdr.integer)) && !r_bloom.integer)
3130                 screentexturewidth = screentextureheight = 0;
3131         if (!r_hdr.integer && !r_bloom.integer)
3132                 bloomtexturewidth = bloomtextureheight = 0;
3133
3134         // allocate textures as needed
3135         if (r_bloomstate.screentexturewidth != screentexturewidth || r_bloomstate.screentextureheight != screentextureheight)
3136         {
3137                 if (r_bloomstate.texture_screen)
3138                         R_FreeTexture(r_bloomstate.texture_screen);
3139                 r_bloomstate.texture_screen = NULL;
3140                 r_bloomstate.screentexturewidth = screentexturewidth;
3141                 r_bloomstate.screentextureheight = screentextureheight;
3142                 if (r_bloomstate.screentexturewidth && r_bloomstate.screentextureheight)
3143                         r_bloomstate.texture_screen = R_LoadTexture2D(r_main_texturepool, "screen", r_bloomstate.screentexturewidth, r_bloomstate.screentextureheight, NULL, TEXTYPE_BGRA, TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
3144         }
3145         if (r_bloomstate.bloomtexturewidth != bloomtexturewidth || r_bloomstate.bloomtextureheight != bloomtextureheight)
3146         {
3147                 if (r_bloomstate.texture_bloom)
3148                         R_FreeTexture(r_bloomstate.texture_bloom);
3149                 r_bloomstate.texture_bloom = NULL;
3150                 r_bloomstate.bloomtexturewidth = bloomtexturewidth;
3151                 r_bloomstate.bloomtextureheight = bloomtextureheight;
3152                 if (r_bloomstate.bloomtexturewidth && r_bloomstate.bloomtextureheight)
3153                         r_bloomstate.texture_bloom = R_LoadTexture2D(r_main_texturepool, "bloom", r_bloomstate.bloomtexturewidth, r_bloomstate.bloomtextureheight, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
3154         }
3155
3156         // set up a texcoord array for the full resolution screen image
3157         // (we have to keep this around to copy back during final render)
3158         r_bloomstate.screentexcoord2f[0] = 0;
3159         r_bloomstate.screentexcoord2f[1] = (float)r_refdef.view.height    / (float)r_bloomstate.screentextureheight;
3160         r_bloomstate.screentexcoord2f[2] = (float)r_refdef.view.width     / (float)r_bloomstate.screentexturewidth;
3161         r_bloomstate.screentexcoord2f[3] = (float)r_refdef.view.height    / (float)r_bloomstate.screentextureheight;
3162         r_bloomstate.screentexcoord2f[4] = (float)r_refdef.view.width     / (float)r_bloomstate.screentexturewidth;
3163         r_bloomstate.screentexcoord2f[5] = 0;
3164         r_bloomstate.screentexcoord2f[6] = 0;
3165         r_bloomstate.screentexcoord2f[7] = 0;
3166
3167         // set up a texcoord array for the reduced resolution bloom image
3168         // (which will be additive blended over the screen image)
3169         r_bloomstate.bloomtexcoord2f[0] = 0;
3170         r_bloomstate.bloomtexcoord2f[1] = (float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3171         r_bloomstate.bloomtexcoord2f[2] = (float)r_bloomstate.bloomwidth  / (float)r_bloomstate.bloomtexturewidth;
3172         r_bloomstate.bloomtexcoord2f[3] = (float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3173         r_bloomstate.bloomtexcoord2f[4] = (float)r_bloomstate.bloomwidth  / (float)r_bloomstate.bloomtexturewidth;
3174         r_bloomstate.bloomtexcoord2f[5] = 0;
3175         r_bloomstate.bloomtexcoord2f[6] = 0;
3176         r_bloomstate.bloomtexcoord2f[7] = 0;
3177
3178         if (r_hdr.integer || r_bloom.integer)
3179         {
3180                 r_bloomstate.enabled = true;
3181                 r_bloomstate.hdr = r_hdr.integer != 0;
3182         }
3183 }
3184
3185 void R_Bloom_CopyBloomTexture(float colorscale)
3186 {
3187         r_refdef.stats.bloom++;
3188
3189         // scale down screen texture to the bloom texture size
3190         CHECKGLERROR
3191         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3192         GL_BlendFunc(GL_ONE, GL_ZERO);
3193         GL_Color(colorscale, colorscale, colorscale, 1);
3194         // TODO: optimize with multitexture or GLSL
3195         R_SetupGenericShader(true);
3196         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.screentexcoord2f, 0, 0);
3197         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_screen));
3198         R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3199         r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3200
3201         // we now have a bloom image in the framebuffer
3202         // copy it into the bloom image texture for later processing
3203         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3204         GL_ActiveTexture(0);
3205         CHECKGLERROR
3206         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3207         r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3208 }
3209
3210 void R_Bloom_CopyHDRTexture(void)
3211 {
3212         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3213         GL_ActiveTexture(0);
3214         CHECKGLERROR
3215         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
3216         r_refdef.stats.bloom_copypixels += r_refdef.view.width * r_refdef.view.height;
3217 }
3218
3219 void R_Bloom_MakeTexture(void)
3220 {
3221         int x, range, dir;
3222         float xoffset, yoffset, r, brighten;
3223
3224         r_refdef.stats.bloom++;
3225
3226         R_ResetViewRendering2D();
3227         R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3228         R_Mesh_ColorPointer(NULL, 0, 0);
3229         R_SetupGenericShader(true);
3230
3231         // we have a bloom image in the framebuffer
3232         CHECKGLERROR
3233         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3234
3235         for (x = 1;x < min(r_bloom_colorexponent.value, 32);)
3236         {
3237                 x *= 2;
3238                 r = bound(0, r_bloom_colorexponent.value / x, 1);
3239                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
3240                 GL_Color(r, r, r, 1);
3241                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3242                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3243                 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3244                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3245
3246                 // copy the vertically blurred bloom view to a texture
3247                 GL_ActiveTexture(0);
3248                 CHECKGLERROR
3249                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3250                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3251         }
3252
3253         range = r_bloom_blur.integer * r_bloomstate.bloomwidth / 320;
3254         brighten = r_bloom_brighten.value;
3255         if (r_hdr.integer)
3256                 brighten *= r_hdr_range.value;
3257         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3258         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.offsettexcoord2f, 0, 0);
3259
3260         for (dir = 0;dir < 2;dir++)
3261         {
3262                 // blend on at multiple vertical offsets to achieve a vertical blur
3263                 // TODO: do offset blends using GLSL
3264                 GL_BlendFunc(GL_ONE, GL_ZERO);
3265                 for (x = -range;x <= range;x++)
3266                 {
3267                         if (!dir){xoffset = 0;yoffset = x;}
3268                         else {xoffset = x;yoffset = 0;}
3269                         xoffset /= (float)r_bloomstate.bloomtexturewidth;
3270                         yoffset /= (float)r_bloomstate.bloomtextureheight;
3271                         // compute a texcoord array with the specified x and y offset
3272                         r_bloomstate.offsettexcoord2f[0] = xoffset+0;
3273                         r_bloomstate.offsettexcoord2f[1] = yoffset+(float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3274                         r_bloomstate.offsettexcoord2f[2] = xoffset+(float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
3275                         r_bloomstate.offsettexcoord2f[3] = yoffset+(float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3276                         r_bloomstate.offsettexcoord2f[4] = xoffset+(float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
3277                         r_bloomstate.offsettexcoord2f[5] = yoffset+0;
3278                         r_bloomstate.offsettexcoord2f[6] = xoffset+0;
3279                         r_bloomstate.offsettexcoord2f[7] = yoffset+0;
3280                         // this r value looks like a 'dot' particle, fading sharply to
3281                         // black at the edges
3282                         // (probably not realistic but looks good enough)
3283                         //r = ((range*range+1)/((float)(x*x+1)))/(range*2+1);
3284                         //r = (dir ? 1.0f : brighten)/(range*2+1);
3285                         r = (dir ? 1.0f : brighten)/(range*2+1)*(1 - x*x/(float)(range*range));
3286                         GL_Color(r, r, r, 1);
3287                         R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3288                         r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3289                         GL_BlendFunc(GL_ONE, GL_ONE);
3290                 }
3291
3292                 // copy the vertically blurred bloom view to a texture
3293                 GL_ActiveTexture(0);
3294                 CHECKGLERROR
3295                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3296                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3297         }
3298
3299         // apply subtract last
3300         // (just like it would be in a GLSL shader)
3301         if (r_bloom_colorsubtract.value > 0 && gl_support_ext_blend_subtract)
3302         {
3303                 GL_BlendFunc(GL_ONE, GL_ZERO);
3304                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3305                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3306                 GL_Color(1, 1, 1, 1);
3307                 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3308                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3309
3310                 GL_BlendFunc(GL_ONE, GL_ONE);
3311                 qglBlendEquationEXT(GL_FUNC_REVERSE_SUBTRACT_EXT);
3312                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
3313                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3314                 GL_Color(r_bloom_colorsubtract.value, r_bloom_colorsubtract.value, r_bloom_colorsubtract.value, 1);
3315                 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3316                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3317                 qglBlendEquationEXT(GL_FUNC_ADD_EXT);
3318
3319                 // copy the darkened bloom view to a texture
3320                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3321                 GL_ActiveTexture(0);
3322                 CHECKGLERROR
3323                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3324                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3325         }
3326 }
3327
3328 void R_HDR_RenderBloomTexture(void)
3329 {
3330         int oldwidth, oldheight;
3331         float oldcolorscale;
3332
3333         oldcolorscale = r_refdef.view.colorscale;
3334         oldwidth = r_refdef.view.width;
3335         oldheight = r_refdef.view.height;
3336         r_refdef.view.width = r_bloomstate.bloomwidth;
3337         r_refdef.view.height = r_bloomstate.bloomheight;
3338
3339         // TODO: support GL_EXT_framebuffer_object rather than reusing the framebuffer?  it might improve SLI performance.
3340         // TODO: add exposure compensation features
3341         // TODO: add fp16 framebuffer support
3342
3343         r_refdef.view.showdebug = false;
3344         r_refdef.view.colorscale *= r_bloom_colorscale.value / bound(1, r_hdr_range.value, 16);
3345
3346         R_ClearScreen(r_refdef.fogenabled);
3347         if (r_timereport_active)
3348                 R_TimeReport("HDRclear");
3349
3350         r_waterstate.numwaterplanes = 0;
3351         R_RenderScene(r_waterstate.enabled);
3352         r_refdef.view.showdebug = true;
3353
3354         R_ResetViewRendering2D();
3355
3356         R_Bloom_CopyHDRTexture();
3357         R_Bloom_MakeTexture();
3358
3359         // restore the view settings
3360         r_refdef.view.width = oldwidth;
3361         r_refdef.view.height = oldheight;
3362         r_refdef.view.colorscale = oldcolorscale;
3363
3364         R_ResetViewRendering3D();
3365
3366         R_ClearScreen(r_refdef.fogenabled);
3367         if (r_timereport_active)
3368                 R_TimeReport("viewclear");
3369 }
3370
3371 static void R_BlendView(void)
3372 {
3373         if (r_bloomstate.texture_screen)
3374         {
3375                 // copy view into the screen texture
3376                 R_ResetViewRendering2D();
3377                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3378                 R_Mesh_ColorPointer(NULL, 0, 0);
3379                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_screen));
3380                 GL_ActiveTexture(0);CHECKGLERROR
3381                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
3382                 r_refdef.stats.bloom_copypixels += r_refdef.view.width * r_refdef.view.height;
3383         }
3384
3385         if (r_glsl.integer && gl_support_fragment_shader && (r_bloomstate.texture_screen || r_bloomstate.texture_bloom))
3386         {
3387                 unsigned int permutation =
3388                           (r_bloomstate.texture_bloom ? SHADERPERMUTATION_GLOW : 0)
3389                         | (r_refdef.viewblend[3] > 0 ? SHADERPERMUTATION_VERTEXTEXTUREBLEND : 0)
3390                         | ((v_glslgamma.value && !vid_gammatables_trivial) ? SHADERPERMUTATION_GAMMARAMPS : 0)
3391                         | (r_glsl_postprocess.integer ? SHADERPERMUTATION_POSTPROCESSING : 0);
3392
3393                 if (r_bloomstate.texture_bloom && !r_bloomstate.hdr)
3394                 {
3395                         // render simple bloom effect
3396                         // copy the screen and shrink it and darken it for the bloom process
3397                         R_Bloom_CopyBloomTexture(r_bloom_colorscale.value);
3398                         // make the bloom texture
3399                         R_Bloom_MakeTexture();
3400                 }
3401
3402                 R_ResetViewRendering2D();
3403                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3404                 R_Mesh_ColorPointer(NULL, 0, 0);
3405                 GL_Color(1, 1, 1, 1);
3406                 GL_BlendFunc(GL_ONE, GL_ZERO);
3407                 R_SetupShader_SetPermutation(SHADERMODE_POSTPROCESS, permutation);
3408                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_screen));
3409                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.screentexcoord2f, 0, 0);
3410                 R_Mesh_TexBind(1, R_GetTexture(r_bloomstate.texture_bloom));
3411                 R_Mesh_TexCoordPointer(1, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3412                 if (r_glsl_permutation->loc_Texture_GammaRamps >= 0)
3413                         R_Mesh_TexBind(GL20TU_GAMMARAMPS, R_GetTexture(r_texture_gammaramps));
3414                 if (r_glsl_permutation->loc_TintColor >= 0)
3415                         qglUniform4fARB(r_glsl_permutation->loc_TintColor, r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]);
3416                 if (r_glsl_permutation->loc_ClientTime >= 0)
3417                         qglUniform1fARB(r_glsl_permutation->loc_ClientTime, cl.time);
3418                 if (r_glsl_permutation->loc_PixelSize >= 0)
3419                         qglUniform2fARB(r_glsl_permutation->loc_PixelSize, 1.0/r_bloomstate.screentexturewidth, 1.0/r_bloomstate.screentextureheight);
3420                 if (r_glsl_permutation->loc_UserVec1 >= 0)
3421                 {
3422                         float a=0, b=0, c=0, d=0;
3423                         sscanf(r_glsl_postprocess_uservec1.string, "%f %f %f %f", &a, &b, &c, &d);
3424                         qglUniform4fARB(r_glsl_permutation->loc_UserVec1, a, b, c, d);
3425                 }
3426                 if (r_glsl_permutation->loc_UserVec2 >= 0)
3427                 {
3428                         float a=0, b=0, c=0, d=0;
3429                         sscanf(r_glsl_postprocess_uservec2.string, "%f %f %f %f", &a, &b, &c, &d);
3430                         qglUniform4fARB(r_glsl_permutation->loc_UserVec2, a, b, c, d);
3431                 }
3432                 if (r_glsl_permutation->loc_UserVec3 >= 0)
3433                 {
3434                         float a=0, b=0, c=0, d=0;
3435                         sscanf(r_glsl_postprocess_uservec3.string, "%f %f %f %f", &a, &b, &c, &d);
3436                         qglUniform4fARB(r_glsl_permutation->loc_UserVec3, a, b, c, d);
3437                 }
3438                 if (r_glsl_permutation->loc_UserVec4 >= 0)
3439                 {
3440                         float a=0, b=0, c=0, d=0;
3441                         sscanf(r_glsl_postprocess_uservec4.string, "%f %f %f %f", &a, &b, &c, &d);
3442                         qglUniform4fARB(r_glsl_permutation->loc_UserVec4, a, b, c, d);
3443                 }
3444                 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3445                 r_refdef.stats.bloom_drawpixels += r_refdef.view.width * r_refdef.view.height;
3446                 return;
3447         }
3448
3449
3450
3451         if (r_bloomstate.texture_bloom && r_bloomstate.hdr)
3452         {
3453                 // render high dynamic range bloom effect
3454                 // the bloom texture was made earlier this render, so we just need to
3455                 // blend it onto the screen...
3456                 R_ResetViewRendering2D();
3457                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3458                 R_Mesh_ColorPointer(NULL, 0, 0);
3459                 R_SetupGenericShader(true);
3460                 GL_Color(1, 1, 1, 1);
3461                 GL_BlendFunc(GL_ONE, GL_ONE);
3462                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3463                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3464                 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3465                 r_refdef.stats.bloom_drawpixels += r_refdef.view.width * r_refdef.view.height;
3466         }
3467         else if (r_bloomstate.texture_bloom)
3468         {
3469                 // render simple bloom effect
3470                 // copy the screen and shrink it and darken it for the bloom process
3471                 R_Bloom_CopyBloomTexture(r_bloom_colorscale.value);
3472                 // make the bloom texture
3473                 R_Bloom_MakeTexture();
3474                 // put the original screen image back in place and blend the bloom
3475                 // texture on it
3476                 R_ResetViewRendering2D();
3477                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3478                 R_Mesh_ColorPointer(NULL, 0, 0);
3479                 GL_Color(1, 1, 1, 1);
3480                 GL_BlendFunc(GL_ONE, GL_ZERO);
3481                 // do both in one pass if possible
3482                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3483                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3484                 if (r_textureunits.integer >= 2 && gl_combine.integer)
3485                 {
3486                         R_SetupGenericTwoTextureShader(GL_ADD);
3487                         R_Mesh_TexBind(1, R_GetTexture(r_bloomstate.texture_screen));
3488                         R_Mesh_TexCoordPointer(1, 2, r_bloomstate.screentexcoord2f, 0, 0);
3489                 }
3490                 else
3491                 {
3492                         R_SetupGenericShader(true);
3493                         R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3494                         r_refdef.stats.bloom_drawpixels += r_refdef.view.width * r_refdef.view.height;
3495                         // now blend on the bloom texture
3496                         GL_BlendFunc(GL_ONE, GL_ONE);
3497                         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_screen));
3498                         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.screentexcoord2f, 0, 0);
3499                 }
3500                 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3501                 r_refdef.stats.bloom_drawpixels += r_refdef.view.width * r_refdef.view.height;
3502         }
3503         if (r_refdef.viewblend[3] >= (1.0f / 256.0f))
3504         {
3505                 // apply a color tint to the whole view
3506                 R_ResetViewRendering2D();
3507                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3508                 R_Mesh_ColorPointer(NULL, 0, 0);
3509                 R_SetupGenericShader(false);
3510                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3511                 GL_Color(r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]);
3512                 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3513         }
3514 }
3515
3516 void R_RenderScene(qboolean addwaterplanes);
3517
3518 matrix4x4_t r_waterscrollmatrix;
3519
3520 void R_UpdateFogColor(void) // needs to be called before HDR subrender too, as that changes colorscale!
3521 {
3522         if (r_refdef.fog_density)
3523         {
3524                 r_refdef.fogcolor[0] = r_refdef.fog_red;
3525                 r_refdef.fogcolor[1] = r_refdef.fog_green;
3526                 r_refdef.fogcolor[2] = r_refdef.fog_blue;
3527
3528                 {
3529                         vec3_t fogvec;
3530                         VectorCopy(r_refdef.fogcolor, fogvec);
3531                         if(r_glsl.integer && (r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)) // need to support contrast boost
3532                         {
3533                                 //   color.rgb /= ((ContrastBoost - 1) * color.rgb + 1);
3534                                 fogvec[0] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[0] + 1);
3535                                 fogvec[1] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[1] + 1);
3536                                 fogvec[2] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[2] + 1);
3537                         }
3538                         //   color.rgb *= ContrastBoost * SceneBrightness;
3539                         VectorScale(fogvec, r_refdef.view.colorscale, fogvec);
3540                         r_refdef.fogcolor[0] = bound(0.0f, fogvec[0], 1.0f);
3541                         r_refdef.fogcolor[1] = bound(0.0f, fogvec[1], 1.0f);
3542                         r_refdef.fogcolor[2] = bound(0.0f, fogvec[2], 1.0f);
3543                 }
3544         }
3545 }
3546
3547 void R_UpdateVariables(void)
3548 {
3549         R_Textures_Frame();
3550
3551         r_refdef.scene.ambient = r_ambient.value;
3552
3553         r_refdef.farclip = 4096;
3554         if (r_refdef.scene.worldmodel)
3555                 r_refdef.farclip += r_refdef.scene.worldmodel->radius * 2;
3556         r_refdef.nearclip = bound (0.001f, r_nearclip.value, r_refdef.farclip - 1.0f);
3557
3558         if (r_shadow_frontsidecasting.integer < 0 || r_shadow_frontsidecasting.integer > 1)
3559                 Cvar_SetValueQuick(&r_shadow_frontsidecasting, 1);
3560         r_refdef.polygonfactor = 0;
3561         r_refdef.polygonoffset = 0;
3562         r_refdef.shadowpolygonfactor = r_refdef.polygonfactor + r_shadow_polygonfactor.value * (r_shadow_frontsidecasting.integer ? 1 : -1);
3563         r_refdef.shadowpolygonoffset = r_refdef.polygonoffset + r_shadow_polygonoffset.value * (r_shadow_frontsidecasting.integer ? 1 : -1);
3564
3565         r_refdef.scene.rtworld = r_shadow_realtime_world.integer;
3566         r_refdef.scene.rtworldshadows = r_shadow_realtime_world_shadows.integer && gl_stencil;
3567         r_refdef.scene.rtdlight = (r_shadow_realtime_world.integer || r_shadow_realtime_dlight.integer) && !gl_flashblend.integer && r_dynamic.integer;
3568         r_refdef.scene.rtdlightshadows = r_refdef.scene.rtdlight && r_shadow_realtime_dlight_shadows.integer && gl_stencil;
3569         r_refdef.lightmapintensity = r_refdef.scene.rtworld ? r_shadow_realtime_world_lightmaps.value : 1;
3570         if (r_showsurfaces.integer)
3571         {
3572                 r_refdef.scene.rtworld = false;
3573                 r_refdef.scene.rtworldshadows = false;
3574                 r_refdef.scene.rtdlight = false;
3575                 r_refdef.scene.rtdlightshadows = false;
3576                 r_refdef.lightmapintensity = 0;
3577         }
3578
3579         if (gamemode == GAME_NEHAHRA)
3580         {
3581                 if (gl_fogenable.integer)
3582                 {
3583                         r_refdef.oldgl_fogenable = true;
3584                         r_refdef.fog_density = gl_fogdensity.value;
3585                         r_refdef.fog_red = gl_fogred.value;
3586                         r_refdef.fog_green = gl_foggreen.value;
3587                         r_refdef.fog_blue = gl_fogblue.value;
3588                         r_refdef.fog_alpha = 1;
3589                         r_refdef.fog_start = 0;
3590                         r_refdef.fog_end = gl_skyclip.value;
3591                 }
3592                 else if (r_refdef.oldgl_fogenable)
3593                 {
3594                         r_refdef.oldgl_fogenable = false;
3595                         r_refdef.fog_density = 0;
3596                         r_refdef.fog_red = 0;
3597                         r_refdef.fog_green = 0;
3598                         r_refdef.fog_blue = 0;
3599                         r_refdef.fog_alpha = 0;
3600                         r_refdef.fog_start = 0;
3601                         r_refdef.fog_end = 0;
3602                 }
3603         }
3604
3605         r_refdef.fog_alpha = bound(0, r_refdef.fog_alpha, 1);
3606         r_refdef.fog_start = max(0, r_refdef.fog_start);
3607         r_refdef.fog_end = max(r_refdef.fog_start + 0.01, r_refdef.fog_end);
3608
3609         // R_UpdateFogColor(); // why? R_RenderScene does it anyway
3610
3611         if (r_refdef.fog_density && r_drawfog.integer)
3612         {
3613                 r_refdef.fogenabled = true;
3614                 // this is the point where the fog reaches 0.9986 alpha, which we
3615                 // consider a good enough cutoff point for the texture
3616                 // (0.9986 * 256 == 255.6)
3617                 if (r_fog_exp2.integer)
3618                         r_refdef.fogrange = 32 / (r_refdef.fog_density * r_refdef.fog_density) + r_refdef.fog_start;
3619                 else
3620                         r_refdef.fogrange = 2048 / r_refdef.fog_density + r_refdef.fog_start;
3621                 r_refdef.fogrange = bound(r_refdef.fog_start, r_refdef.fogrange, r_refdef.fog_end);
3622                 r_refdef.fograngerecip = 1.0f / r_refdef.fogrange;
3623                 r_refdef.fogmasktabledistmultiplier = FOGMASKTABLEWIDTH * r_refdef.fograngerecip;
3624                 // fog color was already set
3625                 // update the fog texture
3626                 if (r_refdef.fogmasktable_start != r_refdef.fog_start || r_refdef.fogmasktable_alpha != r_refdef.fog_alpha || r_refdef.fogmasktable_density != r_refdef.fog_density || r_refdef.fogmasktable_range != r_refdef.fogrange)
3627                         R_BuildFogTexture();
3628         }
3629         else
3630                 r_refdef.fogenabled = false;
3631
3632         if(r_glsl.integer && v_glslgamma.integer && !vid_gammatables_trivial)
3633         {
3634                 if(!r_texture_gammaramps || vid_gammatables_serial != r_texture_gammaramps_serial)
3635                 {
3636                         // build GLSL gamma texture
3637 #define RAMPWIDTH 256
3638                         unsigned short ramp[RAMPWIDTH * 3];
3639                         unsigned char ramprgb[RAMPWIDTH][4];
3640                         int i;
3641
3642                         r_texture_gammaramps_serial = vid_gammatables_serial;
3643
3644                         VID_BuildGammaTables(&ramp[0], RAMPWIDTH);
3645                         for(i = 0; i < RAMPWIDTH; ++i)
3646                         {
3647                                 ramprgb[i][0] = ramp[i] >> 8;
3648                                 ramprgb[i][1] = ramp[i + RAMPWIDTH] >> 8;
3649                                 ramprgb[i][2] = ramp[i + 2 * RAMPWIDTH] >> 8;
3650                                 ramprgb[i][3] = 0;
3651                         }
3652                         if (r_texture_gammaramps)
3653                         {
3654                                 R_UpdateTexture(r_texture_gammaramps, &ramprgb[0][0], 0, 0, RAMPWIDTH, 1);
3655                         }
3656                         else
3657                         {
3658                                 r_texture_gammaramps = R_LoadTexture2D(r_main_texturepool, "gammaramps", RAMPWIDTH, 1, &ramprgb[0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_FORCELINEAR | TEXF_CLAMP | TEXF_PERSISTENT, NULL);
3659                         }
3660                 }
3661         }
3662         else
3663         {
3664                 // remove GLSL gamma texture
3665         }
3666 }
3667
3668 static r_refdef_scene_type_t r_currentscenetype = RST_CLIENT;
3669 static r_refdef_scene_t r_scenes_store[ RST_COUNT ];
3670 /*
3671 ================
3672 R_SelectScene
3673 ================
3674 */
3675 void R_SelectScene( r_refdef_scene_type_t scenetype ) {
3676         if( scenetype != r_currentscenetype ) {
3677                 // store the old scenetype
3678                 r_scenes_store[ r_currentscenetype ] = r_refdef.scene;
3679                 r_currentscenetype = scenetype;
3680                 // move in the new scene
3681                 r_refdef.scene = r_scenes_store[ r_currentscenetype ];
3682         }
3683 }
3684
3685 /*
3686 ================
3687 R_GetScenePointer
3688 ================
3689 */
3690 r_refdef_scene_t * R_GetScenePointer( r_refdef_scene_type_t scenetype )
3691 {
3692         // of course, we could also add a qboolean that provides a lock state and a ReleaseScenePointer function..
3693         if( scenetype == r_currentscenetype ) {
3694                 return &r_refdef.scene;
3695         } else {
3696                 return &r_scenes_store[ scenetype ];
3697         }
3698 }
3699
3700 /*
3701 ================
3702 R_RenderView
3703 ================
3704 */
3705 void R_RenderView(void)
3706 {
3707         if (r_refdef.view.isoverlay)
3708         {
3709                 // TODO: FIXME: move this into its own backend function maybe? [2/5/2008 Andreas]
3710                 GL_Clear( GL_DEPTH_BUFFER_BIT );
3711                 R_TimeReport("depthclear");
3712
3713                 r_refdef.view.showdebug = false;
3714
3715                 r_waterstate.enabled = false;
3716                 r_waterstate.numwaterplanes = 0;
3717
3718                 R_RenderScene(false);
3719
3720                 CHECKGLERROR
3721                 return;
3722         }
3723
3724         if (!r_refdef.scene.entities || r_refdef.view.width * r_refdef.view.height == 0/* || !r_refdef.scene.worldmodel*/)
3725                 return; //Host_Error ("R_RenderView: NULL worldmodel");
3726
3727         r_refdef.view.colorscale = r_hdr_scenebrightness.value;
3728
3729         // break apart the view matrix into vectors for various purposes
3730         // it is important that this occurs outside the RenderScene function because that can be called from reflection renders, where the vectors come out wrong
3731         // however the r_refdef.view.origin IS updated in RenderScene intentionally - otherwise the sky renders at the wrong origin, etc
3732         Matrix4x4_ToVectors(&r_refdef.view.matrix, r_refdef.view.forward, r_refdef.view.left, r_refdef.view.up, r_refdef.view.origin);
3733         VectorNegate(r_refdef.view.left, r_refdef.view.right);
3734         // make an inverted copy of the view matrix for tracking sprites
3735         Matrix4x4_Invert_Simple(&r_refdef.view.inverse_matrix, &r_refdef.view.matrix);
3736
3737         R_Shadow_UpdateWorldLightSelection();
3738
3739         R_Bloom_StartFrame();
3740         R_Water_StartFrame();
3741
3742         CHECKGLERROR
3743         if (r_timereport_active)
3744                 R_TimeReport("viewsetup");
3745
3746         R_ResetViewRendering3D();
3747
3748         if (r_refdef.view.clear || r_refdef.fogenabled)
3749         {
3750                 R_ClearScreen(r_refdef.fogenabled);
3751                 if (r_timereport_active)
3752                         R_TimeReport("viewclear");
3753         }
3754         r_refdef.view.clear = true;
3755
3756         r_refdef.view.showdebug = true;
3757
3758         // this produces a bloom texture to be used in R_BlendView() later
3759         if (r_hdr.integer)
3760                 R_HDR_RenderBloomTexture();
3761
3762         r_waterstate.numwaterplanes = 0;
3763         R_RenderScene(r_waterstate.enabled);
3764
3765         R_BlendView();
3766         if (r_timereport_active)
3767                 R_TimeReport("blendview");
3768
3769         GL_Scissor(0, 0, vid.width, vid.height);
3770         GL_ScissorTest(false);
3771         CHECKGLERROR
3772 }
3773
3774 extern void R_DrawLightningBeams (void);
3775 extern void VM_CL_AddPolygonsToMeshQueue (void);
3776 extern void R_DrawPortals (void);
3777 extern cvar_t cl_locs_show;
3778 static void R_DrawLocs(void);
3779 static void R_DrawEntityBBoxes(void);
3780 void R_RenderScene(qboolean addwaterplanes)
3781 {
3782         r_refdef.stats.renders++;
3783
3784         R_UpdateFogColor();
3785
3786         if (addwaterplanes)
3787         {
3788                 R_ResetViewRendering3D();
3789
3790                 R_View_Update();
3791                 if (r_timereport_active)
3792                         R_TimeReport("watervis");
3793
3794                 if (cl.csqc_vidvars.drawworld && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawAddWaterPlanes)
3795                 {
3796                         r_refdef.scene.worldmodel->DrawAddWaterPlanes(r_refdef.scene.worldentity);
3797                         if (r_timereport_active)
3798                                 R_TimeReport("waterworld");
3799                 }
3800
3801                 // don't let sound skip if going slow
3802                 if (r_refdef.scene.extraupdate)
3803                         S_ExtraUpdate ();
3804
3805                 R_DrawModelsAddWaterPlanes();
3806                 if (r_timereport_active)
3807                         R_TimeReport("watermodels");
3808
3809                 R_Water_ProcessPlanes();
3810                 if (r_timereport_active)
3811                         R_TimeReport("waterscenes");
3812         }
3813
3814         R_ResetViewRendering3D();
3815
3816         // don't let sound skip if going slow
3817         if (r_refdef.scene.extraupdate)
3818                 S_ExtraUpdate ();
3819
3820         R_MeshQueue_BeginScene();
3821
3822         R_SkyStartFrame();
3823
3824         R_View_Update();
3825         if (r_timereport_active)
3826                 R_TimeReport("visibility");
3827
3828         Matrix4x4_CreateTranslate(&r_waterscrollmatrix, sin(r_refdef.scene.time) * 0.025 * r_waterscroll.value, sin(r_refdef.scene.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
3829
3830         if (cl.csqc_vidvars.drawworld)
3831         {
3832                 // don't let sound skip if going slow
3833                 if (r_refdef.scene.extraupdate)
3834                         S_ExtraUpdate ();
3835
3836                 if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawSky)
3837                 {
3838                         r_refdef.scene.worldmodel->DrawSky(r_refdef.scene.worldentity);
3839                         if (r_timereport_active)
3840                                 R_TimeReport("worldsky");
3841                 }
3842
3843                 if (R_DrawBrushModelsSky() && r_timereport_active)
3844                         R_TimeReport("bmodelsky");
3845         }
3846
3847         if (r_depthfirst.integer >= 1 && cl.csqc_vidvars.drawworld && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawDepth)
3848         {
3849                 r_refdef.scene.worldmodel->DrawDepth(r_refdef.scene.worldentity);
3850                 if (r_timereport_active)
3851                         R_TimeReport("worlddepth");
3852         }
3853         if (r_depthfirst.integer >= 2)
3854         {
3855                 R_DrawModelsDepth();
3856                 if (r_timereport_active)
3857                         R_TimeReport("modeldepth");
3858         }
3859
3860         if (cl.csqc_vidvars.drawworld && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->Draw)
3861         {
3862                 r_refdef.scene.worldmodel->Draw(r_refdef.scene.worldentity);
3863                 if (r_timereport_active)
3864                         R_TimeReport("world");
3865         }
3866
3867         // don't let sound skip if going slow
3868         if (r_refdef.scene.extraupdate)
3869                 S_ExtraUpdate ();
3870
3871         R_DrawModels();
3872         if (r_timereport_active)
3873                 R_TimeReport("models");
3874
3875         // don't let sound skip if going slow
3876         if (r_refdef.scene.extraupdate)
3877                 S_ExtraUpdate ();
3878
3879         if (r_shadows.integer > 0 && r_refdef.lightmapintensity > 0)
3880         {
3881                 R_DrawModelShadows();
3882
3883                 R_ResetViewRendering3D();
3884
3885                 // don't let sound skip if going slow
3886                 if (r_refdef.scene.extraupdate)
3887                         S_ExtraUpdate ();
3888         }
3889
3890         R_ShadowVolumeLighting(false);
3891         if (r_timereport_active)
3892                 R_TimeReport("rtlights");
3893
3894         // don't let sound skip if going slow
3895         if (r_refdef.scene.extraupdate)
3896                 S_ExtraUpdate ();
3897
3898         if (cl.csqc_vidvars.drawworld)
3899         {
3900                 R_DrawLightningBeams();
3901                 if (r_timereport_active)
3902                         R_TimeReport("lightning");
3903
3904                 R_DrawDecals();
3905                 if (r_timereport_active)
3906                         R_TimeReport("decals");
3907
3908                 R_DrawParticles();
3909                 if (r_timereport_active)
3910                         R_TimeReport("particles");
3911
3912                 R_DrawExplosions();
3913                 if (r_timereport_active)
3914                         R_TimeReport("explosions");
3915         }
3916
3917         R_SetupGenericShader(true);
3918         VM_CL_AddPolygonsToMeshQueue();
3919
3920         if (r_refdef.view.showdebug)
3921         {
3922                 if (cl_locs_show.integer)
3923                 {
3924                         R_DrawLocs();
3925                         if (r_timereport_active)
3926                                 R_TimeReport("showlocs");
3927                 }
3928
3929                 if (r_drawportals.integer)
3930                 {
3931                         R_DrawPortals();
3932                         if (r_timereport_active)
3933                                 R_TimeReport("portals");
3934                 }
3935
3936                 if (r_showbboxes.value > 0)
3937                 {
3938                         R_DrawEntityBBoxes();
3939                         if (r_timereport_active)
3940                                 R_TimeReport("bboxes");
3941                 }
3942         }
3943
3944         R_SetupGenericShader(true);
3945         R_MeshQueue_RenderTransparent();
3946         if (r_timereport_active)
3947                 R_TimeReport("drawtrans");
3948
3949         R_SetupGenericShader(true);
3950
3951         if (r_refdef.view.showdebug && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawDebug && (r_showtris.value > 0 || r_shownormals.value > 0 || r_showcollisionbrushes.value > 0))
3952         {
3953                 r_refdef.scene.worldmodel->DrawDebug(r_refdef.scene.worldentity);
3954                 if (r_timereport_active)
3955                         R_TimeReport("worlddebug");
3956                 R_DrawModelsDebug();
3957                 if (r_timereport_active)
3958                         R_TimeReport("modeldebug");
3959         }
3960
3961         R_SetupGenericShader(true);
3962
3963         if (cl.csqc_vidvars.drawworld)
3964         {
3965                 R_DrawCoronas();
3966                 if (r_timereport_active)
3967                         R_TimeReport("coronas");
3968         }
3969
3970         // don't let sound skip if going slow
3971         if (r_refdef.scene.extraupdate)
3972                 S_ExtraUpdate ();
3973
3974         R_ResetViewRendering2D();
3975 }
3976
3977 static const unsigned short bboxelements[36] =
3978 {
3979         5, 1, 3, 5, 3, 7,
3980         6, 2, 0, 6, 0, 4,
3981         7, 3, 2, 7, 2, 6,
3982         4, 0, 1, 4, 1, 5,
3983         4, 5, 7, 4, 7, 6,
3984         1, 0, 2, 1, 2, 3,
3985 };
3986
3987 void R_DrawBBoxMesh(vec3_t mins, vec3_t maxs, float cr, float cg, float cb, float ca)
3988 {
3989         int i;
3990         float *v, *c, f1, f2, vertex3f[8*3], color4f[8*4];
3991         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3992         GL_DepthMask(false);
3993         GL_DepthRange(0, 1);
3994         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
3995         R_Mesh_Matrix(&identitymatrix);
3996         R_Mesh_ResetTextureState();
3997
3998         vertex3f[ 0] = mins[0];vertex3f[ 1] = mins[1];vertex3f[ 2] = mins[2]; //
3999         vertex3f[ 3] = maxs[0];vertex3f[ 4] = mins[1];vertex3f[ 5] = mins[2];
4000         vertex3f[ 6] = mins[0];vertex3f[ 7] = maxs[1];vertex3f[ 8] = mins[2];
4001         vertex3f[ 9] = maxs[0];vertex3f[10] = maxs[1];vertex3f[11] = mins[2];
4002         vertex3f[12] = mins[0];vertex3f[13] = mins[1];vertex3f[14] = maxs[2];
4003         vertex3f[15] = maxs[0];vertex3f[16] = mins[1];vertex3f[17] = maxs[2];
4004         vertex3f[18] = mins[0];vertex3f[19] = maxs[1];vertex3f[20] = maxs[2];
4005         vertex3f[21] = maxs[0];vertex3f[22] = maxs[1];vertex3f[23] = maxs[2];
4006         R_FillColors(color4f, 8, cr, cg, cb, ca);
4007         if (r_refdef.fogenabled)
4008         {
4009                 for (i = 0, v = vertex3f, c = color4f;i < 8;i++, v += 3, c += 4)
4010                 {
4011                         f1 = FogPoint_World(v);
4012                         f2 = 1 - f1;
4013                         c[0] = c[0] * f1 + r_refdef.fogcolor[0] * f2;
4014                         c[1] = c[1] * f1 + r_refdef.fogcolor[1] * f2;
4015                         c[2] = c[2] * f1 + r_refdef.fogcolor[2] * f2;
4016                 }
4017         }
4018         R_Mesh_VertexPointer(vertex3f, 0, 0);
4019         R_Mesh_ColorPointer(color4f, 0, 0);
4020         R_Mesh_ResetTextureState();
4021         R_SetupGenericShader(false);
4022         R_Mesh_Draw(0, 8, 0, 12, NULL, bboxelements, 0, 0);
4023 }
4024
4025 static void R_DrawEntityBBoxes_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
4026 {
4027         int i;
4028         float color[4];
4029         prvm_edict_t *edict;
4030         prvm_prog_t *prog_save = prog;
4031
4032         // this function draws bounding boxes of server entities
4033         if (!sv.active)
4034                 return;
4035
4036         GL_CullFace(GL_NONE);
4037         R_SetupGenericShader(false);
4038
4039         prog = 0;
4040         SV_VM_Begin();
4041         for (i = 0;i < numsurfaces;i++)
4042         {
4043                 edict = PRVM_EDICT_NUM(surfacelist[i]);
4044                 switch ((int)edict->fields.server->solid)
4045                 {
4046                         case SOLID_NOT:      Vector4Set(color, 1, 1, 1, 0.05);break;
4047                         case SOLID_TRIGGER:  Vector4Set(color, 1, 0, 1, 0.10);break;
4048                         case SOLID_BBOX:     Vector4Set(color, 0, 1, 0, 0.10);break;
4049                         case SOLID_SLIDEBOX: Vector4Set(color, 1, 0, 0, 0.10);break;
4050                         case SOLID_BSP:      Vector4Set(color, 0, 0, 1, 0.05);break;
4051                         default:             Vector4Set(color, 0, 0, 0, 0.50);break;
4052                 }
4053                 color[3] *= r_showbboxes.value;
4054                 color[3] = bound(0, color[3], 1);
4055                 GL_DepthTest(!r_showdisabledepthtest.integer);
4056                 GL_CullFace(r_refdef.view.cullface_front);
4057                 R_DrawBBoxMesh(edict->priv.server->areamins, edict->priv.server->areamaxs, color[0], color[1], color[2], color[3]);
4058         }
4059         SV_VM_End();
4060         prog = prog_save;
4061 }
4062
4063 static void R_DrawEntityBBoxes(void)
4064 {
4065         int i;
4066         prvm_edict_t *edict;
4067         vec3_t center;
4068         prvm_prog_t *prog_save = prog;
4069
4070         // this function draws bounding boxes of server entities
4071         if (!sv.active)
4072                 return;
4073
4074         prog = 0;
4075         SV_VM_Begin();
4076         for (i = 0;i < prog->num_edicts;i++)
4077         {
4078                 edict = PRVM_EDICT_NUM(i);
4079                 if (edict->priv.server->free)
4080                         continue;
4081                 // exclude the following for now, as they don't live in world coordinate space and can't be solid:
4082                 if(PRVM_EDICTFIELDVALUE(edict, prog->fieldoffsets.tag_entity)->edict != 0)
4083                         continue;
4084                 if(PRVM_EDICTFIELDVALUE(edict, prog->fieldoffsets.viewmodelforclient)->edict != 0)
4085                         continue;
4086                 VectorLerp(edict->priv.server->areamins, 0.5f, edict->priv.server->areamaxs, center);
4087                 R_MeshQueue_AddTransparent(center, R_DrawEntityBBoxes_Callback, (entity_render_t *)NULL, i, (rtlight_t *)NULL);
4088         }
4089         SV_VM_End();
4090         prog = prog_save;
4091 }
4092
4093 unsigned short nomodelelements[24] =
4094 {
4095         5, 2, 0,
4096         5, 1, 2,
4097         5, 0, 3,
4098         5, 3, 1,
4099         0, 2, 4,
4100         2, 1, 4,
4101         3, 0, 4,
4102         1, 3, 4
4103 };
4104
4105 float nomodelvertex3f[6*3] =
4106 {
4107         -16,   0,   0,
4108          16,   0,   0,
4109           0, -16,   0,
4110           0,  16,   0,
4111           0,   0, -16,
4112           0,   0,  16
4113 };
4114
4115 float nomodelcolor4f[6*4] =
4116 {
4117         0.0f, 0.0f, 0.5f, 1.0f,
4118         0.0f, 0.0f, 0.5f, 1.0f,
4119         0.0f, 0.5f, 0.0f, 1.0f,
4120         0.0f, 0.5f, 0.0f, 1.0f,
4121         0.5f, 0.0f, 0.0f, 1.0f,
4122         0.5f, 0.0f, 0.0f, 1.0f
4123 };
4124
4125 void R_DrawNoModel_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
4126 {
4127         int i;
4128         float f1, f2, *c;
4129         float color4f[6*4];
4130         // this is only called once per entity so numsurfaces is always 1, and
4131         // surfacelist is always {0}, so this code does not handle batches
4132         R_Mesh_Matrix(&ent->matrix);
4133
4134         if (ent->flags & EF_ADDITIVE)
4135         {
4136                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
4137                 GL_DepthMask(false);
4138         }
4139         else if (ent->alpha < 1)
4140         {
4141                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
4142                 GL_DepthMask(false);
4143         }
4144         else
4145         {
4146                 GL_BlendFunc(GL_ONE, GL_ZERO);
4147                 GL_DepthMask(true);
4148         }
4149         GL_DepthRange(0, (ent->flags & RENDER_VIEWMODEL) ? 0.0625 : 1);
4150         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
4151         GL_DepthTest(!(ent->effects & EF_NODEPTHTEST));
4152         GL_CullFace((ent->effects & EF_DOUBLESIDED) ? GL_NONE : r_refdef.view.cullface_back);
4153         R_SetupGenericShader(false);
4154         R_Mesh_VertexPointer(nomodelvertex3f, 0, 0);
4155         if (r_refdef.fogenabled)
4156         {
4157                 vec3_t org;
4158                 memcpy(color4f, nomodelcolor4f, sizeof(float[6*4]));
4159                 R_Mesh_ColorPointer(color4f, 0, 0);
4160                 Matrix4x4_OriginFromMatrix(&ent->matrix, org);
4161                 f1 = FogPoint_World(org);
4162                 f2 = 1 - f1;
4163                 for (i = 0, c = color4f;i < 6;i++, c += 4)
4164                 {
4165                         c[0] = (c[0] * f1 + r_refdef.fogcolor[0] * f2);
4166                         c[1] = (c[1] * f1 + r_refdef.fogcolor[1] * f2);
4167                         c[2] = (c[2] * f1 + r_refdef.fogcolor[2] * f2);
4168                         c[3] *= ent->alpha;
4169                 }
4170         }
4171         else if (ent->alpha != 1)
4172         {
4173                 memcpy(color4f, nomodelcolor4f, sizeof(float[6*4]));
4174                 R_Mesh_ColorPointer(color4f, 0, 0);
4175                 for (i = 0, c = color4f;i < 6;i++, c += 4)
4176                         c[3] *= ent->alpha;
4177         }
4178         else
4179                 R_Mesh_ColorPointer(nomodelcolor4f, 0, 0);
4180         R_Mesh_ResetTextureState();
4181         R_Mesh_Draw(0, 6, 0, 8, NULL, nomodelelements, 0, 0);
4182 }
4183
4184 void R_DrawNoModel(entity_render_t *ent)
4185 {
4186         vec3_t org;
4187         Matrix4x4_OriginFromMatrix(&ent->matrix, org);
4188         //if ((ent->effects & EF_ADDITIVE) || (ent->alpha < 1))
4189                 R_MeshQueue_AddTransparent(ent->effects & EF_NODEPTHTEST ? r_refdef.view.origin : org, R_DrawNoModel_TransparentCallback, ent, 0, rsurface.rtlight);
4190         //else
4191         //      R_DrawNoModelCallback(ent, 0);
4192 }
4193
4194 void R_CalcBeam_Vertex3f (float *vert, const vec3_t org1, const vec3_t org2, float width)
4195 {
4196         vec3_t right1, right2, diff, normal;
4197
4198         VectorSubtract (org2, org1, normal);
4199
4200         // calculate 'right' vector for start
4201         VectorSubtract (r_refdef.view.origin, org1, diff);
4202         CrossProduct (normal, diff, right1);
4203         VectorNormalize (right1);
4204
4205         // calculate 'right' vector for end
4206         VectorSubtract (r_refdef.view.origin, org2, diff);
4207         CrossProduct (normal, diff, right2);
4208         VectorNormalize (right2);
4209
4210         vert[ 0] = org1[0] + width * right1[0];
4211         vert[ 1] = org1[1] + width * right1[1];
4212         vert[ 2] = org1[2] + width * right1[2];
4213         vert[ 3] = org1[0] - width * right1[0];
4214         vert[ 4] = org1[1] - width * right1[1];
4215         vert[ 5] = org1[2] - width * right1[2];
4216         vert[ 6] = org2[0] - width * right2[0];
4217         vert[ 7] = org2[1] - width * right2[1];
4218         vert[ 8] = org2[2] - width * right2[2];
4219         vert[ 9] = org2[0] + width * right2[0];
4220         vert[10] = org2[1] + width * right2[1];
4221         vert[11] = org2[2] + width * right2[2];
4222 }
4223
4224 float spritetexcoord2f[4*2] = {0, 1, 0, 0, 1, 0, 1, 1};
4225
4226 void R_DrawSprite(int blendfunc1, int blendfunc2, rtexture_t *texture, rtexture_t *fogtexture, qboolean depthdisable, qboolean depthshort, const vec3_t origin, const vec3_t left, const vec3_t up, float scalex1, float scalex2, float scaley1, float scaley2, float cr, float cg, float cb, float ca)
4227 {
4228         float fog = 1.0f;
4229         float vertex3f[12];
4230
4231         if (r_refdef.fogenabled && !depthdisable) // TODO maybe make the unfog effect a separate flag?
4232                 fog = FogPoint_World(origin);
4233
4234         R_Mesh_Matrix(&identitymatrix);
4235         GL_BlendFunc(blendfunc1, blendfunc2);
4236
4237         if(v_flipped_state)
4238         {
4239                 scalex1 = -scalex1;
4240                 scalex2 = -scalex2;
4241                 GL_CullFace(r_refdef.view.cullface_front);
4242         }
4243         else
4244                 GL_CullFace(r_refdef.view.cullface_back);
4245         GL_CullFace(GL_NONE);
4246
4247         GL_DepthMask(false);
4248         GL_DepthRange(0, depthshort ? 0.0625 : 1);
4249         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
4250         GL_DepthTest(!depthdisable);
4251
4252         vertex3f[ 0] = origin[0] + left[0] * scalex2 + up[0] * scaley1;
4253         vertex3f[ 1] = origin[1] + left[1] * scalex2 + up[1] * scaley1;
4254         vertex3f[ 2] = origin[2] + left[2] * scalex2 + up[2] * scaley1;
4255         vertex3f[ 3] = origin[0] + left[0] * scalex2 + up[0] * scaley2;
4256         vertex3f[ 4] = origin[1] + left[1] * scalex2 + up[1] * scaley2;
4257         vertex3f[ 5] = origin[2] + left[2] * scalex2 + up[2] * scaley2;
4258         vertex3f[ 6] = origin[0] + left[0] * scalex1 + up[0] * scaley2;
4259         vertex3f[ 7] = origin[1] + left[1] * scalex1 + up[1] * scaley2;
4260         vertex3f[ 8] = origin[2] + left[2] * scalex1 + up[2] * scaley2;
4261         vertex3f[ 9] = origin[0] + left[0] * scalex1 + up[0] * scaley1;
4262         vertex3f[10] = origin[1] + left[1] * scalex1 + up[1] * scaley1;
4263         vertex3f[11] = origin[2] + left[2] * scalex1 + up[2] * scaley1;
4264
4265         R_Mesh_VertexPointer(vertex3f, 0, 0);
4266         R_Mesh_ColorPointer(NULL, 0, 0);
4267         R_Mesh_ResetTextureState();
4268         R_SetupGenericShader(true);
4269         R_Mesh_TexBind(0, R_GetTexture(texture));
4270         R_Mesh_TexCoordPointer(0, 2, spritetexcoord2f, 0, 0);
4271         // FIXME: fixed function path can't properly handle r_refdef.view.colorscale > 1
4272         GL_Color(cr * fog * r_refdef.view.colorscale, cg * fog * r_refdef.view.colorscale, cb * fog * r_refdef.view.colorscale, ca);
4273         R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
4274
4275         if (blendfunc2 == GL_ONE_MINUS_SRC_ALPHA)
4276         {
4277                 R_Mesh_TexBind(0, R_GetTexture(fogtexture));
4278                 GL_BlendFunc(blendfunc1, GL_ONE);
4279                 fog = 1 - fog;
4280                 GL_Color(r_refdef.fogcolor[0] * fog, r_refdef.fogcolor[1] * fog, r_refdef.fogcolor[2] * fog, ca);
4281                 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
4282         }
4283 }
4284
4285 int R_Mesh_AddVertex(rmesh_t *mesh, float x, float y, float z)
4286 {
4287         int i;
4288         float *vertex3f;
4289         float v[3];
4290         VectorSet(v, x, y, z);
4291         for (i = 0, vertex3f = mesh->vertex3f;i < mesh->numvertices;i++, vertex3f += 3)
4292                 if (VectorDistance2(v, vertex3f) < mesh->epsilon2)
4293                         break;
4294         if (i == mesh->numvertices)
4295         {
4296                 if (mesh->numvertices < mesh->maxvertices)
4297                 {
4298                         VectorCopy(v, vertex3f);
4299                         mesh->numvertices++;
4300                 }
4301                 return mesh->numvertices;
4302         }
4303         else
4304                 return i;
4305 }
4306
4307 void R_Mesh_AddPolygon3f(rmesh_t *mesh, int numvertices, float *vertex3f)
4308 {
4309         int i;
4310         int *e, element[3];
4311         element[0] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);vertex3f += 3;
4312         element[1] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);vertex3f += 3;
4313         e = mesh->element3i + mesh->numtriangles * 3;
4314         for (i = 0;i < numvertices - 2;i++, vertex3f += 3)
4315         {
4316                 element[2] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);
4317                 if (mesh->numtriangles < mesh->maxtriangles)
4318                 {
4319                         *e++ = element[0];
4320                         *e++ = element[1];
4321                         *e++ = element[2];
4322                         mesh->numtriangles++;
4323                 }
4324                 element[1] = element[2];
4325         }
4326 }
4327
4328 void R_Mesh_AddPolygon3d(rmesh_t *mesh, int numvertices, double *vertex3d)
4329 {
4330         int i;
4331         int *e, element[3];
4332         element[0] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);vertex3d += 3;
4333         element[1] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);vertex3d += 3;
4334         e = mesh->element3i + mesh->numtriangles * 3;
4335         for (i = 0;i < numvertices - 2;i++, vertex3d += 3)
4336         {
4337                 element[2] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);
4338                 if (mesh->numtriangles < mesh->maxtriangles)
4339                 {
4340                         *e++ = element[0];
4341                         *e++ = element[1];
4342                         *e++ = element[2];
4343                         mesh->numtriangles++;
4344                 }
4345                 element[1] = element[2];
4346         }
4347 }
4348
4349 #define R_MESH_PLANE_DIST_EPSILON (1.0 / 32.0)
4350 void R_Mesh_AddBrushMeshFromPlanes(rmesh_t *mesh, int numplanes, mplane_t *planes)
4351 {
4352         int planenum, planenum2;
4353         int w;
4354         int tempnumpoints;
4355         mplane_t *plane, *plane2;
4356         double maxdist;
4357         double temppoints[2][256*3];
4358         // figure out how large a bounding box we need to properly compute this brush
4359         maxdist = 0;
4360         for (w = 0;w < numplanes;w++)
4361                 maxdist = max(maxdist, planes[w].dist);
4362         // now make it large enough to enclose the entire brush, and round it off to a reasonable multiple of 1024
4363         maxdist = floor(maxdist * (4.0 / 1024.0) + 1) * 1024.0;
4364         for (planenum = 0, plane = planes;planenum < numplanes;planenum++, plane++)
4365         {
4366                 w = 0;
4367                 tempnumpoints = 4;
4368                 PolygonD_QuadForPlane(temppoints[w], plane->normal[0], plane->normal[1], plane->normal[2], plane->dist, maxdist);
4369                 for (planenum2 = 0, plane2 = planes;planenum2 < numplanes && tempnumpoints >= 3;planenum2++, plane2++)
4370                 {
4371                         if (planenum2 == planenum)
4372                                 continue;
4373                         PolygonD_Divide(tempnumpoints, temppoints[w], plane2->normal[0], plane2->normal[1], plane2->normal[2], plane2->dist, R_MESH_PLANE_DIST_EPSILON, 0, NULL, NULL, 256, temppoints[!w], &tempnumpoints, NULL);
4374                         w = !w;
4375                 }
4376                 if (tempnumpoints < 3)
4377                         continue;
4378                 // generate elements forming a triangle fan for this polygon
4379                 R_Mesh_AddPolygon3d(mesh, tempnumpoints, temppoints[w]);
4380         }
4381 }
4382
4383 static void R_Texture_AddLayer(texture_t *t, qboolean depthmask, int blendfunc1, int blendfunc2, texturelayertype_t type, rtexture_t *texture, const matrix4x4_t *matrix, float r, float g, float b, float a)
4384 {
4385         texturelayer_t *layer;
4386         layer = t->currentlayers + t->currentnumlayers++;
4387         layer->type = type;
4388         layer->depthmask = depthmask;
4389         layer->blendfunc1 = blendfunc1;
4390         layer->blendfunc2 = blendfunc2;
4391         layer->texture = texture;
4392         layer->texmatrix = *matrix;
4393         layer->color[0] = r * r_refdef.view.colorscale;
4394         layer->color[1] = g * r_refdef.view.colorscale;
4395         layer->color[2] = b * r_refdef.view.colorscale;
4396         layer->color[3] = a;
4397 }
4398
4399 static float R_EvaluateQ3WaveFunc(q3wavefunc_t func, const float *parms)
4400 {
4401         double index, f;
4402         index = parms[2] + r_refdef.scene.time * parms[3];
4403         index -= floor(index);
4404         switch (func)
4405         {
4406         default:
4407         case Q3WAVEFUNC_NONE:
4408         case Q3WAVEFUNC_NOISE:
4409         case Q3WAVEFUNC_COUNT:
4410                 f = 0;
4411                 break;
4412         case Q3WAVEFUNC_SIN: f = sin(index * M_PI * 2);break;
4413         case Q3WAVEFUNC_SQUARE: f = index < 0.5 ? 1 : -1;break;
4414         case Q3WAVEFUNC_SAWTOOTH: f = index;break;
4415         case Q3WAVEFUNC_INVERSESAWTOOTH: f = 1 - index;break;
4416         case Q3WAVEFUNC_TRIANGLE:
4417                 index *= 4;
4418                 f = index - floor(index);
4419                 if (index < 1)
4420                         f = f;
4421                 else if (index < 2)
4422                         f = 1 - f;
4423                 else if (index < 3)
4424                         f = -f;
4425                 else
4426                         f = -(1 - f);
4427                 break;
4428         }
4429         return (float)(parms[0] + parms[1] * f);
4430 }
4431
4432 void R_UpdateTextureInfo(const entity_render_t *ent, texture_t *t)
4433 {
4434         int i;
4435         dp_model_t *model = ent->model;
4436         float f;
4437         float tcmat[12];
4438         q3shaderinfo_layer_tcmod_t *tcmod;
4439
4440         if (t->basematerialflags & MATERIALFLAG_NODRAW)
4441         {
4442                 t->currentmaterialflags = MATERIALFLAG_NODRAW;
4443                 return;
4444         }
4445
4446         // switch to an alternate material if this is a q1bsp animated material
4447         {
4448                 texture_t *texture = t;
4449                 int s = ent->skinnum;
4450                 if ((unsigned int)s >= (unsigned int)model->numskins)
4451                         s = 0;
4452                 if (model->skinscenes)
4453                 {
4454                         if (model->skinscenes[s].framecount > 1)
4455                                 s = model->skinscenes[s].firstframe + (unsigned int) (r_refdef.scene.time * model->skinscenes[s].framerate) % model->skinscenes[s].framecount;
4456                         else
4457                                 s = model->skinscenes[s].firstframe;
4458                 }
4459                 if (s > 0)
4460                         t = t + s * model->num_surfaces;
4461                 if (t->animated)
4462                 {
4463                         // use an alternate animation if the entity's frame is not 0,
4464                         // and only if the texture has an alternate animation
4465                         if (ent->frame2 != 0 && t->anim_total[1])
4466                                 t = t->anim_frames[1][(t->anim_total[1] >= 2) ? ((int)(r_refdef.scene.time * 5.0f) % t->anim_total[1]) : 0];
4467                         else
4468                                 t = t->anim_frames[0][(t->anim_total[0] >= 2) ? ((int)(r_refdef.scene.time * 5.0f) % t->anim_total[0]) : 0];
4469                 }
4470                 texture->currentframe = t;
4471         }
4472
4473         // update currentskinframe to be a qw skin or animation frame
4474         if ((i = ent->entitynumber - 1) >= 0 && i < cl.maxclients)
4475         {
4476                 if (strcmp(r_qwskincache[i], cl.scores[i].qw_skin))
4477                 {
4478                         strlcpy(r_qwskincache[i], cl.scores[i].qw_skin, sizeof(r_qwskincache[i]));
4479                         if (developer_loading.integer)
4480                                 Con_Printf("loading skins/%s\n", r_qwskincache[i]);
4481                         r_qwskincache_skinframe[i] = R_SkinFrame_LoadExternal(va("skins/%s", r_qwskincache[i]), TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_PICMIP | TEXF_COMPRESS, developer.integer > 0);
4482                 }
4483                 t->currentskinframe = r_qwskincache_skinframe[i];
4484                 if (t->currentskinframe == NULL)
4485                         t->currentskinframe = t->skinframes[(int)(t->skinframerate * (cl.time - ent->frame2time)) % t->numskinframes];
4486         }
4487         else if (t->numskinframes >= 2)
4488                 t->currentskinframe = t->skinframes[(int)(t->skinframerate * (cl.time - ent->frame2time)) % t->numskinframes];
4489         if (t->backgroundnumskinframes >= 2)
4490                 t->backgroundcurrentskinframe = t->backgroundskinframes[(int)(t->backgroundskinframerate * (cl.time - ent->frame2time)) % t->backgroundnumskinframes];
4491
4492         t->currentmaterialflags = t->basematerialflags;
4493         t->currentalpha = ent->alpha;
4494         if (t->basematerialflags & MATERIALFLAG_WATERALPHA && (model->brush.supportwateralpha || r_novis.integer))
4495                 t->currentalpha *= r_wateralpha.value;
4496         if(t->basematerialflags & MATERIALFLAG_WATERSHADER && r_waterstate.enabled && !r_refdef.view.isoverlay)
4497                 t->currentalpha *= t->r_water_wateralpha;
4498         if(!r_waterstate.enabled || r_refdef.view.isoverlay)
4499                 t->currentmaterialflags &= ~(MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION);
4500         if (!(ent->flags & RENDER_LIGHT))
4501                 t->currentmaterialflags |= MATERIALFLAG_FULLBRIGHT;
4502         else if (rsurface.modeltexcoordlightmap2f == NULL)
4503         {
4504                 // pick a model lighting mode
4505                 if (VectorLength2(ent->modellight_diffuse) >= (1.0f / 256.0f))
4506                         t->currentmaterialflags |= MATERIALFLAG_MODELLIGHT | MATERIALFLAG_MODELLIGHT_DIRECTIONAL;
4507                 else
4508                         t->currentmaterialflags |= MATERIALFLAG_MODELLIGHT;
4509         }
4510         if (ent->effects & EF_ADDITIVE)
4511                 t->currentmaterialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4512         else if (t->currentalpha < 1)
4513                 t->currentmaterialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4514         if (ent->effects & EF_DOUBLESIDED)
4515                 t->currentmaterialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
4516         if (ent->effects & EF_NODEPTHTEST)
4517                 t->currentmaterialflags |= MATERIALFLAG_SHORTDEPTHRANGE;
4518         if (ent->flags & RENDER_VIEWMODEL)
4519                 t->currentmaterialflags |= MATERIALFLAG_SHORTDEPTHRANGE;
4520         if (t->backgroundnumskinframes)
4521                 t->currentmaterialflags |= MATERIALFLAG_VERTEXTEXTUREBLEND;
4522         if (t->currentmaterialflags & MATERIALFLAG_BLENDED)
4523         {
4524                 if (t->currentmaterialflags & (MATERIALFLAG_REFRACTION | MATERIALFLAG_WATERSHADER))
4525                         t->currentmaterialflags &= ~MATERIALFLAG_BLENDED;
4526         }
4527         else
4528                 t->currentmaterialflags &= ~(MATERIALFLAG_REFRACTION | MATERIALFLAG_WATERSHADER);
4529
4530         // there is no tcmod
4531         if (t->currentmaterialflags & MATERIALFLAG_WATERSCROLL)
4532                 t->currenttexmatrix = r_waterscrollmatrix;
4533
4534         for (i = 0, tcmod = t->tcmods;i < Q3MAXTCMODS && tcmod->tcmod;i++, tcmod++)
4535         {
4536                 matrix4x4_t matrix;
4537                 switch(tcmod->tcmod)
4538                 {
4539                 case Q3TCMOD_COUNT:
4540                 case Q3TCMOD_NONE:
4541                         if (t->currentmaterialflags & MATERIALFLAG_WATERSCROLL)
4542                                 matrix = r_waterscrollmatrix;
4543                         else
4544                                 matrix = identitymatrix;
4545                         break;
4546                 case Q3TCMOD_ENTITYTRANSLATE:
4547                         // this is used in Q3 to allow the gamecode to control texcoord
4548                         // scrolling on the entity, which is not supported in darkplaces yet.
4549                         Matrix4x4_CreateTranslate(&matrix, 0, 0, 0);
4550                         break;
4551                 case Q3TCMOD_ROTATE:
4552                         Matrix4x4_CreateTranslate(&matrix, 0.5, 0.5, 0);
4553                         Matrix4x4_ConcatRotate(&matrix, tcmod->parms[0] * r_refdef.scene.time, 0, 0, 1);
4554                         Matrix4x4_ConcatTranslate(&matrix, -0.5, -0.5, 0);
4555                         break;
4556                 case Q3TCMOD_SCALE:
4557                         Matrix4x4_CreateScale3(&matrix, tcmod->parms[0], tcmod->parms[1], 1);
4558                         break;
4559                 case Q3TCMOD_SCROLL:
4560                         Matrix4x4_CreateTranslate(&matrix, tcmod->parms[0] * r_refdef.scene.time, tcmod->parms[1] * r_refdef.scene.time, 0);
4561                         break;
4562                 case Q3TCMOD_STRETCH:
4563                         f = 1.0f / R_EvaluateQ3WaveFunc(tcmod->wavefunc, tcmod->waveparms);
4564                         Matrix4x4_CreateFromQuakeEntity(&matrix, 0.5f * (1 - f), 0.5 * (1 - f), 0, 0, 0, 0, f);
4565                         break;
4566                 case Q3TCMOD_TRANSFORM:
4567                         VectorSet(tcmat +  0, tcmod->parms[0], tcmod->parms[1], 0);
4568                         VectorSet(tcmat +  3, tcmod->parms[2], tcmod->parms[3], 0);
4569                         VectorSet(tcmat +  6, 0                   , 0                , 1);
4570                         VectorSet(tcmat +  9, tcmod->parms[4], tcmod->parms[5], 0);
4571                         Matrix4x4_FromArray12FloatGL(&matrix, tcmat);
4572                         break;
4573                 case Q3TCMOD_TURBULENT:
4574                         // this is handled in the RSurf_PrepareVertices function
4575                         matrix = identitymatrix;
4576                         break;
4577                 }
4578                 // either replace or concatenate the transformation
4579                 if (i < 1)
4580                         t->currenttexmatrix = matrix;
4581                 else
4582                 {
4583                         matrix4x4_t temp = t->currenttexmatrix;
4584                         Matrix4x4_Concat(&t->currenttexmatrix, &matrix, &temp);
4585                 }
4586         }
4587
4588         t->colormapping = VectorLength2(ent->colormap_pantscolor) + VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f);
4589         t->basetexture = (!t->colormapping && t->currentskinframe->merged) ? t->currentskinframe->merged : t->currentskinframe->base;
4590         t->glosstexture = r_texture_black;
4591         t->backgroundbasetexture = t->backgroundnumskinframes ? ((!t->colormapping && t->backgroundcurrentskinframe->merged) ? t->backgroundcurrentskinframe->merged : t->backgroundcurrentskinframe->base) : r_texture_white;
4592         t->backgroundglosstexture = r_texture_black;
4593         t->specularpower = r_shadow_glossexponent.value;
4594         // TODO: store reference values for these in the texture?
4595         t->specularscale = 0;
4596         if (r_shadow_gloss.integer > 0)
4597         {
4598                 if (t->currentskinframe->gloss || (t->backgroundcurrentskinframe && t->backgroundcurrentskinframe->gloss))
4599                 {
4600                         if (r_shadow_glossintensity.value > 0)
4601                         {
4602                                 t->glosstexture = t->currentskinframe->gloss ? t->currentskinframe->gloss : r_texture_white;
4603                                 t->backgroundglosstexture = (t->backgroundcurrentskinframe && t->backgroundcurrentskinframe->gloss) ? t->backgroundcurrentskinframe->gloss : r_texture_white;
4604                                 t->specularscale = r_shadow_glossintensity.value;
4605                         }
4606                 }
4607                 else if (r_shadow_gloss.integer >= 2 && r_shadow_gloss2intensity.value > 0)
4608                 {
4609                         t->glosstexture = r_texture_white;
4610                         t->backgroundglosstexture = r_texture_white;
4611                         t->specularscale = r_shadow_gloss2intensity.value;
4612                 }
4613         }
4614
4615         // lightmaps mode looks bad with dlights using actual texturing, so turn
4616         // off the colormap and glossmap, but leave the normalmap on as it still
4617         // accurately represents the shading involved
4618         if (gl_lightmaps.integer)
4619         {
4620                 t->basetexture = r_texture_grey128;
4621                 t->backgroundbasetexture = NULL;
4622                 t->specularscale = 0;
4623                 t->currentmaterialflags = MATERIALFLAG_WALL | (t->currentmaterialflags & (MATERIALFLAG_NOCULLFACE | MATERIALFLAG_MODELLIGHT | MATERIALFLAG_MODELLIGHT_DIRECTIONAL | MATERIALFLAG_NODEPTHTEST | MATERIALFLAG_SHORTDEPTHRANGE));
4624         }
4625
4626         Vector4Set(t->lightmapcolor, ent->colormod[0], ent->colormod[1], ent->colormod[2], t->currentalpha);
4627         VectorClear(t->dlightcolor);
4628         t->currentnumlayers = 0;
4629         if (t->currentmaterialflags & MATERIALFLAG_WALL)
4630         {
4631                 int layerflags = 0;
4632                 int blendfunc1, blendfunc2, depthmask;
4633                 if (t->currentmaterialflags & MATERIALFLAG_ADD)
4634                 {
4635                         blendfunc1 = GL_SRC_ALPHA;
4636                         blendfunc2 = GL_ONE;
4637                 }
4638                 else if (t->currentmaterialflags & MATERIALFLAG_ALPHA)
4639                 {
4640                         blendfunc1 = GL_SRC_ALPHA;
4641                         blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
4642                 }
4643                 else if (t->currentmaterialflags & MATERIALFLAG_CUSTOMBLEND)
4644                 {
4645                         blendfunc1 = t->customblendfunc[0];
4646                         blendfunc2 = t->customblendfunc[1];
4647                 }
4648                 else
4649                 {
4650                         blendfunc1 = GL_ONE;
4651                         blendfunc2 = GL_ZERO;
4652                 }
4653                 depthmask = !(t->currentmaterialflags & MATERIALFLAG_BLENDED);
4654                 if (r_refdef.fogenabled && (t->currentmaterialflags & MATERIALFLAG_BLENDED))
4655                         layerflags |= TEXTURELAYERFLAG_FOGDARKEN;
4656                 if (t->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
4657                 {
4658                         // fullbright is not affected by r_refdef.lightmapintensity
4659                         R_Texture_AddLayer(t, depthmask, blendfunc1, blendfunc2, TEXTURELAYERTYPE_TEXTURE, t->basetexture, &t->currenttexmatrix, t->lightmapcolor[0], t->lightmapcolor[1], t->lightmapcolor[2], t->lightmapcolor[3]);
4660                         if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4661                                 R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_TEXTURE, t->currentskinframe->pants, &t->currenttexmatrix, ent->colormap_pantscolor[0] * t->lightmapcolor[0], ent->colormap_pantscolor[1] * t->lightmapcolor[1], ent->colormap_pantscolor[2] * t->lightmapcolor[2], t->lightmapcolor[3]);
4662                         if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4663                                 R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_TEXTURE, t->currentskinframe->shirt, &t->currenttexmatrix, ent->colormap_shirtcolor[0] * t->lightmapcolor[0], ent->colormap_shirtcolor[1] * t->lightmapcolor[1], ent->colormap_shirtcolor[2] * t->lightmapcolor[2], t->lightmapcolor[3]);
4664                 }
4665                 else
4666                 {
4667                         vec3_t ambientcolor;
4668                         float colorscale;
4669                         // set the color tint used for lights affecting this surface
4670                         VectorSet(t->dlightcolor, ent->colormod[0] * t->lightmapcolor[3], ent->colormod[1] * t->lightmapcolor[3], ent->colormod[2] * t->lightmapcolor[3]);
4671                         colorscale = 2;
4672                         // q3bsp has no lightmap updates, so the lightstylevalue that
4673                         // would normally be baked into the lightmap must be
4674                         // applied to the color
4675                         // FIXME: r_glsl 1 rendering doesn't support overbright lightstyles with this (the default light style is not overbright)
4676                         if (ent->model->type == mod_brushq3)
4677                                 colorscale *= r_refdef.scene.rtlightstylevalue[0];
4678                         colorscale *= r_refdef.lightmapintensity;
4679                         VectorScale(t->lightmapcolor, r_refdef.scene.ambient * (1.0f / 64.0f), ambientcolor);
4680                         VectorScale(t->lightmapcolor, colorscale, t->lightmapcolor);
4681                         // basic lit geometry
4682                         R_Texture_AddLayer(t, depthmask, blendfunc1, blendfunc2, TEXTURELAYERTYPE_LITTEXTURE, t->basetexture, &t->currenttexmatrix, t->lightmapcolor[0], t->lightmapcolor[1], t->lightmapcolor[2], t->lightmapcolor[3]);
4683                         // add pants/shirt if needed
4684                         if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4685                                 R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_LITTEXTURE, t->currentskinframe->pants, &t->currenttexmatrix, ent->colormap_pantscolor[0] * t->lightmapcolor[0], ent->colormap_pantscolor[1] * t->lightmapcolor[1], ent->colormap_pantscolor[2]  * t->lightmapcolor[2], t->lightmapcolor[3]);
4686                         if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4687                                 R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_LITTEXTURE, t->currentskinframe->shirt, &t->currenttexmatrix, ent->colormap_shirtcolor[0] * t->lightmapcolor[0], ent->colormap_shirtcolor[1] * t->lightmapcolor[1], ent->colormap_shirtcolor[2] * t->lightmapcolor[2], t->lightmapcolor[3]);
4688                         // now add ambient passes if needed
4689                         if (VectorLength2(ambientcolor) >= (1.0f/1048576.0f))
4690                         {
4691                                 R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_TEXTURE, t->basetexture, &t->currenttexmatrix, ambientcolor[0], ambientcolor[1], ambientcolor[2], t->lightmapcolor[3]);
4692                                 if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4693                                         R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_TEXTURE, t->currentskinframe->pants, &t->currenttexmatrix, ent->colormap_pantscolor[0] * ambientcolor[0], ent->colormap_pantscolor[1] * ambientcolor[1], ent->colormap_pantscolor[2] * ambientcolor[2], t->lightmapcolor[3]);
4694                                 if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4695                                         R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_TEXTURE, t->currentskinframe->shirt, &t->currenttexmatrix, ent->colormap_shirtcolor[0] * ambientcolor[0], ent->colormap_shirtcolor[1] * ambientcolor[1], ent->colormap_shirtcolor[2] * ambientcolor[2], t->lightmapcolor[3]);
4696                         }
4697                 }
4698                 if (t->currentskinframe->glow != NULL && !gl_lightmaps.integer)
4699                         R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_TEXTURE, t->currentskinframe->glow, &t->currenttexmatrix, r_hdr_glowintensity.value, r_hdr_glowintensity.value, r_hdr_glowintensity.value, t->lightmapcolor[3]);
4700                 if (r_refdef.fogenabled && !(t->currentmaterialflags & MATERIALFLAG_ADD))
4701                 {
4702                         // if this is opaque use alpha blend which will darken the earlier
4703                         // passes cheaply.
4704                         //
4705                         // if this is an alpha blended material, all the earlier passes
4706                         // were darkened by fog already, so we only need to add the fog
4707                         // color ontop through the fog mask texture
4708                         //
4709                         // if this is an additive blended material, all the earlier passes
4710                         // were darkened by fog already, and we should not add fog color
4711                         // (because the background was not darkened, there is no fog color
4712                         // that was lost behind it).
4713                         R_Texture_AddLayer(t, false, GL_SRC_ALPHA, (t->currentmaterialflags & MATERIALFLAG_BLENDED) ? GL_ONE : GL_ONE_MINUS_SRC_ALPHA, TEXTURELAYERTYPE_FOG, t->currentskinframe->fog, &identitymatrix, r_refdef.fogcolor[0] / r_refdef.view.colorscale, r_refdef.fogcolor[1] / r_refdef.view.colorscale, r_refdef.fogcolor[2] / r_refdef.view.colorscale, t->lightmapcolor[3]);
4714                 }
4715         }
4716 }
4717
4718 void R_UpdateAllTextureInfo(entity_render_t *ent)
4719 {
4720         int i;
4721         if (ent->model)
4722                 for (i = 0;i < ent->model->num_texturesperskin;i++)
4723                         R_UpdateTextureInfo(ent, ent->model->data_textures + i);
4724 }
4725
4726 rsurfacestate_t rsurface;
4727
4728 void R_Mesh_ResizeArrays(int newvertices)
4729 {
4730         float *base;
4731         if (rsurface.array_size >= newvertices)
4732                 return;
4733         if (rsurface.array_modelvertex3f)
4734                 Mem_Free(rsurface.array_modelvertex3f);
4735         rsurface.array_size = (newvertices + 1023) & ~1023;
4736         base = (float *)Mem_Alloc(r_main_mempool, rsurface.array_size * sizeof(float[33]));
4737         rsurface.array_modelvertex3f     = base + rsurface.array_size * 0;
4738         rsurface.array_modelsvector3f    = base + rsurface.array_size * 3;
4739         rsurface.array_modeltvector3f    = base + rsurface.array_size * 6;
4740         rsurface.array_modelnormal3f     = base + rsurface.array_size * 9;
4741         rsurface.array_deformedvertex3f  = base + rsurface.array_size * 12;
4742         rsurface.array_deformedsvector3f = base + rsurface.array_size * 15;
4743         rsurface.array_deformedtvector3f = base + rsurface.array_size * 18;
4744         rsurface.array_deformednormal3f  = base + rsurface.array_size * 21;
4745         rsurface.array_texcoord3f        = base + rsurface.array_size * 24;
4746         rsurface.array_color4f           = base + rsurface.array_size * 27;
4747         rsurface.array_generatedtexcoordtexture2f = base + rsurface.array_size * 31;
4748 }
4749
4750 void RSurf_ActiveWorldEntity(void)
4751 {
4752         dp_model_t *model = r_refdef.scene.worldmodel;
4753         if (rsurface.array_size < model->surfmesh.num_vertices)
4754                 R_Mesh_ResizeArrays(model->surfmesh.num_vertices);
4755         rsurface.matrix = identitymatrix;
4756         rsurface.inversematrix = identitymatrix;
4757         R_Mesh_Matrix(&identitymatrix);
4758         VectorCopy(r_refdef.view.origin, rsurface.modelorg);
4759         VectorSet(rsurface.modellight_ambient, 0, 0, 0);
4760         VectorSet(rsurface.modellight_diffuse, 0, 0, 0);
4761         VectorSet(rsurface.modellight_lightdir, 0, 0, 1);
4762         VectorSet(rsurface.colormap_pantscolor, 0, 0, 0);
4763         VectorSet(rsurface.colormap_shirtcolor, 0, 0, 0);
4764         rsurface.frameblend[0].frame = 0;
4765         rsurface.frameblend[0].lerp = 1;
4766         rsurface.frameblend[1].frame = 0;
4767         rsurface.frameblend[1].lerp = 0;
4768         rsurface.frameblend[2].frame = 0;
4769         rsurface.frameblend[2].lerp = 0;
4770         rsurface.frameblend[3].frame = 0;
4771         rsurface.frameblend[3].lerp = 0;
4772         rsurface.basepolygonfactor = r_refdef.polygonfactor;
4773         rsurface.basepolygonoffset = r_refdef.polygonoffset;
4774         rsurface.modelvertex3f  = model->surfmesh.data_vertex3f;
4775         rsurface.modelvertex3f_bufferobject = model->surfmesh.vbo;
4776         rsurface.modelvertex3f_bufferoffset = model->surfmesh.vbooffset_vertex3f;
4777         rsurface.modelsvector3f = model->surfmesh.data_svector3f;
4778         rsurface.modelsvector3f_bufferobject = model->surfmesh.vbo;
4779         rsurface.modelsvector3f_bufferoffset = model->surfmesh.vbooffset_svector3f;
4780         rsurface.modeltvector3f = model->surfmesh.data_tvector3f;
4781         rsurface.modeltvector3f_bufferobject = model->surfmesh.vbo;
4782         rsurface.modeltvector3f_bufferoffset = model->surfmesh.vbooffset_tvector3f;
4783         rsurface.modelnormal3f  = model->surfmesh.data_normal3f;
4784         rsurface.modelnormal3f_bufferobject = model->surfmesh.vbo;
4785         rsurface.modelnormal3f_bufferoffset = model->surfmesh.vbooffset_normal3f;
4786         rsurface.modellightmapcolor4f  = model->surfmesh.data_lightmapcolor4f;
4787         rsurface.modellightmapcolor4f_bufferobject = model->surfmesh.vbo;
4788         rsurface.modellightmapcolor4f_bufferoffset = model->surfmesh.vbooffset_lightmapcolor4f;
4789         rsurface.modeltexcoordtexture2f  = model->surfmesh.data_texcoordtexture2f;
4790         rsurface.modeltexcoordtexture2f_bufferobject = model->surfmesh.vbo;
4791         rsurface.modeltexcoordtexture2f_bufferoffset = model->surfmesh.vbooffset_texcoordtexture2f;
4792         rsurface.modeltexcoordlightmap2f  = model->surfmesh.data_texcoordlightmap2f;
4793         rsurface.modeltexcoordlightmap2f_bufferobject = model->surfmesh.vbo;
4794         rsurface.modeltexcoordlightmap2f_bufferoffset = model->surfmesh.vbooffset_texcoordlightmap2f;
4795         rsurface.modelelement3i = model->surfmesh.data_element3i;
4796         rsurface.modelelement3s = model->surfmesh.data_element3s;
4797         rsurface.modelelement3i_bufferobject = model->surfmesh.ebo3i;
4798         rsurface.modelelement3s_bufferobject = model->surfmesh.ebo3s;
4799         rsurface.modellightmapoffsets = model->surfmesh.data_lightmapoffsets;
4800         rsurface.modelnum_vertices = model->surfmesh.num_vertices;
4801         rsurface.modelnum_triangles = model->surfmesh.num_triangles;
4802         rsurface.modelsurfaces = model->data_surfaces;
4803         rsurface.generatedvertex = false;
4804         rsurface.vertex3f  = rsurface.modelvertex3f;
4805         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4806         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4807         rsurface.svector3f = rsurface.modelsvector3f;
4808         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4809         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4810         rsurface.tvector3f = rsurface.modeltvector3f;
4811         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4812         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4813         rsurface.normal3f  = rsurface.modelnormal3f;
4814         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4815         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4816         rsurface.texcoordtexture2f = rsurface.modeltexcoordtexture2f;
4817 }
4818
4819 void RSurf_ActiveModelEntity(const entity_render_t *ent, qboolean wantnormals, qboolean wanttangents)
4820 {
4821         dp_model_t *model = ent->model;
4822         if (rsurface.array_size < model->surfmesh.num_vertices)
4823                 R_Mesh_ResizeArrays(model->surfmesh.num_vertices);
4824         rsurface.matrix = ent->matrix;
4825         rsurface.inversematrix = ent->inversematrix;
4826         R_Mesh_Matrix(&rsurface.matrix);
4827         Matrix4x4_Transform(&rsurface.inversematrix, r_refdef.view.origin, rsurface.modelorg);
4828         rsurface.modellight_ambient[0] = ent->modellight_ambient[0] * ent->colormod[0];
4829         rsurface.modellight_ambient[1] = ent->modellight_ambient[1] * ent->colormod[1];
4830         rsurface.modellight_ambient[2] = ent->modellight_ambient[2] * ent->colormod[2];
4831         rsurface.modellight_diffuse[0] = ent->modellight_diffuse[0] * ent->colormod[0];
4832         rsurface.modellight_diffuse[1] = ent->modellight_diffuse[1] * ent->colormod[1];
4833         rsurface.modellight_diffuse[2] = ent->modellight_diffuse[2] * ent->colormod[2];
4834         VectorCopy(ent->modellight_diffuse, rsurface.modellight_diffuse);
4835         VectorCopy(ent->modellight_lightdir, rsurface.modellight_lightdir);
4836         VectorCopy(ent->colormap_pantscolor, rsurface.colormap_pantscolor);
4837         VectorCopy(ent->colormap_shirtcolor, rsurface.colormap_shirtcolor);
4838         rsurface.frameblend[0] = ent->frameblend[0];
4839         rsurface.frameblend[1] = ent->frameblend[1];
4840         rsurface.frameblend[2] = ent->frameblend[2];
4841         rsurface.frameblend[3] = ent->frameblend[3];
4842         rsurface.basepolygonfactor = r_refdef.polygonfactor;
4843         rsurface.basepolygonoffset = r_refdef.polygonoffset;
4844         if (ent->model->brush.submodel)
4845         {
4846                 rsurface.basepolygonfactor += r_polygonoffset_submodel_factor.value;
4847                 rsurface.basepolygonoffset += r_polygonoffset_submodel_offset.value;
4848         }
4849         if (model->surfmesh.isanimated && model->AnimateVertices && (rsurface.frameblend[0].lerp != 1 || rsurface.frameblend[0].frame != 0))
4850         {
4851                 if (wanttangents)
4852                 {
4853                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4854                         rsurface.modelsvector3f = rsurface.array_modelsvector3f;
4855                         rsurface.modeltvector3f = rsurface.array_modeltvector3f;
4856                         rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4857                         model->AnimateVertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, rsurface.array_modelnormal3f, rsurface.array_modelsvector3f, rsurface.array_modeltvector3f);
4858                 }
4859                 else if (wantnormals)
4860                 {
4861                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4862                         rsurface.modelsvector3f = NULL;
4863                         rsurface.modeltvector3f = NULL;
4864                         rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4865                         model->AnimateVertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, rsurface.array_modelnormal3f, NULL, NULL);
4866                 }
4867                 else
4868                 {
4869                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4870                         rsurface.modelsvector3f = NULL;
4871                         rsurface.modeltvector3f = NULL;
4872                         rsurface.modelnormal3f = NULL;
4873                         model->AnimateVertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, NULL, NULL, NULL);
4874                 }
4875                 rsurface.modelvertex3f_bufferobject = 0;
4876                 rsurface.modelvertex3f_bufferoffset = 0;
4877                 rsurface.modelsvector3f_bufferobject = 0;
4878                 rsurface.modelsvector3f_bufferoffset = 0;
4879                 rsurface.modeltvector3f_bufferobject = 0;
4880                 rsurface.modeltvector3f_bufferoffset = 0;
4881                 rsurface.modelnormal3f_bufferobject = 0;
4882                 rsurface.modelnormal3f_bufferoffset = 0;
4883                 rsurface.generatedvertex = true;
4884         }
4885         else
4886         {
4887                 rsurface.modelvertex3f  = model->surfmesh.data_vertex3f;
4888                 rsurface.modelvertex3f_bufferobject = model->surfmesh.vbo;
4889                 rsurface.modelvertex3f_bufferoffset = model->surfmesh.vbooffset_vertex3f;
4890                 rsurface.modelsvector3f = model->surfmesh.data_svector3f;
4891                 rsurface.modelsvector3f_bufferobject = model->surfmesh.vbo;
4892                 rsurface.modelsvector3f_bufferoffset = model->surfmesh.vbooffset_svector3f;
4893                 rsurface.modeltvector3f = model->surfmesh.data_tvector3f;
4894                 rsurface.modeltvector3f_bufferobject = model->surfmesh.vbo;
4895                 rsurface.modeltvector3f_bufferoffset = model->surfmesh.vbooffset_tvector3f;
4896                 rsurface.modelnormal3f  = model->surfmesh.data_normal3f;
4897                 rsurface.modelnormal3f_bufferobject = model->surfmesh.vbo;
4898                 rsurface.modelnormal3f_bufferoffset = model->surfmesh.vbooffset_normal3f;
4899                 rsurface.generatedvertex = false;
4900         }
4901         rsurface.modellightmapcolor4f  = model->surfmesh.data_lightmapcolor4f;
4902         rsurface.modellightmapcolor4f_bufferobject = model->surfmesh.vbo;
4903         rsurface.modellightmapcolor4f_bufferoffset = model->surfmesh.vbooffset_lightmapcolor4f;
4904         rsurface.modeltexcoordtexture2f  = model->surfmesh.data_texcoordtexture2f;
4905         rsurface.modeltexcoordtexture2f_bufferobject = model->surfmesh.vbo;
4906         rsurface.modeltexcoordtexture2f_bufferoffset = model->surfmesh.vbooffset_texcoordtexture2f;
4907         rsurface.modeltexcoordlightmap2f  = model->surfmesh.data_texcoordlightmap2f;
4908         rsurface.modeltexcoordlightmap2f_bufferobject = model->surfmesh.vbo;
4909         rsurface.modeltexcoordlightmap2f_bufferoffset = model->surfmesh.vbooffset_texcoordlightmap2f;
4910         rsurface.modelelement3i = model->surfmesh.data_element3i;
4911         rsurface.modelelement3s = model->surfmesh.data_element3s;
4912         rsurface.modelelement3i_bufferobject = model->surfmesh.ebo3i;
4913         rsurface.modelelement3s_bufferobject = model->surfmesh.ebo3s;
4914         rsurface.modellightmapoffsets = model->surfmesh.data_lightmapoffsets;
4915         rsurface.modelnum_vertices = model->surfmesh.num_vertices;
4916         rsurface.modelnum_triangles = model->surfmesh.num_triangles;
4917         rsurface.modelsurfaces = model->data_surfaces;
4918         rsurface.vertex3f  = rsurface.modelvertex3f;
4919         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4920         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4921         rsurface.svector3f = rsurface.modelsvector3f;
4922         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4923         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4924         rsurface.tvector3f = rsurface.modeltvector3f;
4925         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4926         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4927         rsurface.normal3f  = rsurface.modelnormal3f;
4928         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4929         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4930         rsurface.texcoordtexture2f = rsurface.modeltexcoordtexture2f;
4931 }
4932
4933 static const int quadedges[6][2] = {{0, 1}, {0, 2}, {0, 3}, {1, 2}, {1, 3}, {2, 3}};
4934 void RSurf_PrepareVerticesForBatch(qboolean generatenormals, qboolean generatetangents, int texturenumsurfaces, msurface_t **texturesurfacelist)
4935 {
4936         int deformindex;
4937         int texturesurfaceindex;
4938         int i, j;
4939         float amplitude;
4940         float animpos;
4941         float scale;
4942         const float *v1, *in_tc;
4943         float *out_tc;
4944         float center[3], forward[3], right[3], up[3], v[3], newforward[3], newright[3], newup[3];
4945         float waveparms[4];
4946         q3shaderinfo_deform_t *deform;
4947         // if vertices are dynamic (animated models), generate them into the temporary rsurface.array_model* arrays and point rsurface.model* at them instead of the static data from the model itself
4948         if (rsurface.generatedvertex)
4949         {
4950                 if (rsurface.texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
4951                         generatenormals = true;
4952                 for (i = 0;i < Q3MAXDEFORMS;i++)
4953                 {
4954                         if (rsurface.texture->deforms[i].deform == Q3DEFORM_AUTOSPRITE)
4955                         {
4956                                 generatetangents = true;
4957                                 generatenormals = true;
4958                         }
4959                         if (rsurface.texture->deforms[i].deform != Q3DEFORM_NONE)
4960                                 generatenormals = true;
4961                 }
4962                 if (generatenormals && !rsurface.modelnormal3f)
4963                 {
4964                         rsurface.normal3f = rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4965                         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject = 0;
4966                         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset = 0;
4967                         Mod_BuildNormals(0, rsurface.modelnum_vertices, rsurface.modelnum_triangles, rsurface.modelvertex3f, rsurface.modelelement3i, rsurface.array_modelnormal3f, r_smoothnormals_areaweighting.integer);
4968                 }
4969                 if (generatetangents && !rsurface.modelsvector3f)
4970                 {
4971                         rsurface.svector3f = rsurface.modelsvector3f = rsurface.array_modelsvector3f;
4972                         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject = 0;
4973                         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset = 0;
4974                         rsurface.tvector3f = rsurface.modeltvector3f = rsurface.array_modeltvector3f;
4975                         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject = 0;
4976                         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset = 0;
4977                         Mod_BuildTextureVectorsFromNormals(0, rsurface.modelnum_vertices, rsurface.modelnum_triangles, rsurface.modelvertex3f, rsurface.modeltexcoordtexture2f, rsurface.modelnormal3f, rsurface.modelelement3i, rsurface.array_modelsvector3f, rsurface.array_modeltvector3f, r_smoothnormals_areaweighting.integer);
4978                 }
4979         }
4980         rsurface.vertex3f  = rsurface.modelvertex3f;
4981         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4982         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4983         rsurface.svector3f = rsurface.modelsvector3f;
4984         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4985         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4986         rsurface.tvector3f = rsurface.modeltvector3f;
4987         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4988         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4989         rsurface.normal3f  = rsurface.modelnormal3f;
4990         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4991         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4992         // if vertices are deformed (sprite flares and things in maps, possibly
4993         // water waves, bulges and other deformations), generate them into
4994         // rsurface.deform* arrays from whatever the rsurface.* arrays point to
4995         // (may be static model data or generated data for an animated model, or
4996         //  the previous deform pass)
4997         for (deformindex = 0, deform = rsurface.texture->deforms;deformindex < Q3MAXDEFORMS && deform->deform;deformindex++, deform++)
4998         {
4999                 switch (deform->deform)
5000                 {
5001                 default:
5002                 case Q3DEFORM_PROJECTIONSHADOW:
5003                 case Q3DEFORM_TEXT0:
5004                 case Q3DEFORM_TEXT1:
5005                 case Q3DEFORM_TEXT2:
5006                 case Q3DEFORM_TEXT3:
5007                 case Q3DEFORM_TEXT4:
5008                 case Q3DEFORM_TEXT5:
5009                 case Q3DEFORM_TEXT6:
5010                 case Q3DEFORM_TEXT7:
5011                 case Q3DEFORM_NONE:
5012                         break;
5013                 case Q3DEFORM_AUTOSPRITE:
5014                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.forward, newforward);
5015                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.right, newright);
5016                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.up, newup);
5017                         VectorNormalize(newforward);
5018                         VectorNormalize(newright);
5019                         VectorNormalize(newup);
5020                         // make deformed versions of only the model vertices used by the specified surfaces
5021                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5022                         {
5023                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5024                                 // a single autosprite surface can contain multiple sprites...
5025                                 for (j = 0;j < surface->num_vertices - 3;j += 4)
5026                                 {
5027                                         VectorClear(center);
5028                                         for (i = 0;i < 4;i++)
5029                                                 VectorAdd(center, (rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i) * 3, center);
5030                                         VectorScale(center, 0.25f, center);
5031                                         VectorCopy((rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, forward);
5032                                         VectorCopy((rsurface.svector3f + 3 * surface->num_firstvertex) + j*3, right);
5033                                         VectorCopy((rsurface.tvector3f + 3 * surface->num_firstvertex) + j*3, up);
5034                                         for (i = 0;i < 4;i++)
5035                                         {
5036                                                 VectorSubtract((rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i)*3, center, v);
5037                                                 VectorMAMAMAM(1, center, DotProduct(forward, v), newforward, DotProduct(right, v), newright, DotProduct(up, v), newup, rsurface.array_deformedvertex3f + (surface->num_firstvertex+i+j) * 3);
5038                                         }
5039                                 }
5040                                 Mod_BuildNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, rsurface.vertex3f, rsurface.modelelement3i + surface->num_firsttriangle * 3, rsurface.array_deformednormal3f, r_smoothnormals_areaweighting.integer);
5041                                 Mod_BuildTextureVectorsFromNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, rsurface.vertex3f, rsurface.modeltexcoordtexture2f, rsurface.array_deformednormal3f, rsurface.modelelement3i + surface->num_firsttriangle * 3, rsurface.array_deformedsvector3f, rsurface.array_deformedtvector3f, r_smoothnormals_areaweighting.integer);
5042                         }
5043                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
5044                         rsurface.vertex3f_bufferobject = 0;
5045                         rsurface.vertex3f_bufferoffset = 0;
5046                         rsurface.svector3f = rsurface.array_deformedsvector3f;
5047                         rsurface.svector3f_bufferobject = 0;
5048                         rsurface.svector3f_bufferoffset = 0;
5049                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
5050                         rsurface.tvector3f_bufferobject = 0;
5051                         rsurface.tvector3f_bufferoffset = 0;
5052                         rsurface.normal3f = rsurface.array_deformednormal3f;
5053                         rsurface.normal3f_bufferobject = 0;
5054                         rsurface.normal3f_bufferoffset = 0;
5055                         break;
5056                 case Q3DEFORM_AUTOSPRITE2:
5057                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.forward, newforward);
5058                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.right, newright);
5059                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.up, newup);
5060                         VectorNormalize(newforward);
5061                         VectorNormalize(newright);
5062                         VectorNormalize(newup);
5063                         // make deformed versions of only the model vertices used by the specified surfaces
5064                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5065                         {
5066                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5067                                 const float *v1, *v2;
5068                                 vec3_t start, end;
5069                                 float f, l;
5070                                 struct
5071                                 {
5072                                         float length2;
5073                                         const float *v1;
5074                                         const float *v2;
5075                                 }
5076                                 shortest[2];
5077                                 memset(shortest, 0, sizeof(shortest));
5078                                 // a single autosprite surface can contain multiple sprites...
5079                                 for (j = 0;j < surface->num_vertices - 3;j += 4)
5080                                 {
5081                                         VectorClear(center);
5082                                         for (i = 0;i < 4;i++)
5083                                                 VectorAdd(center, (rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i) * 3, center);
5084                                         VectorScale(center, 0.25f, center);
5085                                         // find the two shortest edges, then use them to define the
5086                                         // axis vectors for rotating around the central axis
5087                                         for (i = 0;i < 6;i++)
5088                                         {
5089                                                 v1 = rsurface.vertex3f + 3 * (surface->num_firstvertex + quadedges[i][0]);
5090                                                 v2 = rsurface.vertex3f + 3 * (surface->num_firstvertex + quadedges[i][1]);
5091 #if 0
5092                                                 Debug_PolygonBegin(NULL, 0);
5093                                                 Debug_PolygonVertex(v1[0], v1[1], v1[2], 0, 0, 1, 0, 0, 1);
5094                                                 Debug_PolygonVertex((v1[0] + v2[0]) * 0.5f + rsurface.normal3f[3 * (surface->num_firstvertex + j)+0] * 4, (v1[1] + v2[1]) * 0.5f + rsurface.normal3f[3 * (surface->num_firstvertex + j)+1], (v1[2] + v2[2]) * 0.5f + rsurface.normal3f[3 * (surface->num_firstvertex + j)+2], 0, 0, 1, 1, 0, 1);
5095                                                 Debug_PolygonVertex(v2[0], v2[1], v2[2], 0, 0, 1, 0, 0, 1);
5096                                                 Debug_PolygonEnd();
5097 #endif
5098                                                 l = VectorDistance2(v1, v2);
5099                                                 // this length bias tries to make sense of square polygons, assuming they are meant to be upright
5100                                                 if (v1[2] != v2[2])
5101                                                         l += (1.0f / 1024.0f);
5102                                                 if (shortest[0].length2 > l || i == 0)
5103                                                 {
5104                                                         shortest[1] = shortest[0];
5105                                                         shortest[0].length2 = l;
5106                                                         shortest[0].v1 = v1;
5107                                                         shortest[0].v2 = v2;
5108                                                 }
5109                                                 else if (shortest[1].length2 > l || i == 1)
5110                                                 {
5111                                                         shortest[1].length2 = l;
5112                                                         shortest[1].v1 = v1;
5113                                                         shortest[1].v2 = v2;
5114                                                 }
5115                                         }
5116                                         VectorLerp(shortest[0].v1, 0.5f, shortest[0].v2, start);
5117                                         VectorLerp(shortest[1].v1, 0.5f, shortest[1].v2, end);
5118 #if 0
5119                                         Debug_PolygonBegin(NULL, 0);
5120                                         Debug_PolygonVertex(start[0], start[1], start[2], 0, 0, 1, 1, 0, 1);
5121                                         Debug_PolygonVertex(center[0] + rsurface.normal3f[3 * (surface->num_firstvertex + j)+0] * 4, center[1] + rsurface.normal3f[3 * (surface->num_firstvertex + j)+1] * 4, center[2] + rsurface.normal3f[3 * (surface->num_firstvertex + j)+2] * 4, 0, 0, 0, 1, 0, 1);
5122                                         Debug_PolygonVertex(end[0], end[1], end[2], 0, 0, 0, 1, 1, 1);
5123                                         Debug_PolygonEnd();
5124 #endif
5125                                         // this calculates the right vector from the shortest edge
5126                                         // and the up vector from the edge midpoints
5127                                         VectorSubtract(shortest[0].v1, shortest[0].v2, right);
5128                                         VectorNormalize(right);
5129                                         VectorSubtract(end, start, up);
5130                                         VectorNormalize(up);
5131                                         // calculate a forward vector to use instead of the original plane normal (this is how we get a new right vector)
5132                                         //VectorSubtract(rsurface.modelorg, center, forward);
5133                                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.forward, forward);
5134                                         VectorNegate(forward, forward);
5135                                         VectorReflect(forward, 0, up, forward);
5136                                         VectorNormalize(forward);
5137                                         CrossProduct(up, forward, newright);
5138                                         VectorNormalize(newright);
5139 #if 0
5140                                         Debug_PolygonBegin(NULL, 0);
5141                                         Debug_PolygonVertex(center[0] + rsurface.normal3f[3 * (surface->num_firstvertex + j)+0] * 8, center[1] + rsurface.normal3f[3 * (surface->num_firstvertex + j)+1] * 8, center[2] + rsurface.normal3f[3 * (surface->num_firstvertex + j)+2] * 8, 0, 0, 1, 0, 0, 1);
5142                                         Debug_PolygonVertex(center[0] + right[0] * 8, center[1] + right[1] * 8, center[2] + right[2] * 8, 0, 0, 0, 1, 0, 1);
5143                                         Debug_PolygonVertex(center[0] + up   [0] * 8, center[1] + up   [1] * 8, center[2] + up   [2] * 8, 0, 0, 0, 0, 1, 1);
5144                                         Debug_PolygonEnd();
5145 #endif
5146 #if 0
5147                                         Debug_PolygonBegin(NULL, 0);
5148                                         Debug_PolygonVertex(center[0] + forward [0] * 8, center[1] + forward [1] * 8, center[2] + forward [2] * 8, 0, 0, 1, 0, 0, 1);
5149                                         Debug_PolygonVertex(center[0] + newright[0] * 8, center[1] + newright[1] * 8, center[2] + newright[2] * 8, 0, 0, 0, 1, 0, 1);
5150                                         Debug_PolygonVertex(center[0] + up      [0] * 8, center[1] + up      [1] * 8, center[2] + up      [2] * 8, 0, 0, 0, 0, 1, 1);
5151                                         Debug_PolygonEnd();
5152 #endif
5153                                         // rotate the quad around the up axis vector, this is made
5154                                         // especially easy by the fact we know the quad is flat,
5155                                         // so we only have to subtract the center position and
5156                                         // measure distance along the right vector, and then
5157                                         // multiply that by the newright vector and add back the
5158                                         // center position
5159                                         // we also need to subtract the old position to undo the
5160                                         // displacement from the center, which we do with a
5161                                         // DotProduct, the subtraction/addition of center is also
5162                                         // optimized into DotProducts here
5163                                         l = DotProduct(right, center);
5164                                         for (i = 0;i < 4;i++)
5165                                         {
5166                                                 v1 = rsurface.vertex3f + 3 * (surface->num_firstvertex + j + i);
5167                                                 f = DotProduct(right, v1) - l;
5168                                                 VectorMAMAM(1, v1, -f, right, f, newright, rsurface.array_deformedvertex3f + (surface->num_firstvertex+i+j) * 3);
5169                                         }
5170                                 }
5171                                 Mod_BuildNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, rsurface.vertex3f, rsurface.modelelement3i + surface->num_firsttriangle * 3, rsurface.array_deformednormal3f, r_smoothnormals_areaweighting.integer);
5172                                 Mod_BuildTextureVectorsFromNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, rsurface.vertex3f, rsurface.modeltexcoordtexture2f, rsurface.array_deformednormal3f, rsurface.modelelement3i + surface->num_firsttriangle * 3, rsurface.array_deformedsvector3f, rsurface.array_deformedtvector3f, r_smoothnormals_areaweighting.integer);
5173                         }
5174                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
5175                         rsurface.vertex3f_bufferobject = 0;
5176                         rsurface.vertex3f_bufferoffset = 0;
5177                         rsurface.svector3f = rsurface.array_deformedsvector3f;
5178                         rsurface.svector3f_bufferobject = 0;
5179                         rsurface.svector3f_bufferoffset = 0;
5180                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
5181                         rsurface.tvector3f_bufferobject = 0;
5182                         rsurface.tvector3f_bufferoffset = 0;
5183                         rsurface.normal3f = rsurface.array_deformednormal3f;
5184                         rsurface.normal3f_bufferobject = 0;
5185                         rsurface.normal3f_bufferoffset = 0;
5186                         break;
5187                 case Q3DEFORM_NORMAL:
5188                         // deform the normals to make reflections wavey
5189                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5190                         {
5191                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5192                                 for (j = 0;j < surface->num_vertices;j++)
5193                                 {
5194                                         float vertex[3];
5195                                         float *normal = (rsurface.array_deformednormal3f  + 3 * surface->num_firstvertex) + j*3;
5196                                         VectorScale((rsurface.vertex3f  + 3 * surface->num_firstvertex) + j*3, 0.98f, vertex);
5197                                         VectorCopy((rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, normal);
5198                                         normal[0] += deform->parms[0] * noise4f(      vertex[0], vertex[1], vertex[2], r_refdef.scene.time * deform->parms[1]);
5199                                         normal[1] += deform->parms[0] * noise4f( 98 + vertex[0], vertex[1], vertex[2], r_refdef.scene.time * deform->parms[1]);
5200                                         normal[2] += deform->parms[0] * noise4f(196 + vertex[0], vertex[1], vertex[2], r_refdef.scene.time * deform->parms[1]);
5201                                         VectorNormalize(normal);
5202                                 }
5203                                 Mod_BuildTextureVectorsFromNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, rsurface.vertex3f, rsurface.modeltexcoordtexture2f, rsurface.array_deformednormal3f, rsurface.modelelement3i + surface->num_firsttriangle * 3, rsurface.array_deformedsvector3f, rsurface.array_deformedtvector3f, r_smoothnormals_areaweighting.integer);
5204                         }
5205                         rsurface.svector3f = rsurface.array_deformedsvector3f;
5206                         rsurface.svector3f_bufferobject = 0;
5207                         rsurface.svector3f_bufferoffset = 0;
5208                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
5209                         rsurface.tvector3f_bufferobject = 0;
5210                         rsurface.tvector3f_bufferoffset = 0;
5211                         rsurface.normal3f = rsurface.array_deformednormal3f;
5212                         rsurface.normal3f_bufferobject = 0;
5213                         rsurface.normal3f_bufferoffset = 0;
5214                         break;
5215                 case Q3DEFORM_WAVE:
5216                         // deform vertex array to make wavey water and flags and such
5217                         waveparms[0] = deform->waveparms[0];
5218                         waveparms[1] = deform->waveparms[1];
5219                         waveparms[2] = deform->waveparms[2];
5220                         waveparms[3] = deform->waveparms[3];
5221                         // this is how a divisor of vertex influence on deformation
5222                         animpos = deform->parms[0] ? 1.0f / deform->parms[0] : 100.0f;
5223                         scale = R_EvaluateQ3WaveFunc(deform->wavefunc, waveparms);
5224                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5225                         {
5226                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5227                                 for (j = 0;j < surface->num_vertices;j++)
5228                                 {
5229                                         float *vertex = (rsurface.array_deformedvertex3f  + 3 * surface->num_firstvertex) + j*3;
5230                                         VectorCopy((rsurface.vertex3f  + 3 * surface->num_firstvertex) + j*3, vertex);
5231                                         // if the wavefunc depends on time, evaluate it per-vertex
5232                                         if (waveparms[3])
5233                                         {
5234                                                 waveparms[2] = deform->waveparms[2] + (vertex[0] + vertex[1] + vertex[2]) * animpos;
5235                                                 scale = R_EvaluateQ3WaveFunc(deform->wavefunc, waveparms);
5236                                         }
5237                                         VectorMA(vertex, scale, (rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, vertex);
5238                                 }
5239                         }
5240                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
5241                         rsurface.vertex3f_bufferobject = 0;
5242                         rsurface.vertex3f_bufferoffset = 0;
5243                         break;
5244                 case Q3DEFORM_BULGE:
5245                         // deform vertex array to make the surface have moving bulges
5246                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5247                         {
5248                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5249                                 for (j = 0;j < surface->num_vertices;j++)
5250                                 {
5251                                         scale = sin((rsurface.modeltexcoordtexture2f[2 * (surface->num_firstvertex + j)] * deform->parms[0] + r_refdef.scene.time * deform->parms[2])) * deform->parms[1];
5252                                         VectorMA(rsurface.vertex3f + 3 * (surface->num_firstvertex + j), scale, rsurface.normal3f + 3 * (surface->num_firstvertex + j), rsurface.array_deformedvertex3f + 3 * (surface->num_firstvertex + j));
5253                                 }
5254                         }
5255                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
5256                         rsurface.vertex3f_bufferobject = 0;
5257                         rsurface.vertex3f_bufferoffset = 0;
5258                         break;
5259                 case Q3DEFORM_MOVE:
5260                         // deform vertex array
5261                         scale = R_EvaluateQ3WaveFunc(deform->wavefunc, deform->waveparms);
5262                         VectorScale(deform->parms, scale, waveparms);
5263                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5264                         {
5265                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5266                                 for (j = 0;j < surface->num_vertices;j++)
5267                                         VectorAdd(rsurface.vertex3f + 3 * (surface->num_firstvertex + j), waveparms, rsurface.array_deformedvertex3f + 3 * (surface->num_firstvertex + j));
5268                         }
5269                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
5270                         rsurface.vertex3f_bufferobject = 0;
5271                         rsurface.vertex3f_bufferoffset = 0;
5272                         break;
5273                 }
5274         }
5275         // generate texcoords based on the chosen texcoord source
5276         switch(rsurface.texture->tcgen.tcgen)
5277         {
5278         default:
5279         case Q3TCGEN_TEXTURE:
5280                 rsurface.texcoordtexture2f               = rsurface.modeltexcoordtexture2f;
5281                 rsurface.texcoordtexture2f_bufferobject  = rsurface.modeltexcoordtexture2f_bufferobject;
5282                 rsurface.texcoordtexture2f_bufferoffset  = rsurface.modeltexcoordtexture2f_bufferoffset;
5283                 break;
5284         case Q3TCGEN_LIGHTMAP:
5285                 rsurface.texcoordtexture2f               = rsurface.modeltexcoordlightmap2f;
5286                 rsurface.texcoordtexture2f_bufferobject  = rsurface.modeltexcoordlightmap2f_bufferobject;
5287                 rsurface.texcoordtexture2f_bufferoffset  = rsurface.modeltexcoordlightmap2f_bufferoffset;
5288                 break;
5289         case Q3TCGEN_VECTOR:
5290                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5291                 {
5292                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5293                         for (j = 0, v1 = rsurface.modelvertex3f + 3 * surface->num_firstvertex, out_tc = rsurface.array_generatedtexcoordtexture2f + 2 * surface->num_firstvertex;j < surface->num_vertices;j++, v1 += 3, out_tc += 2)
5294                         {
5295                                 out_tc[0] = DotProduct(v1, rsurface.texture->tcgen.parms);
5296                                 out_tc[1] = DotProduct(v1, rsurface.texture->tcgen.parms + 3);
5297                         }
5298                 }
5299                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
5300                 rsurface.texcoordtexture2f_bufferobject  = 0;
5301                 rsurface.texcoordtexture2f_bufferoffset  = 0;
5302                 break;
5303         case Q3TCGEN_ENVIRONMENT:
5304                 // make environment reflections using a spheremap
5305                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5306                 {
5307                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5308                         const float *vertex = rsurface.modelvertex3f + 3 * surface->num_firstvertex;
5309                         const float *normal = rsurface.modelnormal3f + 3 * surface->num_firstvertex;
5310                         float *out_tc = rsurface.array_generatedtexcoordtexture2f + 2 * surface->num_firstvertex;
5311                         for (j = 0;j < surface->num_vertices;j++, vertex += 3, normal += 3, out_tc += 2)
5312                         {
5313                                 float l, d, eyedir[3];
5314                                 VectorSubtract(rsurface.modelorg, vertex, eyedir);
5315                                 l = 0.5f / VectorLength(eyedir);
5316                                 d = DotProduct(normal, eyedir)*2;
5317                                 out_tc[0] = 0.5f + (normal[1]*d - eyedir[1])*l;
5318                                 out_tc[1] = 0.5f - (normal[2]*d - eyedir[2])*l;
5319                         }
5320                 }
5321                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
5322                 rsurface.texcoordtexture2f_bufferobject  = 0;
5323                 rsurface.texcoordtexture2f_bufferoffset  = 0;
5324                 break;
5325         }
5326         // the only tcmod that needs software vertex processing is turbulent, so
5327         // check for it here and apply the changes if needed
5328         // and we only support that as the first one
5329         // (handling a mixture of turbulent and other tcmods would be problematic
5330         //  without punting it entirely to a software path)
5331         if (rsurface.texture->tcmods[0].tcmod == Q3TCMOD_TURBULENT)
5332         {
5333                 amplitude = rsurface.texture->tcmods[0].parms[1];
5334                 animpos = rsurface.texture->tcmods[0].parms[2] + r_refdef.scene.time * rsurface.texture->tcmods[0].parms[3];
5335                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5336                 {
5337                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5338                         for (j = 0, v1 = rsurface.modelvertex3f + 3 * surface->num_firstvertex, in_tc = rsurface.texcoordtexture2f + 2 * surface->num_firstvertex, out_tc = rsurface.array_generatedtexcoordtexture2f + 2 * surface->num_firstvertex;j < surface->num_vertices;j++, v1 += 3, in_tc += 2, out_tc += 2)
5339                         {
5340                                 out_tc[0] = in_tc[0] + amplitude * sin(((v1[0] + v1[2]) * 1.0 / 1024.0f + animpos) * M_PI * 2);
5341                                 out_tc[1] = in_tc[1] + amplitude * sin(((v1[1]        ) * 1.0 / 1024.0f + animpos) * M_PI * 2);
5342                         }
5343                 }
5344                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
5345                 rsurface.texcoordtexture2f_bufferobject  = 0;
5346                 rsurface.texcoordtexture2f_bufferoffset  = 0;
5347         }
5348         rsurface.texcoordlightmap2f              = rsurface.modeltexcoordlightmap2f;
5349         rsurface.texcoordlightmap2f_bufferobject = rsurface.modeltexcoordlightmap2f_bufferobject;
5350         rsurface.texcoordlightmap2f_bufferoffset = rsurface.modeltexcoordlightmap2f_bufferoffset;
5351         R_Mesh_VertexPointer(rsurface.vertex3f, rsurface.vertex3f_bufferobject, rsurface.vertex3f_bufferoffset);
5352 }
5353
5354 void RSurf_DrawBatch_Simple(int texturenumsurfaces, msurface_t **texturesurfacelist)
5355 {
5356         int i, j;
5357         const msurface_t *surface = texturesurfacelist[0];
5358         const msurface_t *surface2;
5359         int firstvertex;
5360         int endvertex;
5361         int numvertices;
5362         int numtriangles;
5363         // TODO: lock all array ranges before render, rather than on each surface
5364         if (texturenumsurfaces == 1)
5365         {
5366                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5367                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5368         }
5369         else if (r_batchmode.integer == 2)
5370         {
5371                 #define MAXBATCHTRIANGLES 4096
5372                 int batchtriangles = 0;
5373                 int batchelements[MAXBATCHTRIANGLES*3];
5374                 for (i = 0;i < texturenumsurfaces;i = j)
5375                 {
5376                         surface = texturesurfacelist[i];
5377                         j = i + 1;
5378                         if (surface->num_triangles > MAXBATCHTRIANGLES)
5379                         {
5380                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5381                                 continue;
5382                         }
5383                         memcpy(batchelements, rsurface.modelelement3i + 3 * surface->num_firsttriangle, surface->num_triangles * sizeof(int[3]));
5384                         batchtriangles = surface->num_triangles;
5385                         firstvertex = surface->num_firstvertex;
5386                         endvertex = surface->num_firstvertex + surface->num_vertices;
5387                         for (;j < texturenumsurfaces;j++)
5388                         {
5389                                 surface2 = texturesurfacelist[j];
5390                                 if (batchtriangles + surface2->num_triangles > MAXBATCHTRIANGLES)
5391                                         break;
5392                                 memcpy(batchelements + batchtriangles * 3, rsurface.modelelement3i + 3 * surface2->num_firsttriangle, surface2->num_triangles * sizeof(int[3]));
5393                                 batchtriangles += surface2->num_triangles;
5394                                 firstvertex = min(firstvertex, surface2->num_firstvertex);
5395                                 endvertex = max(endvertex, surface2->num_firstvertex + surface2->num_vertices);
5396                         }
5397                         surface2 = texturesurfacelist[j-1];
5398                         numvertices = endvertex - firstvertex;
5399                         R_Mesh_Draw(firstvertex, numvertices, 0, batchtriangles, batchelements, NULL, 0, 0);
5400                 }
5401         }
5402         else if (r_batchmode.integer == 1)
5403         {
5404                 for (i = 0;i < texturenumsurfaces;i = j)
5405                 {
5406                         surface = texturesurfacelist[i];
5407                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5408                                 if (texturesurfacelist[j] != surface2)
5409                                         break;
5410                         surface2 = texturesurfacelist[j-1];
5411                         numvertices = surface2->num_firstvertex + surface2->num_vertices - surface->num_firstvertex;
5412                         numtriangles = surface2->num_firsttriangle + surface2->num_triangles - surface->num_firsttriangle;
5413                         GL_LockArrays(surface->num_firstvertex, numvertices);
5414                         R_Mesh_Draw(surface->num_firstvertex, numvertices, surface->num_firsttriangle, numtriangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5415                 }
5416         }
5417         else
5418         {
5419                 for (i = 0;i < texturenumsurfaces;i++)
5420                 {
5421                         surface = texturesurfacelist[i];
5422                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5423                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5424                 }
5425         }
5426 }
5427
5428 static void RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(int texturenumsurfaces, msurface_t **texturesurfacelist, int lightmaptexunit, int deluxemaptexunit, int refractiontexunit, int reflectiontexunit)
5429 {
5430         int i, planeindex, vertexindex;
5431         float d, bestd;
5432         vec3_t vert;
5433         const float *v;
5434         r_waterstate_waterplane_t *p, *bestp;
5435         msurface_t *surface;
5436         if (r_waterstate.renderingscene)
5437                 return;
5438         for (i = 0;i < texturenumsurfaces;i++)
5439         {
5440                 surface = texturesurfacelist[i];
5441                 if (lightmaptexunit >= 0)
5442                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5443                 if (deluxemaptexunit >= 0)
5444                         R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5445                 // pick the closest matching water plane
5446                 bestd = 0;
5447                 bestp = NULL;
5448                 for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
5449                 {
5450                         d = 0;
5451                         for (vertexindex = 0, v = rsurface.modelvertex3f + surface->num_firstvertex * 3;vertexindex < surface->num_vertices;vertexindex++, v += 3)
5452                         {
5453                                 Matrix4x4_Transform(&rsurface.matrix, v, vert);
5454                                 d += fabs(PlaneDiff(vert, &p->plane));
5455                         }
5456                         if (bestd > d || !bestp)
5457                         {
5458                                 bestd = d;
5459                                 bestp = p;
5460                         }
5461                 }
5462                 if (bestp)
5463                 {
5464                         if (refractiontexunit >= 0)
5465                                 R_Mesh_TexBind(refractiontexunit, R_GetTexture(bestp->texture_refraction));
5466                         if (reflectiontexunit >= 0)
5467                                 R_Mesh_TexBind(reflectiontexunit, R_GetTexture(bestp->texture_reflection));
5468                 }
5469                 else
5470                 {
5471                         if (refractiontexunit >= 0)
5472                                 R_Mesh_TexBind(refractiontexunit, R_GetTexture(r_texture_black));
5473                         if (reflectiontexunit >= 0)
5474                                 R_Mesh_TexBind(reflectiontexunit, R_GetTexture(r_texture_black));
5475                 }
5476                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5477                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5478         }
5479 }
5480
5481 static void RSurf_DrawBatch_WithLightmapSwitching(int texturenumsurfaces, msurface_t **texturesurfacelist, int lightmaptexunit, int deluxemaptexunit)
5482 {
5483         int i;
5484         int j;
5485         const msurface_t *surface = texturesurfacelist[0];
5486         const msurface_t *surface2;
5487         int firstvertex;
5488         int endvertex;
5489         int numvertices;
5490         int numtriangles;
5491         // TODO: lock all array ranges before render, rather than on each surface
5492         if (texturenumsurfaces == 1)
5493         {
5494                 R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5495                 if (deluxemaptexunit >= 0)
5496                         R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5497                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5498                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5499         }
5500         else if (r_batchmode.integer == 2)
5501         {
5502                 #define MAXBATCHTRIANGLES 4096
5503                 int batchtriangles = 0;
5504                 int batchelements[MAXBATCHTRIANGLES*3];
5505                 for (i = 0;i < texturenumsurfaces;i = j)
5506                 {
5507                         surface = texturesurfacelist[i];
5508                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5509                         if (deluxemaptexunit >= 0)
5510                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5511                         j = i + 1;
5512                         if (surface->num_triangles > MAXBATCHTRIANGLES)
5513                         {
5514                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5515                                 continue;
5516                         }
5517                         memcpy(batchelements, rsurface.modelelement3i + 3 * surface->num_firsttriangle, surface->num_triangles * sizeof(int[3]));
5518                         batchtriangles = surface->num_triangles;
5519                         firstvertex = surface->num_firstvertex;
5520                         endvertex = surface->num_firstvertex + surface->num_vertices;
5521                         for (;j < texturenumsurfaces;j++)
5522                         {
5523                                 surface2 = texturesurfacelist[j];
5524                                 if (surface2->lightmaptexture != surface->lightmaptexture || batchtriangles + surface2->num_triangles > MAXBATCHTRIANGLES)
5525                                         break;
5526                                 memcpy(batchelements + batchtriangles * 3, rsurface.modelelement3i + 3 * surface2->num_firsttriangle, surface2->num_triangles * sizeof(int[3]));
5527                                 batchtriangles += surface2->num_triangles;
5528                                 firstvertex = min(firstvertex, surface2->num_firstvertex);
5529                                 endvertex = max(endvertex, surface2->num_firstvertex + surface2->num_vertices);
5530                         }
5531                         surface2 = texturesurfacelist[j-1];
5532                         numvertices = endvertex - firstvertex;
5533                         R_Mesh_Draw(firstvertex, numvertices, 0, batchtriangles, batchelements, NULL, 0, 0);
5534                 }
5535         }
5536         else if (r_batchmode.integer == 1)
5537         {
5538 #if 0
5539                 Con_Printf("%s batch sizes ignoring lightmap:", rsurface.texture->name);
5540                 for (i = 0;i < texturenumsurfaces;i = j)
5541                 {
5542                         surface = texturesurfacelist[i];
5543                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5544                                 if (texturesurfacelist[j] != surface2)
5545                                         break;
5546                         Con_Printf(" %i", j - i);
5547                 }
5548                 Con_Printf("\n");
5549                 Con_Printf("%s batch sizes honoring lightmap:", rsurface.texture->name);
5550 #endif
5551                 for (i = 0;i < texturenumsurfaces;i = j)
5552                 {
5553                         surface = texturesurfacelist[i];
5554                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5555                         if (deluxemaptexunit >= 0)
5556                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5557                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5558                                 if (texturesurfacelist[j] != surface2 || texturesurfacelist[j]->lightmaptexture != surface->lightmaptexture)
5559                                         break;
5560 #if 0
5561                         Con_Printf(" %i", j - i);
5562 #endif
5563                         surface2 = texturesurfacelist[j-1];
5564                         numvertices = surface2->num_firstvertex + surface2->num_vertices - surface->num_firstvertex;
5565                         numtriangles = surface2->num_firsttriangle + surface2->num_triangles - surface->num_firsttriangle;
5566                         GL_LockArrays(surface->num_firstvertex, numvertices);
5567                         R_Mesh_Draw(surface->num_firstvertex, numvertices, surface->num_firsttriangle, numtriangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5568                 }
5569 #if 0
5570                 Con_Printf("\n");
5571 #endif
5572         }
5573         else
5574         {
5575                 for (i = 0;i < texturenumsurfaces;i++)
5576                 {
5577                         surface = texturesurfacelist[i];
5578                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5579                         if (deluxemaptexunit >= 0)
5580                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5581                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5582                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5583                 }
5584         }
5585 }
5586
5587 static void RSurf_DrawBatch_ShowSurfaces(int texturenumsurfaces, msurface_t **texturesurfacelist)
5588 {
5589         int j;
5590         int texturesurfaceindex;
5591         if (r_showsurfaces.integer == 2)
5592         {
5593                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5594                 {
5595                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5596                         for (j = 0;j < surface->num_triangles;j++)
5597                         {
5598                                 float f = ((j + surface->num_firsttriangle) & 31) * (1.0f / 31.0f) * r_refdef.view.colorscale;
5599                                 GL_Color(f, f, f, 1);
5600                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle + j, 1, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5601                         }
5602                 }
5603         }
5604         else
5605         {
5606                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5607                 {
5608                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5609                         int k = (int)(((size_t)surface) / sizeof(msurface_t));
5610                         GL_Color((k & 15) * (1.0f / 16.0f) * r_refdef.view.colorscale, ((k >> 4) & 15) * (1.0f / 16.0f) * r_refdef.view.colorscale, ((k >> 8) & 15) * (1.0f / 16.0f) * r_refdef.view.colorscale, 1);
5611                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5612                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, rsurface.modelelement3i, rsurface.modelelement3s, rsurface.modelelement3i_bufferobject, rsurface.modelelement3s_bufferobject);
5613                 }
5614         }
5615 }
5616
5617 static void RSurf_DrawBatch_GL11_ApplyFog(int texturenumsurfaces, msurface_t **texturesurfacelist)
5618 {
5619         int texturesurfaceindex;
5620         int i;
5621         float f;
5622         float *v, *c, *c2;
5623         if (rsurface.lightmapcolor4f)
5624         {
5625                 // generate color arrays for the surfaces in this list
5626                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5627                 {
5628                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5629                         for (i = 0, v = (rsurface.vertex3f + 3 * surface->num_firstvertex), c = (rsurface.lightmapcolor4f + 4 * surface->num_firstvertex), c2 = (rsurface.array_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4, c2 += 4)
5630                         {
5631                                 f = FogPoint_Model(v);
5632                                 c2[0] = c[0] * f;
5633                                 c2[1] = c[1] * f;
5634                                 c2[2] = c[2] * f;
5635                                 c2[3] = c[3];
5636                         }
5637                 }
5638         }
5639         else
5640         {
5641                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5642                 {
5643                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5644                         for (i = 0, v = (rsurface.vertex3f + 3 * surface->num_firstvertex), c2 = (rsurface.array_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c2 += 4)
5645                         {
5646                                 f = FogPoint_Model(v);
5647                                 c2[0] = f;
5648                                 c2[1] = f;
5649                                 c2[2] = f;
5650                                 c2[3] = 1;
5651                         }
5652                 }
5653         }
5654         rsurface.lightmapcolor4f = rsurface.array_color4f;
5655         rsurface.lightmapcolor4f_bufferobject = 0;
5656         rsurface.lightmapcolor4f_bufferoffset = 0;
5657 }
5658
5659 static void RSurf_DrawBatch_GL11_ApplyColor(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a)
5660 {
5661         int texturesurfaceindex;
5662         int i;
5663         float *c, *c2;
5664         if (!rsurface.lightmapcolor4f)
5665                 return;
5666         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5667         {
5668                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5669                 for (i = 0, c = (rsurface.lightmapcolor4f + 4 * surface->num_firstvertex), c2 = (rsurface.array_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, c += 4, c2 += 4)
5670                 {
5671                         c2[0] = c[0] * r;
5672                         c2[1] = c[1] * g;
5673                         c2[2] = c[2] * b;
5674                         c2[3] = c[3] * a;
5675                 }
5676         }
5677         rsurface.lightmapcolor4f = rsurface.array_color4f;
5678         rsurface.lightmapcolor4f_bufferobject = 0;
5679         rsurface.lightmapcolor4f_bufferoffset = 0;
5680 }
5681
5682 static void RSurf_DrawBatch_GL11_Lightmap(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5683 {
5684         // TODO: optimize
5685         rsurface.lightmapcolor4f = NULL;
5686         rsurface.lightmapcolor4f_bufferobject = 0;
5687         rsurface.lightmapcolor4f_bufferoffset = 0;
5688         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5689         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5690         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5691         GL_Color(r, g, b, a);
5692         RSurf_DrawBatch_WithLightmapSwitching(texturenumsurfaces, texturesurfacelist, 0, -1);
5693 }
5694
5695 static void RSurf_DrawBatch_GL11_Unlit(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5696 {
5697         // TODO: optimize applyfog && applycolor case
5698         // just apply fog if necessary, and tint the fog color array if necessary
5699         rsurface.lightmapcolor4f = NULL;
5700         rsurface.lightmapcolor4f_bufferobject = 0;
5701         rsurface.lightmapcolor4f_bufferoffset = 0;
5702         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5703         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5704         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5705         GL_Color(r, g, b, a);
5706         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5707 }
5708
5709 static void RSurf_DrawBatch_GL11_VertexColor(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5710 {
5711         int texturesurfaceindex;
5712         int i;
5713         float *c;
5714         // TODO: optimize
5715         if (texturesurfacelist[0]->lightmapinfo)
5716         {
5717                 // generate color arrays for the surfaces in this list
5718                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5719                 {
5720                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5721                         for (i = 0, c = rsurface.array_color4f + 4 * surface->num_firstvertex;i < surface->num_vertices;i++, c += 4)
5722                         {
5723                                 if (surface->lightmapinfo->samples)
5724                                 {
5725                                         const unsigned char *lm = surface->lightmapinfo->samples + (rsurface.modellightmapoffsets + surface->num_firstvertex)[i];
5726                                         float scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[0]] * (1.0f / 32768.0f);
5727                                         VectorScale(lm, scale, c);
5728                                         if (surface->lightmapinfo->styles[1] != 255)
5729                                         {
5730                                                 int size3 = ((surface->lightmapinfo->extents[0]>>4)+1)*((surface->lightmapinfo->extents[1]>>4)+1)*3;
5731                                                 lm += size3;
5732                                                 scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[1]] * (1.0f / 32768.0f);
5733                                                 VectorMA(c, scale, lm, c);
5734                                                 if (surface->lightmapinfo->styles[2] != 255)
5735                                                 {
5736                                                         lm += size3;
5737                                                         scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[2]] * (1.0f / 32768.0f);
5738                                                         VectorMA(c, scale, lm, c);
5739                                                         if (surface->lightmapinfo->styles[3] != 255)
5740                                                         {
5741                                                                 lm += size3;
5742                                                                 scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[3]] * (1.0f / 32768.0f);
5743                                                                 VectorMA(c, scale, lm, c);
5744                                                         }
5745                                                 }
5746                                         }
5747                                 }
5748                                 else
5749                                         VectorClear(c);
5750                                 c[3] = 1;
5751                         }
5752                 }
5753                 rsurface.lightmapcolor4f = rsurface.array_color4f;
5754                 rsurface.lightmapcolor4f_bufferobject = 0;
5755                 rsurface.lightmapcolor4f_bufferoffset = 0;
5756         }
5757         else
5758         {
5759                 rsurface.lightmapcolor4f = rsurface.modellightmapcolor4f;
5760                 rsurface.lightmapcolor4f_bufferobject = rsurface.modellightmapcolor4f_bufferobject;
5761                 rsurface.lightmapcolor4f_bufferoffset = rsurface.modellightmapcolor4f_bufferoffset;
5762         }
5763         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5764         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5765         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5766         GL_Color(r, g, b, a);
5767         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5768 }
5769
5770 static void RSurf_DrawBatch_GL11_VertexShade(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5771 {
5772         int texturesurfaceindex;
5773         int i;
5774         float f;
5775         float *v, *c, *c2;
5776         vec3_t ambientcolor;
5777         vec3_t diffusecolor;
5778         vec3_t lightdir;
5779         // TODO: optimize
5780         // model lighting
5781         VectorCopy(rsurface.modellight_lightdir, lightdir);
5782         f = 0.5f * r_refdef.lightmapintensity;
5783         ambientcolor[0] = rsurface.modellight_ambient[0] * r * f;
5784         ambientcolor[1] = rsurface.modellight_ambient[1] * g * f;
5785         ambientcolor[2] = rsurface.modellight_ambient[2] * b * f;
5786         diffusecolor[0] = rsurface.modellight_diffuse[0] * r * f;
5787         diffusecolor[1] = rsurface.modellight_diffuse[1] * g * f;
5788         diffusecolor[2] = rsurface.modellight_diffuse[2] * b * f;
5789         if (VectorLength2(diffusecolor) > 0)
5790         {
5791                 // generate color arrays for the surfaces in this list
5792                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5793                 {
5794                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5795                         int numverts = surface->num_vertices;
5796                         v = rsurface.vertex3f + 3 * surface->num_firstvertex;
5797                         c2 = rsurface.normal3f + 3 * surface->num_firstvertex;
5798                         c = rsurface.array_color4f + 4 * surface->num_firstvertex;
5799                         // q3-style directional shading
5800                         for (i = 0;i < numverts;i++, v += 3, c2 += 3, c += 4)
5801                         {
5802                                 if ((f = DotProduct(c2, lightdir)) > 0)
5803                                         VectorMA(ambientcolor, f, diffusecolor, c);
5804                                 else
5805                                         VectorCopy(ambientcolor, c);
5806                                 c[3] = a;
5807                         }
5808                 }
5809                 r = 1;
5810                 g = 1;
5811                 b = 1;
5812                 a = 1;
5813                 applycolor = false;
5814                 rsurface.lightmapcolor4f = rsurface.array_color4f;
5815                 rsurface.lightmapcolor4f_bufferobject = 0;
5816                 rsurface.lightmapcolor4f_bufferoffset = 0;
5817         }
5818         else
5819         {
5820                 r = ambientcolor[0];
5821                 g = ambientcolor[1];
5822                 b = ambientcolor[2];
5823                 rsurface.lightmapcolor4f = NULL;
5824                 rsurface.lightmapcolor4f_bufferobject = 0;
5825                 rsurface.lightmapcolor4f_bufferoffset = 0;
5826         }
5827         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5828         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5829         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5830         GL_Color(r, g, b, a);
5831         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5832 }
5833
5834 void RSurf_SetupDepthAndCulling(void)
5835 {
5836         // submodels are biased to avoid z-fighting with world surfaces that they
5837         // may be exactly overlapping (avoids z-fighting artifacts on certain
5838         // doors and things in Quake maps)
5839         GL_DepthRange(0, (rsurface.texture->currentmaterialflags & MATERIALFLAG_SHORTDEPTHRANGE) ? 0.0625 : 1);
5840         GL_PolygonOffset(rsurface.basepolygonfactor + rsurface.texture->biaspolygonfactor, rsurface.basepolygonoffset + rsurface.texture->biaspolygonoffset);
5841         GL_DepthTest(!(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST));
5842         GL_CullFace((rsurface.texture->currentmaterialflags & MATERIALFLAG_NOCULLFACE) ? GL_NONE : r_refdef.view.cullface_back);
5843 }
5844
5845 static void R_DrawTextureSurfaceList_Sky(int texturenumsurfaces, msurface_t **texturesurfacelist)
5846 {
5847         // transparent sky would be ridiculous
5848         if (rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED)
5849                 return;
5850         R_SetupGenericShader(false);
5851         if (skyrendernow)
5852         {
5853                 skyrendernow = false;
5854                 // we have to force off the water clipping plane while rendering sky
5855                 R_SetupView(false);
5856                 R_Sky();
5857                 R_SetupView(true);
5858                 // restore entity matrix
5859                 R_Mesh_Matrix(&rsurface.matrix);
5860         }
5861         RSurf_SetupDepthAndCulling();
5862         GL_DepthMask(true);
5863         // LordHavoc: HalfLife maps have freaky skypolys so don't use
5864         // skymasking on them, and Quake3 never did sky masking (unlike
5865         // software Quake and software Quake2), so disable the sky masking
5866         // in Quake3 maps as it causes problems with q3map2 sky tricks,
5867         // and skymasking also looks very bad when noclipping outside the
5868         // level, so don't use it then either.
5869         if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->type == mod_brushq1 && r_q1bsp_skymasking.integer && !r_refdef.viewcache.world_novis)
5870         {
5871                 GL_Color(r_refdef.fogcolor[0], r_refdef.fogcolor[1], r_refdef.fogcolor[2], 1);
5872                 R_Mesh_ColorPointer(NULL, 0, 0);
5873                 R_Mesh_ResetTextureState();
5874                 if (skyrendermasked)
5875                 {
5876                         R_SetupDepthOrShadowShader();
5877                         // depth-only (masking)
5878                         GL_ColorMask(0,0,0,0);
5879                         // just to make sure that braindead drivers don't draw
5880                         // anything despite that colormask...
5881                         GL_BlendFunc(GL_ZERO, GL_ONE);
5882                 }
5883                 else
5884                 {
5885                         R_SetupGenericShader(false);
5886                         // fog sky
5887                         GL_BlendFunc(GL_ONE, GL_ZERO);
5888                 }
5889                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
5890                 RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5891                 if (skyrendermasked)
5892                         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
5893         }
5894         R_Mesh_ResetTextureState();
5895         GL_Color(1, 1, 1, 1);
5896 }
5897
5898 static void R_DrawTextureSurfaceList_GL20(int texturenumsurfaces, msurface_t **texturesurfacelist, qboolean writedepth)
5899 {
5900         if (r_waterstate.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION)))
5901                 return;
5902
5903         R_Mesh_TexMatrix(0, &rsurface.texture->currenttexmatrix);
5904         R_Mesh_TexBind(GL20TU_NORMAL, R_GetTexture(rsurface.texture->currentskinframe->nmap));
5905         R_Mesh_TexBind(GL20TU_COLOR, R_GetTexture(rsurface.texture->basetexture));
5906         R_Mesh_TexBind(GL20TU_GLOSS, R_GetTexture(rsurface.texture->glosstexture));
5907         R_Mesh_TexBind(GL20TU_GLOW, R_GetTexture(rsurface.texture->currentskinframe->glow));
5908         if (rsurface.texture->backgroundcurrentskinframe)
5909         {
5910                 R_Mesh_TexBind(GL20TU_SECONDARY_NORMAL, R_GetTexture(rsurface.texture->backgroundcurrentskinframe->nmap));
5911                 R_Mesh_TexBind(GL20TU_SECONDARY_COLOR, R_GetTexture(rsurface.texture->backgroundbasetexture));
5912                 R_Mesh_TexBind(GL20TU_SECONDARY_GLOSS, R_GetTexture(rsurface.texture->backgroundglosstexture));
5913                 R_Mesh_TexBind(GL20TU_SECONDARY_GLOW, R_GetTexture(rsurface.texture->backgroundcurrentskinframe->glow));
5914         }
5915         if(rsurface.texture->colormapping)
5916         {
5917                 R_Mesh_TexBind(GL20TU_PANTS, R_GetTexture(rsurface.texture->currentskinframe->pants));
5918                 R_Mesh_TexBind(GL20TU_SHIRT, R_GetTexture(rsurface.texture->currentskinframe->shirt));
5919         }
5920         R_Mesh_TexBind(GL20TU_FOGMASK, R_GetTexture(r_texture_fogattenuation));
5921         if ((rsurface.uselightmaptexture || (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)) && !(rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND))
5922                 R_Mesh_ColorPointer(NULL, 0, 0);
5923         else
5924                 R_Mesh_ColorPointer(rsurface.modellightmapcolor4f, rsurface.modellightmapcolor4f_bufferobject, rsurface.modellightmapcolor4f_bufferoffset);
5925
5926         if (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
5927         {
5928                 // render background
5929                 GL_BlendFunc(GL_ONE, GL_ZERO);
5930                 GL_DepthMask(true);
5931                 GL_AlphaTest(false);
5932
5933                 GL_Color(1, 1, 1, 1);
5934                 R_Mesh_ColorPointer(NULL, 0, 0);
5935
5936                 R_SetupSurfaceShader(vec3_origin, rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT, 1, 1, rsurface.texture->specularscale, RSURFPASS_BACKGROUND);
5937                 if (r_glsl_permutation)
5938                 {
5939                         RSurf_PrepareVerticesForBatch(true, true, texturenumsurfaces, texturesurfacelist);
5940                         R_Mesh_TexCoordPointer(0, 2, rsurface.texcoordtexture2f, rsurface.texcoordtexture2f_bufferobject, rsurface.texcoordtexture2f_bufferoffset);
5941                         R_Mesh_TexCoordPointer(1, 3, rsurface.svector3f, rsurface.svector3f_bufferobject, rsurface.svector3f_bufferoffset);
5942                         R_Mesh_TexCoordPointer(2, 3, rsurface.tvector3f, rsurface.tvector3f_bufferobject, rsurface.tvector3f_bufferoffset);
5943                         R_Mesh_TexCoordPointer(3, 3, rsurface.normal3f, rsurface.normal3f_bufferobject, rsurface.normal3f_bufferoffset);
5944                         R_Mesh_TexCoordPointer(4, 2, rsurface.modeltexcoordlightmap2f, rsurface.modeltexcoordlightmap2f_bufferobject, rsurface.modeltexcoordlightmap2f_bufferoffset);
5945                         RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(texturenumsurfaces, texturesurfacelist, -1, -1, r_glsl_permutation->loc_Texture_Refraction >= 0 ? GL20TU_REFRACTION : -1, r_glsl_permutation->loc_Texture_Reflection >= 0 ? GL20TU_REFLECTION : -1);
5946                 }
5947                 GL_LockArrays(0, 0);
5948
5949                 GL_BlendFunc(rsurface.texture->currentlayers[0].blendfunc1, rsurface.texture->currentlayers[0].blendfunc2);
5950                 GL_DepthMask(false);
5951                 if ((rsurface.uselightmaptexture || (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)) && !(rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND))
5952                         R_Mesh_ColorPointer(NULL, 0, 0);
5953                 else
5954                         R_Mesh_ColorPointer(rsurface.modellightmapcolor4f, rsurface.modellightmapcolor4f_bufferobject, rsurface.modellightmapcolor4f_bufferoffset);
5955                 R_Mesh_TexBind(GL20TU_REFRACTION, R_GetTexture(r_texture_white)); // changed per surface
5956                 R_Mesh_TexBind(GL20TU_REFLECTION, R_GetTexture(r_texture_white)); // changed per surface
5957         }
5958
5959         R_SetupSurfaceShader(vec3_origin, rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT, 1, 1, rsurface.texture->specularscale, RSURFPASS_BASE);
5960         if (!r_glsl_permutation)
5961                 return;
5962
5963         RSurf_PrepareVerticesForBatch(r_glsl_permutation->loc_Texture_Normal >= 0 || r_glsl_permutation->loc_LightDir >= 0, r_glsl_permutation->loc_Texture_Normal >= 0, texturenumsurfaces, texturesurfacelist);
5964         R_Mesh_TexCoordPointer(0, 2, rsurface.texcoordtexture2f, rsurface.texcoordtexture2f_bufferobject, rsurface.texcoordtexture2f_bufferoffset);
5965         R_Mesh_TexCoordPointer(1, 3, rsurface.svector3f, rsurface.svector3f_bufferobject, rsurface.svector3f_bufferoffset);
5966         R_Mesh_TexCoordPointer(2, 3, rsurface.tvector3f, rsurface.tvector3f_bufferobject, rsurface.tvector3f_bufferoffset);
5967         R_Mesh_TexCoordPointer(3, 3, rsurface.normal3f, rsurface.normal3f_bufferobject, rsurface.normal3f_bufferoffset);
5968         R_Mesh_TexCoordPointer(4, 2, rsurface.modeltexcoordlightmap2f, rsurface.modeltexcoordlightmap2f_bufferobject, rsurface.modeltexcoordlightmap2f_bufferoffset);
5969
5970         if (r_glsl_permutation->loc_Texture_Refraction >= 0)
5971         {
5972                 GL_BlendFunc(GL_ONE, GL_ZERO);
5973                 GL_DepthMask(true);
5974                 GL_AlphaTest(false);
5975         }
5976         else
5977         {
5978                 GL_BlendFunc(rsurface.texture->currentlayers[0].blendfunc1, rsurface.texture->currentlayers[0].blendfunc2);
5979                 GL_DepthMask(writedepth && !(rsurface.texture->currentmaterialflags & MATERIALFLAG_BLENDED));
5980                 GL_AlphaTest((rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST) != 0);
5981         }
5982
5983         if (rsurface.uselightmaptexture && !(rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT))
5984         {
5985                 if (r_glsl_permutation->loc_Texture_Refraction >= 0 || r_glsl_permutation->loc_Texture_Reflection >= 0)
5986                         RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(texturenumsurfaces, texturesurfacelist, GL20TU_LIGHTMAP, r_glsl_permutation->loc_Texture_Deluxemap >= 0 ? GL20TU_DELUXEMAP : -1, r_glsl_permutation->loc_Texture_Refraction >= 0 ? GL20TU_REFRACTION : -1, r_glsl_permutation->loc_Texture_Reflection >= 0 ? GL20TU_REFLECTION : -1);
5987                 else
5988                         RSurf_DrawBatch_WithLightmapSwitching(texturenumsurfaces, texturesurfacelist, GL20TU_LIGHTMAP, r_glsl_permutation->loc_Texture_Deluxemap >= 0 ? GL20TU_DELUXEMAP : -1);
5989         }
5990         else
5991         {
5992                 if (r_glsl_permutation->loc_Texture_Refraction >= 0 || r_glsl_permutation->loc_Texture_Reflection >= 0)
5993                         RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(texturenumsurfaces, texturesurfacelist, -1, -1, r_glsl_permutation->loc_Texture_Refraction >= 0 ? GL20TU_REFRACTION : -1, r_glsl_permutation->loc_Texture_Reflection >= 0 ? GL20TU_REFLECTION : -1);
5994                 else
5995                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5996         }
5997         GL_LockArrays(0, 0);
5998 }
5999
6000 static void R_DrawTextureSurfaceList_GL13(int texturenumsurfaces, msurface_t **texturesurfacelist, qboolean writedepth)
6001 {
6002         // OpenGL 1.3 path - anything not completely ancient
6003         int texturesurfaceindex;
6004         qboolean applycolor;
6005         qboolean applyfog;
6006         rmeshstate_t m;
6007         int layerindex;
6008         const texturelayer_t *layer;
6009         RSurf_PrepareVerticesForBatch(true, false, texturenumsurfaces, texturesurfacelist);
6010
6011         for (layerindex = 0, layer = rsurface.texture->currentlayers;layerindex < rsurface.texture->currentnumlayers;layerindex++, layer++)
6012         {
6013                 vec4_t layercolor;
6014                 int layertexrgbscale;
6015                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
6016                 {
6017                         if (layerindex == 0)
6018                                 GL_AlphaTest(true);
6019                         else
6020                         {
6021                                 GL_AlphaTest(false);
6022                                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
6023                         }
6024                 }
6025                 GL_DepthMask(layer->depthmask && writedepth);
6026                 GL_BlendFunc(layer->blendfunc1, layer->blendfunc2);
6027                 if (layer->color[0] > 2 || layer->color[1] > 2 || layer->color[2] > 2)
6028                 {
6029                         layertexrgbscale = 4;
6030                         VectorScale(layer->color, 0.25f, layercolor);
6031                 }
6032                 else if (layer->color[0] > 1 || layer->color[1] > 1 || layer->color[2] > 1)
6033                 {
6034                         layertexrgbscale = 2;
6035                         VectorScale(layer->color, 0.5f, layercolor);
6036                 }
6037                 else
6038                 {
6039                         layertexrgbscale = 1;
6040                         VectorScale(layer->color, 1.0f, layercolor);
6041                 }
6042                 layercolor[3] = layer->color[3];
6043                 applycolor = layercolor[0] != 1 || layercolor[1] != 1 || layercolor[2] != 1 || layercolor[3] != 1;
6044                 R_Mesh_ColorPointer(NULL, 0, 0);
6045                 applyfog = (layer->flags & TEXTURELAYERFLAG_FOGDARKEN) != 0;
6046                 switch (layer->type)
6047                 {
6048                 case TEXTURELAYERTYPE_LITTEXTURE:
6049                         memset(&m, 0, sizeof(m));
6050                         m.tex[0] = R_GetTexture(r_texture_white);
6051                         m.pointer_texcoord[0] = rsurface.modeltexcoordlightmap2f;
6052                         m.pointer_texcoord_bufferobject[0] = rsurface.modeltexcoordlightmap2f_bufferobject;
6053                         m.pointer_texcoord_bufferoffset[0] = rsurface.modeltexcoordlightmap2f_bufferoffset;
6054                         m.tex[1] = R_GetTexture(layer->texture);
6055                         m.texmatrix[1] = layer->texmatrix;
6056                         m.texrgbscale[1] = layertexrgbscale;
6057                         m.pointer_texcoord[1] = rsurface.texcoordtexture2f;
6058                         m.pointer_texcoord_bufferobject[1] = rsurface.texcoordtexture2f_bufferobject;
6059                         m.pointer_texcoord_bufferoffset[1] = rsurface.texcoordtexture2f_bufferoffset;
6060                         R_Mesh_TextureState(&m);
6061                         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
6062                                 RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
6063                         else if (rsurface.uselightmaptexture)
6064                                 RSurf_DrawBatch_GL11_Lightmap(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
6065                         else
6066                                 RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
6067                         break;
6068                 case TEXTURELAYERTYPE_TEXTURE:
6069                         memset(&m, 0, sizeof(m));
6070                         m.tex[0] = R_GetTexture(layer->texture);
6071                         m.texmatrix[0] = layer->texmatrix;
6072                         m.texrgbscale[0] = layertexrgbscale;
6073                         m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
6074                         m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
6075                         m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
6076                         R_Mesh_TextureState(&m);
6077                         RSurf_DrawBatch_GL11_Unlit(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
6078                         break;
6079                 case TEXTURELAYERTYPE_FOG:
6080                         memset(&m, 0, sizeof(m));
6081                         m.texrgbscale[0] = layertexrgbscale;
6082                         if (layer->texture)
6083                         {
6084                                 m.tex[0] = R_GetTexture(layer->texture);
6085                                 m.texmatrix[0] = layer->texmatrix;
6086                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
6087                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
6088                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
6089                         }
6090                         R_Mesh_TextureState(&m);
6091                         // generate a color array for the fog pass
6092                         R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
6093                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
6094                         {
6095                                 int i;
6096                                 float f, *v, *c;
6097                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
6098                                 for (i = 0, v = (rsurface.vertex3f + 3 * surface->num_firstvertex), c = (rsurface.array_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
6099                                 {
6100                                         f = 1 - FogPoint_Model(v);
6101                                         c[0] = layercolor[0];
6102                                         c[1] = layercolor[1];
6103                                         c[2] = layercolor[2];
6104                                         c[3] = f * layercolor[3];
6105                                 }
6106                         }
6107                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
6108                         break;
6109                 default:
6110                         Con_Printf("R_DrawTextureSurfaceList: unknown layer type %i\n", layer->type);
6111                 }
6112                 GL_LockArrays(0, 0);
6113         }
6114         CHECKGLERROR
6115         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
6116         {
6117                 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
6118                 GL_AlphaTest(false);
6119         }
6120 }
6121
6122 static void R_DrawTextureSurfaceList_GL11(int texturenumsurfaces, msurface_t **texturesurfacelist, qboolean writedepth)
6123 {
6124         // OpenGL 1.1 - crusty old voodoo path
6125         int texturesurfaceindex;
6126         qboolean applyfog;
6127         rmeshstate_t m;
6128         int layerindex;
6129         const texturelayer_t *layer;
6130         RSurf_PrepareVerticesForBatch(true, false, texturenumsurfaces, texturesurfacelist);
6131
6132         for (layerindex = 0, layer = rsurface.texture->currentlayers;layerindex < rsurface.texture->currentnumlayers;layerindex++, layer++)
6133         {
6134                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
6135                 {
6136                         if (layerindex == 0)
6137                                 GL_AlphaTest(true);
6138                         else
6139                         {
6140                                 GL_AlphaTest(false);
6141                                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
6142                         }
6143                 }
6144                 GL_DepthMask(layer->depthmask && writedepth);
6145                 GL_BlendFunc(layer->blendfunc1, layer->blendfunc2);
6146                 R_Mesh_ColorPointer(NULL, 0, 0);
6147                 applyfog = (layer->flags & TEXTURELAYERFLAG_FOGDARKEN) != 0;
6148                 switch (layer->type)
6149                 {
6150                 case TEXTURELAYERTYPE_LITTEXTURE:
6151                         if (layer->blendfunc1 == GL_ONE && layer->blendfunc2 == GL_ZERO)
6152                         {
6153                                 // two-pass lit texture with 2x rgbscale
6154                                 // first the lightmap pass
6155                                 memset(&m, 0, sizeof(m));
6156                                 m.tex[0] = R_GetTexture(r_texture_white);
6157                                 m.pointer_texcoord[0] = rsurface.modeltexcoordlightmap2f;
6158                                 m.pointer_texcoord_bufferobject[0] = rsurface.modeltexcoordlightmap2f_bufferobject;
6159                                 m.pointer_texcoord_bufferoffset[0] = rsurface.modeltexcoordlightmap2f_bufferoffset;
6160                                 R_Mesh_TextureState(&m);
6161                                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
6162                                         RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
6163                                 else if (rsurface.uselightmaptexture)
6164                                         RSurf_DrawBatch_GL11_Lightmap(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
6165                                 else
6166                                         RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
6167                                 GL_LockArrays(0, 0);
6168                                 // then apply the texture to it
6169                                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
6170                                 memset(&m, 0, sizeof(m));
6171                                 m.tex[0] = R_GetTexture(layer->texture);
6172                                 m.texmatrix[0] = layer->texmatrix;
6173                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
6174                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
6175                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
6176                                 R_Mesh_TextureState(&m);
6177                                 RSurf_DrawBatch_GL11_Unlit(texturenumsurfaces, texturesurfacelist, layer->color[0] * 0.5f, layer->color[1] * 0.5f, layer->color[2] * 0.5f, layer->color[3], layer->color[0] != 2 || layer->color[1] != 2 || layer->color[2] != 2 || layer->color[3] != 1, false);
6178                         }
6179                         else
6180                         {
6181                                 // single pass vertex-lighting-only texture with 1x rgbscale and transparency support
6182                                 memset(&m, 0, sizeof(m));
6183                                 m.tex[0] = R_GetTexture(layer->texture);
6184                                 m.texmatrix[0] = layer->texmatrix;
6185                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
6186                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
6187                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
6188                                 R_Mesh_TextureState(&m);
6189                                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
6190                                         RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, layer->color[0], layer->color[1], layer->color[2], layer->color[3], layer->color[0] != 1 || layer->color[1] != 1 || layer->color[2] != 1 || layer->color[3] != 1, applyfog);
6191                                 else
6192                                         RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, layer->color[0], layer->color[1], layer->color[2], layer->color[3], layer->color[0] != 1 || layer->color[1] != 1 || layer->color[2] != 1 || layer->color[3] != 1, applyfog);
6193                         }
6194                         break;
6195                 case TEXTURELAYERTYPE_TEXTURE:
6196                         // singletexture unlit texture with transparency support
6197                         memset(&m, 0, sizeof(m));
6198                         m.tex[0] = R_GetTexture(layer->texture);
6199                         m.texmatrix[0] = layer->texmatrix;
6200                         m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
6201                         m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
6202                         m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
6203                         R_Mesh_TextureState(&m);
6204                         RSurf_DrawBatch_GL11_Unlit(texturenumsurfaces, texturesurfacelist, layer->color[0], layer->color[1], layer->color[2], layer->color[3], layer->color[0] != 1 || layer->color[1] != 1 || layer->color[2] != 1 || layer->color[3] != 1, applyfog);
6205                         break;
6206                 case TEXTURELAYERTYPE_FOG:
6207                         // singletexture fogging
6208                         R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
6209                         if (layer->texture)
6210                         {
6211                                 memset(&m, 0, sizeof(m));
6212                                 m.tex[0] = R_GetTexture(layer->texture);
6213                                 m.texmatrix[0] = layer->texmatrix;
6214                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
6215                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
6216                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
6217                                 R_Mesh_TextureState(&m);
6218                         }
6219                         else
6220                                 R_Mesh_ResetTextureState();
6221                         // generate a color array for the fog pass
6222                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
6223                         {
6224                                 int i;
6225                                 float f, *v, *c;
6226                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
6227                                 for (i = 0, v = (rsurface.vertex3f + 3 * surface->num_firstvertex), c = (rsurface.array_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
6228                                 {
6229                                         f = 1 - FogPoint_Model(v);
6230                                         c[0] = layer->color[0];
6231                                         c[1] = layer->color[1];
6232                                         c[2] = layer->color[2];
6233                                         c[3] = f * layer->color[3];
6234                                 }
6235                         }
6236                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
6237                         break;
6238                 default:
6239                         Con_Printf("R_DrawTextureSurfaceList: unknown layer type %i\n", layer->type);
6240                 }
6241                 GL_LockArrays(0, 0);
6242         }
6243         CHECKGLERROR
6244         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
6245         {
6246                 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
6247                 GL_AlphaTest(false);
6248         }
6249 }
6250
6251 static void R_DrawTextureSurfaceList(int texturenumsurfaces, msurface_t **texturesurfacelist, qboolean writedepth)
6252 {
6253         CHECKGLERROR
6254         RSurf_SetupDepthAndCulling();
6255         if (r_glsl.integer && gl_support_fragment_shader)
6256                 R_DrawTextureSurfaceList_GL20(texturenumsurfaces, texturesurfacelist, writedepth);
6257         else if (gl_combine.integer && r_textureunits.integer >= 2)
6258                 R_DrawTextureSurfaceList_GL13(texturenumsurfaces, texturesurfacelist, writedepth);
6259         else
6260                 R_DrawTextureSurfaceList_GL11(texturenumsurfaces, texturesurfacelist, writedepth);
6261         CHECKGLERROR
6262 }
6263
6264 static void R_DrawSurface_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
6265 {
6266         int i, j;
6267         int texturenumsurfaces, endsurface;
6268         texture_t *texture;
6269         msurface_t *surface;
6270         msurface_t *texturesurfacelist[1024];
6271
6272         // if the model is static it doesn't matter what value we give for
6273         // wantnormals and wanttangents, so this logic uses only rules applicable
6274         // to a model, knowing that they are meaningless otherwise
6275         if (ent == r_refdef.scene.worldentity)
6276                 RSurf_ActiveWorldEntity();
6277         else if ((ent->effects & EF_FULLBRIGHT) || r_showsurfaces.integer || VectorLength2(ent->modellight_diffuse) < (1.0f / 256.0f))
6278                 RSurf_ActiveModelEntity(ent, false, false);
6279         else
6280                 RSurf_ActiveModelEntity(ent, true, r_glsl.integer && gl_support_fragment_shader);
6281
6282         for (i = 0;i < numsurfaces;i = j)
6283         {
6284                 j = i + 1;
6285                 surface = rsurface.modelsurfaces + surfacelist[i];
6286                 texture = surface->texture;
6287                 R_UpdateTextureInfo(ent, texture);
6288                 rsurface.texture = texture->currentframe;
6289                 rsurface.uselightmaptexture = surface->lightmaptexture != NULL;
6290                 // scan ahead until we find a different texture
6291                 endsurface = min(i + 1024, numsurfaces);
6292                 texturenumsurfaces = 0;
6293                 texturesurfacelist[texturenumsurfaces++] = surface;
6294                 for (;j < endsurface;j++)
6295                 {
6296                         surface = rsurface.modelsurfaces + surfacelist[j];
6297                         if (texture != surface->texture || rsurface.uselightmaptexture != (surface->lightmaptexture != NULL))
6298                                 break;
6299                         texturesurfacelist[texturenumsurfaces++] = surface;
6300                 }
6301                 // render the range of surfaces
6302                 R_DrawTextureSurfaceList(texturenumsurfaces, texturesurfacelist, false);
6303         }
6304         GL_AlphaTest(false);
6305 }
6306
6307 static void R_ProcessTextureSurfaceList(int texturenumsurfaces, msurface_t **texturesurfacelist, qboolean writedepth, qboolean depthonly, const entity_render_t *queueentity)
6308 {
6309         CHECKGLERROR
6310         if (depthonly)
6311         {
6312                 if ((rsurface.texture->currentmaterialflags & (MATERIALFLAG_NODEPTHTEST | MATERIALFLAG_BLENDED | MATERIALFLAG_ALPHATEST)))
6313                         return;
6314                 if (r_waterstate.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION)))
6315                         return;
6316                 RSurf_SetupDepthAndCulling();
6317                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
6318                 RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
6319         }
6320         else if (r_showsurfaces.integer)
6321         {
6322                 RSurf_SetupDepthAndCulling();
6323                 GL_DepthTest(true);
6324                 GL_BlendFunc(GL_ONE, GL_ZERO);
6325                 GL_DepthMask(true);
6326                 GL_AlphaTest(false);
6327                 R_Mesh_ColorPointer(NULL, 0, 0);
6328                 R_Mesh_ResetTextureState();
6329                 R_SetupGenericShader(false);
6330                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
6331                 if (!r_refdef.view.showdebug)
6332                 {
6333                         GL_Color(0, 0, 0, 1);
6334                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
6335                 }
6336                 else
6337                         RSurf_DrawBatch_ShowSurfaces(texturenumsurfaces, texturesurfacelist);
6338         }
6339         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_SKY)
6340                 R_DrawTextureSurfaceList_Sky(texturenumsurfaces, texturesurfacelist);
6341         else if (!rsurface.texture->currentnumlayers)
6342                 return;
6343         else if ((rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED) && queueentity)
6344         {
6345                 // transparent surfaces get pushed off into the transparent queue
6346                 int surfacelistindex;
6347                 const msurface_t *surface;
6348                 vec3_t tempcenter, center;
6349                 for (surfacelistindex = 0;surfacelistindex < texturenumsurfaces;surfacelistindex++)
6350                 {
6351                         surface = texturesurfacelist[surfacelistindex];
6352                         tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
6353                         tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
6354                         tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
6355                         Matrix4x4_Transform(&rsurface.matrix, tempcenter, center);
6356                         R_MeshQueue_AddTransparent(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST ? r_refdef.view.origin : center, R_DrawSurface_TransparentCallback, queueentity, surface - rsurface.modelsurfaces, rsurface.rtlight);
6357                 }
6358         }
6359         else
6360         {
6361                 // the alphatest check is to make sure we write depth for anything we skipped on the depth-only pass earlier
6362                 R_DrawTextureSurfaceList(texturenumsurfaces, texturesurfacelist, writedepth || (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST));
6363         }
6364         CHECKGLERROR
6365 }
6366
6367 void R_QueueSurfaceList(entity_render_t *ent, int numsurfaces, msurface_t **surfacelist, int flagsmask, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes)
6368 {
6369         int i, j;
6370         texture_t *texture;
6371         // if we're rendering water textures (extra scene renders), use a separate loop to avoid burdening the main one
6372         if (addwaterplanes)
6373         {
6374                 for (i = 0;i < numsurfaces;i++)
6375                         if (surfacelist[i]->texture->currentframe->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION))
6376                                 R_Water_AddWaterPlane(surfacelist[i]);
6377                 return;
6378         }
6379         // break the surface list down into batches by texture and use of lightmapping
6380         for (i = 0;i < numsurfaces;i = j)
6381         {
6382                 j = i + 1;
6383                 // texture is the base texture pointer, rsurface.texture is the
6384                 // current frame/skin the texture is directing us to use (for example
6385                 // if a model has 2 skins and it is on skin 1, then skin 0 tells us to
6386                 // use skin 1 instead)
6387                 texture = surfacelist[i]->texture;
6388                 rsurface.texture = texture->currentframe;
6389                 rsurface.uselightmaptexture = surfacelist[i]->lightmaptexture != NULL;
6390                 if (!(rsurface.texture->currentmaterialflags & flagsmask) || (rsurface.texture->currentmaterialflags & MATERIALFLAG_NODRAW))
6391                 {
6392                         // if this texture is not the kind we want, skip ahead to the next one
6393                         for (;j < numsurfaces && texture == surfacelist[j]->texture;j++)
6394                                 ;
6395                         continue;
6396                 }
6397                 // simply scan ahead until we find a different texture or lightmap state
6398                 for (;j < numsurfaces && texture == surfacelist[j]->texture && rsurface.uselightmaptexture == (surfacelist[j]->lightmaptexture != NULL);j++)
6399                         ;
6400                 // render the range of surfaces
6401                 R_ProcessTextureSurfaceList(j - i, surfacelist + i, writedepth, depthonly, ent);
6402         }
6403 }
6404
6405 float locboxvertex3f[6*4*3] =
6406 {
6407         1,0,1, 1,0,0, 1,1,0, 1,1,1,
6408         0,1,1, 0,1,0, 0,0,0, 0,0,1,
6409         1,1,1, 1,1,0, 0,1,0, 0,1,1,
6410         0,0,1, 0,0,0, 1,0,0, 1,0,1,
6411         0,0,1, 1,0,1, 1,1,1, 0,1,1,
6412         1,0,0, 0,0,0, 0,1,0, 1,1,0
6413 };
6414
6415 unsigned short locboxelements[6*2*3] =
6416 {
6417          0, 1, 2, 0, 2, 3,
6418          4, 5, 6, 4, 6, 7,
6419          8, 9,10, 8,10,11,
6420         12,13,14, 12,14,15,
6421         16,17,18, 16,18,19,
6422         20,21,22, 20,22,23
6423 };
6424
6425 void R_DrawLoc_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
6426 {
6427         int i, j;
6428         cl_locnode_t *loc = (cl_locnode_t *)ent;
6429         vec3_t mins, size;
6430         float vertex3f[6*4*3];
6431         CHECKGLERROR
6432         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6433         GL_DepthMask(false);
6434         GL_DepthRange(0, 1);
6435         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
6436         GL_DepthTest(true);
6437         GL_CullFace(GL_NONE);
6438         R_Mesh_Matrix(&identitymatrix);
6439
6440         R_Mesh_VertexPointer(vertex3f, 0, 0);
6441         R_Mesh_ColorPointer(NULL, 0, 0);
6442         R_Mesh_ResetTextureState();
6443         R_SetupGenericShader(false);
6444
6445         i = surfacelist[0];
6446         GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_refdef.view.colorscale,
6447                          ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_refdef.view.colorscale,
6448                          ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_refdef.view.colorscale,
6449                         surfacelist[0] < 0 ? 0.5f : 0.125f);
6450
6451         if (VectorCompare(loc->mins, loc->maxs))
6452         {
6453                 VectorSet(size, 2, 2, 2);
6454                 VectorMA(loc->mins, -0.5f, size, mins);
6455         }
6456         else
6457         {
6458                 VectorCopy(loc->mins, mins);
6459                 VectorSubtract(loc->maxs, loc->mins, size);
6460         }
6461
6462         for (i = 0;i < 6*4*3;)
6463                 for (j = 0;j < 3;j++, i++)
6464                         vertex3f[i] = mins[j] + size[j] * locboxvertex3f[i];
6465
6466         R_Mesh_Draw(0, 6*4, 0, 6*2, NULL, locboxelements, 0, 0);
6467 }
6468
6469 void R_DrawLocs(void)
6470 {
6471         int index;
6472         cl_locnode_t *loc, *nearestloc;
6473         vec3_t center;
6474         nearestloc = CL_Locs_FindNearest(cl.movement_origin);
6475         for (loc = cl.locnodes, index = 0;loc;loc = loc->next, index++)
6476         {
6477                 VectorLerp(loc->mins, 0.5f, loc->maxs, center);
6478                 R_MeshQueue_AddTransparent(center, R_DrawLoc_Callback, (entity_render_t *)loc, loc == nearestloc ? -1 : index, NULL);
6479         }
6480 }
6481
6482 void R_DrawDebugModel(entity_render_t *ent)
6483 {
6484         int i, j, k, l, flagsmask;
6485         const int *elements;
6486         q3mbrush_t *brush;
6487         msurface_t *surface;
6488         dp_model_t *model = ent->model;
6489         vec3_t v;
6490
6491         flagsmask = MATERIALFLAG_SKY | MATERIALFLAG_WALL;
6492
6493         R_Mesh_ColorPointer(NULL, 0, 0);
6494         R_Mesh_ResetTextureState();
6495         R_SetupGenericShader(false);
6496         GL_DepthRange(0, 1);
6497         GL_DepthTest(!r_showdisabledepthtest.integer);
6498         GL_DepthMask(false);
6499         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6500
6501         if (r_showcollisionbrushes.value > 0 && model->brush.num_brushes)
6502         {
6503                 GL_PolygonOffset(r_refdef.polygonfactor + r_showcollisionbrushes_polygonfactor.value, r_refdef.polygonoffset + r_showcollisionbrushes_polygonoffset.value);
6504                 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
6505                 {
6506                         if (brush->colbrushf && brush->colbrushf->numtriangles)
6507                         {
6508                                 R_Mesh_VertexPointer(brush->colbrushf->points->v, 0, 0);
6509                                 GL_Color((i & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, ((i >> 5) & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, ((i >> 10) & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, r_showcollisionbrushes.value);
6510                                 R_Mesh_Draw(0, brush->colbrushf->numpoints, 0, brush->colbrushf->numtriangles, brush->colbrushf->elements, NULL, 0, 0);
6511                         }
6512                 }
6513                 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
6514                 {
6515                         if (surface->num_collisiontriangles)
6516                         {
6517                                 R_Mesh_VertexPointer(surface->data_collisionvertex3f, 0, 0);
6518                                 GL_Color((i & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, ((i >> 5) & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, ((i >> 10) & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, r_showcollisionbrushes.value);
6519                                 R_Mesh_Draw(0, surface->num_collisionvertices, 0, surface->num_collisiontriangles, surface->data_collisionelement3i, NULL, 0, 0);
6520                         }
6521                 }
6522         }
6523
6524         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
6525
6526         if (r_showtris.integer || r_shownormals.integer)
6527         {
6528                 if (r_showdisabledepthtest.integer)
6529                 {
6530                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6531                         GL_DepthMask(false);
6532                 }
6533                 else
6534                 {
6535                         GL_BlendFunc(GL_ONE, GL_ZERO);
6536                         GL_DepthMask(true);
6537                 }
6538                 for (i = 0, j = model->firstmodelsurface, surface = model->data_surfaces + j;i < model->nummodelsurfaces;i++, j++, surface++)
6539                 {
6540                         if (ent == r_refdef.scene.worldentity && !r_refdef.viewcache.world_surfacevisible[j])
6541                                 continue;
6542                         rsurface.texture = surface->texture->currentframe;
6543                         if ((rsurface.texture->currentmaterialflags & flagsmask) && surface->num_triangles)
6544                         {
6545                                 RSurf_PrepareVerticesForBatch(true, true, 1, &surface);
6546                                 if (r_showtris.value > 0)
6547                                 {
6548                                         if (!rsurface.texture->currentlayers->depthmask)
6549                                                 GL_Color(r_refdef.view.colorscale, 0, 0, r_showtris.value);
6550                                         else if (ent == r_refdef.scene.worldentity)
6551                                                 GL_Color(r_refdef.view.colorscale, r_refdef.view.colorscale, r_refdef.view.colorscale, r_showtris.value);
6552                                         else
6553                                                 GL_Color(0, r_refdef.view.colorscale, 0, r_showtris.value);
6554                                         elements = (ent->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle);
6555                                         CHECKGLERROR
6556                                         qglBegin(GL_LINES);
6557                                         for (k = 0;k < surface->num_triangles;k++, elements += 3)
6558                                         {
6559 #define GLVERTEXELEMENT(n) qglVertex3f(rsurface.vertex3f[elements[n]*3+0], rsurface.vertex3f[elements[n]*3+1], rsurface.vertex3f[elements[n]*3+2])
6560                                                 GLVERTEXELEMENT(0);GLVERTEXELEMENT(1);
6561                                                 GLVERTEXELEMENT(1);GLVERTEXELEMENT(2);
6562                                                 GLVERTEXELEMENT(2);GLVERTEXELEMENT(0);
6563                                         }
6564                                         qglEnd();
6565                                         CHECKGLERROR
6566                                 }
6567                                 if (r_shownormals.value > 0)
6568                                 {
6569                                         qglBegin(GL_LINES);
6570                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6571                                         {
6572                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6573                                                 GL_Color(r_refdef.view.colorscale, 0, 0, 1);
6574                                                 qglVertex3f(v[0], v[1], v[2]);
6575                                                 VectorMA(v, r_shownormals.value, rsurface.svector3f + l * 3, v);
6576                                                 GL_Color(r_refdef.view.colorscale, 1, 1, 1);
6577                                                 qglVertex3f(v[0], v[1], v[2]);
6578                                         }
6579                                         qglEnd();
6580                                         CHECKGLERROR
6581                                         qglBegin(GL_LINES);
6582                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6583                                         {
6584                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6585                                                 GL_Color(0, r_refdef.view.colorscale, 0, 1);
6586                                                 qglVertex3f(v[0], v[1], v[2]);
6587                                                 VectorMA(v, r_shownormals.value, rsurface.tvector3f + l * 3, v);
6588                                                 GL_Color(r_refdef.view.colorscale, 1, 1, 1);
6589                                                 qglVertex3f(v[0], v[1], v[2]);
6590                                         }
6591                                         qglEnd();
6592                                         CHECKGLERROR
6593                                         qglBegin(GL_LINES);
6594                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6595                                         {
6596                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6597                                                 GL_Color(0, 0, r_refdef.view.colorscale, 1);
6598                                                 qglVertex3f(v[0], v[1], v[2]);
6599                                                 VectorMA(v, r_shownormals.value, rsurface.normal3f + l * 3, v);
6600                                                 GL_Color(r_refdef.view.colorscale, 1, 1, 1);
6601                                                 qglVertex3f(v[0], v[1], v[2]);
6602                                         }
6603                                         qglEnd();
6604                                         CHECKGLERROR
6605                                 }
6606                         }
6607                 }
6608                 rsurface.texture = NULL;
6609         }
6610 }
6611
6612 extern void R_BuildLightMap(const entity_render_t *ent, msurface_t *surface);
6613 void R_DrawWorldSurfaces(qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes, qboolean debug)
6614 {
6615         int i, j, endj, f, flagsmask;
6616         msurface_t *surface;
6617         texture_t *t;
6618         dp_model_t *model = r_refdef.scene.worldmodel;
6619         const int maxsurfacelist = 1024;
6620         int numsurfacelist = 0;
6621         msurface_t *surfacelist[1024];
6622         if (model == NULL)
6623                 return;
6624
6625         RSurf_ActiveWorldEntity();
6626
6627         // update light styles on this submodel
6628         if (!skysurfaces && !depthonly && !addwaterplanes && model->brushq1.num_lightstyles && r_refdef.lightmapintensity > 0)
6629         {
6630                 model_brush_lightstyleinfo_t *style;
6631                 for (i = 0, style = model->brushq1.data_lightstyleinfo;i < model->brushq1.num_lightstyles;i++, style++)
6632                 {
6633                         if (style->value != r_refdef.scene.lightstylevalue[style->style])
6634                         {
6635                                 msurface_t *surfaces = model->data_surfaces;
6636                                 int *list = style->surfacelist;
6637                                 style->value = r_refdef.scene.lightstylevalue[style->style];
6638                                 for (j = 0;j < style->numsurfaces;j++)
6639                                         surfaces[list[j]].cached_dlight = true;
6640                         }
6641                 }
6642         }
6643
6644         R_UpdateAllTextureInfo(r_refdef.scene.worldentity);
6645         flagsmask = addwaterplanes ? (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) : (skysurfaces ? MATERIALFLAG_SKY : MATERIALFLAG_WALL);
6646
6647         if (debug)
6648         {
6649                 R_DrawDebugModel(r_refdef.scene.worldentity);
6650                 return;
6651         }
6652
6653         f = 0;
6654         t = NULL;
6655         rsurface.uselightmaptexture = false;
6656         rsurface.texture = NULL;
6657         rsurface.rtlight = NULL;
6658         numsurfacelist = 0;
6659         j = model->firstmodelsurface;
6660         endj = j + model->nummodelsurfaces;
6661         while (j < endj)
6662         {
6663                 // quickly skip over non-visible surfaces
6664                 for (;j < endj && !r_refdef.viewcache.world_surfacevisible[j];j++)
6665                         ;
6666                 // quickly iterate over visible surfaces
6667                 for (;j < endj && r_refdef.viewcache.world_surfacevisible[j];j++)
6668                 {
6669                         // process this surface
6670                         surface = model->data_surfaces + j;
6671                         // if this surface fits the criteria, add it to the list
6672                         if (surface->num_triangles)
6673                         {
6674                                 // if lightmap parameters changed, rebuild lightmap texture
6675                                 if (surface->cached_dlight)
6676                                         R_BuildLightMap(r_refdef.scene.worldentity, surface);
6677                                 // add face to draw list
6678                                 surfacelist[numsurfacelist++] = surface;
6679                                 r_refdef.stats.world_triangles += surface->num_triangles;
6680                                 if (numsurfacelist >= maxsurfacelist)
6681                                 {
6682                                         r_refdef.stats.world_surfaces += numsurfacelist;
6683                                         R_QueueSurfaceList(r_refdef.scene.worldentity, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6684                                         numsurfacelist = 0;
6685                                 }
6686                         }
6687                 }
6688         }
6689         r_refdef.stats.world_surfaces += numsurfacelist;
6690         if (numsurfacelist)
6691                 R_QueueSurfaceList(r_refdef.scene.worldentity, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6692         GL_AlphaTest(false);
6693 }
6694
6695 void R_DrawModelSurfaces(entity_render_t *ent, qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes, qboolean debug)
6696 {
6697         int i, j, f, flagsmask;
6698         msurface_t *surface, *endsurface;
6699         texture_t *t;
6700         dp_model_t *model = ent->model;
6701         const int maxsurfacelist = 1024;
6702         int numsurfacelist = 0;
6703         msurface_t *surfacelist[1024];
6704         if (model == NULL)
6705                 return;
6706
6707         // if the model is static it doesn't matter what value we give for
6708         // wantnormals and wanttangents, so this logic uses only rules applicable
6709         // to a model, knowing that they are meaningless otherwise
6710         if (ent == r_refdef.scene.worldentity)
6711                 RSurf_ActiveWorldEntity();
6712         else if ((ent->effects & EF_FULLBRIGHT) || r_showsurfaces.integer || VectorLength2(ent->modellight_diffuse) < (1.0f / 256.0f))
6713                 RSurf_ActiveModelEntity(ent, false, false);
6714         else
6715                 RSurf_ActiveModelEntity(ent, true, r_glsl.integer && gl_support_fragment_shader && !depthonly);
6716
6717         // update light styles
6718         if (!skysurfaces && !depthonly && !addwaterplanes && model->brushq1.num_lightstyles && r_refdef.lightmapintensity > 0)
6719         {
6720                 model_brush_lightstyleinfo_t *style;
6721                 for (i = 0, style = model->brushq1.data_lightstyleinfo;i < model->brushq1.num_lightstyles;i++, style++)
6722                 {
6723                         if (style->value != r_refdef.scene.lightstylevalue[style->style])
6724                         {
6725                                 msurface_t *surfaces = model->data_surfaces;
6726                                 int *list = style->surfacelist;
6727                                 style->value = r_refdef.scene.lightstylevalue[style->style];
6728                                 for (j = 0;j < style->numsurfaces;j++)
6729                                         surfaces[list[j]].cached_dlight = true;
6730                         }
6731                 }
6732         }
6733
6734         R_UpdateAllTextureInfo(ent);
6735         flagsmask = addwaterplanes ? (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) : (skysurfaces ? MATERIALFLAG_SKY : MATERIALFLAG_WALL);
6736
6737         if (debug)
6738         {
6739                 R_DrawDebugModel(ent);
6740                 return;
6741         }
6742
6743         f = 0;
6744         t = NULL;
6745         rsurface.uselightmaptexture = false;
6746         rsurface.texture = NULL;
6747         rsurface.rtlight = NULL;
6748         numsurfacelist = 0;
6749         surface = model->data_surfaces + model->firstmodelsurface;
6750         endsurface = surface + model->nummodelsurfaces;
6751         for (;surface < endsurface;surface++)
6752         {
6753                 // if this surface fits the criteria, add it to the list
6754                 if (surface->num_triangles)
6755                 {
6756                         // if lightmap parameters changed, rebuild lightmap texture
6757                         if (surface->cached_dlight)
6758                                 R_BuildLightMap(ent, surface);
6759                         // add face to draw list
6760                         surfacelist[numsurfacelist++] = surface;
6761                         r_refdef.stats.entities_triangles += surface->num_triangles;
6762                         if (numsurfacelist >= maxsurfacelist)
6763                         {
6764                                 r_refdef.stats.entities_surfaces += numsurfacelist;
6765                                 R_QueueSurfaceList(ent, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6766                                 numsurfacelist = 0;
6767                         }
6768                 }
6769         }
6770         r_refdef.stats.entities_surfaces += numsurfacelist;
6771         if (numsurfacelist)
6772                 R_QueueSurfaceList(ent, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6773         GL_AlphaTest(false);
6774 }