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 r_view_t r_view;
  36 r_viewcache_t r_viewcache;
  37
  38 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"};
  39 cvar_t r_nearclip = {0, "r_nearclip", "1", "distance from camera of nearclip plane" };
  40 cvar_t r_showbboxes = {0, "r_showbboxes", "0", "shows bounding boxes of server entities, value controls opacity scaling (1 = 10%,  10 = 100%)"};
  41 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)"};
  42 cvar_t r_showtris = {0, "r_showtris", "0", "shows triangle outlines, value controls brightness (can be above 1)"};
  43 cvar_t r_shownormals = {0, "r_shownormals", "0", "shows per-vertex surface normals and tangent vectors for bumpmapped lighting"};
  44 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"};
  45 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"};
  46 cvar_t r_showcollisionbrushes = {0, "r_showcollisionbrushes", "0", "draws collision brushes in quake3 maps (mode 1), mode 2 disables rendering of world (trippy!)"};
  47 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"};
  48 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"};
  49 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"};
  50 cvar_t r_drawportals = {0, "r_drawportals", "0", "shows portals (separating polygons) in world interior in quake1 maps"};
  51 cvar_t r_drawentities = {0, "r_drawentities","1", "draw entities (doors, players, projectiles, etc)"};
  52 cvar_t r_drawviewmodel = {0, "r_drawviewmodel","1", "draw your weapon model"};
  53 cvar_t r_cullentities_trace = {0, "r_cullentities_trace", "1", "probabistically cull invisible entities"};
  54 cvar_t r_cullentities_trace_samples = {0, "r_cullentities_trace_samples", "2", "number of samples to test for entity culling"};
  55 cvar_t r_cullentities_trace_enlarge = {0, "r_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  56 cvar_t r_cullentities_trace_delay = {0, "r_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  57 cvar_t r_speeds = {0, "r_speeds","0", "displays rendering statistics and per-subsystem timings"};
  58 cvar_t r_fullbright = {0, "r_fullbright","0", "makes map very bright and renders faster"};
  59 cvar_t r_wateralpha = {CVAR_SAVE, "r_wateralpha","1", "opacity of water polygons"};
  60 cvar_t r_dynamic = {CVAR_SAVE, "r_dynamic","1", "enables dynamic lights (rocket glow and such)"};
  61 cvar_t r_fullbrights = {CVAR_SAVE, "r_fullbrights", "1", "enables glowing pixels in quake textures (changes need r_restart to take effect)"};
  62 cvar_t r_shadows = {CVAR_SAVE, "r_shadows", "0", "casts fake stencil shadows from models onto the world (rtlights are unaffected by this)"};
  63 cvar_t r_shadows_throwdistance = {CVAR_SAVE, "r_shadows_throwdistance", "500", "how far to cast shadows from models"};
  64 cvar_t r_q1bsp_skymasking = {0, "r_q1bsp_skymasking", "1", "allows sky polygons in quake1 maps to obscure other geometry"};
  65 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"};
  66 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"};
  67 cvar_t r_fog_exp2 = {0, "r_fog_exp2", "0", "uses GL_EXP2 fog (as in Nehahra) rather than realistic GL_EXP fog"};
  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_offsetmapping = {CVAR_SAVE, "r_glsl_offsetmapping", "0", "offset mapping effect (also known as parallax mapping or virtual displacement mapping)"};
  82 cvar_t r_glsl_offsetmapping_reliefmapping = {CVAR_SAVE, "r_glsl_offsetmapping_reliefmapping", "0", "relief mapping effect (higher quality)"};
  83 cvar_t r_glsl_offsetmapping_scale = {CVAR_SAVE, "r_glsl_offsetmapping_scale", "0.04", "how deep the offset mapping effect is"};
  84 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)"};
  85 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)"};
  86
  87 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)"};
  88 cvar_t r_water_clippingplanebias = {CVAR_SAVE, "r_water_clippingplanebias", "1", "a rather technical setting which avoids black pixels around water edges"};
  89 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"};
  90 cvar_t r_water_refractdistort = {CVAR_SAVE, "r_water_refractdistort", "0.01", "how much water refractions shimmer"};
  91 cvar_t r_water_reflectdistort = {CVAR_SAVE, "r_water_reflectdistort", "0.01", "how much water reflections shimmer"};
  92
  93 cvar_t r_lerpsprites = {CVAR_SAVE, "r_lerpsprites", "1", "enables animation smoothing on sprites (requires r_lerpmodels 1)"};
  94 cvar_t r_lerpmodels = {CVAR_SAVE, "r_lerpmodels", "1", "enables animation smoothing on models"};
  95 cvar_t r_lerplightstyles = {CVAR_SAVE, "r_lerplightstyles", "0", "enable animation smoothing on flickering lights"};
  96 cvar_t r_waterscroll = {CVAR_SAVE, "r_waterscroll", "1", "makes water scroll around, value controls how much"};
  97
  98 cvar_t r_bloom = {CVAR_SAVE, "r_bloom", "0", "enables bloom effect (makes bright pixels affect neighboring pixels)"};
  99 cvar_t r_bloom_colorscale = {CVAR_SAVE, "r_bloom_colorscale", "1", "how bright the glow is"};
 100 cvar_t r_bloom_brighten = {CVAR_SAVE, "r_bloom_brighten", "2", "how bright the glow is, after subtract/power"};
 101 cvar_t r_bloom_blur = {CVAR_SAVE, "r_bloom_blur", "4", "how large the glow is"};
 102 cvar_t r_bloom_resolution = {CVAR_SAVE, "r_bloom_resolution", "320", "what resolution to perform the bloom effect at (independent of screen resolution)"};
 103 cvar_t r_bloom_colorexponent = {CVAR_SAVE, "r_bloom_colorexponent", "1", "how exagerated the glow is"};
 104 cvar_t r_bloom_colorsubtract = {CVAR_SAVE, "r_bloom_colorsubtract", "0.125", "reduces bloom colors by a certain amount"};
 105
 106 cvar_t r_hdr = {CVAR_SAVE, "r_hdr", "0", "enables High Dynamic Range bloom effect (higher quality version of r_bloom)"};
 107 cvar_t r_hdr_scenebrightness = {CVAR_SAVE, "r_hdr_scenebrightness", "1", "global rendering brightness"};
 108 cvar_t r_hdr_glowintensity = {CVAR_SAVE, "r_hdr_glowintensity", "1", "how bright light emitting textures should appear"};
 109 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)"};
 110
 111 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"};
 112
 113 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"};
 114
 115 cvar_t gl_lightmaps = {0, "gl_lightmaps", "0", "draws only lightmaps, no texture (for level designers)"};
 116
 117 cvar_t r_test = {0, "r_test", "0", "internal development use only, leave it alone (usually does nothing anyway)"};
 118 cvar_t r_batchmode = {0, "r_batchmode", "1", "selects method of rendering multiple surfaces with one driver call (values are 0, 1, 2, etc...)"};
 119 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"};
 120 cvar_t r_track_sprites_flags = {CVAR_SAVE, "r_track_sprites_flags", "1", "1: Rotate sprites accodringly, 2: Make it a continuous rotation"};
 121 cvar_t r_track_sprites_scalew = {CVAR_SAVE, "r_track_sprites_scalew", "1", "width scaling of tracked sprites"};
 122 cvar_t r_track_sprites_scaleh = {CVAR_SAVE, "r_track_sprites_scaleh", "1", "height scaling of tracked sprites"};
 123
 124 extern qboolean v_flipped_state;
 125
 126 typedef struct r_glsl_bloomshader_s
 127 {
 128         int program;
 129         int loc_Texture_Bloom;
 130 }
 131 r_glsl_bloomshader_t;
 132
 133 static struct r_bloomstate_s
 134 {
 135         qboolean enabled;
 136         qboolean hdr;
 137
 138         int bloomwidth, bloomheight;
 139
 140         int screentexturewidth, screentextureheight;
 141         rtexture_t *texture_screen;
 142
 143         int bloomtexturewidth, bloomtextureheight;
 144         rtexture_t *texture_bloom;
 145
 146         r_glsl_bloomshader_t *shader;
 147
 148         // arrays for rendering the screen passes
 149         float screentexcoord2f[8];
 150         float bloomtexcoord2f[8];
 151         float offsettexcoord2f[8];
 152 }
 153 r_bloomstate;
 154
 155 typedef struct r_waterstate_waterplane_s
 156 {
 157         rtexture_t *texture_refraction;
 158         rtexture_t *texture_reflection;
 159         mplane_t plane;
 160         int materialflags; // combined flags of all water surfaces on this plane
 161         unsigned char pvsbits[(32768+7)>>3]; // FIXME: buffer overflow on huge maps
 162         qboolean pvsvalid;
 163 }
 164 r_waterstate_waterplane_t;
 165
 166 #define MAX_WATERPLANES 16
 167
 168 static struct r_waterstate_s
 169 {
 170         qboolean enabled;
 171
 172         qboolean renderingscene; // true while rendering a refraction or reflection texture, disables water surfaces
 173
 174         int waterwidth, waterheight;
 175         int texturewidth, textureheight;
 176
 177         int maxwaterplanes; // same as MAX_WATERPLANES
 178         int numwaterplanes;
 179         r_waterstate_waterplane_t waterplanes[MAX_WATERPLANES];
 180
 181         float screenscale[2];
 182         float screencenter[2];
 183 }
 184 r_waterstate;
 185
 186 // shadow volume bsp struct with automatically growing nodes buffer
 187 svbsp_t r_svbsp;
 188
 189 rtexture_t *r_texture_blanknormalmap;
 190 rtexture_t *r_texture_white;
 191 rtexture_t *r_texture_grey128;
 192 rtexture_t *r_texture_black;
 193 rtexture_t *r_texture_notexture;
 194 rtexture_t *r_texture_whitecube;
 195 rtexture_t *r_texture_normalizationcube;
 196 rtexture_t *r_texture_fogattenuation;
 197 //rtexture_t *r_texture_fogintensity;
 198
 199 char r_qwskincache[MAX_SCOREBOARD][MAX_QPATH];
 200 skinframe_t *r_qwskincache_skinframe[MAX_SCOREBOARD];
 201
 202 // vertex coordinates for a quad that covers the screen exactly
 203 const static float r_screenvertex3f[12] =
 204 {
 205         0, 0, 0,
 206         1, 0, 0,
 207         1, 1, 0,
 208         0, 1, 0
 209 };
 210
 211 extern void R_DrawModelShadows(void);
 212
 213 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
 214 {
 215         int i;
 216         for (i = 0;i < verts;i++)
 217         {
 218                 out[0] = in[0] * r;
 219                 out[1] = in[1] * g;
 220                 out[2] = in[2] * b;
 221                 out[3] = in[3];
 222                 in += 4;
 223                 out += 4;
 224         }
 225 }
 226
 227 void R_FillColors(float *out, int verts, float r, float g, float b, float a)
 228 {
 229         int i;
 230         for (i = 0;i < verts;i++)
 231         {
 232                 out[0] = r;
 233                 out[1] = g;
 234                 out[2] = b;
 235                 out[3] = a;
 236                 out += 4;
 237         }
 238 }
 239
 240 // FIXME: move this to client?
 241 void FOG_clear(void)
 242 {
 243         if (gamemode == GAME_NEHAHRA)
 244         {
 245                 Cvar_Set("gl_fogenable", "0");
 246                 Cvar_Set("gl_fogdensity", "0.2");
 247                 Cvar_Set("gl_fogred", "0.3");
 248                 Cvar_Set("gl_foggreen", "0.3");
 249                 Cvar_Set("gl_fogblue", "0.3");
 250         }
 251         r_refdef.fog_density = 0;
 252         r_refdef.fog_red = 0;
 253         r_refdef.fog_green = 0;
 254         r_refdef.fog_blue = 0;
 255         r_refdef.fog_alpha = 1;
 256         r_refdef.fog_start = 0;
 257         r_refdef.fog_end = 0;
 258 }
 259
 260 float FogForDistance(vec_t dist)
 261 {
 262         unsigned int fogmasktableindex = (unsigned int)(dist * r_refdef.fogmasktabledistmultiplier);
 263         return r_refdef.fogmasktable[min(fogmasktableindex, FOGMASKTABLEWIDTH - 1)];
 264 }
 265
 266 float FogPoint_World(const vec3_t p)
 267 {
 268         return FogForDistance(VectorDistance((p), r_view.origin));
 269 }
 270
 271 float FogPoint_Model(const vec3_t p)
 272 {
 273         return FogForDistance(VectorDistance((p), rsurface.modelorg));
 274 }
 275
 276 static void R_BuildBlankTextures(void)
 277 {
 278         unsigned char data[4];
 279         data[2] = 128; // normal X
 280         data[1] = 128; // normal Y
 281         data[0] = 255; // normal Z
 282         data[3] = 128; // height
 283         r_texture_blanknormalmap = R_LoadTexture2D(r_main_texturepool, "blankbump", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 284         data[0] = 255;
 285         data[1] = 255;
 286         data[2] = 255;
 287         data[3] = 255;
 288         r_texture_white = R_LoadTexture2D(r_main_texturepool, "blankwhite", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 289         data[0] = 128;
 290         data[1] = 128;
 291         data[2] = 128;
 292         data[3] = 255;
 293         r_texture_grey128 = R_LoadTexture2D(r_main_texturepool, "blankgrey128", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 294         data[0] = 0;
 295         data[1] = 0;
 296         data[2] = 0;
 297         data[3] = 255;
 298         r_texture_black = R_LoadTexture2D(r_main_texturepool, "blankblack", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 299 }
 300
 301 static void R_BuildNoTexture(void)
 302 {
 303         int x, y;
 304         unsigned char pix[16][16][4];
 305         // this makes a light grey/dark grey checkerboard texture
 306         for (y = 0;y < 16;y++)
 307         {
 308                 for (x = 0;x < 16;x++)
 309                 {
 310                         if ((y < 8) ^ (x < 8))
 311                         {
 312                                 pix[y][x][0] = 128;
 313                                 pix[y][x][1] = 128;
 314                                 pix[y][x][2] = 128;
 315                                 pix[y][x][3] = 255;
 316                         }
 317                         else
 318                         {
 319                                 pix[y][x][0] = 64;
 320                                 pix[y][x][1] = 64;
 321                                 pix[y][x][2] = 64;
 322                                 pix[y][x][3] = 255;
 323                         }
 324                 }
 325         }
 326         r_texture_notexture = R_LoadTexture2D(r_main_texturepool, "notexture", 16, 16, &pix[0][0][0], TEXTYPE_BGRA, TEXF_MIPMAP | TEXF_PERSISTENT, NULL);
 327 }
 328
 329 static void R_BuildWhiteCube(void)
 330 {
 331         unsigned char data[6*1*1*4];
 332         memset(data, 255, sizeof(data));
 333         r_texture_whitecube = R_LoadTextureCubeMap(r_main_texturepool, "whitecube", 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_PERSISTENT, NULL);
 334 }
 335
 336 static void R_BuildNormalizationCube(void)
 337 {
 338         int x, y, side;
 339         vec3_t v;
 340         vec_t s, t, intensity;
 341 #define NORMSIZE 64
 342         unsigned char data[6][NORMSIZE][NORMSIZE][4];
 343         for (side = 0;side < 6;side++)
 344         {
 345                 for (y = 0;y < NORMSIZE;y++)
 346                 {
 347                         for (x = 0;x < NORMSIZE;x++)
 348                         {
 349                                 s = (x + 0.5f) * (2.0f / NORMSIZE) - 1.0f;
 350                                 t = (y + 0.5f) * (2.0f / NORMSIZE) - 1.0f;
 351                                 switch(side)
 352                                 {
 353                                 default:
 354                                 case 0:
 355                                         v[0] = 1;
 356                                         v[1] = -t;
 357                                         v[2] = -s;
 358                                         break;
 359                                 case 1:
 360                                         v[0] = -1;
 361                                         v[1] = -t;
 362                                         v[2] = s;
 363                                         break;
 364                                 case 2:
 365                                         v[0] = s;
 366                                         v[1] = 1;
 367                                         v[2] = t;
 368                                         break;
 369                                 case 3:
 370                                         v[0] = s;
 371                                         v[1] = -1;
 372                                         v[2] = -t;
 373                                         break;
 374                                 case 4:
 375                                         v[0] = s;
 376                                         v[1] = -t;
 377                                         v[2] = 1;
 378                                         break;
 379                                 case 5:
 380                                         v[0] = -s;
 381                                         v[1] = -t;
 382                                         v[2] = -1;
 383                                         break;
 384                                 }
 385                                 intensity = 127.0f / sqrt(DotProduct(v, v));
 386                                 data[side][y][x][2] = (unsigned char)(128.0f + intensity * v[0]);
 387                                 data[side][y][x][1] = (unsigned char)(128.0f + intensity * v[1]);
 388                                 data[side][y][x][0] = (unsigned char)(128.0f + intensity * v[2]);
 389                                 data[side][y][x][3] = 255;
 390                         }
 391                 }
 392         }
 393         r_texture_normalizationcube = R_LoadTextureCubeMap(r_main_texturepool, "normalcube", NORMSIZE, &data[0][0][0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_PERSISTENT, NULL);
 394 }
 395
 396 static void R_BuildFogTexture(void)
 397 {
 398         int x, b;
 399 #define FOGWIDTH 256
 400         unsigned char data1[FOGWIDTH][4];
 401         //unsigned char data2[FOGWIDTH][4];
 402         double d, r, alpha;
 403
 404         r_refdef.fogmasktable_start = r_refdef.fog_start;
 405         r_refdef.fogmasktable_alpha = r_refdef.fog_alpha;
 406         r_refdef.fogmasktable_range = r_refdef.fogrange;
 407         r_refdef.fogmasktable_density = r_refdef.fog_density;
 408
 409         r = r_refdef.fogmasktable_range / FOGMASKTABLEWIDTH;
 410         for (x = 0;x < FOGMASKTABLEWIDTH;x++)
 411         {
 412                 d = (x * r - r_refdef.fogmasktable_start);
 413                 if(developer.integer >= 100)
 414                         Con_Printf("%f ", d);
 415                 d = max(0, d);
 416                 if (r_fog_exp2.integer)
 417                         alpha = exp(-r_refdef.fogmasktable_density * r_refdef.fogmasktable_density * 0.0001 * d * d);
 418                 else
 419                         alpha = exp(-r_refdef.fogmasktable_density * 0.004 * d);
 420                 if(developer.integer >= 100)
 421                         Con_Printf(" : %f ", alpha);
 422                 alpha = 1 - (1 - alpha) * r_refdef.fogmasktable_alpha;
 423                 if(developer.integer >= 100)
 424                         Con_Printf(" = %f\n", alpha);
 425                 r_refdef.fogmasktable[x] = bound(0, alpha, 1);
 426         }
 427
 428         for (x = 0;x < FOGWIDTH;x++)
 429         {
 430                 b = (int)(r_refdef.fogmasktable[x * (FOGMASKTABLEWIDTH - 1) / (FOGWIDTH - 1)] * 255);
 431                 data1[x][0] = b;
 432                 data1[x][1] = b;
 433                 data1[x][2] = b;
 434                 data1[x][3] = 255;
 435                 //data2[x][0] = 255 - b;
 436                 //data2[x][1] = 255 - b;
 437                 //data2[x][2] = 255 - b;
 438                 //data2[x][3] = 255;
 439         }
 440         if (r_texture_fogattenuation)
 441         {
 442                 R_UpdateTexture(r_texture_fogattenuation, &data1[0][0], 0, 0, FOGWIDTH, 1);
 443                 //R_UpdateTexture(r_texture_fogattenuation, &data2[0][0], 0, 0, FOGWIDTH, 1);
 444         }
 445         else
 446         {
 447                 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);
 448                 //r_texture_fogintensity = R_LoadTexture2D(r_main_texturepool, "fogintensity", FOGWIDTH, 1, &data2[0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_FORCELINEAR | TEXF_CLAMP, NULL);
 449         }
 450 }
 451
 452 static const char *builtinshaderstring =
 453 "// ambient+diffuse+specular+normalmap+attenuation+cubemap+fog shader\n"
 454 "// written by Forest 'LordHavoc' Hale\n"
 455 "\n"
 456 "// common definitions between vertex shader and fragment shader:\n"
 457 "\n"
 458 "#ifdef __GLSL_CG_DATA_TYPES\n"
 459 "# define myhalf half\n"
 460 "# define myhvec2 hvec2\n"
 461 "# define myhvec3 hvec3\n"
 462 "# define myhvec4 hvec4\n"
 463 "#else\n"
 464 "# define myhalf float\n"
 465 "# define myhvec2 vec2\n"
 466 "# define myhvec3 vec3\n"
 467 "# define myhvec4 vec4\n"
 468 "#endif\n"
 469 "\n"
 470 "varying vec2 TexCoord;\n"
 471 "varying vec2 TexCoordLightmap;\n"
 472 "\n"
 473 "//#ifdef MODE_LIGHTSOURCE\n"
 474 "varying vec3 CubeVector;\n"
 475 "//#endif\n"
 476 "\n"
 477 "//#ifdef MODE_LIGHTSOURCE\n"
 478 "varying vec3 LightVector;\n"
 479 "//#else\n"
 480 "//# ifdef MODE_LIGHTDIRECTION\n"
 481 "//varying vec3 LightVector;\n"
 482 "//# endif\n"
 483 "//#endif\n"
 484 "\n"
 485 "varying vec3 EyeVector;\n"
 486 "//#ifdef USEFOG\n"
 487 "varying vec3 EyeVectorModelSpace;\n"
 488 "//#endif\n"
 489 "\n"
 490 "varying vec3 VectorS; // direction of S texcoord (sometimes crudely called tangent)\n"
 491 "varying vec3 VectorT; // direction of T texcoord (sometimes crudely called binormal)\n"
 492 "varying vec3 VectorR; // direction of R texcoord (surface normal)\n"
 493 "\n"
 494 "//#ifdef MODE_WATER\n"
 495 "varying vec4 ModelViewProjectionPosition;\n"
 496 "//#else\n"
 497 "//# ifdef MODE_REFRACTION\n"
 498 "//varying vec4 ModelViewProjectionPosition;\n"
 499 "//# else\n"
 500 "//#  ifdef USEREFLECTION\n"
 501 "//varying vec4 ModelViewProjectionPosition;\n"
 502 "//#  endif\n"
 503 "//# endif\n"
 504 "//#endif\n"
 505 "\n"
 506 "\n"
 507 "\n"
 508 "\n"
 509 "\n"
 510 "// vertex shader specific:\n"
 511 "#ifdef VERTEX_SHADER\n"
 512 "\n"
 513 "uniform vec3 LightPosition;\n"
 514 "uniform vec3 EyePosition;\n"
 515 "uniform vec3 LightDir;\n"
 516 "\n"
 517 "// TODO: get rid of tangentt (texcoord2) and use a crossproduct to regenerate it from tangents (texcoord1) and normal (texcoord3)\n"
 518 "\n"
 519 "void main(void)\n"
 520 "{\n"
 521 "       gl_FrontColor = gl_Color;\n"
 522 "       // copy the surface texcoord\n"
 523 "       TexCoord = vec2(gl_TextureMatrix[0] * gl_MultiTexCoord0);\n"
 524 "#ifndef MODE_LIGHTSOURCE\n"
 525 "# ifndef MODE_LIGHTDIRECTION\n"
 526 "       TexCoordLightmap = vec2(gl_MultiTexCoord4);\n"
 527 "# endif\n"
 528 "#endif\n"
 529 "\n"
 530 "#ifdef MODE_LIGHTSOURCE\n"
 531 "       // transform vertex position into light attenuation/cubemap space\n"
 532 "       // (-1 to +1 across the light box)\n"
 533 "       CubeVector = vec3(gl_TextureMatrix[3] * gl_Vertex);\n"
 534 "\n"
 535 "       // transform unnormalized light direction into tangent space\n"
 536 "       // (we use unnormalized to ensure that it interpolates correctly and then\n"
 537 "       //  normalize it per pixel)\n"
 538 "       vec3 lightminusvertex = LightPosition - gl_Vertex.xyz;\n"
 539 "       LightVector.x = dot(lightminusvertex, gl_MultiTexCoord1.xyz);\n"
 540 "       LightVector.y = dot(lightminusvertex, gl_MultiTexCoord2.xyz);\n"
 541 "       LightVector.z = dot(lightminusvertex, gl_MultiTexCoord3.xyz);\n"
 542 "#endif\n"
 543 "\n"
 544 "#ifdef MODE_LIGHTDIRECTION\n"
 545 "       LightVector.x = dot(LightDir, gl_MultiTexCoord1.xyz);\n"
 546 "       LightVector.y = dot(LightDir, gl_MultiTexCoord2.xyz);\n"
 547 "       LightVector.z = dot(LightDir, gl_MultiTexCoord3.xyz);\n"
 548 "#endif\n"
 549 "\n"
 550 "       // transform unnormalized eye direction into tangent space\n"
 551 "#ifndef USEFOG\n"
 552 "       vec3 EyeVectorModelSpace;\n"
 553 "#endif\n"
 554 "       EyeVectorModelSpace = EyePosition - gl_Vertex.xyz;\n"
 555 "       EyeVector.x = dot(EyeVectorModelSpace, gl_MultiTexCoord1.xyz);\n"
 556 "       EyeVector.y = dot(EyeVectorModelSpace, gl_MultiTexCoord2.xyz);\n"
 557 "       EyeVector.z = dot(EyeVectorModelSpace, gl_MultiTexCoord3.xyz);\n"
 558 "\n"
 559 "#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 560 "       VectorS = gl_MultiTexCoord1.xyz;\n"
 561 "       VectorT = gl_MultiTexCoord2.xyz;\n"
 562 "       VectorR = gl_MultiTexCoord3.xyz;\n"
 563 "#endif\n"
 564 "\n"
 565 "//#if defined(MODE_WATER) || defined(MODE_REFRACTION) || defined(USEREFLECTION)\n"
 566 "//     ModelViewProjectionPosition = gl_Vertex * gl_ModelViewProjectionMatrix;\n"
 567 "//     //ModelViewProjectionPosition_svector = (gl_Vertex + vec4(gl_MultiTexCoord1.xyz, 0)) * gl_ModelViewProjectionMatrix - ModelViewProjectionPosition;\n"
 568 "//     //ModelViewProjectionPosition_tvector = (gl_Vertex + vec4(gl_MultiTexCoord2.xyz, 0)) * gl_ModelViewProjectionMatrix - ModelViewProjectionPosition;\n"
 569 "//#endif\n"
 570 "\n"
 571 "// transform vertex to camera space, using ftransform to match non-VS\n"
 572 "       // rendering\n"
 573 "       gl_Position = ftransform();\n"
 574 "\n"
 575 "#ifdef MODE_WATER\n"
 576 "       ModelViewProjectionPosition = gl_Position;\n"
 577 "#endif\n"
 578 "#ifdef MODE_REFRACTION\n"
 579 "       ModelViewProjectionPosition = gl_Position;\n"
 580 "#endif\n"
 581 "#ifdef USEREFLECTION\n"
 582 "       ModelViewProjectionPosition = gl_Position;\n"
 583 "#endif\n"
 584 "}\n"
 585 "\n"
 586 "#endif // VERTEX_SHADER\n"
 587 "\n"
 588 "\n"
 589 "\n"
 590 "\n"
 591 "// fragment shader specific:\n"
 592 "#ifdef FRAGMENT_SHADER\n"
 593 "\n"
 594 "// 13 textures, we can only use up to 16 on DX9-class hardware\n"
 595 "uniform sampler2D Texture_Normal;\n"
 596 "uniform sampler2D Texture_Color;\n"
 597 "uniform sampler2D Texture_Gloss;\n"
 598 "uniform samplerCube Texture_Cube;\n"
 599 "uniform sampler2D Texture_Attenuation;\n"
 600 "uniform sampler2D Texture_FogMask;\n"
 601 "uniform sampler2D Texture_Pants;\n"
 602 "uniform sampler2D Texture_Shirt;\n"
 603 "uniform sampler2D Texture_Lightmap;\n"
 604 "uniform sampler2D Texture_Deluxemap;\n"
 605 "uniform sampler2D Texture_Glow;\n"
 606 "uniform sampler2D Texture_Reflection;\n"
 607 "uniform sampler2D Texture_Refraction;\n"
 608 "\n"
 609 "uniform myhvec3 LightColor;\n"
 610 "uniform myhvec3 AmbientColor;\n"
 611 "uniform myhvec3 DiffuseColor;\n"
 612 "uniform myhvec3 SpecularColor;\n"
 613 "uniform myhvec3 Color_Pants;\n"
 614 "uniform myhvec3 Color_Shirt;\n"
 615 "uniform myhvec3 FogColor;\n"
 616 "\n"
 617 "uniform myhvec4 TintColor;\n"
 618 "\n"
 619 "\n"
 620 "//#ifdef MODE_WATER\n"
 621 "uniform vec4 DistortScaleRefractReflect;\n"
 622 "uniform vec4 ScreenScaleRefractReflect;\n"
 623 "uniform vec4 ScreenCenterRefractReflect;\n"
 624 "uniform myhvec4 RefractColor;\n"
 625 "uniform myhvec4 ReflectColor;\n"
 626 "uniform myhalf ReflectFactor;\n"
 627 "uniform myhalf ReflectOffset;\n"
 628 "//#else\n"
 629 "//# ifdef MODE_REFRACTION\n"
 630 "//uniform vec4 DistortScaleRefractReflect;\n"
 631 "//uniform vec4 ScreenScaleRefractReflect;\n"
 632 "//uniform vec4 ScreenCenterRefractReflect;\n"
 633 "//uniform myhvec4 RefractColor;\n"
 634 "//#  ifdef USEREFLECTION\n"
 635 "//uniform myhvec4 ReflectColor;\n"
 636 "//#  endif\n"
 637 "//# else\n"
 638 "//#  ifdef USEREFLECTION\n"
 639 "//uniform vec4 DistortScaleRefractReflect;\n"
 640 "//uniform vec4 ScreenScaleRefractReflect;\n"
 641 "//uniform vec4 ScreenCenterRefractReflect;\n"
 642 "//uniform myhvec4 ReflectColor;\n"
 643 "//#  endif\n"
 644 "//# endif\n"
 645 "//#endif\n"
 646 "\n"
 647 "uniform myhalf GlowScale;\n"
 648 "uniform myhalf SceneBrightness;\n"
 649 "#ifdef USECONTRASTBOOST\n"
 650 "uniform myhalf ContrastBoostCoeff;\n"
 651 "#endif\n"
 652 "\n"
 653 "uniform float OffsetMapping_Scale;\n"
 654 "uniform float OffsetMapping_Bias;\n"
 655 "uniform float FogRangeRecip;\n"
 656 "\n"
 657 "uniform myhalf AmbientScale;\n"
 658 "uniform myhalf DiffuseScale;\n"
 659 "uniform myhalf SpecularScale;\n"
 660 "uniform myhalf SpecularPower;\n"
 661 "\n"
 662 "#ifdef USEOFFSETMAPPING\n"
 663 "vec2 OffsetMapping(vec2 TexCoord)\n"
 664 "{\n"
 665 "#ifdef USEOFFSETMAPPING_RELIEFMAPPING\n"
 666 "       // 14 sample relief mapping: linear search and then binary search\n"
 667 "       // this basically steps forward a small amount repeatedly until it finds\n"
 668 "       // itself inside solid, then jitters forward and back using decreasing\n"
 669 "       // amounts to find the impact\n"
 670 "       //vec3 OffsetVector = vec3(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1), -1);\n"
 671 "       //vec3 OffsetVector = vec3(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1), -1);\n"
 672 "       vec3 OffsetVector = vec3(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1), -1);\n"
 673 "       vec3 RT = vec3(TexCoord, 1);\n"
 674 "       OffsetVector *= 0.1;\n"
 675 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 676 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 677 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 678 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 679 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 680 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 681 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 682 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 683 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 684 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z)          - 0.5);\n"
 685 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.5    - 0.25);\n"
 686 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.25   - 0.125);\n"
 687 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.125  - 0.0625);\n"
 688 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.0625 - 0.03125);\n"
 689 "       return RT.xy;\n"
 690 "#else\n"
 691 "       // 3 sample offset mapping (only 3 samples because of ATI Radeon 9500-9800/X300 limits)\n"
 692 "       // this basically moves forward the full distance, and then backs up based\n"
 693 "       // on height of samples\n"
 694 "       //vec2 OffsetVector = vec2(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1));\n"
 695 "       //vec2 OffsetVector = vec2(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1));\n"
 696 "       vec2 OffsetVector = vec2(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1));\n"
 697 "       TexCoord += OffsetVector;\n"
 698 "       OffsetVector *= 0.333;\n"
 699 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 700 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 701 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 702 "       return TexCoord;\n"
 703 "#endif\n"
 704 "}\n"
 705 "#endif // USEOFFSETMAPPING\n"
 706 "\n"
 707 "#ifdef MODE_WATER\n"
 708 "\n"
 709 "// water pass\n"
 710 "void main(void)\n"
 711 "{\n"
 712 "#ifdef USEOFFSETMAPPING\n"
 713 "       // apply offsetmapping\n"
 714 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 715 "#define TexCoord TexCoordOffset\n"
 716 "#endif\n"
 717 "\n"
 718 "       vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w);\n"
 719 "       //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
 720 "       vec4 ScreenTexCoord = ModelViewProjectionPosition.xyxy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect + vec2(normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5))).xyxy * DistortScaleRefractReflect;\n"
 721 "       float Fresnel = pow(min(1.0, 1.0 - float(normalize(EyeVector).z)), 5.0) * ReflectFactor + ReflectOffset;\n"
 722 "       gl_FragColor = mix(texture2D(Texture_Refraction, ScreenTexCoord.xy) * RefractColor, texture2D(Texture_Reflection, ScreenTexCoord.zw) * ReflectColor, Fresnel);\n"
 723 "}\n"
 724 "\n"
 725 "#else // MODE_WATER\n"
 726 "#ifdef MODE_REFRACTION\n"
 727 "\n"
 728 "// refraction pass\n"
 729 "void main(void)\n"
 730 "{\n"
 731 "#ifdef USEOFFSETMAPPING\n"
 732 "       // apply offsetmapping\n"
 733 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 734 "#define TexCoord TexCoordOffset\n"
 735 "#endif\n"
 736 "\n"
 737 "       vec2 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect.xy * (1.0 / ModelViewProjectionPosition.w);\n"
 738 "       //vec2 ScreenTexCoord = (ModelViewProjectionPosition.xy + normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5)).xy * DistortScaleRefractReflect.xy * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy;\n"
 739 "       vec2 ScreenTexCoord = ModelViewProjectionPosition.xy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy + vec2(normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5))).xy * DistortScaleRefractReflect.xy;\n"
 740 "       gl_FragColor = texture2D(Texture_Refraction, ScreenTexCoord) * RefractColor;\n"
 741 "}\n"
 742 "\n"
 743 "#else // MODE_REFRACTION\n"
 744 "void main(void)\n"
 745 "{\n"
 746 "#ifdef USEOFFSETMAPPING\n"
 747 "       // apply offsetmapping\n"
 748 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 749 "#define TexCoord TexCoordOffset\n"
 750 "#endif\n"
 751 "\n"
 752 "       // combine the diffuse textures (base, pants, shirt)\n"
 753 "       myhvec4 color = myhvec4(texture2D(Texture_Color, TexCoord));\n"
 754 "#ifdef USECOLORMAPPING\n"
 755 "       color.rgb += myhvec3(texture2D(Texture_Pants, TexCoord)) * Color_Pants + myhvec3(texture2D(Texture_Shirt, TexCoord)) * Color_Shirt;\n"
 756 "#endif\n"
 757 "\n"
 758 "\n"
 759 "\n"
 760 "\n"
 761 "#ifdef MODE_LIGHTSOURCE\n"
 762 "       // light source\n"
 763 "\n"
 764 "       // calculate surface normal, light normal, and specular normal\n"
 765 "       // compute color intensity for the two textures (colormap and glossmap)\n"
 766 "       // scale by light color and attenuation as efficiently as possible\n"
 767 "       // (do as much scalar math as possible rather than vector math)\n"
 768 "# ifdef USESPECULAR\n"
 769 "       myhvec3 surfacenormal = normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5));\n"
 770 "       myhvec3 diffusenormal = myhvec3(normalize(LightVector));\n"
 771 "       myhvec3 specularnormal = normalize(diffusenormal + myhvec3(normalize(EyeVector)));\n"
 772 "\n"
 773 "       // calculate directional shading\n"
 774 "       color.rgb = LightColor * 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)) * myhvec3(texture2D(Texture_Gloss, TexCoord)));\n"
 775 "# else\n"
 776 "#  ifdef USEDIFFUSE\n"
 777 "       myhvec3 surfacenormal = normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5));\n"
 778 "       myhvec3 diffusenormal = myhvec3(normalize(LightVector));\n"
 779 "\n"
 780 "       // calculate directional shading\n"
 781 "       color.rgb = color.rgb * LightColor * (myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0))) * (AmbientScale + DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0))));\n"
 782 "#  else\n"
 783 "       // calculate directionless shading\n"
 784 "       color.rgb = color.rgb * LightColor * myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0)));\n"
 785 "#  endif\n"
 786 "# endif\n"
 787 "\n"
 788 "# ifdef USECUBEFILTER\n"
 789 "       // apply light cubemap filter\n"
 790 "       //color.rgb *= normalize(CubeVector) * 0.5 + 0.5;//vec3(textureCube(Texture_Cube, CubeVector));\n"
 791 "       color.rgb *= myhvec3(textureCube(Texture_Cube, CubeVector));\n"
 792 "# endif\n"
 793 "#endif // MODE_LIGHTSOURCE\n"
 794 "\n"
 795 "\n"
 796 "\n"
 797 "\n"
 798 "#ifdef MODE_LIGHTDIRECTION\n"
 799 "       // directional model lighting\n"
 800 "# ifdef USESPECULAR\n"
 801 "       // get the surface normal and light normal\n"
 802 "       myhvec3 surfacenormal = normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5));\n"
 803 "       myhvec3 diffusenormal = myhvec3(LightVector);\n"
 804 "\n"
 805 "       // calculate directional shading\n"
 806 "       color.rgb *= AmbientColor + DiffuseColor * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0));\n"
 807 "       myhvec3 specularnormal = normalize(diffusenormal + myhvec3(normalize(EyeVector)));\n"
 808 "       color.rgb += myhvec3(texture2D(Texture_Gloss, TexCoord)) * SpecularColor * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 809 "# else\n"
 810 "#  ifdef USEDIFFUSE\n"
 811 "       // get the surface normal and light normal\n"
 812 "       myhvec3 surfacenormal = normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5));\n"
 813 "       myhvec3 diffusenormal = myhvec3(LightVector);\n"
 814 "\n"
 815 "       // calculate directional shading\n"
 816 "       color.rgb *= AmbientColor + DiffuseColor * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0));\n"
 817 "#  else\n"
 818 "       color.rgb *= AmbientColor;\n"
 819 "#  endif\n"
 820 "# endif\n"
 821 "\n"
 822 "       color.a *= TintColor.a;\n"
 823 "#endif // MODE_LIGHTDIRECTION\n"
 824 "\n"
 825 "\n"
 826 "\n"
 827 "\n"
 828 "#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 829 "       // deluxemap lightmapping using light vectors in modelspace (evil q3map2)\n"
 830 "\n"
 831 "       // get the surface normal and light normal\n"
 832 "       myhvec3 surfacenormal = normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5));\n"
 833 "\n"
 834 "       myhvec3 diffusenormal_modelspace = myhvec3(texture2D(Texture_Deluxemap, TexCoordLightmap)) - myhvec3(0.5);\n"
 835 "       myhvec3 diffusenormal = normalize(myhvec3(dot(diffusenormal_modelspace, myhvec3(VectorS)), dot(diffusenormal_modelspace, myhvec3(VectorT)), dot(diffusenormal_modelspace, myhvec3(VectorR))));\n"
 836 "       // calculate directional shading\n"
 837 "       myhvec3 tempcolor = color.rgb * (DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)));\n"
 838 "# ifdef USESPECULAR\n"
 839 "       myhvec3 specularnormal = myhvec3(normalize(diffusenormal + myhvec3(normalize(EyeVector))));\n"
 840 "       tempcolor += myhvec3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 841 "# endif\n"
 842 "\n"
 843 "       // apply lightmap color\n"
 844 "       color.rgb = color.rgb * AmbientScale + tempcolor * myhvec3(texture2D(Texture_Lightmap, TexCoordLightmap));\n"
 845 "\n"
 846 "       color *= TintColor;\n"
 847 "#endif // MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 848 "\n"
 849 "\n"
 850 "\n"
 851 "\n"
 852 "#ifdef MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n"
 853 "       // deluxemap lightmapping using light vectors in tangentspace (hmap2 -light)\n"
 854 "\n"
 855 "       // get the surface normal and light normal\n"
 856 "       myhvec3 surfacenormal = normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5));\n"
 857 "\n"
 858 "       myhvec3 diffusenormal = normalize(myhvec3(texture2D(Texture_Deluxemap, TexCoordLightmap)) - myhvec3(0.5));\n"
 859 "       // calculate directional shading\n"
 860 "       myhvec3 tempcolor = color.rgb * (DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)));\n"
 861 "# ifdef USESPECULAR\n"
 862 "       myhvec3 specularnormal = myhvec3(normalize(diffusenormal + myhvec3(normalize(EyeVector))));\n"
 863 "       tempcolor += myhvec3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 864 "# endif\n"
 865 "\n"
 866 "       // apply lightmap color\n"
 867 "       color.rgb = color.rgb * AmbientScale + tempcolor * myhvec3(texture2D(Texture_Lightmap, TexCoordLightmap));\n"
 868 "\n"
 869 "       color *= TintColor;\n"
 870 "#endif // MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n"
 871 "\n"
 872 "\n"
 873 "\n"
 874 "\n"
 875 "#ifdef MODE_LIGHTMAP\n"
 876 "       // apply lightmap color\n"
 877 "       color.rgb = color.rgb * myhvec3(texture2D(Texture_Lightmap, TexCoordLightmap)) * DiffuseScale + color.rgb * AmbientScale;\n"
 878 "\n"
 879 "       color *= TintColor;\n"
 880 "#endif // MODE_LIGHTMAP\n"
 881 "\n"
 882 "\n"
 883 "\n"
 884 "\n"
 885 "#ifdef MODE_VERTEXCOLOR\n"
 886 "       // apply lightmap color\n"
 887 "       color.rgb = color.rgb * myhvec3(gl_Color.rgb) * DiffuseScale + color.rgb * AmbientScale;\n"
 888 "\n"
 889 "       color *= TintColor;\n"
 890 "#endif // MODE_VERTEXCOLOR\n"
 891 "\n"
 892 "\n"
 893 "\n"
 894 "\n"
 895 "#ifdef MODE_FLATCOLOR\n"
 896 "       color *= TintColor;\n"
 897 "#endif // MODE_FLATCOLOR\n"
 898 "\n"
 899 "\n"
 900 "\n"
 901 "\n"
 902 "\n"
 903 "\n"
 904 "\n"
 905 "\n"
 906 "#ifdef USEGLOW\n"
 907 "       color.rgb += myhvec3(texture2D(Texture_Glow, TexCoord)) * GlowScale;\n"
 908 "#endif\n"
 909 "\n"
 910 "#ifdef USECONTRASTBOOST\n"
 911 "       color.rgb = color.rgb / (ContrastBoostCoeff * color.rgb + myhvec3(1, 1, 1));\n"
 912 "#endif\n"
 913 "\n"
 914 "       color.rgb *= SceneBrightness;\n"
 915 "\n"
 916 "       // apply fog after Contrastboost/SceneBrightness because its color is already modified appropriately\n"
 917 "#ifdef USEFOG\n"
 918 "       color.rgb = mix(FogColor, color.rgb, myhalf(texture2D(Texture_FogMask, myhvec2(length(EyeVectorModelSpace)*FogRangeRecip, 0.0))));\n"
 919 "#endif\n"
 920 "\n"
 921 "       // 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"
 922 "#ifdef USEREFLECTION\n"
 923 "       vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w);\n"
 924 "       //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
 925 "       vec4 ScreenTexCoord = ModelViewProjectionPosition.xyxy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect + vec3(normalize(myhvec3(texture2D(Texture_Normal, TexCoord)) - myhvec3(0.5))).xyxy * DistortScaleRefractReflect;\n"
 926 "       color.rgb = mix(color.rgb, myhvec3(texture2D(Texture_Reflection, ScreenTexCoord.zw)) * ReflectColor.rgb, ReflectColor.a);\n"
 927 "#endif\n"
 928 "\n"
 929 "       gl_FragColor = vec4(color);\n"
 930 "}\n"
 931 "#endif // MODE_REFRACTION\n"
 932 "#endif // MODE_WATER\n"
 933 "\n"
 934 "#endif // FRAGMENT_SHADER\n"
 935 ;
 936
 937 #define SHADERPERMUTATION_COLORMAPPING (1<<0) // indicates this is a colormapped skin
 938 #define SHADERPERMUTATION_CONTRASTBOOST (1<<1) // r_glsl_contrastboost boosts the contrast at low color levels (similar to gamma)
 939 #define SHADERPERMUTATION_FOG (1<<2) // tint the color by fog color or black if using additive blend mode
 940 #define SHADERPERMUTATION_CUBEFILTER (1<<3) // (lightsource) use cubemap light filter
 941 #define SHADERPERMUTATION_GLOW (1<<4) // (lightmap) blend in an additive glow texture
 942 #define SHADERPERMUTATION_DIFFUSE (1<<5) // (lightsource) whether to use directional shading
 943 #define SHADERPERMUTATION_SPECULAR (1<<6) // (lightsource or deluxemapping) render specular effects
 944 #define SHADERPERMUTATION_REFLECTION (1<<7) // normalmap-perturbed reflection of the scene infront of the surface, preformed as an overlay on the surface
 945 #define SHADERPERMUTATION_OFFSETMAPPING (1<<8) // adjust texcoords to roughly simulate a displacement mapped surface
 946 #define SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING (1<<9) // adjust texcoords to accurately simulate a displacement mapped surface (requires OFFSETMAPPING to also be set!)
 947 #define SHADERPERMUTATION_MODEBASE (1<<10) // multiplier for the SHADERMODE_ values to get a valid index
 948
 949 // NOTE: MUST MATCH ORDER OF SHADERPERMUTATION_* DEFINES!
 950 const char *shaderpermutationinfo[][2] =
 951 {
 952         {"#define USECOLORMAPPING\n", " colormapping"},
 953         {"#define USECONTRASTBOOST\n", " contrastboost"},
 954         {"#define USEFOG\n", " fog"},
 955         {"#define USECUBEFILTER\n", " cubefilter"},
 956         {"#define USEGLOW\n", " glow"},
 957         {"#define USEDIFFUSE\n", " diffuse"},
 958         {"#define USESPECULAR\n", " specular"},
 959         {"#define USEREFLECTION\n", " reflection"},
 960         {"#define USEOFFSETMAPPING\n", " offsetmapping"},
 961         {"#define USEOFFSETMAPPING_RELIEFMAPPING\n", " reliefmapping"},
 962         {NULL, NULL}
 963 };
 964
 965 // this enum is multiplied by SHADERPERMUTATION_MODEBASE
 966 typedef enum shadermode_e
 967 {
 968         SHADERMODE_FLATCOLOR, // (lightmap) modulate texture by uniform color (q1bsp, q3bsp)
 969         SHADERMODE_VERTEXCOLOR, // (lightmap) modulate texture by vertex colors (q3bsp)
 970         SHADERMODE_LIGHTMAP, // (lightmap) modulate texture by lightmap texture (q1bsp, q3bsp)
 971         SHADERMODE_LIGHTDIRECTIONMAP_MODELSPACE, // (lightmap) use directional pixel shading from texture containing modelspace light directions (q3bsp deluxemap)
 972         SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE, // (lightmap) use directional pixel shading from texture containing tangentspace light directions (q1bsp deluxemap)
 973         SHADERMODE_LIGHTDIRECTION, // (lightmap) use directional pixel shading from fixed light direction (q3bsp)
 974         SHADERMODE_LIGHTSOURCE, // (lightsource) use directional pixel shading from light source (rtlight)
 975         SHADERMODE_REFRACTION, // refract background (the material is rendered normally after this pass)
 976         SHADERMODE_WATER, // refract background and reflection (the material is rendered normally after this pass)
 977         SHADERMODE_COUNT
 978 }
 979 shadermode_t;
 980
 981 // NOTE: MUST MATCH ORDER OF SHADERMODE_* ENUMS!
 982 const char *shadermodeinfo[][2] =
 983 {
 984         {"#define MODE_FLATCOLOR\n", " flatcolor"},
 985         {"#define MODE_VERTEXCOLOR\n", " vertexcolor"},
 986         {"#define MODE_LIGHTMAP\n", " lightmap"},
 987         {"#define MODE_LIGHTDIRECTIONMAP_MODELSPACE\n", " lightdirectionmap_modelspace"},
 988         {"#define MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n", " lightdirectionmap_tangentspace"},
 989         {"#define MODE_LIGHTDIRECTION\n", " lightdirection"},
 990         {"#define MODE_LIGHTSOURCE\n", " lightsource"},
 991         {"#define MODE_REFRACTION\n", " refraction"},
 992         {"#define MODE_WATER\n", " water"},
 993         {NULL, NULL}
 994 };
 995
 996 #define SHADERPERMUTATION_INDICES (SHADERPERMUTATION_MODEBASE * SHADERMODE_COUNT)
 997
 998 typedef struct r_glsl_permutation_s
 999 {
1000         // indicates if we have tried compiling this permutation already
1001         qboolean compiled;
1002         // 0 if compilation failed
1003         int program;
1004         // locations of detected uniforms in program object, or -1 if not found
1005         int loc_Texture_Normal;
1006         int loc_Texture_Color;
1007         int loc_Texture_Gloss;
1008         int loc_Texture_Cube;
1009         int loc_Texture_Attenuation;
1010         int loc_Texture_FogMask;
1011         int loc_Texture_Pants;
1012         int loc_Texture_Shirt;
1013         int loc_Texture_Lightmap;
1014         int loc_Texture_Deluxemap;
1015         int loc_Texture_Glow;
1016         int loc_Texture_Refraction;
1017         int loc_Texture_Reflection;
1018         int loc_FogColor;
1019         int loc_LightPosition;
1020         int loc_EyePosition;
1021         int loc_LightColor;
1022         int loc_Color_Pants;
1023         int loc_Color_Shirt;
1024         int loc_FogRangeRecip;
1025         int loc_AmbientScale;
1026         int loc_DiffuseScale;
1027         int loc_SpecularScale;
1028         int loc_SpecularPower;
1029         int loc_GlowScale;
1030         int loc_SceneBrightness; // or: Scenebrightness * ContrastBoost
1031         int loc_OffsetMapping_Scale;
1032         int loc_TintColor;
1033         int loc_AmbientColor;
1034         int loc_DiffuseColor;
1035         int loc_SpecularColor;
1036         int loc_LightDir;
1037         int loc_ContrastBoostCoeff; // 1 - 1/ContrastBoost
1038         int loc_DistortScaleRefractReflect;
1039         int loc_ScreenScaleRefractReflect;
1040         int loc_ScreenCenterRefractReflect;
1041         int loc_RefractColor;
1042         int loc_ReflectColor;
1043         int loc_ReflectFactor;
1044         int loc_ReflectOffset;
1045 }
1046 r_glsl_permutation_t;
1047
1048 // information about each possible shader permutation
1049 r_glsl_permutation_t r_glsl_permutations[SHADERPERMUTATION_INDICES];
1050 // currently selected permutation
1051 r_glsl_permutation_t *r_glsl_permutation;
1052
1053 // these are additional flags used only by R_GLSL_CompilePermutation
1054 #define SHADERTYPE_USES_VERTEXSHADER (1<<0)
1055 #define SHADERTYPE_USES_GEOMETRYSHADER (1<<1)
1056 #define SHADERTYPE_USES_FRAGMENTSHADER (1<<2)
1057
1058 static void R_GLSL_CompilePermutation(const char *filename, int permutation, int shadertype)
1059 {
1060         int i;
1061         qboolean shaderfound;
1062         r_glsl_permutation_t *p = r_glsl_permutations + permutation;
1063         int vertstrings_count;
1064         int geomstrings_count;
1065         int fragstrings_count;
1066         char *shaderstring;
1067         const char *vertstrings_list[32+1];
1068         const char *geomstrings_list[32+1];
1069         const char *fragstrings_list[32+1];
1070         char permutationname[256];
1071         if (p->compiled)
1072                 return;
1073         p->compiled = true;
1074         p->program = 0;
1075         vertstrings_list[0] = "#define VERTEX_SHADER\n";
1076         geomstrings_list[0] = "#define GEOMETRY_SHADER\n";
1077         fragstrings_list[0] = "#define FRAGMENT_SHADER\n";
1078         vertstrings_count = 1;
1079         geomstrings_count = 1;
1080         fragstrings_count = 1;
1081         permutationname[0] = 0;
1082         i = permutation / SHADERPERMUTATION_MODEBASE;
1083         vertstrings_list[vertstrings_count++] = shadermodeinfo[i][0];
1084         geomstrings_list[geomstrings_count++] = shadermodeinfo[i][0];
1085         fragstrings_list[fragstrings_count++] = shadermodeinfo[i][0];
1086         strlcat(permutationname, shadermodeinfo[i][1], sizeof(permutationname));
1087         for (i = 0;shaderpermutationinfo[i][0];i++)
1088         {
1089                 if (permutation & (1<<i))
1090                 {
1091                         vertstrings_list[vertstrings_count++] = shaderpermutationinfo[i][0];
1092                         geomstrings_list[geomstrings_count++] = shaderpermutationinfo[i][0];
1093                         fragstrings_list[fragstrings_count++] = shaderpermutationinfo[i][0];
1094                         strlcat(permutationname, shaderpermutationinfo[i][1], sizeof(permutationname));
1095                 }
1096                 else
1097                 {
1098                         // keep line numbers correct
1099                         vertstrings_list[vertstrings_count++] = "\n";
1100                         geomstrings_list[geomstrings_count++] = "\n";
1101                         fragstrings_list[fragstrings_count++] = "\n";
1102                 }
1103         }
1104         shaderstring = (char *)FS_LoadFile(filename, r_main_mempool, false, NULL);
1105         shaderfound = false;
1106         if (shaderstring)
1107         {
1108                 Con_DPrint("from disk... ");
1109                 vertstrings_list[vertstrings_count++] = shaderstring;
1110                 geomstrings_list[geomstrings_count++] = shaderstring;
1111                 fragstrings_list[fragstrings_count++] = shaderstring;
1112                 shaderfound = true;
1113         }
1114         else if (!strcmp(filename, "glsl/default.glsl"))
1115         {
1116                 vertstrings_list[vertstrings_count++] = builtinshaderstring;
1117                 geomstrings_list[geomstrings_count++] = builtinshaderstring;
1118                 fragstrings_list[fragstrings_count++] = builtinshaderstring;
1119                 shaderfound = true;
1120         }
1121         // clear any lists that are not needed by this shader
1122         if (!(shadertype & SHADERTYPE_USES_VERTEXSHADER))
1123                 vertstrings_count = 0;
1124         if (!(shadertype & SHADERTYPE_USES_GEOMETRYSHADER))
1125                 geomstrings_count = 0;
1126         if (!(shadertype & SHADERTYPE_USES_FRAGMENTSHADER))
1127                 fragstrings_count = 0;
1128         // compile the shader program
1129         if (shaderfound && vertstrings_count + geomstrings_count + fragstrings_count)
1130                 p->program = GL_Backend_CompileProgram(vertstrings_count, vertstrings_list, geomstrings_count, geomstrings_list, fragstrings_count, fragstrings_list);
1131         if (p->program)
1132         {
1133                 CHECKGLERROR
1134                 qglUseProgramObjectARB(p->program);CHECKGLERROR
1135                 // look up all the uniform variable names we care about, so we don't
1136                 // have to look them up every time we set them
1137                 p->loc_Texture_Normal      = qglGetUniformLocationARB(p->program, "Texture_Normal");
1138                 p->loc_Texture_Color       = qglGetUniformLocationARB(p->program, "Texture_Color");
1139                 p->loc_Texture_Gloss       = qglGetUniformLocationARB(p->program, "Texture_Gloss");
1140                 p->loc_Texture_Cube        = qglGetUniformLocationARB(p->program, "Texture_Cube");
1141                 p->loc_Texture_Attenuation = qglGetUniformLocationARB(p->program, "Texture_Attenuation");
1142                 p->loc_Texture_FogMask     = qglGetUniformLocationARB(p->program, "Texture_FogMask");
1143                 p->loc_Texture_Pants       = qglGetUniformLocationARB(p->program, "Texture_Pants");
1144                 p->loc_Texture_Shirt       = qglGetUniformLocationARB(p->program, "Texture_Shirt");
1145                 p->loc_Texture_Lightmap    = qglGetUniformLocationARB(p->program, "Texture_Lightmap");
1146                 p->loc_Texture_Deluxemap   = qglGetUniformLocationARB(p->program, "Texture_Deluxemap");
1147                 p->loc_Texture_Glow        = qglGetUniformLocationARB(p->program, "Texture_Glow");
1148                 p->loc_Texture_Refraction  = qglGetUniformLocationARB(p->program, "Texture_Refraction");
1149                 p->loc_Texture_Reflection  = qglGetUniformLocationARB(p->program, "Texture_Reflection");
1150                 p->loc_FogColor            = qglGetUniformLocationARB(p->program, "FogColor");
1151                 p->loc_LightPosition       = qglGetUniformLocationARB(p->program, "LightPosition");
1152                 p->loc_EyePosition         = qglGetUniformLocationARB(p->program, "EyePosition");
1153                 p->loc_LightColor          = qglGetUniformLocationARB(p->program, "LightColor");
1154                 p->loc_Color_Pants         = qglGetUniformLocationARB(p->program, "Color_Pants");
1155                 p->loc_Color_Shirt         = qglGetUniformLocationARB(p->program, "Color_Shirt");
1156                 p->loc_FogRangeRecip       = qglGetUniformLocationARB(p->program, "FogRangeRecip");
1157                 p->loc_AmbientScale        = qglGetUniformLocationARB(p->program, "AmbientScale");
1158                 p->loc_DiffuseScale        = qglGetUniformLocationARB(p->program, "DiffuseScale");
1159                 p->loc_SpecularPower       = qglGetUniformLocationARB(p->program, "SpecularPower");
1160                 p->loc_SpecularScale       = qglGetUniformLocationARB(p->program, "SpecularScale");
1161                 p->loc_GlowScale           = qglGetUniformLocationARB(p->program, "GlowScale");
1162                 p->loc_SceneBrightness     = qglGetUniformLocationARB(p->program, "SceneBrightness");
1163                 p->loc_OffsetMapping_Scale = qglGetUniformLocationARB(p->program, "OffsetMapping_Scale");
1164                 p->loc_TintColor       = qglGetUniformLocationARB(p->program, "TintColor");
1165                 p->loc_AmbientColor        = qglGetUniformLocationARB(p->program, "AmbientColor");
1166                 p->loc_DiffuseColor        = qglGetUniformLocationARB(p->program, "DiffuseColor");
1167                 p->loc_SpecularColor       = qglGetUniformLocationARB(p->program, "SpecularColor");
1168                 p->loc_LightDir            = qglGetUniformLocationARB(p->program, "LightDir");
1169                 p->loc_ContrastBoostCoeff  = qglGetUniformLocationARB(p->program, "ContrastBoostCoeff");
1170                 p->loc_DistortScaleRefractReflect = qglGetUniformLocationARB(p->program, "DistortScaleRefractReflect");
1171                 p->loc_ScreenScaleRefractReflect = qglGetUniformLocationARB(p->program, "ScreenScaleRefractReflect");
1172                 p->loc_ScreenCenterRefractReflect = qglGetUniformLocationARB(p->program, "ScreenCenterRefractReflect");
1173                 p->loc_RefractColor        = qglGetUniformLocationARB(p->program, "RefractColor");
1174                 p->loc_ReflectColor        = qglGetUniformLocationARB(p->program, "ReflectColor");
1175                 p->loc_ReflectFactor       = qglGetUniformLocationARB(p->program, "ReflectFactor");
1176                 p->loc_ReflectOffset       = qglGetUniformLocationARB(p->program, "ReflectOffset");
1177                 // initialize the samplers to refer to the texture units we use
1178                 if (p->loc_Texture_Normal >= 0)    qglUniform1iARB(p->loc_Texture_Normal, 0);
1179                 if (p->loc_Texture_Color >= 0)     qglUniform1iARB(p->loc_Texture_Color, 1);
1180                 if (p->loc_Texture_Gloss >= 0)     qglUniform1iARB(p->loc_Texture_Gloss, 2);
1181                 if (p->loc_Texture_Cube >= 0)      qglUniform1iARB(p->loc_Texture_Cube, 3);
1182                 if (p->loc_Texture_FogMask >= 0)   qglUniform1iARB(p->loc_Texture_FogMask, 4);
1183                 if (p->loc_Texture_Pants >= 0)     qglUniform1iARB(p->loc_Texture_Pants, 5);
1184                 if (p->loc_Texture_Shirt >= 0)     qglUniform1iARB(p->loc_Texture_Shirt, 6);
1185                 if (p->loc_Texture_Lightmap >= 0)  qglUniform1iARB(p->loc_Texture_Lightmap, 7);
1186                 if (p->loc_Texture_Deluxemap >= 0) qglUniform1iARB(p->loc_Texture_Deluxemap, 8);
1187                 if (p->loc_Texture_Glow >= 0)      qglUniform1iARB(p->loc_Texture_Glow, 9);
1188                 if (p->loc_Texture_Attenuation >= 0) qglUniform1iARB(p->loc_Texture_Attenuation, 10);
1189                 if (p->loc_Texture_Refraction >= 0) qglUniform1iARB(p->loc_Texture_Refraction, 11);
1190                 if (p->loc_Texture_Reflection >= 0) qglUniform1iARB(p->loc_Texture_Reflection, 12);
1191                 CHECKGLERROR
1192                 qglUseProgramObjectARB(0);CHECKGLERROR
1193                 if (developer.integer)
1194                         Con_Printf("GLSL shader %s :%s compiled.\n", filename, permutationname);
1195         }
1196         else
1197         {
1198                 if (developer.integer)
1199                         Con_Printf("GLSL shader %s :%s failed!  source code line offset for above errors is %i.\n", permutationname, filename, -(vertstrings_count - 1));
1200                 else
1201                         Con_Printf("GLSL shader %s :%s failed!  some features may not work properly.\n", permutationname, filename);
1202         }
1203         if (shaderstring)
1204                 Mem_Free(shaderstring);
1205 }
1206
1207 void R_GLSL_Restart_f(void)
1208 {
1209         int i;
1210         for (i = 0;i < SHADERPERMUTATION_INDICES;i++)
1211                 if (r_glsl_permutations[i].program)
1212                         GL_Backend_FreeProgram(r_glsl_permutations[i].program);
1213         memset(r_glsl_permutations, 0, sizeof(r_glsl_permutations));
1214 }
1215
1216 void R_GLSL_DumpShader_f(void)
1217 {
1218         int i;
1219
1220         qfile_t *file = FS_Open("glsl/default.glsl", "w", false, false);
1221         if(!file)
1222         {
1223                 Con_Printf("failed to write to glsl/default.glsl\n");
1224                 return;
1225         }
1226
1227         FS_Print(file, "// The engine may define the following macros:\n");
1228         FS_Print(file, "// #define VERTEX_SHADER\n// #define GEOMETRY_SHADER\n// #define FRAGMENT_SHADER\n");
1229         for (i = 0;shadermodeinfo[i][0];i++)
1230                 FS_Printf(file, "// %s", shadermodeinfo[i][0]);
1231         for (i = 0;shaderpermutationinfo[i][0];i++)
1232                 FS_Printf(file, "// %s", shaderpermutationinfo[i][0]);
1233         FS_Print(file, "\n");
1234         FS_Print(file, builtinshaderstring);
1235         FS_Close(file);
1236
1237         Con_Printf("glsl/default.glsl written\n");
1238 }
1239
1240 extern rtexture_t *r_shadow_attenuationgradienttexture;
1241 extern rtexture_t *r_shadow_attenuation2dtexture;
1242 extern rtexture_t *r_shadow_attenuation3dtexture;
1243 int R_SetupSurfaceShader(const vec3_t lightcolorbase, qboolean modellighting, float ambientscale, float diffusescale, float specularscale, rsurfacepass_t rsurfacepass)
1244 {
1245         // select a permutation of the lighting shader appropriate to this
1246         // combination of texture, entity, light source, and fogging, only use the
1247         // minimum features necessary to avoid wasting rendering time in the
1248         // fragment shader on features that are not being used
1249         const char *shaderfilename = NULL;
1250         unsigned int permutation = 0;
1251         unsigned int shadertype = 0;
1252         shadermode_t mode = 0;
1253         r_glsl_permutation = NULL;
1254         shaderfilename = "glsl/default.glsl";
1255         shadertype = SHADERTYPE_USES_VERTEXSHADER | SHADERTYPE_USES_FRAGMENTSHADER;
1256         // TODO: implement geometry-shader based shadow volumes someday
1257         if (r_glsl_offsetmapping.integer)
1258         {
1259                 permutation |= SHADERPERMUTATION_OFFSETMAPPING;
1260                 if (r_glsl_offsetmapping_reliefmapping.integer)
1261                         permutation |= SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING;
1262         }
1263         if (rsurfacepass == RSURFPASS_BACKGROUND)
1264         {
1265                 // distorted background
1266                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_WATERSHADER)
1267                         mode = SHADERMODE_WATER;
1268                 else
1269                         mode = SHADERMODE_REFRACTION;
1270         }
1271         else if (rsurfacepass == RSURFPASS_RTLIGHT)
1272         {
1273                 // light source
1274                 mode = SHADERMODE_LIGHTSOURCE;
1275                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
1276                         permutation |= SHADERPERMUTATION_CUBEFILTER;
1277                 if (diffusescale > 0)
1278                         permutation |= SHADERPERMUTATION_DIFFUSE;
1279                 if (specularscale > 0)
1280                         permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1281                 if (r_refdef.fogenabled)
1282                         permutation |= SHADERPERMUTATION_FOG;
1283                 if (rsurface.texture->colormapping)
1284                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1285                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1286                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1287         }
1288         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
1289         {
1290                 // unshaded geometry (fullbright or ambient model lighting)
1291                 mode = SHADERMODE_FLATCOLOR;
1292                 if (rsurface.texture->currentskinframe->glow)
1293                         permutation |= SHADERPERMUTATION_GLOW;
1294                 if (r_refdef.fogenabled)
1295                         permutation |= SHADERPERMUTATION_FOG;
1296                 if (rsurface.texture->colormapping)
1297                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1298                 if (r_glsl_offsetmapping.integer)
1299                 {
1300                         permutation |= SHADERPERMUTATION_OFFSETMAPPING;
1301                         if (r_glsl_offsetmapping_reliefmapping.integer)
1302                                 permutation |= SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING;
1303                 }
1304                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1305                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1306                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1307                         permutation |= SHADERPERMUTATION_REFLECTION;
1308         }
1309         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT_DIRECTIONAL)
1310         {
1311                 // directional model lighting
1312                 mode = SHADERMODE_LIGHTDIRECTION;
1313                 if (rsurface.texture->currentskinframe->glow)
1314                         permutation |= SHADERPERMUTATION_GLOW;
1315                 permutation |= SHADERPERMUTATION_DIFFUSE;
1316                 if (specularscale > 0)
1317                         permutation |= SHADERPERMUTATION_SPECULAR;
1318                 if (r_refdef.fogenabled)
1319                         permutation |= SHADERPERMUTATION_FOG;
1320                 if (rsurface.texture->colormapping)
1321                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1322                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1323                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1324                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1325                         permutation |= SHADERPERMUTATION_REFLECTION;
1326         }
1327         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
1328         {
1329                 // ambient model lighting
1330                 mode = SHADERMODE_LIGHTDIRECTION;
1331                 if (rsurface.texture->currentskinframe->glow)
1332                         permutation |= SHADERPERMUTATION_GLOW;
1333                 if (r_refdef.fogenabled)
1334                         permutation |= SHADERPERMUTATION_FOG;
1335                 if (rsurface.texture->colormapping)
1336                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1337                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1338                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1339                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1340                         permutation |= SHADERPERMUTATION_REFLECTION;
1341         }
1342         else
1343         {
1344                 // lightmapped wall
1345                 if (r_glsl_deluxemapping.integer >= 1 && rsurface.uselightmaptexture && r_refdef.worldmodel && r_refdef.worldmodel->brushq3.deluxemapping)
1346                 {
1347                         // deluxemapping (light direction texture)
1348                         if (rsurface.uselightmaptexture && r_refdef.worldmodel && r_refdef.worldmodel->brushq3.deluxemapping && r_refdef.worldmodel->brushq3.deluxemapping_modelspace)
1349                                 mode = SHADERMODE_LIGHTDIRECTIONMAP_MODELSPACE;
1350                         else
1351                                 mode = SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE;
1352                         if (specularscale > 0)
1353                                 permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1354                 }
1355                 else if (r_glsl_deluxemapping.integer >= 2)
1356                 {
1357                         // fake deluxemapping (uniform light direction in tangentspace)
1358                         mode = SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE;
1359                         if (specularscale > 0)
1360                                 permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1361                 }
1362                 else if (rsurface.uselightmaptexture)
1363                 {
1364                         // ordinary lightmapping (q1bsp, q3bsp)
1365                         mode = SHADERMODE_LIGHTMAP;
1366                 }
1367                 else
1368                 {
1369                         // ordinary vertex coloring (q3bsp)
1370                         mode = SHADERMODE_VERTEXCOLOR;
1371                 }
1372                 if (rsurface.texture->currentskinframe->glow)
1373                         permutation |= SHADERPERMUTATION_GLOW;
1374                 if (r_refdef.fogenabled)
1375                         permutation |= SHADERPERMUTATION_FOG;
1376                 if (rsurface.texture->colormapping)
1377                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1378                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1379                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1380                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1381                         permutation |= SHADERPERMUTATION_REFLECTION;
1382         }
1383         permutation |= mode * SHADERPERMUTATION_MODEBASE;
1384         if (!r_glsl_permutations[permutation].program)
1385         {
1386                 if (!r_glsl_permutations[permutation].compiled)
1387                         R_GLSL_CompilePermutation(shaderfilename, permutation, shadertype);
1388                 if (!r_glsl_permutations[permutation].program)
1389                 {
1390                         // remove features until we find a valid permutation
1391                         unsigned int i;
1392                         for (i = (SHADERPERMUTATION_MODEBASE >> 1);;i>>=1)
1393                         {
1394                                 if (!i)
1395                                 {
1396                                         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");
1397                                         Cvar_SetValueQuick(&r_glsl, 0);
1398                                         return 0; // no bit left to clear
1399                                 }
1400                                 // reduce i more quickly whenever it would not remove any bits
1401                                 if (!(permutation & i))
1402                                         continue;
1403                                 permutation &= ~i;
1404                                 if (!r_glsl_permutations[permutation].compiled)
1405                                         R_GLSL_CompilePermutation(shaderfilename, permutation, shadertype);
1406                                 if (r_glsl_permutations[permutation].program)
1407                                         break;
1408                         }
1409                 }
1410         }
1411         r_glsl_permutation = r_glsl_permutations + permutation;
1412         CHECKGLERROR
1413         qglUseProgramObjectARB(r_glsl_permutation->program);CHECKGLERROR
1414         if (mode == SHADERMODE_LIGHTSOURCE)
1415         {
1416                 if (r_glsl_permutation->loc_LightPosition >= 0) qglUniform3fARB(r_glsl_permutation->loc_LightPosition, rsurface.entitylightorigin[0], rsurface.entitylightorigin[1], rsurface.entitylightorigin[2]);
1417                 if (permutation & SHADERPERMUTATION_DIFFUSE)
1418                 {
1419                         if (r_glsl_permutation->loc_LightColor >= 0) qglUniform3fARB(r_glsl_permutation->loc_LightColor, lightcolorbase[0], lightcolorbase[1], lightcolorbase[2]);
1420                         if (r_glsl_permutation->loc_AmbientScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, ambientscale);
1421                         if (r_glsl_permutation->loc_DiffuseScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, diffusescale);
1422                         if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, specularscale);
1423                 }
1424                 else
1425                 {
1426                         // ambient only is simpler
1427                         if (r_glsl_permutation->loc_LightColor >= 0) qglUniform3fARB(r_glsl_permutation->loc_LightColor, lightcolorbase[0] * ambientscale, lightcolorbase[1] * ambientscale, lightcolorbase[2] * ambientscale);
1428                         if (r_glsl_permutation->loc_AmbientScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, 1);
1429                         if (r_glsl_permutation->loc_DiffuseScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, 0);
1430                         if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, 0);
1431                 }
1432         }
1433         else if (mode == SHADERMODE_LIGHTDIRECTION)
1434         {
1435                 if (r_glsl_permutation->loc_AmbientColor >= 0)
1436                         qglUniform3fARB(r_glsl_permutation->loc_AmbientColor , rsurface.modellight_ambient[0] * ambientscale  * rsurface.texture->lightmapcolor[0] * 0.5f, rsurface.modellight_ambient[1] * ambientscale  * rsurface.texture->lightmapcolor[1] * 0.5f, rsurface.modellight_ambient[2] * ambientscale  * rsurface.texture->lightmapcolor[2] * 0.5f);
1437                 if (r_glsl_permutation->loc_DiffuseColor >= 0)
1438                         qglUniform3fARB(r_glsl_permutation->loc_DiffuseColor , rsurface.modellight_diffuse[0] * diffusescale  * rsurface.texture->lightmapcolor[0] * 0.5f, rsurface.modellight_diffuse[1] * diffusescale  * rsurface.texture->lightmapcolor[1] * 0.5f, rsurface.modellight_diffuse[2] * diffusescale  * rsurface.texture->lightmapcolor[2] * 0.5f);
1439                 if (r_glsl_permutation->loc_SpecularColor >= 0)
1440                         qglUniform3fARB(r_glsl_permutation->loc_SpecularColor, rsurface.modellight_diffuse[0] * specularscale * rsurface.texture->lightmapcolor[0] * 0.5f, rsurface.modellight_diffuse[1] * specularscale * rsurface.texture->lightmapcolor[1] * 0.5f, rsurface.modellight_diffuse[2] * specularscale * rsurface.texture->lightmapcolor[2] * 0.5f);
1441                 if (r_glsl_permutation->loc_LightDir >= 0)
1442                         qglUniform3fARB(r_glsl_permutation->loc_LightDir, rsurface.modellight_lightdir[0], rsurface.modellight_lightdir[1], rsurface.modellight_lightdir[2]);
1443         }
1444         else
1445         {
1446                 if (r_glsl_permutation->loc_AmbientScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, r_ambient.value * 1.0f / 128.0f);
1447                 if (r_glsl_permutation->loc_DiffuseScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, r_refdef.lightmapintensity);
1448                 if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, r_refdef.lightmapintensity * specularscale);
1449         }
1450         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]);
1451         if (r_glsl_permutation->loc_GlowScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_GlowScale, r_hdr_glowintensity.value);
1452         if (r_glsl_permutation->loc_ContrastBoostCoeff >= 0)
1453         {
1454                 // The formula used is actually:
1455                 //   color.rgb *= ContrastBoost / ((ContrastBoost - 1) * color.rgb + 1);
1456                 //   color.rgb *= SceneBrightness;
1457                 // simplified:
1458                 //   color.rgb = [[SceneBrightness * ContrastBoost]] * color.rgb / ([[ContrastBoost - 1]] * color.rgb + 1);
1459                 // and do [[calculations]] here in the engine
1460                 qglUniform1fARB(r_glsl_permutation->loc_ContrastBoostCoeff, r_glsl_contrastboost.value - 1);
1461                 if (r_glsl_permutation->loc_SceneBrightness >= 0) qglUniform1fARB(r_glsl_permutation->loc_SceneBrightness, r_view.colorscale * r_glsl_contrastboost.value);
1462         }
1463         else
1464                 if (r_glsl_permutation->loc_SceneBrightness >= 0) qglUniform1fARB(r_glsl_permutation->loc_SceneBrightness, r_view.colorscale);
1465         if (r_glsl_permutation->loc_FogColor >= 0)
1466         {
1467                 // additive passes are only darkened by fog, not tinted
1468                 if (rsurface.rtlight || (rsurface.texture->currentmaterialflags & MATERIALFLAG_ADD))
1469                         qglUniform3fARB(r_glsl_permutation->loc_FogColor, 0, 0, 0);
1470                 else
1471                         qglUniform3fARB(r_glsl_permutation->loc_FogColor, r_refdef.fogcolor[0], r_refdef.fogcolor[1], r_refdef.fogcolor[2]);
1472         }
1473         if (r_glsl_permutation->loc_EyePosition >= 0) qglUniform3fARB(r_glsl_permutation->loc_EyePosition, rsurface.modelorg[0], rsurface.modelorg[1], rsurface.modelorg[2]);
1474         if (r_glsl_permutation->loc_Color_Pants >= 0)
1475         {
1476                 if (rsurface.texture->currentskinframe->pants)
1477                         qglUniform3fARB(r_glsl_permutation->loc_Color_Pants, rsurface.colormap_pantscolor[0], rsurface.colormap_pantscolor[1], rsurface.colormap_pantscolor[2]);
1478                 else
1479                         qglUniform3fARB(r_glsl_permutation->loc_Color_Pants, 0, 0, 0);
1480         }
1481         if (r_glsl_permutation->loc_Color_Shirt >= 0)
1482         {
1483                 if (rsurface.texture->currentskinframe->shirt)
1484                         qglUniform3fARB(r_glsl_permutation->loc_Color_Shirt, rsurface.colormap_shirtcolor[0], rsurface.colormap_shirtcolor[1], rsurface.colormap_shirtcolor[2]);
1485                 else
1486                         qglUniform3fARB(r_glsl_permutation->loc_Color_Shirt, 0, 0, 0);
1487         }
1488         if (r_glsl_permutation->loc_FogRangeRecip >= 0) qglUniform1fARB(r_glsl_permutation->loc_FogRangeRecip, r_refdef.fograngerecip);
1489         if (r_glsl_permutation->loc_SpecularPower >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularPower, rsurface.texture->specularpower);
1490         if (r_glsl_permutation->loc_OffsetMapping_Scale >= 0) qglUniform1fARB(r_glsl_permutation->loc_OffsetMapping_Scale, r_glsl_offsetmapping_scale.value);
1491         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);
1492         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]);
1493         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]);
1494         if (r_glsl_permutation->loc_RefractColor >= 0) qglUniform4fvARB(r_glsl_permutation->loc_RefractColor, 1, rsurface.texture->refractcolor4f);
1495         if (r_glsl_permutation->loc_ReflectColor >= 0) qglUniform4fvARB(r_glsl_permutation->loc_ReflectColor, 1, rsurface.texture->reflectcolor4f);
1496         if (r_glsl_permutation->loc_ReflectFactor >= 0) qglUniform1fARB(r_glsl_permutation->loc_ReflectFactor, rsurface.texture->reflectmax - rsurface.texture->reflectmin);
1497         if (r_glsl_permutation->loc_ReflectOffset >= 0) qglUniform1fARB(r_glsl_permutation->loc_ReflectOffset, rsurface.texture->reflectmin);
1498         CHECKGLERROR
1499         return permutation;
1500 }
1501
1502 #define SKINFRAME_HASH 1024
1503
1504 struct
1505 {
1506         int loadsequence; // incremented each level change
1507         memexpandablearray_t array;
1508         skinframe_t *hash[SKINFRAME_HASH];
1509 }
1510 r_skinframe;
1511
1512 void R_SkinFrame_PrepareForPurge(void)
1513 {
1514         r_skinframe.loadsequence++;
1515         // wrap it without hitting zero
1516         if (r_skinframe.loadsequence >= 200)
1517                 r_skinframe.loadsequence = 1;
1518 }
1519
1520 void R_SkinFrame_MarkUsed(skinframe_t *skinframe)
1521 {
1522         if (!skinframe)
1523                 return;
1524         // mark the skinframe as used for the purging code
1525         skinframe->loadsequence = r_skinframe.loadsequence;
1526 }
1527
1528 void R_SkinFrame_Purge(void)
1529 {
1530         int i;
1531         skinframe_t *s;
1532         for (i = 0;i < SKINFRAME_HASH;i++)
1533         {
1534                 for (s = r_skinframe.hash[i];s;s = s->next)
1535                 {
1536                         if (s->loadsequence && s->loadsequence != r_skinframe.loadsequence)
1537                         {
1538                                 if (s->merged == s->base)
1539                                         s->merged = NULL;
1540                                 // FIXME: maybe pass a pointer to the pointer to R_PurgeTexture and reset it to NULL inside? [11/29/2007 Black]
1541                                 R_PurgeTexture(s->stain );s->stain  = NULL;
1542                                 R_PurgeTexture(s->merged);s->merged = NULL;
1543                                 R_PurgeTexture(s->base  );s->base   = NULL;
1544                                 R_PurgeTexture(s->pants );s->pants  = NULL;
1545                                 R_PurgeTexture(s->shirt );s->shirt  = NULL;
1546                                 R_PurgeTexture(s->nmap  );s->nmap   = NULL;
1547                                 R_PurgeTexture(s->gloss );s->gloss  = NULL;
1548                                 R_PurgeTexture(s->glow  );s->glow   = NULL;
1549                                 R_PurgeTexture(s->fog   );s->fog    = NULL;
1550                                 s->loadsequence = 0;
1551                         }
1552                 }
1553         }
1554 }
1555
1556 skinframe_t *R_SkinFrame_FindNextByName( skinframe_t *last, const char *name ) {
1557         skinframe_t *item;
1558         char basename[MAX_QPATH];
1559
1560         Image_StripImageExtension(name, basename, sizeof(basename));
1561
1562         if( last == NULL ) {
1563                 int hashindex;
1564                 hashindex = CRC_Block((unsigned char *)basename, strlen(basename)) & (SKINFRAME_HASH - 1);
1565                 item = r_skinframe.hash[hashindex];
1566         } else {
1567                 item = last->next;
1568         }
1569
1570         // linearly search through the hash bucket
1571         for( ; item ; item = item->next ) {
1572                 if( !strcmp( item->basename, basename ) ) {
1573                         return item;
1574                 }
1575         }
1576         return NULL;
1577 }
1578
1579 skinframe_t *R_SkinFrame_Find(const char *name, int textureflags, int comparewidth, int compareheight, int comparecrc, qboolean add)
1580 {
1581         skinframe_t *item;
1582         int hashindex;
1583         char basename[MAX_QPATH];
1584
1585         Image_StripImageExtension(name, basename, sizeof(basename));
1586
1587         hashindex = CRC_Block((unsigned char *)basename, strlen(basename)) & (SKINFRAME_HASH - 1);
1588         for (item = r_skinframe.hash[hashindex];item;item = item->next)
1589                 if (!strcmp(item->basename, basename) && item->textureflags == textureflags && item->comparewidth == comparewidth && item->compareheight == compareheight && item->comparecrc == comparecrc)
1590                         break;
1591
1592         if (!item) {
1593                 rtexture_t *dyntexture;
1594                 // check whether its a dynamic texture
1595                 dyntexture = CL_GetDynTexture( basename );
1596                 if (!add && !dyntexture)
1597                         return NULL;
1598                 item = (skinframe_t *)Mem_ExpandableArray_AllocRecord(&r_skinframe.array);
1599                 memset(item, 0, sizeof(*item));
1600                 strlcpy(item->basename, basename, sizeof(item->basename));
1601                 item->base = dyntexture; // either NULL or dyntexture handle
1602                 item->textureflags = textureflags;
1603                 item->comparewidth = comparewidth;
1604                 item->compareheight = compareheight;
1605                 item->comparecrc = comparecrc;
1606                 item->next = r_skinframe.hash[hashindex];
1607                 r_skinframe.hash[hashindex] = item;
1608         }
1609         else if( item->base == NULL )
1610         {
1611                 rtexture_t *dyntexture;
1612                 // check whether its a dynamic texture
1613                 // 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]
1614                 dyntexture = CL_GetDynTexture( basename );
1615                 item->base = dyntexture; // either NULL or dyntexture handle
1616         }
1617
1618         R_SkinFrame_MarkUsed(item);
1619         return item;
1620 }
1621
1622 skinframe_t *R_SkinFrame_LoadExternal(const char *name, int textureflags, qboolean complain)
1623 {
1624         // FIXME: it should be possible to disable loading various layers using
1625         // cvars, to prevent wasted loading time and memory usage if the user does
1626         // not want them
1627         qboolean loadnormalmap = true;
1628         qboolean loadgloss = true;
1629         qboolean loadpantsandshirt = true;
1630         qboolean loadglow = true;
1631         int j;
1632         unsigned char *pixels;
1633         unsigned char *bumppixels;
1634         unsigned char *basepixels = NULL;
1635         int basepixels_width;
1636         int basepixels_height;
1637         skinframe_t *skinframe;
1638
1639         if (cls.state == ca_dedicated)
1640                 return NULL;
1641
1642         // return an existing skinframe if already loaded
1643         // if loading of the first image fails, don't make a new skinframe as it
1644         // would cause all future lookups of this to be missing
1645         skinframe = R_SkinFrame_Find(name, textureflags, 0, 0, 0, false);
1646         if (skinframe && skinframe->base)
1647                 return skinframe;
1648
1649         basepixels = loadimagepixelsbgra(name, complain, true);
1650         if (basepixels == NULL)
1651                 return NULL;
1652
1653         // we've got some pixels to store, so really allocate this new texture now
1654         if (!skinframe)
1655                 skinframe = R_SkinFrame_Find(name, textureflags, 0, 0, 0, true);
1656         skinframe->stain = NULL;
1657         skinframe->merged = NULL;
1658         skinframe->base = r_texture_notexture;
1659         skinframe->pants = NULL;
1660         skinframe->shirt = NULL;
1661         skinframe->nmap = r_texture_blanknormalmap;
1662         skinframe->gloss = NULL;
1663         skinframe->glow = NULL;
1664         skinframe->fog = NULL;
1665
1666         basepixels_width = image_width;
1667         basepixels_height = image_height;
1668         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);
1669
1670         if (textureflags & TEXF_ALPHA)
1671         {
1672                 for (j = 3;j < basepixels_width * basepixels_height * 4;j += 4)
1673                         if (basepixels[j] < 255)
1674                                 break;
1675                 if (j < basepixels_width * basepixels_height * 4)
1676                 {
1677                         // has transparent pixels
1678                         pixels = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
1679                         for (j = 0;j < image_width * image_height * 4;j += 4)
1680                         {
1681                                 pixels[j+0] = 255;
1682                                 pixels[j+1] = 255;
1683                                 pixels[j+2] = 255;
1684                                 pixels[j+3] = basepixels[j+3];
1685                         }
1686                         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);
1687                         Mem_Free(pixels);
1688                 }
1689         }
1690
1691         // _norm is the name used by tenebrae and has been adopted as standard
1692         if (loadnormalmap)
1693         {
1694                 if ((pixels = loadimagepixelsbgra(va("%s_norm", skinframe->basename), false, false)) != NULL)
1695                 {
1696                         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);
1697                         Mem_Free(pixels);
1698                         pixels = NULL;
1699                 }
1700                 else if (r_shadow_bumpscale_bumpmap.value > 0 && (bumppixels = loadimagepixelsbgra(va("%s_bump", skinframe->basename), false, false)) != NULL)
1701                 {
1702                         pixels = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
1703                         Image_HeightmapToNormalmap_BGRA(bumppixels, pixels, image_width, image_height, false, r_shadow_bumpscale_bumpmap.value);
1704                         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);
1705                         Mem_Free(pixels);
1706                         Mem_Free(bumppixels);
1707                 }
1708                 else if (r_shadow_bumpscale_basetexture.value > 0)
1709                 {
1710                         pixels = (unsigned char *)Mem_Alloc(tempmempool, basepixels_width * basepixels_height * 4);
1711                         Image_HeightmapToNormalmap_BGRA(basepixels, pixels, basepixels_width, basepixels_height, false, r_shadow_bumpscale_basetexture.value);
1712                         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);
1713                         Mem_Free(pixels);
1714                 }
1715         }
1716         // _luma is supported for tenebrae compatibility
1717         // (I think it's a very stupid name, but oh well)
1718         // _glow is the preferred name
1719         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;}
1720         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;}
1721         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;}
1722         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;}
1723
1724         if (basepixels)
1725                 Mem_Free(basepixels);
1726
1727         return skinframe;
1728 }
1729
1730 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)
1731 {
1732         int i;
1733         if (!force)
1734         {
1735                 for (i = 0;i < width*height;i++)
1736                         if (((unsigned char *)&palette[in[i]])[3] > 0)
1737                                 break;
1738                 if (i == width*height)
1739                         return NULL;
1740         }
1741         return R_LoadTexture2D (r_main_texturepool, name, width, height, in, TEXTYPE_PALETTE, textureflags, palette);
1742 }
1743
1744 // this is only used by .spr32 sprites, HL .spr files, HL .bsp files
1745 skinframe_t *R_SkinFrame_LoadInternalBGRA(const char *name, int textureflags, const unsigned char *skindata, int width, int height)
1746 {
1747         int i;
1748         unsigned char *temp1, *temp2;
1749         skinframe_t *skinframe;
1750
1751         if (cls.state == ca_dedicated)
1752                 return NULL;
1753
1754         // if already loaded just return it, otherwise make a new skinframe
1755         skinframe = R_SkinFrame_Find(name, textureflags, width, height, skindata ? CRC_Block(skindata, width*height*4) : 0, true);
1756         if (skinframe && skinframe->base)
1757                 return skinframe;
1758
1759         skinframe->stain = NULL;
1760         skinframe->merged = NULL;
1761         skinframe->base = r_texture_notexture;
1762         skinframe->pants = NULL;
1763         skinframe->shirt = NULL;
1764         skinframe->nmap = r_texture_blanknormalmap;
1765         skinframe->gloss = NULL;
1766         skinframe->glow = NULL;
1767         skinframe->fog = NULL;
1768
1769         // if no data was provided, then clearly the caller wanted to get a blank skinframe
1770         if (!skindata)
1771                 return NULL;
1772
1773         if (r_shadow_bumpscale_basetexture.value > 0)
1774         {
1775                 temp1 = (unsigned char *)Mem_Alloc(tempmempool, width * height * 8);
1776                 temp2 = temp1 + width * height * 4;
1777                 Image_HeightmapToNormalmap_BGRA(skindata, temp2, width, height, false, r_shadow_bumpscale_basetexture.value);
1778                 skinframe->nmap = R_LoadTexture2D(r_main_texturepool, va("%s_nmap", skinframe->basename), width, height, temp2, TEXTYPE_BGRA, skinframe->textureflags | TEXF_ALPHA, NULL);
1779                 Mem_Free(temp1);
1780         }
1781         skinframe->base = skinframe->merged = R_LoadTexture2D(r_main_texturepool, skinframe->basename, width, height, skindata, TEXTYPE_BGRA, skinframe->textureflags, NULL);
1782         if (textureflags & TEXF_ALPHA)
1783         {
1784                 for (i = 3;i < width * height * 4;i += 4)
1785                         if (skindata[i] < 255)
1786                                 break;
1787                 if (i < width * height * 4)
1788                 {
1789                         unsigned char *fogpixels = (unsigned char *)Mem_Alloc(tempmempool, width * height * 4);
1790                         memcpy(fogpixels, skindata, width * height * 4);
1791                         for (i = 0;i < width * height * 4;i += 4)
1792                                 fogpixels[i] = fogpixels[i+1] = fogpixels[i+2] = 255;
1793                         skinframe->fog = R_LoadTexture2D(r_main_texturepool, va("%s_fog", skinframe->basename), width, height, fogpixels, TEXTYPE_BGRA, skinframe->textureflags, NULL);
1794                         Mem_Free(fogpixels);
1795                 }
1796         }
1797
1798         return skinframe;
1799 }
1800
1801 skinframe_t *R_SkinFrame_LoadInternalQuake(const char *name, int textureflags, int loadpantsandshirt, int loadglowtexture, const unsigned char *skindata, int width, int height)
1802 {
1803         int i;
1804         unsigned char *temp1, *temp2;
1805         skinframe_t *skinframe;
1806
1807         if (cls.state == ca_dedicated)
1808                 return NULL;
1809
1810         // if already loaded just return it, otherwise make a new skinframe
1811         skinframe = R_SkinFrame_Find(name, textureflags, width, height, skindata ? CRC_Block(skindata, width*height) : 0, true);
1812         if (skinframe && skinframe->base)
1813                 return skinframe;
1814
1815         skinframe->stain = NULL;
1816         skinframe->merged = NULL;
1817         skinframe->base = r_texture_notexture;
1818         skinframe->pants = NULL;
1819         skinframe->shirt = NULL;
1820         skinframe->nmap = r_texture_blanknormalmap;
1821         skinframe->gloss = NULL;
1822         skinframe->glow = NULL;
1823         skinframe->fog = NULL;
1824
1825         // if no data was provided, then clearly the caller wanted to get a blank skinframe
1826         if (!skindata)
1827                 return NULL;
1828
1829         if (r_shadow_bumpscale_basetexture.value > 0)
1830         {
1831                 temp1 = (unsigned char *)Mem_Alloc(tempmempool, width * height * 8);
1832                 temp2 = temp1 + width * height * 4;
1833                 // use either a custom palette or the quake palette
1834                 Image_Copy8bitBGRA(skindata, temp1, width * height, palette_bgra_complete);
1835                 Image_HeightmapToNormalmap_BGRA(temp1, temp2, width, height, false, r_shadow_bumpscale_basetexture.value);
1836                 skinframe->nmap = R_LoadTexture2D(r_main_texturepool, va("%s_nmap", skinframe->basename), width, height, temp2, TEXTYPE_BGRA, skinframe->textureflags | TEXF_ALPHA, NULL);
1837                 Mem_Free(temp1);
1838         }
1839         // use either a custom palette, or the quake palette
1840         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
1841         if (loadglowtexture)
1842                 skinframe->glow = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_glow", skinframe->basename), palette_bgra_onlyfullbrights, skinframe->textureflags, false); // glow
1843         if (loadpantsandshirt)
1844         {
1845                 skinframe->pants = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_pants", skinframe->basename), palette_bgra_pantsaswhite, skinframe->textureflags, false); // pants
1846                 skinframe->shirt = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_shirt", skinframe->basename), palette_bgra_shirtaswhite, skinframe->textureflags, false); // shirt
1847         }
1848         if (skinframe->pants || skinframe->shirt)
1849                 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
1850         if (textureflags & TEXF_ALPHA)
1851         {
1852                 for (i = 0;i < width * height;i++)
1853                         if (((unsigned char *)palette_bgra_alpha)[skindata[i]*4+3] < 255)
1854                                 break;
1855                 if (i < width * height)
1856                         skinframe->fog = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_fog", skinframe->basename), palette_bgra_alpha, skinframe->textureflags, true); // fog mask
1857         }
1858
1859         return skinframe;
1860 }
1861
1862 skinframe_t *R_SkinFrame_LoadMissing(void)
1863 {
1864         skinframe_t *skinframe;
1865
1866         if (cls.state == ca_dedicated)
1867                 return NULL;
1868
1869         skinframe = R_SkinFrame_Find("missing", TEXF_PRECACHE, 0, 0, 0, true);
1870         skinframe->stain = NULL;
1871         skinframe->merged = NULL;
1872         skinframe->base = r_texture_notexture;
1873         skinframe->pants = NULL;
1874         skinframe->shirt = NULL;
1875         skinframe->nmap = r_texture_blanknormalmap;
1876         skinframe->gloss = NULL;
1877         skinframe->glow = NULL;
1878         skinframe->fog = NULL;
1879
1880         return skinframe;
1881 }
1882
1883 void gl_main_start(void)
1884 {
1885         memset(r_qwskincache, 0, sizeof(r_qwskincache));
1886         memset(r_qwskincache_skinframe, 0, sizeof(r_qwskincache_skinframe));
1887
1888         // set up r_skinframe loading system for textures
1889         memset(&r_skinframe, 0, sizeof(r_skinframe));
1890         r_skinframe.loadsequence = 1;
1891         Mem_ExpandableArray_NewArray(&r_skinframe.array, r_main_mempool, sizeof(skinframe_t), 256);
1892
1893         r_main_texturepool = R_AllocTexturePool();
1894         R_BuildBlankTextures();
1895         R_BuildNoTexture();
1896         if (gl_texturecubemap)
1897         {
1898                 R_BuildWhiteCube();
1899                 R_BuildNormalizationCube();
1900         }
1901         r_texture_fogattenuation = NULL;
1902         //r_texture_fogintensity = NULL;
1903         memset(&r_bloomstate, 0, sizeof(r_bloomstate));
1904         memset(&r_waterstate, 0, sizeof(r_waterstate));
1905         memset(r_glsl_permutations, 0, sizeof(r_glsl_permutations));
1906         memset(&r_svbsp, 0, sizeof (r_svbsp));
1907
1908         r_refdef.fogmasktable_density = 0;
1909 }
1910
1911 void gl_main_shutdown(void)
1912 {
1913         memset(r_qwskincache, 0, sizeof(r_qwskincache));
1914         memset(r_qwskincache_skinframe, 0, sizeof(r_qwskincache_skinframe));
1915
1916         // clear out the r_skinframe state
1917         Mem_ExpandableArray_FreeArray(&r_skinframe.array);
1918         memset(&r_skinframe, 0, sizeof(r_skinframe));
1919
1920         if (r_svbsp.nodes)
1921                 Mem_Free(r_svbsp.nodes);
1922         memset(&r_svbsp, 0, sizeof (r_svbsp));
1923         R_FreeTexturePool(&r_main_texturepool);
1924         r_texture_blanknormalmap = NULL;
1925         r_texture_white = NULL;
1926         r_texture_grey128 = NULL;
1927         r_texture_black = NULL;
1928         r_texture_whitecube = NULL;
1929         r_texture_normalizationcube = NULL;
1930         r_texture_fogattenuation = NULL;
1931         //r_texture_fogintensity = NULL;
1932         memset(&r_bloomstate, 0, sizeof(r_bloomstate));
1933         memset(&r_waterstate, 0, sizeof(r_waterstate));
1934         R_GLSL_Restart_f();
1935 }
1936
1937 extern void CL_ParseEntityLump(char *entitystring);
1938 void gl_main_newmap(void)
1939 {
1940         // FIXME: move this code to client
1941         int l;
1942         char *entities, entname[MAX_QPATH];
1943         if (cl.worldmodel)
1944         {
1945                 strlcpy(entname, cl.worldmodel->name, sizeof(entname));
1946                 l = (int)strlen(entname) - 4;
1947                 if (l >= 0 && !strcmp(entname + l, ".bsp"))
1948                 {
1949                         memcpy(entname + l, ".ent", 5);
1950                         if ((entities = (char *)FS_LoadFile(entname, tempmempool, true, NULL)))
1951                         {
1952                                 CL_ParseEntityLump(entities);
1953                                 Mem_Free(entities);
1954                                 return;
1955                         }
1956                 }
1957                 if (cl.worldmodel->brush.entities)
1958                         CL_ParseEntityLump(cl.worldmodel->brush.entities);
1959         }
1960 }
1961
1962 void GL_Main_Init(void)
1963 {
1964         r_main_mempool = Mem_AllocPool("Renderer", 0, NULL);
1965
1966         Cmd_AddCommand("r_glsl_restart", R_GLSL_Restart_f, "unloads GLSL shaders, they will then be reloaded as needed");
1967         Cmd_AddCommand("r_glsl_dumpshader", R_GLSL_DumpShader_f, "dumps the engine internal default.glsl shader into glsl/default.glsl");
1968         // FIXME: the client should set up r_refdef.fog stuff including the fogmasktable
1969         if (gamemode == GAME_NEHAHRA)
1970         {
1971                 Cvar_RegisterVariable (&gl_fogenable);
1972                 Cvar_RegisterVariable (&gl_fogdensity);
1973                 Cvar_RegisterVariable (&gl_fogred);
1974                 Cvar_RegisterVariable (&gl_foggreen);
1975                 Cvar_RegisterVariable (&gl_fogblue);
1976                 Cvar_RegisterVariable (&gl_fogstart);
1977                 Cvar_RegisterVariable (&gl_fogend);
1978                 Cvar_RegisterVariable (&gl_skyclip);
1979         }
1980         Cvar_RegisterVariable(&r_depthfirst);
1981         Cvar_RegisterVariable(&r_nearclip);
1982         Cvar_RegisterVariable(&r_showbboxes);
1983         Cvar_RegisterVariable(&r_showsurfaces);
1984         Cvar_RegisterVariable(&r_showtris);
1985         Cvar_RegisterVariable(&r_shownormals);
1986         Cvar_RegisterVariable(&r_showlighting);
1987         Cvar_RegisterVariable(&r_showshadowvolumes);
1988         Cvar_RegisterVariable(&r_showcollisionbrushes);
1989         Cvar_RegisterVariable(&r_showcollisionbrushes_polygonfactor);
1990         Cvar_RegisterVariable(&r_showcollisionbrushes_polygonoffset);
1991         Cvar_RegisterVariable(&r_showdisabledepthtest);
1992         Cvar_RegisterVariable(&r_drawportals);
1993         Cvar_RegisterVariable(&r_drawentities);
1994         Cvar_RegisterVariable(&r_cullentities_trace);
1995         Cvar_RegisterVariable(&r_cullentities_trace_samples);
1996         Cvar_RegisterVariable(&r_cullentities_trace_enlarge);
1997         Cvar_RegisterVariable(&r_cullentities_trace_delay);
1998         Cvar_RegisterVariable(&r_drawviewmodel);
1999         Cvar_RegisterVariable(&r_speeds);
2000         Cvar_RegisterVariable(&r_fullbrights);
2001         Cvar_RegisterVariable(&r_wateralpha);
2002         Cvar_RegisterVariable(&r_dynamic);
2003         Cvar_RegisterVariable(&r_fullbright);
2004         Cvar_RegisterVariable(&r_shadows);
2005         Cvar_RegisterVariable(&r_shadows_throwdistance);
2006         Cvar_RegisterVariable(&r_q1bsp_skymasking);
2007         Cvar_RegisterVariable(&r_polygonoffset_submodel_factor);
2008         Cvar_RegisterVariable(&r_polygonoffset_submodel_offset);
2009         Cvar_RegisterVariable(&r_fog_exp2);
2010         Cvar_RegisterVariable(&r_textureunits);
2011         Cvar_RegisterVariable(&r_glsl);
2012         Cvar_RegisterVariable(&r_glsl_offsetmapping);
2013         Cvar_RegisterVariable(&r_glsl_offsetmapping_reliefmapping);
2014         Cvar_RegisterVariable(&r_glsl_offsetmapping_scale);
2015         Cvar_RegisterVariable(&r_glsl_deluxemapping);
2016         Cvar_RegisterVariable(&r_water);
2017         Cvar_RegisterVariable(&r_water_resolutionmultiplier);
2018         Cvar_RegisterVariable(&r_water_clippingplanebias);
2019         Cvar_RegisterVariable(&r_water_refractdistort);
2020         Cvar_RegisterVariable(&r_water_reflectdistort);
2021         Cvar_RegisterVariable(&r_lerpsprites);
2022         Cvar_RegisterVariable(&r_lerpmodels);
2023         Cvar_RegisterVariable(&r_lerplightstyles);
2024         Cvar_RegisterVariable(&r_waterscroll);
2025         Cvar_RegisterVariable(&r_bloom);
2026         Cvar_RegisterVariable(&r_bloom_colorscale);
2027         Cvar_RegisterVariable(&r_bloom_brighten);
2028         Cvar_RegisterVariable(&r_bloom_blur);
2029         Cvar_RegisterVariable(&r_bloom_resolution);
2030         Cvar_RegisterVariable(&r_bloom_colorexponent);
2031         Cvar_RegisterVariable(&r_bloom_colorsubtract);
2032         Cvar_RegisterVariable(&r_hdr);
2033         Cvar_RegisterVariable(&r_hdr_scenebrightness);
2034         Cvar_RegisterVariable(&r_glsl_contrastboost);
2035         Cvar_RegisterVariable(&r_hdr_glowintensity);
2036         Cvar_RegisterVariable(&r_hdr_range);
2037         Cvar_RegisterVariable(&r_smoothnormals_areaweighting);
2038         Cvar_RegisterVariable(&developer_texturelogging);
2039         Cvar_RegisterVariable(&gl_lightmaps);
2040         Cvar_RegisterVariable(&r_test);
2041         Cvar_RegisterVariable(&r_batchmode);
2042         if (gamemode == GAME_NEHAHRA || gamemode == GAME_TENEBRAE)
2043                 Cvar_SetValue("r_fullbrights", 0);
2044         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
2045
2046         Cvar_RegisterVariable(&r_track_sprites);
2047         Cvar_RegisterVariable(&r_track_sprites_flags);
2048         Cvar_RegisterVariable(&r_track_sprites_scalew);
2049         Cvar_RegisterVariable(&r_track_sprites_scaleh);
2050 }
2051
2052 extern void R_Textures_Init(void);
2053 extern void GL_Draw_Init(void);
2054 extern void GL_Main_Init(void);
2055 extern void R_Shadow_Init(void);
2056 extern void R_Sky_Init(void);
2057 extern void GL_Surf_Init(void);
2058 extern void R_Particles_Init(void);
2059 extern void R_Explosion_Init(void);
2060 extern void gl_backend_init(void);
2061 extern void Sbar_Init(void);
2062 extern void R_LightningBeams_Init(void);
2063 extern void Mod_RenderInit(void);
2064
2065 void Render_Init(void)
2066 {
2067         gl_backend_init();
2068         R_Textures_Init();
2069         GL_Main_Init();
2070         GL_Draw_Init();
2071         R_Shadow_Init();
2072         R_Sky_Init();
2073         GL_Surf_Init();
2074         Sbar_Init();
2075         R_Particles_Init();
2076         R_Explosion_Init();
2077         R_LightningBeams_Init();
2078         Mod_RenderInit();
2079 }
2080
2081 /*
2082 ===============
2083 GL_Init
2084 ===============
2085 */
2086 extern char *ENGINE_EXTENSIONS;
2087 void GL_Init (void)
2088 {
2089         VID_CheckExtensions();
2090
2091         // LordHavoc: report supported extensions
2092         Con_DPrintf("\nQuakeC extensions for server and client: %s\nQuakeC extensions for menu: %s\n", vm_sv_extensions, vm_m_extensions );
2093
2094         // clear to black (loading plaque will be seen over this)
2095         CHECKGLERROR
2096         qglClearColor(0,0,0,1);CHECKGLERROR
2097         qglClear(GL_COLOR_BUFFER_BIT);CHECKGLERROR
2098 }
2099
2100 int R_CullBox(const vec3_t mins, const vec3_t maxs)
2101 {
2102         int i;
2103         mplane_t *p;
2104         for (i = 0;i < r_view.numfrustumplanes;i++)
2105         {
2106                 // skip nearclip plane, it often culls portals when you are very close, and is almost never useful
2107                 if (i == 4)
2108                         continue;
2109                 p = r_view.frustum + i;
2110                 switch(p->signbits)
2111                 {
2112                 default:
2113                 case 0:
2114                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2115                                 return true;
2116                         break;
2117                 case 1:
2118                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2119                                 return true;
2120                         break;
2121                 case 2:
2122                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2123                                 return true;
2124                         break;
2125                 case 3:
2126                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2127                                 return true;
2128                         break;
2129                 case 4:
2130                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2131                                 return true;
2132                         break;
2133                 case 5:
2134                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2135                                 return true;
2136                         break;
2137                 case 6:
2138                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2139                                 return true;
2140                         break;
2141                 case 7:
2142                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2143                                 return true;
2144                         break;
2145                 }
2146         }
2147         return false;
2148 }
2149
2150 int R_CullBoxCustomPlanes(const vec3_t mins, const vec3_t maxs, int numplanes, const mplane_t *planes)
2151 {
2152         int i;
2153         const mplane_t *p;
2154         for (i = 0;i < numplanes;i++)
2155         {
2156                 p = planes + i;
2157                 switch(p->signbits)
2158                 {
2159                 default:
2160                 case 0:
2161                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2162                                 return true;
2163                         break;
2164                 case 1:
2165                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2166                                 return true;
2167                         break;
2168                 case 2:
2169                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2170                                 return true;
2171                         break;
2172                 case 3:
2173                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2174                                 return true;
2175                         break;
2176                 case 4:
2177                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2178                                 return true;
2179                         break;
2180                 case 5:
2181                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2182                                 return true;
2183                         break;
2184                 case 6:
2185                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2186                                 return true;
2187                         break;
2188                 case 7:
2189                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2190                                 return true;
2191                         break;
2192                 }
2193         }
2194         return false;
2195 }
2196
2197 //==================================================================================
2198
2199 static void R_View_UpdateEntityVisible (void)
2200 {
2201         int i, renderimask;
2202         entity_render_t *ent;
2203
2204         if (!r_drawentities.integer)
2205                 return;
2206
2207         renderimask = r_refdef.envmap ? (RENDER_EXTERIORMODEL | RENDER_VIEWMODEL) : ((chase_active.integer || r_waterstate.renderingscene) ? RENDER_VIEWMODEL : RENDER_EXTERIORMODEL);
2208         if (r_refdef.worldmodel && r_refdef.worldmodel->brush.BoxTouchingVisibleLeafs)
2209         {
2210                 // worldmodel can check visibility
2211                 for (i = 0;i < r_refdef.numentities;i++)
2212                 {
2213                         ent = r_refdef.entities[i];
2214                         r_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.worldmodel->brush.BoxTouchingVisibleLeafs(r_refdef.worldmodel, r_viewcache.world_leafvisible, ent->mins, ent->maxs));
2215
2216                 }
2217                 if(r_cullentities_trace.integer)
2218                 {
2219                         for (i = 0;i < r_refdef.numentities;i++)
2220                         {
2221                                 ent = r_refdef.entities[i];
2222                                 if(r_viewcache.entityvisible[i] && !(ent->effects & EF_NODEPTHTEST) && !(ent->flags & RENDER_VIEWMODEL) && !(ent->model && (ent->model->name[0] == '*')))
2223                                 {
2224                                         if(Mod_CanSeeBox_Trace(r_cullentities_trace_samples.integer, r_cullentities_trace_enlarge.value, r_refdef.worldmodel, r_view.origin, ent->mins, ent->maxs))
2225                                                 ent->last_trace_visibility = realtime;
2226                                         if(ent->last_trace_visibility < realtime - r_cullentities_trace_delay.value)
2227                                                 r_viewcache.entityvisible[i] = 0;
2228                                 }
2229                         }
2230                 }
2231         }
2232         else
2233         {
2234                 // no worldmodel or it can't check visibility
2235                 for (i = 0;i < r_refdef.numentities;i++)
2236                 {
2237                         ent = r_refdef.entities[i];
2238                         r_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));
2239                 }
2240         }
2241 }
2242
2243 // only used if skyrendermasked, and normally returns false
2244 int R_DrawBrushModelsSky (void)
2245 {
2246         int i, sky;
2247         entity_render_t *ent;
2248
2249         if (!r_drawentities.integer)
2250                 return false;
2251
2252         sky = false;
2253         for (i = 0;i < r_refdef.numentities;i++)
2254         {
2255                 if (!r_viewcache.entityvisible[i])
2256                         continue;
2257                 ent = r_refdef.entities[i];
2258                 if (!ent->model || !ent->model->DrawSky)
2259                         continue;
2260                 ent->model->DrawSky(ent);
2261                 sky = true;
2262         }
2263         return sky;
2264 }
2265
2266 static void R_DrawNoModel(entity_render_t *ent);
2267 static void R_DrawModels(void)
2268 {
2269         int i;
2270         entity_render_t *ent;
2271
2272         if (!r_drawentities.integer)
2273                 return;
2274
2275         for (i = 0;i < r_refdef.numentities;i++)
2276         {
2277                 if (!r_viewcache.entityvisible[i])
2278                         continue;
2279                 ent = r_refdef.entities[i];
2280                 r_refdef.stats.entities++;
2281                 if (ent->model && ent->model->Draw != NULL)
2282                         ent->model->Draw(ent);
2283                 else
2284                         R_DrawNoModel(ent);
2285         }
2286 }
2287
2288 static void R_DrawModelsDepth(void)
2289 {
2290         int i;
2291         entity_render_t *ent;
2292
2293         if (!r_drawentities.integer)
2294                 return;
2295
2296         for (i = 0;i < r_refdef.numentities;i++)
2297         {
2298                 if (!r_viewcache.entityvisible[i])
2299                         continue;
2300                 ent = r_refdef.entities[i];
2301                 if (ent->model && ent->model->DrawDepth != NULL)
2302                         ent->model->DrawDepth(ent);
2303         }
2304 }
2305
2306 static void R_DrawModelsDebug(void)
2307 {
2308         int i;
2309         entity_render_t *ent;
2310
2311         if (!r_drawentities.integer)
2312                 return;
2313
2314         for (i = 0;i < r_refdef.numentities;i++)
2315         {
2316                 if (!r_viewcache.entityvisible[i])
2317                         continue;
2318                 ent = r_refdef.entities[i];
2319                 if (ent->model && ent->model->DrawDebug != NULL)
2320                         ent->model->DrawDebug(ent);
2321         }
2322 }
2323
2324 static void R_DrawModelsAddWaterPlanes(void)
2325 {
2326         int i;
2327         entity_render_t *ent;
2328
2329         if (!r_drawentities.integer)
2330                 return;
2331
2332         for (i = 0;i < r_refdef.numentities;i++)
2333         {
2334                 if (!r_viewcache.entityvisible[i])
2335                         continue;
2336                 ent = r_refdef.entities[i];
2337                 if (ent->model && ent->model->DrawAddWaterPlanes != NULL)
2338                         ent->model->DrawAddWaterPlanes(ent);
2339         }
2340 }
2341
2342 static void R_View_SetFrustum(void)
2343 {
2344         int i;
2345         double slopex, slopey;
2346
2347         // break apart the view matrix into vectors for various purposes
2348         Matrix4x4_ToVectors(&r_view.matrix, r_view.forward, r_view.left, r_view.up, r_view.origin);
2349         VectorNegate(r_view.left, r_view.right);
2350
2351 #if 0
2352         r_view.frustum[0].normal[0] = 0 - 1.0 / r_view.frustum_x;
2353         r_view.frustum[0].normal[1] = 0 - 0;
2354         r_view.frustum[0].normal[2] = -1 - 0;
2355         r_view.frustum[1].normal[0] = 0 + 1.0 / r_view.frustum_x;
2356         r_view.frustum[1].normal[1] = 0 + 0;
2357         r_view.frustum[1].normal[2] = -1 + 0;
2358         r_view.frustum[2].normal[0] = 0 - 0;
2359         r_view.frustum[2].normal[1] = 0 - 1.0 / r_view.frustum_y;
2360         r_view.frustum[2].normal[2] = -1 - 0;
2361         r_view.frustum[3].normal[0] = 0 + 0;
2362         r_view.frustum[3].normal[1] = 0 + 1.0 / r_view.frustum_y;
2363         r_view.frustum[3].normal[2] = -1 + 0;
2364 #endif
2365
2366 #if 0
2367         zNear = r_refdef.nearclip;
2368         nudge = 1.0 - 1.0 / (1<<23);
2369         r_view.frustum[4].normal[0] = 0 - 0;
2370         r_view.frustum[4].normal[1] = 0 - 0;
2371         r_view.frustum[4].normal[2] = -1 - -nudge;
2372         r_view.frustum[4].dist = 0 - -2 * zNear * nudge;
2373         r_view.frustum[5].normal[0] = 0 + 0;
2374         r_view.frustum[5].normal[1] = 0 + 0;
2375         r_view.frustum[5].normal[2] = -1 + -nudge;
2376         r_view.frustum[5].dist = 0 + -2 * zNear * nudge;
2377 #endif
2378
2379
2380
2381 #if 0
2382         r_view.frustum[0].normal[0] = m[3] - m[0];
2383         r_view.frustum[0].normal[1] = m[7] - m[4];
2384         r_view.frustum[0].normal[2] = m[11] - m[8];
2385         r_view.frustum[0].dist = m[15] - m[12];
2386
2387         r_view.frustum[1].normal[0] = m[3] + m[0];
2388         r_view.frustum[1].normal[1] = m[7] + m[4];
2389         r_view.frustum[1].normal[2] = m[11] + m[8];
2390         r_view.frustum[1].dist = m[15] + m[12];
2391
2392         r_view.frustum[2].normal[0] = m[3] - m[1];
2393         r_view.frustum[2].normal[1] = m[7] - m[5];
2394         r_view.frustum[2].normal[2] = m[11] - m[9];
2395         r_view.frustum[2].dist = m[15] - m[13];
2396
2397         r_view.frustum[3].normal[0] = m[3] + m[1];
2398         r_view.frustum[3].normal[1] = m[7] + m[5];
2399         r_view.frustum[3].normal[2] = m[11] + m[9];
2400         r_view.frustum[3].dist = m[15] + m[13];
2401
2402         r_view.frustum[4].normal[0] = m[3] - m[2];
2403         r_view.frustum[4].normal[1] = m[7] - m[6];
2404         r_view.frustum[4].normal[2] = m[11] - m[10];
2405         r_view.frustum[4].dist = m[15] - m[14];
2406
2407         r_view.frustum[5].normal[0] = m[3] + m[2];
2408         r_view.frustum[5].normal[1] = m[7] + m[6];
2409         r_view.frustum[5].normal[2] = m[11] + m[10];
2410         r_view.frustum[5].dist = m[15] + m[14];
2411 #endif
2412
2413         if (r_view.useperspective)
2414         {
2415                 slopex = 1.0 / r_view.frustum_x;
2416                 slopey = 1.0 / r_view.frustum_y;
2417                 VectorMA(r_view.forward, -slopex, r_view.left, r_view.frustum[0].normal);
2418                 VectorMA(r_view.forward,  slopex, r_view.left, r_view.frustum[1].normal);
2419                 VectorMA(r_view.forward, -slopey, r_view.up  , r_view.frustum[2].normal);
2420                 VectorMA(r_view.forward,  slopey, r_view.up  , r_view.frustum[3].normal);
2421                 VectorCopy(r_view.forward, r_view.frustum[4].normal);
2422
2423                 // Leaving those out was a mistake, those were in the old code, and they
2424                 // fix a reproducable bug in this one: frustum culling got fucked up when viewmatrix was an identity matrix
2425                 // I couldn't reproduce it after adding those normalizations. --blub
2426                 VectorNormalize(r_view.frustum[0].normal);
2427                 VectorNormalize(r_view.frustum[1].normal);
2428                 VectorNormalize(r_view.frustum[2].normal);
2429                 VectorNormalize(r_view.frustum[3].normal);
2430
2431                 // calculate frustum corners, which are used to calculate deformed frustum planes for shadow caster culling
2432                 VectorMAMAMAM(1, r_view.origin, 1024, r_view.forward, -1024 * slopex, r_view.left, -1024 * slopey, r_view.up, r_view.frustumcorner[0]);
2433                 VectorMAMAMAM(1, r_view.origin, 1024, r_view.forward,  1024 * slopex, r_view.left, -1024 * slopey, r_view.up, r_view.frustumcorner[1]);
2434                 VectorMAMAMAM(1, r_view.origin, 1024, r_view.forward, -1024 * slopex, r_view.left,  1024 * slopey, r_view.up, r_view.frustumcorner[2]);
2435                 VectorMAMAMAM(1, r_view.origin, 1024, r_view.forward,  1024 * slopex, r_view.left,  1024 * slopey, r_view.up, r_view.frustumcorner[3]);
2436
2437                 r_view.frustum[0].dist = DotProduct (r_view.origin, r_view.frustum[0].normal);
2438                 r_view.frustum[1].dist = DotProduct (r_view.origin, r_view.frustum[1].normal);
2439                 r_view.frustum[2].dist = DotProduct (r_view.origin, r_view.frustum[2].normal);
2440                 r_view.frustum[3].dist = DotProduct (r_view.origin, r_view.frustum[3].normal);
2441                 r_view.frustum[4].dist = DotProduct (r_view.origin, r_view.frustum[4].normal) + r_refdef.nearclip;
2442         }
2443         else
2444         {
2445                 VectorScale(r_view.left, -r_view.ortho_x, r_view.frustum[0].normal);
2446                 VectorScale(r_view.left,  r_view.ortho_x, r_view.frustum[1].normal);
2447                 VectorScale(r_view.up, -r_view.ortho_y, r_view.frustum[2].normal);
2448                 VectorScale(r_view.up,  r_view.ortho_y, r_view.frustum[3].normal);
2449                 VectorCopy(r_view.forward, r_view.frustum[4].normal);
2450                 r_view.frustum[0].dist = DotProduct (r_view.origin, r_view.frustum[0].normal) + r_view.ortho_x;
2451                 r_view.frustum[1].dist = DotProduct (r_view.origin, r_view.frustum[1].normal) + r_view.ortho_x;
2452                 r_view.frustum[2].dist = DotProduct (r_view.origin, r_view.frustum[2].normal) + r_view.ortho_y;
2453                 r_view.frustum[3].dist = DotProduct (r_view.origin, r_view.frustum[3].normal) + r_view.ortho_y;
2454                 r_view.frustum[4].dist = DotProduct (r_view.origin, r_view.frustum[4].normal) + r_refdef.nearclip;
2455         }
2456         r_view.numfrustumplanes = 5;
2457
2458         if (r_view.useclipplane)
2459         {
2460                 r_view.numfrustumplanes = 6;
2461                 r_view.frustum[5] = r_view.clipplane;
2462         }
2463
2464         for (i = 0;i < r_view.numfrustumplanes;i++)
2465                 PlaneClassify(r_view.frustum + i);
2466
2467         // LordHavoc: note to all quake engine coders, Quake had a special case
2468         // for 90 degrees which assumed a square view (wrong), so I removed it,
2469         // Quake2 has it disabled as well.
2470
2471         // rotate R_VIEWFORWARD right by FOV_X/2 degrees
2472         //RotatePointAroundVector( r_view.frustum[0].normal, r_view.up, r_view.forward, -(90 - r_refdef.fov_x / 2));
2473         //r_view.frustum[0].dist = DotProduct (r_view.origin, frustum[0].normal);
2474         //PlaneClassify(&frustum[0]);
2475
2476         // rotate R_VIEWFORWARD left by FOV_X/2 degrees
2477         //RotatePointAroundVector( r_view.frustum[1].normal, r_view.up, r_view.forward, (90 - r_refdef.fov_x / 2));
2478         //r_view.frustum[1].dist = DotProduct (r_view.origin, frustum[1].normal);
2479         //PlaneClassify(&frustum[1]);
2480
2481         // rotate R_VIEWFORWARD up by FOV_X/2 degrees
2482         //RotatePointAroundVector( r_view.frustum[2].normal, r_view.left, r_view.forward, -(90 - r_refdef.fov_y / 2));
2483         //r_view.frustum[2].dist = DotProduct (r_view.origin, frustum[2].normal);
2484         //PlaneClassify(&frustum[2]);
2485
2486         // rotate R_VIEWFORWARD down by FOV_X/2 degrees
2487         //RotatePointAroundVector( r_view.frustum[3].normal, r_view.left, r_view.forward, (90 - r_refdef.fov_y / 2));
2488         //r_view.frustum[3].dist = DotProduct (r_view.origin, frustum[3].normal);
2489         //PlaneClassify(&frustum[3]);
2490
2491         // nearclip plane
2492         //VectorCopy(r_view.forward, r_view.frustum[4].normal);
2493         //r_view.frustum[4].dist = DotProduct (r_view.origin, frustum[4].normal) + r_nearclip.value;
2494         //PlaneClassify(&frustum[4]);
2495 }
2496
2497 void R_View_Update(void)
2498 {
2499         R_View_SetFrustum();
2500         R_View_WorldVisibility(r_view.useclipplane);
2501         R_View_UpdateEntityVisible();
2502 }
2503
2504 void R_SetupView(void)
2505 {
2506         if (!r_view.useperspective)
2507                 GL_SetupView_Mode_Ortho(-r_view.ortho_x, -r_view.ortho_y, r_view.ortho_x, r_view.ortho_y, -r_refdef.farclip, r_refdef.farclip);
2508         else if (r_refdef.rtworldshadows || r_refdef.rtdlightshadows)
2509                 GL_SetupView_Mode_PerspectiveInfiniteFarClip(r_view.frustum_x, r_view.frustum_y, r_refdef.nearclip);
2510         else
2511                 GL_SetupView_Mode_Perspective(r_view.frustum_x, r_view.frustum_y, r_refdef.nearclip, r_refdef.farclip);
2512
2513         GL_SetupView_Orientation_FromEntity(&r_view.matrix);
2514
2515         if (r_view.useclipplane)
2516         {
2517                 // LordHavoc: couldn't figure out how to make this approach the
2518                 vec_t dist = r_view.clipplane.dist - r_water_clippingplanebias.value;
2519                 vec_t viewdist = DotProduct(r_view.origin, r_view.clipplane.normal);
2520                 if (viewdist < r_view.clipplane.dist + r_water_clippingplanebias.value)
2521                         dist = r_view.clipplane.dist;
2522                 GL_SetupView_ApplyCustomNearClipPlane(r_view.clipplane.normal[0], r_view.clipplane.normal[1], r_view.clipplane.normal[2], dist);
2523         }
2524 }
2525
2526 void R_ResetViewRendering2D(void)
2527 {
2528         if (gl_support_fragment_shader)
2529         {
2530                 qglUseProgramObjectARB(0);CHECKGLERROR
2531         }
2532
2533         DrawQ_Finish();
2534
2535         // GL is weird because it's bottom to top, r_view.y is top to bottom
2536         qglViewport(r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
2537         GL_SetupView_Mode_Ortho(0, 0, 1, 1, -10, 100);
2538         GL_Scissor(r_view.x, r_view.y, r_view.width, r_view.height);
2539         GL_Color(1, 1, 1, 1);
2540         GL_ColorMask(r_view.colormask[0], r_view.colormask[1], r_view.colormask[2], 1);
2541         GL_BlendFunc(GL_ONE, GL_ZERO);
2542         GL_AlphaTest(false);
2543         GL_ScissorTest(false);
2544         GL_DepthMask(false);
2545         GL_DepthRange(0, 1);
2546         GL_DepthTest(false);
2547         R_Mesh_Matrix(&identitymatrix);
2548         R_Mesh_ResetTextureState();
2549         GL_PolygonOffset(0, 0);
2550         qglEnable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
2551         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
2552         qglDisable(GL_STENCIL_TEST);CHECKGLERROR
2553         qglStencilMask(~0);CHECKGLERROR
2554         qglStencilFunc(GL_ALWAYS, 128, ~0);CHECKGLERROR
2555         qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
2556         GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
2557 }
2558
2559 void R_ResetViewRendering3D(void)
2560 {
2561         if (gl_support_fragment_shader)
2562         {
2563                 qglUseProgramObjectARB(0);CHECKGLERROR
2564         }
2565
2566         DrawQ_Finish();
2567
2568         // GL is weird because it's bottom to top, r_view.y is top to bottom
2569         qglViewport(r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
2570         R_SetupView();
2571         GL_Scissor(r_view.x, r_view.y, r_view.width, r_view.height);
2572         GL_Color(1, 1, 1, 1);
2573         GL_ColorMask(r_view.colormask[0], r_view.colormask[1], r_view.colormask[2], 1);
2574         GL_BlendFunc(GL_ONE, GL_ZERO);
2575         GL_AlphaTest(false);
2576         GL_ScissorTest(true);
2577         GL_DepthMask(true);
2578         GL_DepthRange(0, 1);
2579         GL_DepthTest(true);
2580         R_Mesh_Matrix(&identitymatrix);
2581         R_Mesh_ResetTextureState();
2582         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
2583         qglEnable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
2584         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
2585         qglDisable(GL_STENCIL_TEST);CHECKGLERROR
2586         qglStencilMask(~0);CHECKGLERROR
2587         qglStencilFunc(GL_ALWAYS, 128, ~0);CHECKGLERROR
2588         qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
2589         GL_CullFace(r_view.cullface_back);
2590 }
2591
2592 /*
2593         R_Bloom_SetupShader(
2594 "// bloom shader\n"
2595 "// written by Forest 'LordHavoc' Hale\n"
2596 "\n"
2597 "// common definitions between vertex shader and fragment shader:\n"
2598 "\n"
2599 "#ifdef __GLSL_CG_DATA_TYPES\n"
2600 "#define myhalf half\n"
2601 "#define myhvec2 hvec2\n"
2602 "#define myhvec3 hvec3\n"
2603 "#define myhvec4 hvec4\n"
2604 "#else\n"
2605 "#define myhalf float\n"
2606 "#define myhvec2 vec2\n"
2607 "#define myhvec3 vec3\n"
2608 "#define myhvec4 vec4\n"
2609 "#endif\n"
2610 "\n"
2611 "varying vec2 ScreenTexCoord;\n"
2612 "varying vec2 BloomTexCoord;\n"
2613 "\n"
2614 "\n"
2615 "\n"
2616 "\n"
2617 "// vertex shader specific:\n"
2618 "#ifdef VERTEX_SHADER\n"
2619 "\n"
2620 "void main(void)\n"
2621 "{\n"
2622 "       ScreenTexCoord = vec2(gl_MultiTexCoord0);\n"
2623 "       BloomTexCoord = vec2(gl_MultiTexCoord1);\n"
2624 "       // transform vertex to camera space, using ftransform to match non-VS\n"
2625 "       // rendering\n"
2626 "       gl_Position = ftransform();\n"
2627 "}\n"
2628 "\n"
2629 "#endif // VERTEX_SHADER\n"
2630 "\n"
2631 "\n"
2632 "\n"
2633 "\n"
2634 "// fragment shader specific:\n"
2635 "#ifdef FRAGMENT_SHADER\n"
2636 "\n"
2637 "void main(void)\n"
2638 "{\n"
2639 "       int x, y;
2640 "       myhvec3 color = myhvec3(texture2D(Texture_Screen, ScreenTexCoord));\n"
2641 "       for (x = -BLUR_X;x <= BLUR_X;x++)
2642 "       color.rgb += myhvec3(texture2D(Texture_Bloom, BloomTexCoord));\n"
2643 "       color.rgb += myhvec3(texture2D(Texture_Bloom, BloomTexCoord));\n"
2644 "       color.rgb += myhvec3(texture2D(Texture_Bloom, BloomTexCoord));\n"
2645 "       color.rgb += myhvec3(texture2D(Texture_Bloom, BloomTexCoord));\n"
2646
2647 "       gl_FragColor = vec4(color);\n"
2648 "}\n"
2649 "\n"
2650 "#endif // FRAGMENT_SHADER\n"
2651 */
2652
2653 void R_RenderScene(qboolean addwaterplanes);
2654
2655 static void R_Water_StartFrame(void)
2656 {
2657         int i;
2658         int waterwidth, waterheight, texturewidth, textureheight;
2659         r_waterstate_waterplane_t *p;
2660
2661         // set waterwidth and waterheight to the water resolution that will be
2662         // used (often less than the screen resolution for faster rendering)
2663         waterwidth = (int)bound(1, r_view.width * r_water_resolutionmultiplier.value, r_view.width);
2664         waterheight = (int)bound(1, r_view.height * r_water_resolutionmultiplier.value, r_view.height);
2665
2666         // calculate desired texture sizes
2667         // can't use water if the card does not support the texture size
2668         if (!r_water.integer || !r_glsl.integer || !gl_support_fragment_shader || waterwidth > gl_max_texture_size || waterheight > gl_max_texture_size)
2669                 texturewidth = textureheight = waterwidth = waterheight = 0;
2670         else if (gl_support_arb_texture_non_power_of_two)
2671         {
2672                 texturewidth = waterwidth;
2673                 textureheight = waterheight;
2674         }
2675         else
2676         {
2677                 for (texturewidth   = 1;texturewidth   < waterwidth ;texturewidth   *= 2);
2678                 for (textureheight  = 1;textureheight  < waterheight;textureheight  *= 2);
2679         }
2680
2681         // allocate textures as needed
2682         if (r_waterstate.waterwidth != waterwidth || r_waterstate.waterheight != waterheight || r_waterstate.texturewidth != texturewidth || r_waterstate.textureheight != textureheight)
2683         {
2684                 r_waterstate.maxwaterplanes = MAX_WATERPLANES;
2685                 for (i = 0, p = r_waterstate.waterplanes;i < r_waterstate.maxwaterplanes;i++, p++)
2686                 {
2687                         if (p->texture_refraction)
2688                                 R_FreeTexture(p->texture_refraction);
2689                         p->texture_refraction = NULL;
2690                         if (p->texture_reflection)
2691                                 R_FreeTexture(p->texture_reflection);
2692                         p->texture_reflection = NULL;
2693                 }
2694                 memset(&r_waterstate, 0, sizeof(r_waterstate));
2695                 r_waterstate.waterwidth = waterwidth;
2696                 r_waterstate.waterheight = waterheight;
2697                 r_waterstate.texturewidth = texturewidth;
2698                 r_waterstate.textureheight = textureheight;
2699         }
2700
2701         if (r_waterstate.waterwidth)
2702         {
2703                 r_waterstate.enabled = true;
2704
2705                 // set up variables that will be used in shader setup
2706                 r_waterstate.screenscale[0] = 0.5f * (float)waterwidth / (float)texturewidth;
2707                 r_waterstate.screenscale[1] = 0.5f * (float)waterheight / (float)textureheight;
2708                 r_waterstate.screencenter[0] = 0.5f * (float)waterwidth / (float)texturewidth;
2709                 r_waterstate.screencenter[1] = 0.5f * (float)waterheight / (float)textureheight;
2710         }
2711
2712         r_waterstate.maxwaterplanes = MAX_WATERPLANES;
2713         r_waterstate.numwaterplanes = 0;
2714 }
2715
2716 static void R_Water_AddWaterPlane(msurface_t *surface)
2717 {
2718         int triangleindex, planeindex;
2719         const int *e;
2720         vec3_t vert[3];
2721         vec3_t normal;
2722         vec3_t center;
2723         r_waterstate_waterplane_t *p;
2724         // just use the first triangle with a valid normal for any decisions
2725         VectorClear(normal);
2726         for (triangleindex = 0, e = rsurface.modelelement3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2727         {
2728                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[0]*3, vert[0]);
2729                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[1]*3, vert[1]);
2730                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[2]*3, vert[2]);
2731                 TriangleNormal(vert[0], vert[1], vert[2], normal);
2732                 if (VectorLength2(normal) >= 0.001)
2733                         break;
2734         }
2735
2736         // find a matching plane if there is one
2737         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
2738                 if (fabs(PlaneDiff(vert[0], &p->plane)) < 1 && fabs(PlaneDiff(vert[1], &p->plane)) < 1 && fabs(PlaneDiff(vert[2], &p->plane)) < 1)
2739                         break;
2740         if (planeindex >= r_waterstate.maxwaterplanes)
2741                 return; // nothing we can do, out of planes
2742
2743         // if this triangle does not fit any known plane rendered this frame, add one
2744         if (planeindex >= r_waterstate.numwaterplanes)
2745         {
2746                 // store the new plane
2747                 r_waterstate.numwaterplanes++;
2748                 VectorCopy(normal, p->plane.normal);
2749                 VectorNormalize(p->plane.normal);
2750                 p->plane.dist = DotProduct(vert[0], p->plane.normal);
2751                 PlaneClassify(&p->plane);
2752                 // flip the plane if it does not face the viewer
2753                 if (PlaneDiff(r_view.origin, &p->plane) < 0)
2754                 {
2755                         VectorNegate(p->plane.normal, p->plane.normal);
2756                         p->plane.dist *= -1;
2757                         PlaneClassify(&p->plane);
2758                 }
2759                 // clear materialflags and pvs
2760                 p->materialflags = 0;
2761                 p->pvsvalid = false;
2762         }
2763         // merge this surface's materialflags into the waterplane
2764         p->materialflags |= surface->texture->currentframe->currentmaterialflags;
2765         // merge this surface's PVS into the waterplane
2766         VectorMAM(0.5f, surface->mins, 0.5f, surface->maxs, center);
2767         if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) && r_refdef.worldmodel && r_refdef.worldmodel->brush.FatPVS
2768          && r_refdef.worldmodel->brush.PointInLeaf && r_refdef.worldmodel->brush.PointInLeaf(r_refdef.worldmodel, center)->clusterindex >= 0)
2769         {
2770                 r_refdef.worldmodel->brush.FatPVS(r_refdef.worldmodel, center, 2, p->pvsbits, sizeof(p->pvsbits), p->pvsvalid);
2771                 p->pvsvalid = true;
2772         }
2773 }
2774
2775 static void R_Water_ProcessPlanes(void)
2776 {
2777         r_view_t originalview;
2778         int planeindex;
2779         r_waterstate_waterplane_t *p;
2780
2781         originalview = r_view;
2782
2783         // make sure enough textures are allocated
2784         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
2785         {
2786                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
2787                 {
2788                         if (!p->texture_refraction)
2789                                 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);
2790                         if (!p->texture_refraction)
2791                                 goto error;
2792                 }
2793
2794                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION))
2795                 {
2796                         if (!p->texture_reflection)
2797                                 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);
2798                         if (!p->texture_reflection)
2799                                 goto error;
2800                 }
2801         }
2802
2803         // render views
2804         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
2805         {
2806                 r_view.showdebug = false;
2807                 r_view.width = r_waterstate.waterwidth;
2808                 r_view.height = r_waterstate.waterheight;
2809                 r_view.useclipplane = true;
2810                 r_waterstate.renderingscene = true;
2811
2812                 // render the normal view scene and copy into texture
2813                 // (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)
2814                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
2815                 {
2816                         r_view.clipplane = p->plane;
2817                         VectorNegate(r_view.clipplane.normal, r_view.clipplane.normal);
2818                         r_view.clipplane.dist = -r_view.clipplane.dist;
2819                         PlaneClassify(&r_view.clipplane);
2820
2821                         R_RenderScene(false);
2822
2823                         // copy view into the screen texture
2824                         R_Mesh_TexBind(0, R_GetTexture(p->texture_refraction));
2825                         GL_ActiveTexture(0);
2826                         CHECKGLERROR
2827                         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
2828                 }
2829
2830                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION))
2831                 {
2832                         // render reflected scene and copy into texture
2833                         Matrix4x4_Reflect(&r_view.matrix, p->plane.normal[0], p->plane.normal[1], p->plane.normal[2], p->plane.dist, -2);
2834                         r_view.clipplane = p->plane;
2835                         // reverse the cullface settings for this render
2836                         r_view.cullface_front = GL_FRONT;
2837                         r_view.cullface_back = GL_BACK;
2838                         if (r_refdef.worldmodel && r_refdef.worldmodel->brush.num_pvsclusterbytes)
2839                         {
2840                                 r_view.usecustompvs = true;
2841                                 if (p->pvsvalid)
2842                                         memcpy(r_viewcache.world_pvsbits, p->pvsbits, r_refdef.worldmodel->brush.num_pvsclusterbytes);
2843                                 else
2844                                         memset(r_viewcache.world_pvsbits, 0xFF, r_refdef.worldmodel->brush.num_pvsclusterbytes);
2845                         }
2846
2847                         R_ResetViewRendering3D();
2848                         R_ClearScreen(r_refdef.fogenabled);
2849                         if (r_timereport_active)
2850                                 R_TimeReport("viewclear");
2851
2852                         R_RenderScene(false);
2853
2854                         R_Mesh_TexBind(0, R_GetTexture(p->texture_reflection));
2855                         GL_ActiveTexture(0);
2856                         CHECKGLERROR
2857                         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
2858
2859                         R_ResetViewRendering3D();
2860                         R_ClearScreen(r_refdef.fogenabled);
2861                         if (r_timereport_active)
2862                                 R_TimeReport("viewclear");
2863                 }
2864
2865                 r_view = originalview;
2866                 r_view.clear = true;
2867                 r_waterstate.renderingscene = false;
2868         }
2869         return;
2870 error:
2871         r_view = originalview;
2872         r_waterstate.renderingscene = false;
2873         Cvar_SetValueQuick(&r_water, 0);
2874         Con_Printf("R_Water_ProcessPlanes: Error: texture creation failed!  Turned off r_water.\n");
2875         return;
2876 }
2877
2878 void R_Bloom_StartFrame(void)
2879 {
2880         int bloomtexturewidth, bloomtextureheight, screentexturewidth, screentextureheight;
2881
2882         // set bloomwidth and bloomheight to the bloom resolution that will be
2883         // used (often less than the screen resolution for faster rendering)
2884         r_bloomstate.bloomwidth = bound(1, r_bloom_resolution.integer, r_view.width);
2885         r_bloomstate.bloomheight = r_bloomstate.bloomwidth * r_view.height / r_view.width;
2886         r_bloomstate.bloomheight = bound(1, r_bloomstate.bloomheight, r_view.height);
2887
2888         // calculate desired texture sizes
2889         if (gl_support_arb_texture_non_power_of_two)
2890         {
2891                 screentexturewidth = r_view.width;
2892                 screentextureheight = r_view.height;
2893                 bloomtexturewidth = r_bloomstate.bloomwidth;
2894                 bloomtextureheight = r_bloomstate.bloomheight;
2895         }
2896         else
2897         {
2898                 for (screentexturewidth  = 1;screentexturewidth  < vid.width               ;screentexturewidth  *= 2);
2899                 for (screentextureheight = 1;screentextureheight < vid.height              ;screentextureheight *= 2);
2900                 for (bloomtexturewidth   = 1;bloomtexturewidth   < r_bloomstate.bloomwidth ;bloomtexturewidth   *= 2);
2901                 for (bloomtextureheight  = 1;bloomtextureheight  < r_bloomstate.bloomheight;bloomtextureheight  *= 2);
2902         }
2903
2904         if (r_hdr.integer)
2905         {
2906                 screentexturewidth = screentextureheight = 0;
2907         }
2908         else if (r_bloom.integer)
2909         {
2910         }
2911         else
2912         {
2913                 screentexturewidth = screentextureheight = 0;
2914                 bloomtexturewidth = bloomtextureheight = 0;
2915         }
2916
2917         if ((!bloomtexturewidth && !bloomtextureheight) || r_bloom_resolution.integer < 4 || r_bloom_blur.value < 1 || r_bloom_blur.value >= 512 || screentexturewidth > gl_max_texture_size || screentextureheight > gl_max_texture_size || bloomtexturewidth > gl_max_texture_size || bloomtextureheight > gl_max_texture_size)
2918         {
2919                 // can't use bloom if the parameters are too weird
2920                 // can't use bloom if the card does not support the texture size
2921                 if (r_bloomstate.texture_screen)
2922                         R_FreeTexture(r_bloomstate.texture_screen);
2923                 if (r_bloomstate.texture_bloom)
2924                         R_FreeTexture(r_bloomstate.texture_bloom);
2925                 memset(&r_bloomstate, 0, sizeof(r_bloomstate));
2926                 return;
2927         }
2928
2929         r_bloomstate.enabled = true;
2930         r_bloomstate.hdr = r_hdr.integer != 0;
2931
2932         // allocate textures as needed
2933         if (r_bloomstate.screentexturewidth != screentexturewidth || r_bloomstate.screentextureheight != screentextureheight)
2934         {
2935                 if (r_bloomstate.texture_screen)
2936                         R_FreeTexture(r_bloomstate.texture_screen);
2937                 r_bloomstate.texture_screen = NULL;
2938                 r_bloomstate.screentexturewidth = screentexturewidth;
2939                 r_bloomstate.screentextureheight = screentextureheight;
2940                 if (r_bloomstate.screentexturewidth && r_bloomstate.screentextureheight)
2941                         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);
2942         }
2943         if (r_bloomstate.bloomtexturewidth != bloomtexturewidth || r_bloomstate.bloomtextureheight != bloomtextureheight)
2944         {
2945                 if (r_bloomstate.texture_bloom)
2946                         R_FreeTexture(r_bloomstate.texture_bloom);
2947                 r_bloomstate.texture_bloom = NULL;
2948                 r_bloomstate.bloomtexturewidth = bloomtexturewidth;
2949                 r_bloomstate.bloomtextureheight = bloomtextureheight;
2950                 if (r_bloomstate.bloomtexturewidth && r_bloomstate.bloomtextureheight)
2951                         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);
2952         }
2953
2954         // set up a texcoord array for the full resolution screen image
2955         // (we have to keep this around to copy back during final render)
2956         r_bloomstate.screentexcoord2f[0] = 0;
2957         r_bloomstate.screentexcoord2f[1] = (float)r_view.height / (float)r_bloomstate.screentextureheight;
2958         r_bloomstate.screentexcoord2f[2] = (float)r_view.width / (float)r_bloomstate.screentexturewidth;
2959         r_bloomstate.screentexcoord2f[3] = (float)r_view.height / (float)r_bloomstate.screentextureheight;
2960         r_bloomstate.screentexcoord2f[4] = (float)r_view.width / (float)r_bloomstate.screentexturewidth;
2961         r_bloomstate.screentexcoord2f[5] = 0;
2962         r_bloomstate.screentexcoord2f[6] = 0;
2963         r_bloomstate.screentexcoord2f[7] = 0;
2964
2965         // set up a texcoord array for the reduced resolution bloom image
2966         // (which will be additive blended over the screen image)
2967         r_bloomstate.bloomtexcoord2f[0] = 0;
2968         r_bloomstate.bloomtexcoord2f[1] = (float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
2969         r_bloomstate.bloomtexcoord2f[2] = (float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
2970         r_bloomstate.bloomtexcoord2f[3] = (float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
2971         r_bloomstate.bloomtexcoord2f[4] = (float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
2972         r_bloomstate.bloomtexcoord2f[5] = 0;
2973         r_bloomstate.bloomtexcoord2f[6] = 0;
2974         r_bloomstate.bloomtexcoord2f[7] = 0;
2975 }
2976
2977 void R_Bloom_CopyScreenTexture(float colorscale)
2978 {
2979         r_refdef.stats.bloom++;
2980
2981         R_ResetViewRendering2D();
2982         R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
2983         R_Mesh_ColorPointer(NULL, 0, 0);
2984         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.screentexcoord2f, 0, 0);
2985         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_screen));
2986
2987         // copy view into the screen texture
2988         GL_ActiveTexture(0);
2989         CHECKGLERROR
2990         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
2991         r_refdef.stats.bloom_copypixels += r_view.width * r_view.height;
2992
2993         // now scale it down to the bloom texture size
2994         CHECKGLERROR
2995         qglViewport(r_view.x, vid.height - (r_view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
2996         GL_BlendFunc(GL_ONE, GL_ZERO);
2997         GL_Color(colorscale, colorscale, colorscale, 1);
2998         // TODO: optimize with multitexture or GLSL
2999         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3000         r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3001
3002         // we now have a bloom image in the framebuffer
3003         // copy it into the bloom image texture for later processing
3004         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3005         GL_ActiveTexture(0);
3006         CHECKGLERROR
3007         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view.x, vid.height - (r_view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3008         r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3009 }
3010
3011 void R_Bloom_CopyHDRTexture(void)
3012 {
3013         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3014         GL_ActiveTexture(0);
3015         CHECKGLERROR
3016         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
3017         r_refdef.stats.bloom_copypixels += r_view.width * r_view.height;
3018 }
3019
3020 void R_Bloom_MakeTexture(void)
3021 {
3022         int x, range, dir;
3023         float xoffset, yoffset, r, brighten;
3024
3025         r_refdef.stats.bloom++;
3026
3027         R_ResetViewRendering2D();
3028         R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3029         R_Mesh_ColorPointer(NULL, 0, 0);
3030
3031         // we have a bloom image in the framebuffer
3032         CHECKGLERROR
3033         qglViewport(r_view.x, vid.height - (r_view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3034
3035         for (x = 1;x < min(r_bloom_colorexponent.value, 32);)
3036         {
3037                 x *= 2;
3038                 r = bound(0, r_bloom_colorexponent.value / x, 1);
3039                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
3040                 GL_Color(r, r, r, 1);
3041                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3042                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3043                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3044                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3045
3046                 // copy the vertically blurred bloom view to a texture
3047                 GL_ActiveTexture(0);
3048                 CHECKGLERROR
3049                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view.x, vid.height - (r_view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3050                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3051         }
3052
3053         range = r_bloom_blur.integer * r_bloomstate.bloomwidth / 320;
3054         brighten = r_bloom_brighten.value;
3055         if (r_hdr.integer)
3056                 brighten *= r_hdr_range.value;
3057         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3058         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.offsettexcoord2f, 0, 0);
3059
3060         for (dir = 0;dir < 2;dir++)
3061         {
3062                 // blend on at multiple vertical offsets to achieve a vertical blur
3063                 // TODO: do offset blends using GLSL
3064                 GL_BlendFunc(GL_ONE, GL_ZERO);
3065                 for (x = -range;x <= range;x++)
3066                 {
3067                         if (!dir){xoffset = 0;yoffset = x;}
3068                         else {xoffset = x;yoffset = 0;}
3069                         xoffset /= (float)r_bloomstate.bloomtexturewidth;
3070                         yoffset /= (float)r_bloomstate.bloomtextureheight;
3071                         // compute a texcoord array with the specified x and y offset
3072                         r_bloomstate.offsettexcoord2f[0] = xoffset+0;
3073                         r_bloomstate.offsettexcoord2f[1] = yoffset+(float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3074                         r_bloomstate.offsettexcoord2f[2] = xoffset+(float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
3075                         r_bloomstate.offsettexcoord2f[3] = yoffset+(float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3076                         r_bloomstate.offsettexcoord2f[4] = xoffset+(float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
3077                         r_bloomstate.offsettexcoord2f[5] = yoffset+0;
3078                         r_bloomstate.offsettexcoord2f[6] = xoffset+0;
3079                         r_bloomstate.offsettexcoord2f[7] = yoffset+0;
3080                         // this r value looks like a 'dot' particle, fading sharply to
3081                         // black at the edges
3082                         // (probably not realistic but looks good enough)
3083                         //r = ((range*range+1)/((float)(x*x+1)))/(range*2+1);
3084                         //r = (dir ? 1.0f : brighten)/(range*2+1);
3085                         r = (dir ? 1.0f : brighten)/(range*2+1)*(1 - x*x/(float)(range*range));
3086                         GL_Color(r, r, r, 1);
3087                         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3088                         r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3089                         GL_BlendFunc(GL_ONE, GL_ONE);
3090                 }
3091
3092                 // copy the vertically blurred bloom view to a texture
3093                 GL_ActiveTexture(0);
3094                 CHECKGLERROR
3095                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view.x, vid.height - (r_view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3096                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3097         }
3098
3099         // apply subtract last
3100         // (just like it would be in a GLSL shader)
3101         if (r_bloom_colorsubtract.value > 0 && gl_support_ext_blend_subtract)
3102         {
3103                 GL_BlendFunc(GL_ONE, GL_ZERO);
3104                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3105                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3106                 GL_Color(1, 1, 1, 1);
3107                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3108                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3109
3110                 GL_BlendFunc(GL_ONE, GL_ONE);
3111                 qglBlendEquationEXT(GL_FUNC_REVERSE_SUBTRACT_EXT);
3112                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
3113                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3114                 GL_Color(r_bloom_colorsubtract.value, r_bloom_colorsubtract.value, r_bloom_colorsubtract.value, 1);
3115                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3116                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3117                 qglBlendEquationEXT(GL_FUNC_ADD_EXT);
3118
3119                 // copy the darkened bloom view to a texture
3120                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3121                 GL_ActiveTexture(0);
3122                 CHECKGLERROR
3123                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view.x, vid.height - (r_view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3124                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3125         }
3126 }
3127
3128 void R_HDR_RenderBloomTexture(void)
3129 {
3130         int oldwidth, oldheight;
3131         float oldcolorscale;
3132
3133         oldcolorscale = r_view.colorscale;
3134         oldwidth = r_view.width;
3135         oldheight = r_view.height;
3136         r_view.width = r_bloomstate.bloomwidth;
3137         r_view.height = r_bloomstate.bloomheight;
3138
3139         // TODO: support GL_EXT_framebuffer_object rather than reusing the framebuffer?  it might improve SLI performance.
3140         // TODO: add exposure compensation features
3141         // TODO: add fp16 framebuffer support
3142
3143         r_view.showdebug = false;
3144         r_view.colorscale *= r_bloom_colorscale.value / bound(1, r_hdr_range.value, 16);
3145
3146         R_ClearScreen(r_refdef.fogenabled);
3147         if (r_timereport_active)
3148                 R_TimeReport("HDRclear");
3149
3150         r_waterstate.numwaterplanes = 0;
3151         R_RenderScene(r_waterstate.enabled);
3152         r_view.showdebug = true;
3153
3154         R_ResetViewRendering2D();
3155
3156         R_Bloom_CopyHDRTexture();
3157         R_Bloom_MakeTexture();
3158
3159         // restore the view settings
3160         r_view.width = oldwidth;
3161         r_view.height = oldheight;
3162         r_view.colorscale = oldcolorscale;
3163
3164         R_ResetViewRendering3D();
3165
3166         R_ClearScreen(r_refdef.fogenabled);
3167         if (r_timereport_active)
3168                 R_TimeReport("viewclear");
3169 }
3170
3171 static void R_BlendView(void)
3172 {
3173         if (r_bloomstate.enabled && r_bloomstate.hdr)
3174         {
3175                 // render high dynamic range bloom effect
3176                 // the bloom texture was made earlier this render, so we just need to
3177                 // blend it onto the screen...
3178                 R_ResetViewRendering2D();
3179                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3180                 R_Mesh_ColorPointer(NULL, 0, 0);
3181                 GL_Color(1, 1, 1, 1);
3182                 GL_BlendFunc(GL_ONE, GL_ONE);
3183                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3184                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3185                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3186                 r_refdef.stats.bloom_drawpixels += r_view.width * r_view.height;
3187         }
3188         else if (r_bloomstate.enabled)
3189         {
3190                 // render simple bloom effect
3191                 // copy the screen and shrink it and darken it for the bloom process
3192                 R_Bloom_CopyScreenTexture(r_bloom_colorscale.value);
3193                 // make the bloom texture
3194                 R_Bloom_MakeTexture();
3195                 // put the original screen image back in place and blend the bloom
3196                 // texture on it
3197                 R_ResetViewRendering2D();
3198                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3199                 R_Mesh_ColorPointer(NULL, 0, 0);
3200                 GL_Color(1, 1, 1, 1);
3201                 GL_BlendFunc(GL_ONE, GL_ZERO);
3202                 // do both in one pass if possible
3203                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3204                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3205                 if (r_textureunits.integer >= 2 && gl_combine.integer)
3206                 {
3207                         R_Mesh_TexCombine(1, GL_ADD, GL_ADD, 1, 1);
3208                         R_Mesh_TexBind(1, R_GetTexture(r_bloomstate.texture_screen));
3209                         R_Mesh_TexCoordPointer(1, 2, r_bloomstate.screentexcoord2f, 0, 0);
3210                 }
3211                 else
3212                 {
3213                         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3214                         r_refdef.stats.bloom_drawpixels += r_view.width * r_view.height;
3215                         // now blend on the bloom texture
3216                         GL_BlendFunc(GL_ONE, GL_ONE);
3217                         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_screen));
3218                         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.screentexcoord2f, 0, 0);
3219                 }
3220                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3221                 r_refdef.stats.bloom_drawpixels += r_view.width * r_view.height;
3222         }
3223         if (r_refdef.viewblend[3] >= (1.0f / 256.0f))
3224         {
3225                 // apply a color tint to the whole view
3226                 R_ResetViewRendering2D();
3227                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3228                 R_Mesh_ColorPointer(NULL, 0, 0);
3229                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3230                 GL_Color(r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]);
3231                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3232         }
3233 }
3234
3235 void R_RenderScene(qboolean addwaterplanes);
3236
3237 matrix4x4_t r_waterscrollmatrix;
3238
3239 void R_UpdateFogColor(void) // needs to be called before HDR subrender too, as that changes colorscale!
3240 {
3241         if (r_refdef.fog_density)
3242         {
3243                 r_refdef.fogcolor[0] = r_refdef.fog_red;
3244                 r_refdef.fogcolor[1] = r_refdef.fog_green;
3245                 r_refdef.fogcolor[2] = r_refdef.fog_blue;
3246
3247                 {
3248                         vec3_t fogvec;
3249                         VectorCopy(r_refdef.fogcolor, fogvec);
3250                         if(r_glsl.integer && (r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)) // need to support contrast boost
3251                         {
3252                                 //   color.rgb /= ((ContrastBoost - 1) * color.rgb + 1);
3253                                 fogvec[0] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[0] + 1);
3254                                 fogvec[1] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[1] + 1);
3255                                 fogvec[2] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[2] + 1);
3256                         }
3257                         //   color.rgb *= ContrastBoost * SceneBrightness;
3258                         VectorScale(fogvec, r_view.colorscale, fogvec);
3259                         r_refdef.fogcolor[0] = bound(0.0f, fogvec[0], 1.0f);
3260                         r_refdef.fogcolor[1] = bound(0.0f, fogvec[1], 1.0f);
3261                         r_refdef.fogcolor[2] = bound(0.0f, fogvec[2], 1.0f);
3262                 }
3263         }
3264 }
3265
3266 void R_UpdateVariables(void)
3267 {
3268         R_Textures_Frame();
3269
3270         r_refdef.farclip = 4096;
3271         if (r_refdef.worldmodel)
3272                 r_refdef.farclip += VectorDistance(r_refdef.worldmodel->normalmins, r_refdef.worldmodel->normalmaxs);
3273         r_refdef.nearclip = bound (0.001f, r_nearclip.value, r_refdef.farclip - 1.0f);
3274
3275         if (r_shadow_frontsidecasting.integer < 0 || r_shadow_frontsidecasting.integer > 1)
3276                 Cvar_SetValueQuick(&r_shadow_frontsidecasting, 1);
3277         r_refdef.polygonfactor = 0;
3278         r_refdef.polygonoffset = 0;
3279         r_refdef.shadowpolygonfactor = r_refdef.polygonfactor + r_shadow_polygonfactor.value * (r_shadow_frontsidecasting.integer ? 1 : -1);
3280         r_refdef.shadowpolygonoffset = r_refdef.polygonoffset + r_shadow_polygonoffset.value * (r_shadow_frontsidecasting.integer ? 1 : -1);
3281
3282         r_refdef.rtworld = r_shadow_realtime_world.integer;
3283         r_refdef.rtworldshadows = r_shadow_realtime_world_shadows.integer && gl_stencil;
3284         r_refdef.rtdlight = (r_shadow_realtime_world.integer || r_shadow_realtime_dlight.integer) && !gl_flashblend.integer && r_dynamic.integer;
3285         r_refdef.rtdlightshadows = r_refdef.rtdlight && r_shadow_realtime_dlight_shadows.integer && gl_stencil;
3286         r_refdef.lightmapintensity = r_refdef.rtworld ? r_shadow_realtime_world_lightmaps.value : 1;
3287         if (r_showsurfaces.integer)
3288         {
3289                 r_refdef.rtworld = false;
3290                 r_refdef.rtworldshadows = false;
3291                 r_refdef.rtdlight = false;
3292                 r_refdef.rtdlightshadows = false;
3293                 r_refdef.lightmapintensity = 0;
3294         }
3295
3296         if (gamemode == GAME_NEHAHRA)
3297         {
3298                 if (gl_fogenable.integer)
3299                 {
3300                         r_refdef.oldgl_fogenable = true;
3301                         r_refdef.fog_density = gl_fogdensity.value;
3302                         r_refdef.fog_red = gl_fogred.value;
3303                         r_refdef.fog_green = gl_foggreen.value;
3304                         r_refdef.fog_blue = gl_fogblue.value;
3305                         r_refdef.fog_alpha = 1;
3306                         r_refdef.fog_start = 0;
3307                         r_refdef.fog_end = gl_skyclip.value;
3308                 }
3309                 else if (r_refdef.oldgl_fogenable)
3310                 {
3311                         r_refdef.oldgl_fogenable = false;
3312                         r_refdef.fog_density = 0;
3313                         r_refdef.fog_red = 0;
3314                         r_refdef.fog_green = 0;
3315                         r_refdef.fog_blue = 0;
3316                         r_refdef.fog_alpha = 0;
3317                         r_refdef.fog_start = 0;
3318                         r_refdef.fog_end = 0;
3319                 }
3320         }
3321
3322         r_refdef.fog_alpha = bound(0, r_refdef.fog_alpha, 1);
3323         r_refdef.fog_start = max(0, r_refdef.fog_start);
3324         r_refdef.fog_end = max(r_refdef.fog_start + 0.01, r_refdef.fog_end);
3325
3326         // R_UpdateFogColor(); // why? R_RenderScene does it anyway
3327
3328         if (r_refdef.fog_density)
3329         {
3330                 r_refdef.fogenabled = true;
3331                 // this is the point where the fog reaches 0.9986 alpha, which we
3332                 // consider a good enough cutoff point for the texture
3333                 // (0.9986 * 256 == 255.6)
3334                 if (r_fog_exp2.integer)
3335                         r_refdef.fogrange = 32 / (r_refdef.fog_density * r_refdef.fog_density) + r_refdef.fog_start;
3336                 else
3337                         r_refdef.fogrange = 2048 / r_refdef.fog_density + r_refdef.fog_start;
3338                 r_refdef.fogrange = bound(r_refdef.fog_start, r_refdef.fogrange, r_refdef.fog_end);
3339                 r_refdef.fograngerecip = 1.0f / r_refdef.fogrange;
3340                 r_refdef.fogmasktabledistmultiplier = FOGMASKTABLEWIDTH * r_refdef.fograngerecip;
3341                 // fog color was already set
3342                 // update the fog texture
3343                 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)
3344                         R_BuildFogTexture();
3345         }
3346         else
3347                 r_refdef.fogenabled = false;
3348 }
3349
3350 /*
3351 ================
3352 R_RenderView
3353 ================
3354 */
3355 void R_RenderView(void)
3356 {
3357         if (!r_refdef.entities/* || !r_refdef.worldmodel*/)
3358                 return; //Host_Error ("R_RenderView: NULL worldmodel");
3359
3360         r_view.colorscale = r_hdr_scenebrightness.value;
3361
3362         R_Shadow_UpdateWorldLightSelection();
3363
3364         R_Bloom_StartFrame();
3365         R_Water_StartFrame();
3366
3367         CHECKGLERROR
3368         if (r_timereport_active)
3369                 R_TimeReport("viewsetup");
3370
3371         R_ResetViewRendering3D();
3372
3373         if (r_view.clear || r_refdef.fogenabled)
3374         {
3375                 R_ClearScreen(r_refdef.fogenabled);
3376                 if (r_timereport_active)
3377                         R_TimeReport("viewclear");
3378         }
3379         r_view.clear = true;
3380
3381         r_view.showdebug = true;
3382
3383         // this produces a bloom texture to be used in R_BlendView() later
3384         if (r_hdr.integer)
3385                 R_HDR_RenderBloomTexture();
3386
3387         r_waterstate.numwaterplanes = 0;
3388         R_RenderScene(r_waterstate.enabled);
3389
3390         R_BlendView();
3391         if (r_timereport_active)
3392                 R_TimeReport("blendview");
3393
3394         GL_Scissor(0, 0, vid.width, vid.height);
3395         GL_ScissorTest(false);
3396         CHECKGLERROR
3397 }
3398
3399 extern void R_DrawLightningBeams (void);
3400 extern void VM_CL_AddPolygonsToMeshQueue (void);
3401 extern void R_DrawPortals (void);
3402 extern cvar_t cl_locs_show;
3403 static void R_DrawLocs(void);
3404 static void R_DrawEntityBBoxes(void);
3405 void R_RenderScene(qboolean addwaterplanes)
3406 {
3407         Matrix4x4_Invert_Simple(&r_view.inverse_matrix, &r_view.matrix);
3408         R_UpdateFogColor();
3409
3410         if (addwaterplanes)
3411         {
3412                 R_ResetViewRendering3D();
3413
3414                 R_View_Update();
3415                 if (r_timereport_active)
3416                         R_TimeReport("watervis");
3417
3418                 if (cl.csqc_vidvars.drawworld && r_refdef.worldmodel && r_refdef.worldmodel->DrawAddWaterPlanes)
3419                 {
3420                         r_refdef.worldmodel->DrawAddWaterPlanes(r_refdef.worldentity);
3421                         if (r_timereport_active)
3422                                 R_TimeReport("waterworld");
3423                 }
3424
3425                 // don't let sound skip if going slow
3426                 if (r_refdef.extraupdate)
3427                         S_ExtraUpdate ();
3428
3429                 R_DrawModelsAddWaterPlanes();
3430                 if (r_timereport_active)
3431                         R_TimeReport("watermodels");
3432
3433                 R_Water_ProcessPlanes();
3434                 if (r_timereport_active)
3435                         R_TimeReport("waterscenes");
3436         }
3437
3438         R_ResetViewRendering3D();
3439
3440         // don't let sound skip if going slow
3441         if (r_refdef.extraupdate)
3442                 S_ExtraUpdate ();
3443
3444         R_MeshQueue_BeginScene();
3445
3446         R_SkyStartFrame();
3447
3448         R_View_Update();
3449         if (r_timereport_active)
3450                 R_TimeReport("visibility");
3451
3452         Matrix4x4_CreateTranslate(&r_waterscrollmatrix, sin(r_refdef.time) * 0.025 * r_waterscroll.value, sin(r_refdef.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
3453
3454         if (cl.csqc_vidvars.drawworld)
3455         {
3456                 // don't let sound skip if going slow
3457                 if (r_refdef.extraupdate)
3458                         S_ExtraUpdate ();
3459
3460                 if (r_refdef.worldmodel && r_refdef.worldmodel->DrawSky)
3461                 {
3462                         r_refdef.worldmodel->DrawSky(r_refdef.worldentity);
3463                         if (r_timereport_active)
3464                                 R_TimeReport("worldsky");
3465                 }
3466
3467                 if (R_DrawBrushModelsSky() && r_timereport_active)
3468                         R_TimeReport("bmodelsky");
3469         }
3470
3471         if (r_depthfirst.integer >= 1 && cl.csqc_vidvars.drawworld && r_refdef.worldmodel && r_refdef.worldmodel->DrawDepth)
3472         {
3473                 r_refdef.worldmodel->DrawDepth(r_refdef.worldentity);
3474                 if (r_timereport_active)
3475                         R_TimeReport("worlddepth");
3476         }
3477         if (r_depthfirst.integer >= 2)
3478         {
3479                 R_DrawModelsDepth();
3480                 if (r_timereport_active)
3481                         R_TimeReport("modeldepth");
3482         }
3483
3484         if (cl.csqc_vidvars.drawworld && r_refdef.worldmodel && r_refdef.worldmodel->Draw)
3485         {
3486                 r_refdef.worldmodel->Draw(r_refdef.worldentity);
3487                 if (r_timereport_active)
3488                         R_TimeReport("world");
3489         }
3490
3491         // don't let sound skip if going slow
3492         if (r_refdef.extraupdate)
3493                 S_ExtraUpdate ();
3494
3495         R_DrawModels();
3496         if (r_timereport_active)
3497                 R_TimeReport("models");
3498
3499         // don't let sound skip if going slow
3500         if (r_refdef.extraupdate)
3501                 S_ExtraUpdate ();
3502
3503         if (r_shadows.integer > 0 && r_refdef.lightmapintensity > 0)
3504         {
3505                 R_DrawModelShadows();
3506
3507                 R_ResetViewRendering3D();
3508
3509                 // don't let sound skip if going slow
3510                 if (r_refdef.extraupdate)
3511                         S_ExtraUpdate ();
3512         }
3513
3514         R_ShadowVolumeLighting(false);
3515         if (r_timereport_active)
3516                 R_TimeReport("rtlights");
3517
3518         // don't let sound skip if going slow
3519         if (r_refdef.extraupdate)
3520                 S_ExtraUpdate ();
3521
3522         if (cl.csqc_vidvars.drawworld)
3523         {
3524                 R_DrawLightningBeams();
3525                 if (r_timereport_active)
3526                         R_TimeReport("lightning");
3527
3528                 R_DrawDecals();
3529                 if (r_timereport_active)
3530                         R_TimeReport("decals");
3531
3532                 R_DrawParticles();
3533                 if (r_timereport_active)
3534                         R_TimeReport("particles");
3535
3536                 R_DrawExplosions();
3537                 if (r_timereport_active)
3538                         R_TimeReport("explosions");
3539         }
3540
3541         if (gl_support_fragment_shader)
3542         {
3543                 qglUseProgramObjectARB(0);CHECKGLERROR
3544         }
3545         VM_CL_AddPolygonsToMeshQueue();
3546
3547         if (r_view.showdebug)
3548         {
3549                 if (cl_locs_show.integer)
3550                 {
3551                         R_DrawLocs();
3552                         if (r_timereport_active)
3553                                 R_TimeReport("showlocs");
3554                 }
3555
3556                 if (r_drawportals.integer)
3557                 {
3558                         R_DrawPortals();
3559                         if (r_timereport_active)
3560                                 R_TimeReport("portals");
3561                 }
3562
3563                 if (r_showbboxes.value > 0)
3564                 {
3565                         R_DrawEntityBBoxes();
3566                         if (r_timereport_active)
3567                                 R_TimeReport("bboxes");
3568                 }
3569         }
3570
3571         if (gl_support_fragment_shader)
3572         {
3573                 qglUseProgramObjectARB(0);CHECKGLERROR
3574         }
3575         R_MeshQueue_RenderTransparent();
3576         if (r_timereport_active)
3577                 R_TimeReport("drawtrans");
3578
3579         if (gl_support_fragment_shader)
3580         {
3581                 qglUseProgramObjectARB(0);CHECKGLERROR
3582         }
3583
3584         if (r_view.showdebug && r_refdef.worldmodel && r_refdef.worldmodel->DrawDebug && (r_showtris.value > 0 || r_shownormals.value > 0 || r_showcollisionbrushes.value > 0))
3585         {
3586                 r_refdef.worldmodel->DrawDebug(r_refdef.worldentity);
3587                 if (r_timereport_active)
3588                         R_TimeReport("worlddebug");
3589                 R_DrawModelsDebug();
3590                 if (r_timereport_active)
3591                         R_TimeReport("modeldebug");
3592         }
3593
3594         if (gl_support_fragment_shader)
3595         {
3596                 qglUseProgramObjectARB(0);CHECKGLERROR
3597         }
3598
3599         if (cl.csqc_vidvars.drawworld)
3600         {
3601                 R_DrawCoronas();
3602                 if (r_timereport_active)
3603                         R_TimeReport("coronas");
3604         }
3605
3606         // don't let sound skip if going slow
3607         if (r_refdef.extraupdate)
3608                 S_ExtraUpdate ();
3609
3610         R_ResetViewRendering2D();
3611 }
3612
3613 static const int bboxelements[36] =
3614 {
3615         5, 1, 3, 5, 3, 7,
3616         6, 2, 0, 6, 0, 4,
3617         7, 3, 2, 7, 2, 6,
3618         4, 0, 1, 4, 1, 5,
3619         4, 5, 7, 4, 7, 6,
3620         1, 0, 2, 1, 2, 3,
3621 };
3622
3623 void R_DrawBBoxMesh(vec3_t mins, vec3_t maxs, float cr, float cg, float cb, float ca)
3624 {
3625         int i;
3626         float *v, *c, f1, f2, vertex3f[8*3], color4f[8*4];
3627         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3628         GL_DepthMask(false);
3629         GL_DepthRange(0, 1);
3630         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
3631         R_Mesh_Matrix(&identitymatrix);
3632         R_Mesh_ResetTextureState();
3633
3634         vertex3f[ 0] = mins[0];vertex3f[ 1] = mins[1];vertex3f[ 2] = mins[2]; //
3635         vertex3f[ 3] = maxs[0];vertex3f[ 4] = mins[1];vertex3f[ 5] = mins[2];
3636         vertex3f[ 6] = mins[0];vertex3f[ 7] = maxs[1];vertex3f[ 8] = mins[2];
3637         vertex3f[ 9] = maxs[0];vertex3f[10] = maxs[1];vertex3f[11] = mins[2];
3638         vertex3f[12] = mins[0];vertex3f[13] = mins[1];vertex3f[14] = maxs[2];
3639         vertex3f[15] = maxs[0];vertex3f[16] = mins[1];vertex3f[17] = maxs[2];
3640         vertex3f[18] = mins[0];vertex3f[19] = maxs[1];vertex3f[20] = maxs[2];
3641         vertex3f[21] = maxs[0];vertex3f[22] = maxs[1];vertex3f[23] = maxs[2];
3642         R_FillColors(color4f, 8, cr, cg, cb, ca);
3643         if (r_refdef.fogenabled)
3644         {
3645                 for (i = 0, v = vertex3f, c = color4f;i < 8;i++, v += 3, c += 4)
3646                 {
3647                         f1 = FogPoint_World(v);
3648                         f2 = 1 - f1;
3649                         c[0] = c[0] * f1 + r_refdef.fogcolor[0] * f2;
3650                         c[1] = c[1] * f1 + r_refdef.fogcolor[1] * f2;
3651                         c[2] = c[2] * f1 + r_refdef.fogcolor[2] * f2;
3652                 }
3653         }
3654         R_Mesh_VertexPointer(vertex3f, 0, 0);
3655         R_Mesh_ColorPointer(color4f, 0, 0);
3656         R_Mesh_ResetTextureState();
3657         R_Mesh_Draw(0, 8, 12, bboxelements, 0, 0);
3658 }
3659
3660 static void R_DrawEntityBBoxes_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
3661 {
3662         int i;
3663         float color[4];
3664         prvm_edict_t *edict;
3665         // this function draws bounding boxes of server entities
3666         if (!sv.active)
3667                 return;
3668         SV_VM_Begin();
3669         for (i = 0;i < numsurfaces;i++)
3670         {
3671                 edict = PRVM_EDICT_NUM(surfacelist[i]);
3672                 switch ((int)edict->fields.server->solid)
3673                 {
3674                         case SOLID_NOT:      Vector4Set(color, 1, 1, 1, 0.05);break;
3675                         case SOLID_TRIGGER:  Vector4Set(color, 1, 0, 1, 0.10);break;
3676                         case SOLID_BBOX:     Vector4Set(color, 0, 1, 0, 0.10);break;
3677                         case SOLID_SLIDEBOX: Vector4Set(color, 1, 0, 0, 0.10);break;
3678                         case SOLID_BSP:      Vector4Set(color, 0, 0, 1, 0.05);break;
3679                         default:             Vector4Set(color, 0, 0, 0, 0.50);break;
3680                 }
3681                 color[3] *= r_showbboxes.value;
3682                 color[3] = bound(0, color[3], 1);
3683                 GL_DepthTest(!r_showdisabledepthtest.integer);
3684                 GL_CullFace(r_view.cullface_front);
3685                 R_DrawBBoxMesh(edict->priv.server->areamins, edict->priv.server->areamaxs, color[0], color[1], color[2], color[3]);
3686         }
3687         SV_VM_End();
3688 }
3689
3690 static void R_DrawEntityBBoxes(void)
3691 {
3692         int i;
3693         prvm_edict_t *edict;
3694         vec3_t center;
3695         // this function draws bounding boxes of server entities
3696         if (!sv.active)
3697                 return;
3698         SV_VM_Begin();
3699         for (i = 0;i < prog->num_edicts;i++)
3700         {
3701                 edict = PRVM_EDICT_NUM(i);
3702                 if (edict->priv.server->free)
3703                         continue;
3704                 VectorLerp(edict->priv.server->areamins, 0.5f, edict->priv.server->areamaxs, center);
3705                 R_MeshQueue_AddTransparent(center, R_DrawEntityBBoxes_Callback, (entity_render_t *)NULL, i, (rtlight_t *)NULL);
3706         }
3707         SV_VM_End();
3708 }
3709
3710 int nomodelelements[24] =
3711 {
3712         5, 2, 0,
3713         5, 1, 2,
3714         5, 0, 3,
3715         5, 3, 1,
3716         0, 2, 4,
3717         2, 1, 4,
3718         3, 0, 4,
3719         1, 3, 4
3720 };
3721
3722 float nomodelvertex3f[6*3] =
3723 {
3724         -16,   0,   0,
3725          16,   0,   0,
3726           0, -16,   0,
3727           0,  16,   0,
3728           0,   0, -16,
3729           0,   0,  16
3730 };
3731
3732 float nomodelcolor4f[6*4] =
3733 {
3734         0.0f, 0.0f, 0.5f, 1.0f,
3735         0.0f, 0.0f, 0.5f, 1.0f,
3736         0.0f, 0.5f, 0.0f, 1.0f,
3737         0.0f, 0.5f, 0.0f, 1.0f,
3738         0.5f, 0.0f, 0.0f, 1.0f,
3739         0.5f, 0.0f, 0.0f, 1.0f
3740 };
3741
3742 void R_DrawNoModel_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
3743 {
3744         int i;
3745         float f1, f2, *c;
3746         float color4f[6*4];
3747         // this is only called once per entity so numsurfaces is always 1, and
3748         // surfacelist is always {0}, so this code does not handle batches
3749         R_Mesh_Matrix(&ent->matrix);
3750
3751         if (ent->flags & EF_ADDITIVE)
3752         {
3753                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
3754                 GL_DepthMask(false);
3755         }
3756         else if (ent->alpha < 1)
3757         {
3758                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3759                 GL_DepthMask(false);
3760         }
3761         else
3762         {
3763                 GL_BlendFunc(GL_ONE, GL_ZERO);
3764                 GL_DepthMask(true);
3765         }
3766         GL_DepthRange(0, (ent->flags & RENDER_VIEWMODEL) ? 0.0625 : 1);
3767         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
3768         GL_DepthTest(!(ent->effects & EF_NODEPTHTEST));
3769         GL_CullFace((ent->effects & EF_DOUBLESIDED) ? GL_NONE : r_view.cullface_back);
3770         R_Mesh_VertexPointer(nomodelvertex3f, 0, 0);
3771         if (r_refdef.fogenabled)
3772         {
3773                 vec3_t org;
3774                 memcpy(color4f, nomodelcolor4f, sizeof(float[6*4]));
3775                 R_Mesh_ColorPointer(color4f, 0, 0);
3776                 Matrix4x4_OriginFromMatrix(&ent->matrix, org);
3777                 f1 = FogPoint_World(org);
3778                 f2 = 1 - f1;
3779                 for (i = 0, c = color4f;i < 6;i++, c += 4)
3780                 {
3781                         c[0] = (c[0] * f1 + r_refdef.fogcolor[0] * f2);
3782                         c[1] = (c[1] * f1 + r_refdef.fogcolor[1] * f2);
3783                         c[2] = (c[2] * f1 + r_refdef.fogcolor[2] * f2);
3784                         c[3] *= ent->alpha;
3785                 }
3786         }
3787         else if (ent->alpha != 1)
3788         {
3789                 memcpy(color4f, nomodelcolor4f, sizeof(float[6*4]));
3790                 R_Mesh_ColorPointer(color4f, 0, 0);
3791                 for (i = 0, c = color4f;i < 6;i++, c += 4)
3792                         c[3] *= ent->alpha;
3793         }
3794         else
3795                 R_Mesh_ColorPointer(nomodelcolor4f, 0, 0);
3796         R_Mesh_ResetTextureState();
3797         R_Mesh_Draw(0, 6, 8, nomodelelements, 0, 0);
3798 }
3799
3800 void R_DrawNoModel(entity_render_t *ent)
3801 {
3802         vec3_t org;
3803         Matrix4x4_OriginFromMatrix(&ent->matrix, org);
3804         //if ((ent->effects & EF_ADDITIVE) || (ent->alpha < 1))
3805                 R_MeshQueue_AddTransparent(ent->effects & EF_NODEPTHTEST ? r_view.origin : org, R_DrawNoModel_TransparentCallback, ent, 0, rsurface.rtlight);
3806         //else
3807         //      R_DrawNoModelCallback(ent, 0);
3808 }
3809
3810 void R_CalcBeam_Vertex3f (float *vert, const vec3_t org1, const vec3_t org2, float width)
3811 {
3812         vec3_t right1, right2, diff, normal;
3813
3814         VectorSubtract (org2, org1, normal);
3815
3816         // calculate 'right' vector for start
3817         VectorSubtract (r_view.origin, org1, diff);
3818         CrossProduct (normal, diff, right1);
3819         VectorNormalize (right1);
3820
3821         // calculate 'right' vector for end
3822         VectorSubtract (r_view.origin, org2, diff);
3823         CrossProduct (normal, diff, right2);
3824         VectorNormalize (right2);
3825
3826         vert[ 0] = org1[0] + width * right1[0];
3827         vert[ 1] = org1[1] + width * right1[1];
3828         vert[ 2] = org1[2] + width * right1[2];
3829         vert[ 3] = org1[0] - width * right1[0];
3830         vert[ 4] = org1[1] - width * right1[1];
3831         vert[ 5] = org1[2] - width * right1[2];
3832         vert[ 6] = org2[0] - width * right2[0];
3833         vert[ 7] = org2[1] - width * right2[1];
3834         vert[ 8] = org2[2] - width * right2[2];
3835         vert[ 9] = org2[0] + width * right2[0];
3836         vert[10] = org2[1] + width * right2[1];
3837         vert[11] = org2[2] + width * right2[2];
3838 }
3839
3840 float spritetexcoord2f[4*2] = {0, 1, 0, 0, 1, 0, 1, 1};
3841
3842 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)
3843 {
3844         float fog = 1.0f;
3845         float vertex3f[12];
3846
3847         if (r_refdef.fogenabled && !depthdisable) // TODO maybe make the unfog effect a separate flag?
3848                 fog = FogPoint_World(origin);
3849
3850         R_Mesh_Matrix(&identitymatrix);
3851         GL_BlendFunc(blendfunc1, blendfunc2);
3852
3853         if(v_flipped_state)
3854         {
3855                 scalex1 = -scalex1;
3856                 scalex2 = -scalex2;
3857                 GL_CullFace(r_view.cullface_front);
3858         }
3859         else
3860                 GL_CullFace(r_view.cullface_back);
3861
3862         GL_DepthMask(false);
3863         GL_DepthRange(0, depthshort ? 0.0625 : 1);
3864         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
3865         GL_DepthTest(!depthdisable);
3866
3867         vertex3f[ 0] = origin[0] + left[0] * scalex2 + up[0] * scaley1;
3868         vertex3f[ 1] = origin[1] + left[1] * scalex2 + up[1] * scaley1;
3869         vertex3f[ 2] = origin[2] + left[2] * scalex2 + up[2] * scaley1;
3870         vertex3f[ 3] = origin[0] + left[0] * scalex2 + up[0] * scaley2;
3871         vertex3f[ 4] = origin[1] + left[1] * scalex2 + up[1] * scaley2;
3872         vertex3f[ 5] = origin[2] + left[2] * scalex2 + up[2] * scaley2;
3873         vertex3f[ 6] = origin[0] + left[0] * scalex1 + up[0] * scaley2;
3874         vertex3f[ 7] = origin[1] + left[1] * scalex1 + up[1] * scaley2;
3875         vertex3f[ 8] = origin[2] + left[2] * scalex1 + up[2] * scaley2;
3876         vertex3f[ 9] = origin[0] + left[0] * scalex1 + up[0] * scaley1;
3877         vertex3f[10] = origin[1] + left[1] * scalex1 + up[1] * scaley1;
3878         vertex3f[11] = origin[2] + left[2] * scalex1 + up[2] * scaley1;
3879
3880         R_Mesh_VertexPointer(vertex3f, 0, 0);
3881         R_Mesh_ColorPointer(NULL, 0, 0);
3882         R_Mesh_ResetTextureState();
3883         R_Mesh_TexBind(0, R_GetTexture(texture));
3884         R_Mesh_TexCoordPointer(0, 2, spritetexcoord2f, 0, 0);
3885         // FIXME: fixed function path can't properly handle r_view.colorscale > 1
3886         GL_Color(cr * fog * r_view.colorscale, cg * fog * r_view.colorscale, cb * fog * r_view.colorscale, ca);
3887         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3888
3889         if (blendfunc2 == GL_ONE_MINUS_SRC_ALPHA)
3890         {
3891                 R_Mesh_TexBind(0, R_GetTexture(fogtexture));
3892                 GL_BlendFunc(blendfunc1, GL_ONE);
3893                 fog = 1 - fog;
3894                 GL_Color(r_refdef.fogcolor[0] * fog, r_refdef.fogcolor[1] * fog, r_refdef.fogcolor[2] * fog, ca);
3895                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3896         }
3897 }
3898
3899 int R_Mesh_AddVertex(rmesh_t *mesh, float x, float y, float z)
3900 {
3901         int i;
3902         float *vertex3f;
3903         float v[3];
3904         VectorSet(v, x, y, z);
3905         for (i = 0, vertex3f = mesh->vertex3f;i < mesh->numvertices;i++, vertex3f += 3)
3906                 if (VectorDistance2(v, vertex3f) < mesh->epsilon2)
3907                         break;
3908         if (i == mesh->numvertices)
3909         {
3910                 if (mesh->numvertices < mesh->maxvertices)
3911                 {
3912                         VectorCopy(v, vertex3f);
3913                         mesh->numvertices++;
3914                 }
3915                 return mesh->numvertices;
3916         }
3917         else
3918                 return i;
3919 }
3920
3921 void R_Mesh_AddPolygon3f(rmesh_t *mesh, int numvertices, float *vertex3f)
3922 {
3923         int i;
3924         int *e, element[3];
3925         element[0] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);vertex3f += 3;
3926         element[1] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);vertex3f += 3;
3927         e = mesh->element3i + mesh->numtriangles * 3;
3928         for (i = 0;i < numvertices - 2;i++, vertex3f += 3)
3929         {
3930                 element[2] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);
3931                 if (mesh->numtriangles < mesh->maxtriangles)
3932                 {
3933                         *e++ = element[0];
3934                         *e++ = element[1];
3935                         *e++ = element[2];
3936                         mesh->numtriangles++;
3937                 }
3938                 element[1] = element[2];
3939         }
3940 }
3941
3942 void R_Mesh_AddPolygon3d(rmesh_t *mesh, int numvertices, double *vertex3d)
3943 {
3944         int i;
3945         int *e, element[3];
3946         element[0] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);vertex3d += 3;
3947         element[1] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);vertex3d += 3;
3948         e = mesh->element3i + mesh->numtriangles * 3;
3949         for (i = 0;i < numvertices - 2;i++, vertex3d += 3)
3950         {
3951                 element[2] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);
3952                 if (mesh->numtriangles < mesh->maxtriangles)
3953                 {
3954                         *e++ = element[0];
3955                         *e++ = element[1];
3956                         *e++ = element[2];
3957                         mesh->numtriangles++;
3958                 }
3959                 element[1] = element[2];
3960         }
3961 }
3962
3963 #define R_MESH_PLANE_DIST_EPSILON (1.0 / 32.0)
3964 void R_Mesh_AddBrushMeshFromPlanes(rmesh_t *mesh, int numplanes, mplane_t *planes)
3965 {
3966         int planenum, planenum2;
3967         int w;
3968         int tempnumpoints;
3969         mplane_t *plane, *plane2;
3970         double maxdist;
3971         double temppoints[2][256*3];
3972         // figure out how large a bounding box we need to properly compute this brush
3973         maxdist = 0;
3974         for (w = 0;w < numplanes;w++)
3975                 maxdist = max(maxdist, planes[w].dist);
3976         // now make it large enough to enclose the entire brush, and round it off to a reasonable multiple of 1024
3977         maxdist = floor(maxdist * (4.0 / 1024.0) + 1) * 1024.0;
3978         for (planenum = 0, plane = planes;planenum < numplanes;planenum++, plane++)
3979         {
3980                 w = 0;
3981                 tempnumpoints = 4;
3982                 PolygonD_QuadForPlane(temppoints[w], plane->normal[0], plane->normal[1], plane->normal[2], plane->dist, maxdist);
3983                 for (planenum2 = 0, plane2 = planes;planenum2 < numplanes && tempnumpoints >= 3;planenum2++, plane2++)
3984                 {
3985                         if (planenum2 == planenum)
3986                                 continue;
3987                         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);
3988                         w = !w;
3989                 }
3990                 if (tempnumpoints < 3)
3991                         continue;
3992                 // generate elements forming a triangle fan for this polygon
3993                 R_Mesh_AddPolygon3d(mesh, tempnumpoints, temppoints[w]);
3994         }
3995 }
3996
3997 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)
3998 {
3999         texturelayer_t *layer;
4000         layer = t->currentlayers + t->currentnumlayers++;
4001         layer->type = type;
4002         layer->depthmask = depthmask;
4003         layer->blendfunc1 = blendfunc1;
4004         layer->blendfunc2 = blendfunc2;
4005         layer->texture = texture;
4006         layer->texmatrix = *matrix;
4007         layer->color[0] = r * r_view.colorscale;
4008         layer->color[1] = g * r_view.colorscale;
4009         layer->color[2] = b * r_view.colorscale;
4010         layer->color[3] = a;
4011 }
4012
4013 static float R_EvaluateQ3WaveFunc(q3wavefunc_t func, const float *parms)
4014 {
4015         double index, f;
4016         index = parms[2] + r_refdef.time * parms[3];
4017         index -= floor(index);
4018         switch (func)
4019         {
4020         default:
4021         case Q3WAVEFUNC_NONE:
4022         case Q3WAVEFUNC_NOISE:
4023         case Q3WAVEFUNC_COUNT:
4024                 f = 0;
4025                 break;
4026         case Q3WAVEFUNC_SIN: f = sin(index * M_PI * 2);break;
4027         case Q3WAVEFUNC_SQUARE: f = index < 0.5 ? 1 : -1;break;
4028         case Q3WAVEFUNC_SAWTOOTH: f = index;break;
4029         case Q3WAVEFUNC_INVERSESAWTOOTH: f = 1 - index;break;
4030         case Q3WAVEFUNC_TRIANGLE:
4031                 index *= 4;
4032                 f = index - floor(index);
4033                 if (index < 1)
4034                         f = f;
4035                 else if (index < 2)
4036                         f = 1 - f;
4037                 else if (index < 3)
4038                         f = -f;
4039                 else
4040                         f = -(1 - f);
4041                 break;
4042         }
4043         return (float)(parms[0] + parms[1] * f);
4044 }
4045
4046 void R_UpdateTextureInfo(const entity_render_t *ent, texture_t *t)
4047 {
4048         int i;
4049         model_t *model = ent->model;
4050         float f;
4051         float tcmat[12];
4052         q3shaderinfo_layer_tcmod_t *tcmod;
4053
4054         // switch to an alternate material if this is a q1bsp animated material
4055         {
4056                 texture_t *texture = t;
4057                 int s = ent->skinnum;
4058                 if ((unsigned int)s >= (unsigned int)model->numskins)
4059                         s = 0;
4060                 if (model->skinscenes)
4061                 {
4062                         if (model->skinscenes[s].framecount > 1)
4063                                 s = model->skinscenes[s].firstframe + (unsigned int) (r_refdef.time * model->skinscenes[s].framerate) % model->skinscenes[s].framecount;
4064                         else
4065                                 s = model->skinscenes[s].firstframe;
4066                 }
4067                 if (s > 0)
4068                         t = t + s * model->num_surfaces;
4069                 if (t->animated)
4070                 {
4071                         // use an alternate animation if the entity's frame is not 0,
4072                         // and only if the texture has an alternate animation
4073                         if (ent->frame2 != 0 && t->anim_total[1])
4074                                 t = t->anim_frames[1][(t->anim_total[1] >= 2) ? ((int)(r_refdef.time * 5.0f) % t->anim_total[1]) : 0];
4075                         else
4076                                 t = t->anim_frames[0][(t->anim_total[0] >= 2) ? ((int)(r_refdef.time * 5.0f) % t->anim_total[0]) : 0];
4077                 }
4078                 texture->currentframe = t;
4079         }
4080
4081         // update currentskinframe to be a qw skin or animation frame
4082         if ((i = ent->entitynumber - 1) >= 0 && i < cl.maxclients)
4083         {
4084                 if (strcmp(r_qwskincache[i], cl.scores[i].qw_skin))
4085                 {
4086                         strlcpy(r_qwskincache[i], cl.scores[i].qw_skin, sizeof(r_qwskincache[i]));
4087                         Con_DPrintf("loading skins/%s\n", r_qwskincache[i]);
4088                         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);
4089                 }
4090                 t->currentskinframe = r_qwskincache_skinframe[i];
4091                 if (t->currentskinframe == NULL)
4092                         t->currentskinframe = t->skinframes[(int)(t->skinframerate * (cl.time - ent->frame2time)) % t->numskinframes];
4093         }
4094         else if (t->numskinframes >= 2)
4095                 t->currentskinframe = t->skinframes[(int)(t->skinframerate * (cl.time - ent->frame2time)) % t->numskinframes];
4096         if (t->backgroundnumskinframes >= 2)
4097                 t->backgroundcurrentskinframe = t->backgroundskinframes[(int)(t->backgroundskinframerate * (cl.time - ent->frame2time)) % t->backgroundnumskinframes];
4098
4099         t->currentmaterialflags = t->basematerialflags;
4100         t->currentalpha = ent->alpha;
4101         if (t->basematerialflags & MATERIALFLAG_WATERALPHA && (model->brush.supportwateralpha || r_novis.integer))
4102         {
4103                 t->currentalpha *= r_wateralpha.value;
4104                 /*
4105                  * FIXME what is this supposed to do?
4106                 // if rendering refraction/reflection, disable transparency
4107                 if (r_waterstate.enabled && (t->currentalpha < 1 || (t->currentmaterialflags & MATERIALFLAG_ALPHA)))
4108                         t->currentmaterialflags |= MATERIALFLAG_WATERSHADER;
4109                 */
4110         }
4111         if(!r_waterstate.enabled)
4112                 t->currentmaterialflags &= ~(MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION);
4113         if (!(ent->flags & RENDER_LIGHT))
4114                 t->currentmaterialflags |= MATERIALFLAG_FULLBRIGHT;
4115         else if (rsurface.modeltexcoordlightmap2f == NULL)
4116         {
4117                 // pick a model lighting mode
4118                 if (VectorLength2(ent->modellight_diffuse) >= (1.0f / 256.0f))
4119                         t->currentmaterialflags |= MATERIALFLAG_MODELLIGHT | MATERIALFLAG_MODELLIGHT_DIRECTIONAL;
4120                 else
4121                         t->currentmaterialflags |= MATERIALFLAG_MODELLIGHT;
4122         }
4123         if (ent->effects & EF_ADDITIVE)
4124                 t->currentmaterialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4125         else if (t->currentalpha < 1)
4126                 t->currentmaterialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4127         if (ent->effects & EF_DOUBLESIDED)
4128                 t->currentmaterialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
4129         if (ent->effects & EF_NODEPTHTEST)
4130                 t->currentmaterialflags |= MATERIALFLAG_SHORTDEPTHRANGE;
4131         if (ent->flags & RENDER_VIEWMODEL)
4132                 t->currentmaterialflags |= MATERIALFLAG_SHORTDEPTHRANGE;
4133         if (t->backgroundnumskinframes && !(t->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED))
4134                 t->currentmaterialflags |= MATERIALFLAG_VERTEXTEXTUREBLEND;
4135
4136         // make sure that the waterscroll matrix is used on water surfaces when
4137         // there is no tcmod
4138         if (t->currentmaterialflags & MATERIALFLAG_WATER && r_waterscroll.value != 0)
4139                 t->currenttexmatrix = r_waterscrollmatrix;
4140
4141         for (i = 0, tcmod = t->tcmods;i < Q3MAXTCMODS && tcmod->tcmod;i++, tcmod++)
4142         {
4143                 matrix4x4_t matrix;
4144                 switch(tcmod->tcmod)
4145                 {
4146                 case Q3TCMOD_COUNT:
4147                 case Q3TCMOD_NONE:
4148                         if (t->currentmaterialflags & MATERIALFLAG_WATER && r_waterscroll.value != 0)
4149                                 matrix = r_waterscrollmatrix;
4150                         else
4151                                 matrix = identitymatrix;
4152                         break;
4153                 case Q3TCMOD_ENTITYTRANSLATE:
4154                         // this is used in Q3 to allow the gamecode to control texcoord
4155                         // scrolling on the entity, which is not supported in darkplaces yet.
4156                         Matrix4x4_CreateTranslate(&matrix, 0, 0, 0);
4157                         break;
4158                 case Q3TCMOD_ROTATE:
4159                         Matrix4x4_CreateTranslate(&matrix, 0.5, 0.5, 0);
4160                         Matrix4x4_ConcatRotate(&matrix, tcmod->parms[0] * r_refdef.time, 0, 0, 1);
4161                         Matrix4x4_ConcatTranslate(&matrix, -0.5, -0.5, 0);
4162                         break;
4163                 case Q3TCMOD_SCALE:
4164                         Matrix4x4_CreateScale3(&matrix, tcmod->parms[0], tcmod->parms[1], 1);
4165                         break;
4166                 case Q3TCMOD_SCROLL:
4167                         Matrix4x4_CreateTranslate(&matrix, tcmod->parms[0] * r_refdef.time, tcmod->parms[1] * r_refdef.time, 0);
4168                         break;
4169                 case Q3TCMOD_STRETCH:
4170                         f = 1.0f / R_EvaluateQ3WaveFunc(tcmod->wavefunc, tcmod->waveparms);
4171                         Matrix4x4_CreateFromQuakeEntity(&matrix, 0.5f * (1 - f), 0.5 * (1 - f), 0, 0, 0, 0, f);
4172                         break;
4173                 case Q3TCMOD_TRANSFORM:
4174                         VectorSet(tcmat +  0, tcmod->parms[0], tcmod->parms[1], 0);
4175                         VectorSet(tcmat +  3, tcmod->parms[2], tcmod->parms[3], 0);
4176                         VectorSet(tcmat +  6, 0                   , 0                , 1);
4177                         VectorSet(tcmat +  9, tcmod->parms[4], tcmod->parms[5], 0);
4178                         Matrix4x4_FromArray12FloatGL(&matrix, tcmat);
4179                         break;
4180                 case Q3TCMOD_TURBULENT:
4181                         // this is handled in the RSurf_PrepareVertices function
4182                         matrix = identitymatrix;
4183                         break;
4184                 }
4185                 // either replace or concatenate the transformation
4186                 if (i < 1)
4187                         t->currenttexmatrix = matrix;
4188                 else
4189                 {
4190                         matrix4x4_t temp = t->currenttexmatrix;
4191                         Matrix4x4_Concat(&t->currenttexmatrix, &matrix, &temp);
4192                 }
4193         }
4194
4195         t->colormapping = VectorLength2(ent->colormap_pantscolor) + VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f);
4196         t->basetexture = (!t->colormapping && t->currentskinframe->merged) ? t->currentskinframe->merged : t->currentskinframe->base;
4197         t->glosstexture = r_texture_black;
4198         t->backgroundbasetexture = t->backgroundnumskinframes ? ((!t->colormapping && t->backgroundcurrentskinframe->merged) ? t->backgroundcurrentskinframe->merged : t->backgroundcurrentskinframe->base) : r_texture_white;
4199         t->backgroundglosstexture = r_texture_black;
4200         t->specularpower = r_shadow_glossexponent.value;
4201         // TODO: store reference values for these in the texture?
4202         t->specularscale = 0;
4203         if (r_shadow_gloss.integer > 0)
4204         {
4205                 if (t->currentskinframe->gloss || (t->backgroundcurrentskinframe && t->backgroundcurrentskinframe->gloss))
4206                 {
4207                         if (r_shadow_glossintensity.value > 0)
4208                         {
4209                                 t->glosstexture = t->currentskinframe->gloss ? t->currentskinframe->gloss : r_texture_white;
4210                                 t->backgroundglosstexture = (t->backgroundcurrentskinframe && t->backgroundcurrentskinframe->gloss) ? t->backgroundcurrentskinframe->gloss : r_texture_white;
4211                                 t->specularscale = r_shadow_glossintensity.value;
4212                         }
4213                 }
4214                 else if (r_shadow_gloss.integer >= 2 && r_shadow_gloss2intensity.value > 0)
4215                 {
4216                         t->glosstexture = r_texture_white;
4217                         t->backgroundglosstexture = r_texture_white;
4218                         t->specularscale = r_shadow_gloss2intensity.value;
4219                 }
4220         }
4221
4222         // lightmaps mode looks bad with dlights using actual texturing, so turn
4223         // off the colormap and glossmap, but leave the normalmap on as it still
4224         // accurately represents the shading involved
4225         if (gl_lightmaps.integer && !(t->currentmaterialflags & MATERIALFLAG_BLENDED))
4226         {
4227                 t->basetexture = r_texture_white;
4228                 t->specularscale = 0;
4229         }
4230
4231         Vector4Set(t->lightmapcolor, ent->colormod[0], ent->colormod[1], ent->colormod[2], t->currentalpha);
4232         VectorClear(t->dlightcolor);
4233         t->currentnumlayers = 0;
4234         if (!(t->currentmaterialflags & MATERIALFLAG_NODRAW))
4235         {
4236                 if (!(t->currentmaterialflags & MATERIALFLAG_SKY))
4237                 {
4238                         int blendfunc1, blendfunc2, depthmask;
4239                         if (t->currentmaterialflags & MATERIALFLAG_ADD)
4240                         {
4241                                 blendfunc1 = GL_SRC_ALPHA;
4242                                 blendfunc2 = GL_ONE;
4243                         }
4244                         else if (t->currentmaterialflags & MATERIALFLAG_ALPHA)
4245                         {
4246                                 blendfunc1 = GL_SRC_ALPHA;
4247                                 blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
4248                         }
4249                         else if (t->currentmaterialflags & MATERIALFLAG_CUSTOMBLEND)
4250                         {
4251                                 blendfunc1 = t->customblendfunc[0];
4252                                 blendfunc2 = t->customblendfunc[1];
4253                         }
4254                         else
4255                         {
4256                                 blendfunc1 = GL_ONE;
4257                                 blendfunc2 = GL_ZERO;
4258                         }
4259                         depthmask = !(t->currentmaterialflags & MATERIALFLAG_BLENDED);
4260                         if (t->currentmaterialflags & (MATERIALFLAG_WATER | MATERIALFLAG_WALL))
4261                         {
4262                                 rtexture_t *currentbasetexture;
4263                                 int layerflags = 0;
4264                                 if (r_refdef.fogenabled && (t->currentmaterialflags & MATERIALFLAG_BLENDED))
4265                                         layerflags |= TEXTURELAYERFLAG_FOGDARKEN;
4266                                 currentbasetexture = (VectorLength2(ent->colormap_pantscolor) + VectorLength2(ent->colormap_shirtcolor) < (1.0f / 1048576.0f) && t->currentskinframe->merged) ? t->currentskinframe->merged : t->currentskinframe->base;
4267                                 if (t->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
4268                                 {
4269                                         // fullbright is not affected by r_refdef.lightmapintensity
4270                                         R_Texture_AddLayer(t, depthmask, blendfunc1, blendfunc2, TEXTURELAYERTYPE_TEXTURE, currentbasetexture, &t->currenttexmatrix, t->lightmapcolor[0], t->lightmapcolor[1], t->lightmapcolor[2], t->lightmapcolor[3]);
4271                                         if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4272                                                 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]);
4273                                         if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4274                                                 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]);
4275                                 }
4276                                 else
4277                                 {
4278                                         vec3_t ambientcolor;
4279                                         float colorscale;
4280                                         // set the color tint used for lights affecting this surface
4281                                         VectorSet(t->dlightcolor, ent->colormod[0] * t->lightmapcolor[3], ent->colormod[1] * t->lightmapcolor[3], ent->colormod[2] * t->lightmapcolor[3]);
4282                                         colorscale = 2;
4283                                         // q3bsp has no lightmap updates, so the lightstylevalue that
4284                                         // would normally be baked into the lightmap must be
4285                                         // applied to the color
4286                                         // FIXME: r_glsl 1 rendering doesn't support overbright lightstyles with this (the default light style is not overbright)
4287                                         if (ent->model->type == mod_brushq3)
4288                                                 colorscale *= r_refdef.rtlightstylevalue[0];
4289                                         colorscale *= r_refdef.lightmapintensity;
4290                                         VectorScale(t->lightmapcolor, r_ambient.value * (1.0f / 64.0f), ambientcolor);
4291                                         VectorScale(t->lightmapcolor, colorscale, t->lightmapcolor);
4292                                         // basic lit geometry
4293                                         R_Texture_AddLayer(t, depthmask, blendfunc1, blendfunc2, TEXTURELAYERTYPE_LITTEXTURE, currentbasetexture, &t->currenttexmatrix, t->lightmapcolor[0], t->lightmapcolor[1], t->lightmapcolor[2], t->lightmapcolor[3]);
4294                                         // add pants/shirt if needed
4295                                         if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4296                                                 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]);
4297                                         if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4298                                                 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]);
4299                                         // now add ambient passes if needed
4300                                         if (VectorLength2(ambientcolor) >= (1.0f/1048576.0f))
4301                                         {
4302                                                 R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_TEXTURE, currentbasetexture, &t->currenttexmatrix, ambientcolor[0], ambientcolor[1], ambientcolor[2], t->lightmapcolor[3]);
4303                                                 if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4304                                                         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]);
4305                                                 if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4306                                                         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]);
4307                                         }
4308                                 }
4309                                 if (t->currentskinframe->glow != NULL)
4310                                         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]);
4311                                 if (r_refdef.fogenabled && !(t->currentmaterialflags & MATERIALFLAG_ADD))
4312                                 {
4313                                         // if this is opaque use alpha blend which will darken the earlier
4314                                         // passes cheaply.
4315                                         //
4316                                         // if this is an alpha blended material, all the earlier passes
4317                                         // were darkened by fog already, so we only need to add the fog
4318                                         // color ontop through the fog mask texture
4319                                         //
4320                                         // if this is an additive blended material, all the earlier passes
4321                                         // were darkened by fog already, and we should not add fog color
4322                                         // (because the background was not darkened, there is no fog color
4323                                         // that was lost behind it).
4324                                         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_view.colorscale, r_refdef.fogcolor[1] / r_view.colorscale, r_refdef.fogcolor[2] / r_view.colorscale, t->lightmapcolor[3]);
4325                                 }
4326                         }
4327                 }
4328         }
4329 }
4330
4331 void R_UpdateAllTextureInfo(entity_render_t *ent)
4332 {
4333         int i;
4334         if (ent->model)
4335                 for (i = 0;i < ent->model->num_texturesperskin;i++)
4336                         R_UpdateTextureInfo(ent, ent->model->data_textures + i);
4337 }
4338
4339 rsurfacestate_t rsurface;
4340
4341 void R_Mesh_ResizeArrays(int newvertices)
4342 {
4343         float *base;
4344         if (rsurface.array_size >= newvertices)
4345                 return;
4346         if (rsurface.array_modelvertex3f)
4347                 Mem_Free(rsurface.array_modelvertex3f);
4348         rsurface.array_size = (newvertices + 1023) & ~1023;
4349         base = (float *)Mem_Alloc(r_main_mempool, rsurface.array_size * sizeof(float[33]));
4350         rsurface.array_modelvertex3f     = base + rsurface.array_size * 0;
4351         rsurface.array_modelsvector3f    = base + rsurface.array_size * 3;
4352         rsurface.array_modeltvector3f    = base + rsurface.array_size * 6;
4353         rsurface.array_modelnormal3f     = base + rsurface.array_size * 9;
4354         rsurface.array_deformedvertex3f  = base + rsurface.array_size * 12;
4355         rsurface.array_deformedsvector3f = base + rsurface.array_size * 15;
4356         rsurface.array_deformedtvector3f = base + rsurface.array_size * 18;
4357         rsurface.array_deformednormal3f  = base + rsurface.array_size * 21;
4358         rsurface.array_texcoord3f        = base + rsurface.array_size * 24;
4359         rsurface.array_color4f           = base + rsurface.array_size * 27;
4360         rsurface.array_generatedtexcoordtexture2f = base + rsurface.array_size * 31;
4361 }
4362
4363 void RSurf_CleanUp(void)
4364 {
4365         CHECKGLERROR
4366         if (rsurface.mode == RSURFMODE_GLSL)
4367         {
4368                 qglUseProgramObjectARB(0);CHECKGLERROR
4369         }
4370         GL_AlphaTest(false);
4371         rsurface.mode = RSURFMODE_NONE;
4372         rsurface.uselightmaptexture = false;
4373         rsurface.texture = NULL;
4374 }
4375
4376 void RSurf_ActiveWorldEntity(void)
4377 {
4378         model_t *model = r_refdef.worldmodel;
4379         RSurf_CleanUp();
4380         if (rsurface.array_size < model->surfmesh.num_vertices)
4381                 R_Mesh_ResizeArrays(model->surfmesh.num_vertices);
4382         rsurface.matrix = identitymatrix;
4383         rsurface.inversematrix = identitymatrix;
4384         R_Mesh_Matrix(&identitymatrix);
4385         VectorCopy(r_view.origin, rsurface.modelorg);
4386         VectorSet(rsurface.modellight_ambient, 0, 0, 0);
4387         VectorSet(rsurface.modellight_diffuse, 0, 0, 0);
4388         VectorSet(rsurface.modellight_lightdir, 0, 0, 1);
4389         VectorSet(rsurface.colormap_pantscolor, 0, 0, 0);
4390         VectorSet(rsurface.colormap_shirtcolor, 0, 0, 0);
4391         rsurface.frameblend[0].frame = 0;
4392         rsurface.frameblend[0].lerp = 1;
4393         rsurface.frameblend[1].frame = 0;
4394         rsurface.frameblend[1].lerp = 0;
4395         rsurface.frameblend[2].frame = 0;
4396         rsurface.frameblend[2].lerp = 0;
4397         rsurface.frameblend[3].frame = 0;
4398         rsurface.frameblend[3].lerp = 0;
4399         rsurface.basepolygonfactor = r_refdef.polygonfactor;
4400         rsurface.basepolygonoffset = r_refdef.polygonoffset;
4401         rsurface.modelvertex3f  = model->surfmesh.data_vertex3f;
4402         rsurface.modelvertex3f_bufferobject = model->surfmesh.vbo;
4403         rsurface.modelvertex3f_bufferoffset = model->surfmesh.vbooffset_vertex3f;
4404         rsurface.modelsvector3f = model->surfmesh.data_svector3f;
4405         rsurface.modelsvector3f_bufferobject = model->surfmesh.vbo;
4406         rsurface.modelsvector3f_bufferoffset = model->surfmesh.vbooffset_svector3f;
4407         rsurface.modeltvector3f = model->surfmesh.data_tvector3f;
4408         rsurface.modeltvector3f_bufferobject = model->surfmesh.vbo;
4409         rsurface.modeltvector3f_bufferoffset = model->surfmesh.vbooffset_tvector3f;
4410         rsurface.modelnormal3f  = model->surfmesh.data_normal3f;
4411         rsurface.modelnormal3f_bufferobject = model->surfmesh.vbo;
4412         rsurface.modelnormal3f_bufferoffset = model->surfmesh.vbooffset_normal3f;
4413         rsurface.modellightmapcolor4f  = model->surfmesh.data_lightmapcolor4f;
4414         rsurface.modellightmapcolor4f_bufferobject = model->surfmesh.vbo;
4415         rsurface.modellightmapcolor4f_bufferoffset = model->surfmesh.vbooffset_lightmapcolor4f;
4416         rsurface.modeltexcoordtexture2f  = model->surfmesh.data_texcoordtexture2f;
4417         rsurface.modeltexcoordtexture2f_bufferobject = model->surfmesh.vbo;
4418         rsurface.modeltexcoordtexture2f_bufferoffset = model->surfmesh.vbooffset_texcoordtexture2f;
4419         rsurface.modeltexcoordlightmap2f  = model->surfmesh.data_texcoordlightmap2f;
4420         rsurface.modeltexcoordlightmap2f_bufferobject = model->surfmesh.vbo;
4421         rsurface.modeltexcoordlightmap2f_bufferoffset = model->surfmesh.vbooffset_texcoordlightmap2f;
4422         rsurface.modelelement3i = model->surfmesh.data_element3i;
4423         rsurface.modelelement3i_bufferobject = model->surfmesh.ebo;
4424         rsurface.modellightmapoffsets = model->surfmesh.data_lightmapoffsets;
4425         rsurface.modelnum_vertices = model->surfmesh.num_vertices;
4426         rsurface.modelnum_triangles = model->surfmesh.num_triangles;
4427         rsurface.modelsurfaces = model->data_surfaces;
4428         rsurface.generatedvertex = false;
4429         rsurface.vertex3f  = rsurface.modelvertex3f;
4430         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4431         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4432         rsurface.svector3f = rsurface.modelsvector3f;
4433         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4434         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4435         rsurface.tvector3f = rsurface.modeltvector3f;
4436         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4437         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4438         rsurface.normal3f  = rsurface.modelnormal3f;
4439         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4440         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4441         rsurface.texcoordtexture2f = rsurface.modeltexcoordtexture2f;
4442 }
4443
4444 void RSurf_ActiveModelEntity(const entity_render_t *ent, qboolean wantnormals, qboolean wanttangents)
4445 {
4446         model_t *model = ent->model;
4447         RSurf_CleanUp();
4448         if (rsurface.array_size < model->surfmesh.num_vertices)
4449                 R_Mesh_ResizeArrays(model->surfmesh.num_vertices);
4450         rsurface.matrix = ent->matrix;
4451         rsurface.inversematrix = ent->inversematrix;
4452         R_Mesh_Matrix(&rsurface.matrix);
4453         Matrix4x4_Transform(&rsurface.inversematrix, r_view.origin, rsurface.modelorg);
4454         rsurface.modellight_ambient[0] = ent->modellight_ambient[0] * ent->colormod[0];
4455         rsurface.modellight_ambient[1] = ent->modellight_ambient[1] * ent->colormod[1];
4456         rsurface.modellight_ambient[2] = ent->modellight_ambient[2] * ent->colormod[2];
4457         rsurface.modellight_diffuse[0] = ent->modellight_diffuse[0] * ent->colormod[0];
4458         rsurface.modellight_diffuse[1] = ent->modellight_diffuse[1] * ent->colormod[1];
4459         rsurface.modellight_diffuse[2] = ent->modellight_diffuse[2] * ent->colormod[2];
4460         VectorCopy(ent->modellight_diffuse, rsurface.modellight_diffuse);
4461         VectorCopy(ent->modellight_lightdir, rsurface.modellight_lightdir);
4462         VectorCopy(ent->colormap_pantscolor, rsurface.colormap_pantscolor);
4463         VectorCopy(ent->colormap_shirtcolor, rsurface.colormap_shirtcolor);
4464         rsurface.frameblend[0] = ent->frameblend[0];
4465         rsurface.frameblend[1] = ent->frameblend[1];
4466         rsurface.frameblend[2] = ent->frameblend[2];
4467         rsurface.frameblend[3] = ent->frameblend[3];
4468         rsurface.basepolygonfactor = r_refdef.polygonfactor;
4469         rsurface.basepolygonoffset = r_refdef.polygonoffset;
4470         if (ent->model->brush.submodel)
4471         {
4472                 rsurface.basepolygonfactor += r_polygonoffset_submodel_factor.value;
4473                 rsurface.basepolygonoffset += r_polygonoffset_submodel_offset.value;
4474         }
4475         if (model->surfmesh.isanimated && (rsurface.frameblend[0].lerp != 1 || rsurface.frameblend[0].frame != 0))
4476         {
4477                 if (wanttangents)
4478                 {
4479                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4480                         rsurface.modelsvector3f = rsurface.array_modelsvector3f;
4481                         rsurface.modeltvector3f = rsurface.array_modeltvector3f;
4482                         rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4483                         Mod_Alias_GetMesh_Vertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, rsurface.array_modelnormal3f, rsurface.array_modelsvector3f, rsurface.array_modeltvector3f);
4484                 }
4485                 else if (wantnormals)
4486                 {
4487                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4488                         rsurface.modelsvector3f = NULL;
4489                         rsurface.modeltvector3f = NULL;
4490                         rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4491                         Mod_Alias_GetMesh_Vertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, rsurface.array_modelnormal3f, NULL, NULL);
4492                 }
4493                 else
4494                 {
4495                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4496                         rsurface.modelsvector3f = NULL;
4497                         rsurface.modeltvector3f = NULL;
4498                         rsurface.modelnormal3f = NULL;
4499                         Mod_Alias_GetMesh_Vertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, NULL, NULL, NULL);
4500                 }
4501                 rsurface.modelvertex3f_bufferobject = 0;
4502                 rsurface.modelvertex3f_bufferoffset = 0;
4503                 rsurface.modelsvector3f_bufferobject = 0;
4504                 rsurface.modelsvector3f_bufferoffset = 0;
4505                 rsurface.modeltvector3f_bufferobject = 0;
4506                 rsurface.modeltvector3f_bufferoffset = 0;
4507                 rsurface.modelnormal3f_bufferobject = 0;
4508                 rsurface.modelnormal3f_bufferoffset = 0;
4509                 rsurface.generatedvertex = true;
4510         }
4511         else
4512         {
4513                 rsurface.modelvertex3f  = model->surfmesh.data_vertex3f;
4514                 rsurface.modelvertex3f_bufferobject = model->surfmesh.vbo;
4515                 rsurface.modelvertex3f_bufferoffset = model->surfmesh.vbooffset_vertex3f;
4516                 rsurface.modelsvector3f = model->surfmesh.data_svector3f;
4517                 rsurface.modelsvector3f_bufferobject = model->surfmesh.vbo;
4518                 rsurface.modelsvector3f_bufferoffset = model->surfmesh.vbooffset_svector3f;
4519                 rsurface.modeltvector3f = model->surfmesh.data_tvector3f;
4520                 rsurface.modeltvector3f_bufferobject = model->surfmesh.vbo;
4521                 rsurface.modeltvector3f_bufferoffset = model->surfmesh.vbooffset_tvector3f;
4522                 rsurface.modelnormal3f  = model->surfmesh.data_normal3f;
4523                 rsurface.modelnormal3f_bufferobject = model->surfmesh.vbo;
4524                 rsurface.modelnormal3f_bufferoffset = model->surfmesh.vbooffset_normal3f;
4525                 rsurface.generatedvertex = false;
4526         }
4527         rsurface.modellightmapcolor4f  = model->surfmesh.data_lightmapcolor4f;
4528         rsurface.modellightmapcolor4f_bufferobject = model->surfmesh.vbo;
4529         rsurface.modellightmapcolor4f_bufferoffset = model->surfmesh.vbooffset_lightmapcolor4f;
4530         rsurface.modeltexcoordtexture2f  = model->surfmesh.data_texcoordtexture2f;
4531         rsurface.modeltexcoordtexture2f_bufferobject = model->surfmesh.vbo;
4532         rsurface.modeltexcoordtexture2f_bufferoffset = model->surfmesh.vbooffset_texcoordtexture2f;
4533         rsurface.modeltexcoordlightmap2f  = model->surfmesh.data_texcoordlightmap2f;
4534         rsurface.modeltexcoordlightmap2f_bufferobject = model->surfmesh.vbo;
4535         rsurface.modeltexcoordlightmap2f_bufferoffset = model->surfmesh.vbooffset_texcoordlightmap2f;
4536         rsurface.modelelement3i = model->surfmesh.data_element3i;
4537         rsurface.modelelement3i_bufferobject = model->surfmesh.ebo;
4538         rsurface.modellightmapoffsets = model->surfmesh.data_lightmapoffsets;
4539         rsurface.modelnum_vertices = model->surfmesh.num_vertices;
4540         rsurface.modelnum_triangles = model->surfmesh.num_triangles;
4541         rsurface.modelsurfaces = model->data_surfaces;
4542         rsurface.vertex3f  = rsurface.modelvertex3f;
4543         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4544         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4545         rsurface.svector3f = rsurface.modelsvector3f;
4546         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4547         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4548         rsurface.tvector3f = rsurface.modeltvector3f;
4549         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4550         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4551         rsurface.normal3f  = rsurface.modelnormal3f;
4552         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4553         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4554         rsurface.texcoordtexture2f = rsurface.modeltexcoordtexture2f;
4555 }
4556
4557 static const int quadedges[6][2] = {{0, 1}, {0, 2}, {0, 3}, {1, 2}, {1, 3}, {2, 3}};
4558 void RSurf_PrepareVerticesForBatch(qboolean generatenormals, qboolean generatetangents, int texturenumsurfaces, msurface_t **texturesurfacelist)
4559 {
4560         int deformindex;
4561         int texturesurfaceindex;
4562         int i, j;
4563         float amplitude;
4564         float animpos;
4565         float scale;
4566         const float *v1, *in_tc;
4567         float *out_tc;
4568         float center[3], forward[3], right[3], up[3], v[3], newforward[3], newright[3], newup[3];
4569         float waveparms[4];
4570         q3shaderinfo_deform_t *deform;
4571         // 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
4572         if (rsurface.generatedvertex)
4573         {
4574                 if (rsurface.texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
4575                         generatenormals = true;
4576                 for (i = 0;i < Q3MAXDEFORMS;i++)
4577                 {
4578                         if (rsurface.texture->deforms[i].deform == Q3DEFORM_AUTOSPRITE)
4579                         {
4580                                 generatetangents = true;
4581                                 generatenormals = true;
4582                         }
4583                         if (rsurface.texture->deforms[i].deform != Q3DEFORM_NONE)
4584                                 generatenormals = true;
4585                 }
4586                 if (generatenormals && !rsurface.modelnormal3f)
4587                 {
4588                         rsurface.normal3f = rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4589                         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject = 0;
4590                         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset = 0;
4591                         Mod_BuildNormals(0, rsurface.modelnum_vertices, rsurface.modelnum_triangles, rsurface.modelvertex3f, rsurface.modelelement3i, rsurface.array_modelnormal3f, r_smoothnormals_areaweighting.integer);
4592                 }
4593                 if (generatetangents && !rsurface.modelsvector3f)
4594                 {
4595                         rsurface.svector3f = rsurface.modelsvector3f = rsurface.array_modelsvector3f;
4596                         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject = 0;
4597                         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset = 0;
4598                         rsurface.tvector3f = rsurface.modeltvector3f = rsurface.array_modeltvector3f;
4599                         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject = 0;
4600                         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset = 0;
4601                         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);
4602                 }
4603         }
4604         rsurface.vertex3f  = rsurface.modelvertex3f;
4605         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4606         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4607         rsurface.svector3f = rsurface.modelsvector3f;
4608         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4609         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4610         rsurface.tvector3f = rsurface.modeltvector3f;
4611         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4612         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4613         rsurface.normal3f  = rsurface.modelnormal3f;
4614         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4615         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4616         // if vertices are deformed (sprite flares and things in maps, possibly
4617         // water waves, bulges and other deformations), generate them into
4618         // rsurface.deform* arrays from whatever the rsurface.* arrays point to
4619         // (may be static model data or generated data for an animated model, or
4620         //  the previous deform pass)
4621         for (deformindex = 0, deform = rsurface.texture->deforms;deformindex < Q3MAXDEFORMS && deform->deform;deformindex++, deform++)
4622         {
4623                 switch (deform->deform)
4624                 {
4625                 default:
4626                 case Q3DEFORM_PROJECTIONSHADOW:
4627                 case Q3DEFORM_TEXT0:
4628                 case Q3DEFORM_TEXT1:
4629                 case Q3DEFORM_TEXT2:
4630                 case Q3DEFORM_TEXT3:
4631                 case Q3DEFORM_TEXT4:
4632                 case Q3DEFORM_TEXT5:
4633                 case Q3DEFORM_TEXT6:
4634                 case Q3DEFORM_TEXT7:
4635                 case Q3DEFORM_NONE:
4636                         break;
4637                 case Q3DEFORM_AUTOSPRITE:
4638                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_view.forward, newforward);
4639                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_view.right, newright);
4640                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_view.up, newup);
4641                         VectorNormalize(newforward);
4642                         VectorNormalize(newright);
4643                         VectorNormalize(newup);
4644                         // make deformed versions of only the model vertices used by the specified surfaces
4645                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4646                         {
4647                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4648                                 // a single autosprite surface can contain multiple sprites...
4649                                 for (j = 0;j < surface->num_vertices - 3;j += 4)
4650                                 {
4651                                         VectorClear(center);
4652                                         for (i = 0;i < 4;i++)
4653                                                 VectorAdd(center, (rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i) * 3, center);
4654                                         VectorScale(center, 0.25f, center);
4655                                         VectorCopy((rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, forward);
4656                                         VectorCopy((rsurface.svector3f + 3 * surface->num_firstvertex) + j*3, right);
4657                                         VectorCopy((rsurface.tvector3f + 3 * surface->num_firstvertex) + j*3, up);
4658                                         for (i = 0;i < 4;i++)
4659                                         {
4660                                                 VectorSubtract((rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i)*3, center, v);
4661                                                 VectorMAMAMAM(1, center, DotProduct(forward, v), newforward, DotProduct(right, v), newright, DotProduct(up, v), newup, rsurface.array_deformedvertex3f + (surface->num_firstvertex+i+j) * 3);
4662                                         }
4663                                 }
4664                                 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);
4665                                 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);
4666                         }
4667                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4668                         rsurface.vertex3f_bufferobject = 0;
4669                         rsurface.vertex3f_bufferoffset = 0;
4670                         rsurface.svector3f = rsurface.array_deformedsvector3f;
4671                         rsurface.svector3f_bufferobject = 0;
4672                         rsurface.svector3f_bufferoffset = 0;
4673                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
4674                         rsurface.tvector3f_bufferobject = 0;
4675                         rsurface.tvector3f_bufferoffset = 0;
4676                         rsurface.normal3f = rsurface.array_deformednormal3f;
4677                         rsurface.normal3f_bufferobject = 0;
4678                         rsurface.normal3f_bufferoffset = 0;
4679                         break;
4680                 case Q3DEFORM_AUTOSPRITE2:
4681                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_view.forward, newforward);
4682                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_view.right, newright);
4683                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_view.up, newup);
4684                         VectorNormalize(newforward);
4685                         VectorNormalize(newright);
4686                         VectorNormalize(newup);
4687                         // make deformed versions of only the model vertices used by the specified surfaces
4688                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4689                         {
4690                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4691                                 const float *v1, *v2;
4692                                 vec3_t start, end;
4693                                 float f, l;
4694                                 struct
4695                                 {
4696                                         float length2;
4697                                         const float *v1;
4698                                         const float *v2;
4699                                 }
4700                                 shortest[2];
4701                                 memset(shortest, 0, sizeof(shortest));
4702                                 // a single autosprite surface can contain multiple sprites...
4703                                 for (j = 0;j < surface->num_vertices - 3;j += 4)
4704                                 {
4705                                         VectorClear(center);
4706                                         for (i = 0;i < 4;i++)
4707                                                 VectorAdd(center, (rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i) * 3, center);
4708                                         VectorScale(center, 0.25f, center);
4709                                         // find the two shortest edges, then use them to define the
4710                                         // axis vectors for rotating around the central axis
4711                                         for (i = 0;i < 6;i++)
4712                                         {
4713                                                 v1 = rsurface.vertex3f + 3 * (surface->num_firstvertex + quadedges[i][0]);
4714                                                 v2 = rsurface.vertex3f + 3 * (surface->num_firstvertex + quadedges[i][1]);
4715 #if 0
4716                                                 Debug_PolygonBegin(NULL, 0, false, 0);
4717                                                 Debug_PolygonVertex(v1[0], v1[1], v1[2], 0, 0, 1, 0, 0, 1);
4718                                                 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);
4719                                                 Debug_PolygonVertex(v2[0], v2[1], v2[2], 0, 0, 1, 0, 0, 1);
4720                                                 Debug_PolygonEnd();
4721 #endif
4722                                                 l = VectorDistance2(v1, v2);
4723                                                 // this length bias tries to make sense of square polygons, assuming they are meant to be upright
4724                                                 if (v1[2] != v2[2])
4725                                                         l += (1.0f / 1024.0f);
4726                                                 if (shortest[0].length2 > l || i == 0)
4727                                                 {
4728                                                         shortest[1] = shortest[0];
4729                                                         shortest[0].length2 = l;
4730                                                         shortest[0].v1 = v1;
4731                                                         shortest[0].v2 = v2;
4732                                                 }
4733                                                 else if (shortest[1].length2 > l || i == 1)
4734                                                 {
4735                                                         shortest[1].length2 = l;
4736                                                         shortest[1].v1 = v1;
4737                                                         shortest[1].v2 = v2;
4738                                                 }
4739                                         }
4740                                         VectorLerp(shortest[0].v1, 0.5f, shortest[0].v2, start);
4741                                         VectorLerp(shortest[1].v1, 0.5f, shortest[1].v2, end);
4742 #if 0
4743                                         Debug_PolygonBegin(NULL, 0, false, 0);
4744                                         Debug_PolygonVertex(start[0], start[1], start[2], 0, 0, 1, 1, 0, 1);
4745                                         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);
4746                                         Debug_PolygonVertex(end[0], end[1], end[2], 0, 0, 0, 1, 1, 1);
4747                                         Debug_PolygonEnd();
4748 #endif
4749                                         // this calculates the right vector from the shortest edge
4750                                         // and the up vector from the edge midpoints
4751                                         VectorSubtract(shortest[0].v1, shortest[0].v2, right);
4752                                         VectorNormalize(right);
4753                                         VectorSubtract(end, start, up);
4754                                         VectorNormalize(up);
4755                                         // calculate a forward vector to use instead of the original plane normal (this is how we get a new right vector)
4756                                         //VectorSubtract(rsurface.modelorg, center, forward);
4757                                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_view.forward, forward);
4758                                         VectorNegate(forward, forward);
4759                                         VectorReflect(forward, 0, up, forward);
4760                                         VectorNormalize(forward);
4761                                         CrossProduct(up, forward, newright);
4762                                         VectorNormalize(newright);
4763 #if 0
4764                                         Debug_PolygonBegin(NULL, 0, false, 0);
4765                                         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);
4766                                         Debug_PolygonVertex(center[0] + right[0] * 8, center[1] + right[1] * 8, center[2] + right[2] * 8, 0, 0, 0, 1, 0, 1);
4767                                         Debug_PolygonVertex(center[0] + up   [0] * 8, center[1] + up   [1] * 8, center[2] + up   [2] * 8, 0, 0, 0, 0, 1, 1);
4768                                         Debug_PolygonEnd();
4769 #endif
4770 #if 0
4771                                         Debug_PolygonBegin(NULL, 0, false, 0);
4772                                         Debug_PolygonVertex(center[0] + forward [0] * 8, center[1] + forward [1] * 8, center[2] + forward [2] * 8, 0, 0, 1, 0, 0, 1);
4773                                         Debug_PolygonVertex(center[0] + newright[0] * 8, center[1] + newright[1] * 8, center[2] + newright[2] * 8, 0, 0, 0, 1, 0, 1);
4774                                         Debug_PolygonVertex(center[0] + up      [0] * 8, center[1] + up      [1] * 8, center[2] + up      [2] * 8, 0, 0, 0, 0, 1, 1);
4775                                         Debug_PolygonEnd();
4776 #endif
4777                                         // rotate the quad around the up axis vector, this is made
4778                                         // especially easy by the fact we know the quad is flat,
4779                                         // so we only have to subtract the center position and
4780                                         // measure distance along the right vector, and then
4781                                         // multiply that by the newright vector and add back the
4782                                         // center position
4783                                         // we also need to subtract the old position to undo the
4784                                         // displacement from the center, which we do with a
4785                                         // DotProduct, the subtraction/addition of center is also
4786                                         // optimized into DotProducts here
4787                                         l = DotProduct(right, center);
4788                                         for (i = 0;i < 4;i++)
4789                                         {
4790                                                 v1 = rsurface.vertex3f + 3 * (surface->num_firstvertex + j + i);
4791                                                 f = DotProduct(right, v1) - l;
4792                                                 VectorMAMAM(1, v1, -f, right, f, newright, rsurface.array_deformedvertex3f + (surface->num_firstvertex+i+j) * 3);
4793                                         }
4794                                 }
4795                                 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);
4796                                 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);
4797                         }
4798                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4799                         rsurface.vertex3f_bufferobject = 0;
4800                         rsurface.vertex3f_bufferoffset = 0;
4801                         rsurface.svector3f = rsurface.array_deformedsvector3f;
4802                         rsurface.svector3f_bufferobject = 0;
4803                         rsurface.svector3f_bufferoffset = 0;
4804                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
4805                         rsurface.tvector3f_bufferobject = 0;
4806                         rsurface.tvector3f_bufferoffset = 0;
4807                         rsurface.normal3f = rsurface.array_deformednormal3f;
4808                         rsurface.normal3f_bufferobject = 0;
4809                         rsurface.normal3f_bufferoffset = 0;
4810                         break;
4811                 case Q3DEFORM_NORMAL:
4812                         // deform the normals to make reflections wavey
4813                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4814                         {
4815                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4816                                 for (j = 0;j < surface->num_vertices;j++)
4817                                 {
4818                                         float vertex[3];
4819                                         float *normal = (rsurface.array_deformednormal3f  + 3 * surface->num_firstvertex) + j*3;
4820                                         VectorScale((rsurface.vertex3f  + 3 * surface->num_firstvertex) + j*3, 0.98f, vertex);
4821                                         VectorCopy((rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, normal);
4822                                         normal[0] += deform->parms[0] * noise4f(      vertex[0], vertex[1], vertex[2], r_refdef.time * deform->parms[1]);
4823                                         normal[1] += deform->parms[0] * noise4f( 98 + vertex[0], vertex[1], vertex[2], r_refdef.time * deform->parms[1]);
4824                                         normal[2] += deform->parms[0] * noise4f(196 + vertex[0], vertex[1], vertex[2], r_refdef.time * deform->parms[1]);
4825                                         VectorNormalize(normal);
4826                                 }
4827                                 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);
4828                         }
4829                         rsurface.svector3f = rsurface.array_deformedsvector3f;
4830                         rsurface.svector3f_bufferobject = 0;
4831                         rsurface.svector3f_bufferoffset = 0;
4832                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
4833                         rsurface.tvector3f_bufferobject = 0;
4834                         rsurface.tvector3f_bufferoffset = 0;
4835                         rsurface.normal3f = rsurface.array_deformednormal3f;
4836                         rsurface.normal3f_bufferobject = 0;
4837                         rsurface.normal3f_bufferoffset = 0;
4838                         break;
4839                 case Q3DEFORM_WAVE:
4840                         // deform vertex array to make wavey water and flags and such
4841                         waveparms[0] = deform->waveparms[0];
4842                         waveparms[1] = deform->waveparms[1];
4843                         waveparms[2] = deform->waveparms[2];
4844                         waveparms[3] = deform->waveparms[3];
4845                         // this is how a divisor of vertex influence on deformation
4846                         animpos = deform->parms[0] ? 1.0f / deform->parms[0] : 100.0f;
4847                         scale = R_EvaluateQ3WaveFunc(deform->wavefunc, waveparms);
4848                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4849                         {
4850                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4851                                 for (j = 0;j < surface->num_vertices;j++)
4852                                 {
4853                                         float *vertex = (rsurface.array_deformedvertex3f  + 3 * surface->num_firstvertex) + j*3;
4854                                         VectorCopy((rsurface.vertex3f  + 3 * surface->num_firstvertex) + j*3, vertex);
4855                                         // if the wavefunc depends on time, evaluate it per-vertex
4856                                         if (waveparms[3])
4857                                         {
4858                                                 waveparms[2] = deform->waveparms[2] + (vertex[0] + vertex[1] + vertex[2]) * animpos;
4859                                                 scale = R_EvaluateQ3WaveFunc(deform->wavefunc, waveparms);
4860                                         }
4861                                         VectorMA(vertex, scale, (rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, vertex);
4862                                 }
4863                         }
4864                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4865                         rsurface.vertex3f_bufferobject = 0;
4866                         rsurface.vertex3f_bufferoffset = 0;
4867                         break;
4868                 case Q3DEFORM_BULGE:
4869                         // deform vertex array to make the surface have moving bulges
4870                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4871                         {
4872                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4873                                 for (j = 0;j < surface->num_vertices;j++)
4874                                 {
4875                                         scale = sin((rsurface.modeltexcoordtexture2f[2 * (surface->num_firstvertex + j)] * deform->parms[0] + r_refdef.time * deform->parms[2])) * deform->parms[1];
4876                                         VectorMA(rsurface.vertex3f + 3 * (surface->num_firstvertex + j), scale, rsurface.normal3f + 3 * (surface->num_firstvertex + j), rsurface.array_deformedvertex3f + 3 * (surface->num_firstvertex + j));
4877                                 }
4878                         }
4879                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4880                         rsurface.vertex3f_bufferobject = 0;
4881                         rsurface.vertex3f_bufferoffset = 0;
4882                         break;
4883                 case Q3DEFORM_MOVE:
4884                         // deform vertex array
4885                         scale = R_EvaluateQ3WaveFunc(deform->wavefunc, deform->waveparms);
4886                         VectorScale(deform->parms, scale, waveparms);
4887                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4888                         {
4889                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4890                                 for (j = 0;j < surface->num_vertices;j++)
4891                                         VectorAdd(rsurface.vertex3f + 3 * (surface->num_firstvertex + j), waveparms, rsurface.array_deformedvertex3f + 3 * (surface->num_firstvertex + j));
4892                         }
4893                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4894                         rsurface.vertex3f_bufferobject = 0;
4895                         rsurface.vertex3f_bufferoffset = 0;
4896                         break;
4897                 }
4898         }
4899         // generate texcoords based on the chosen texcoord source
4900         switch(rsurface.texture->tcgen.tcgen)
4901         {
4902         default:
4903         case Q3TCGEN_TEXTURE:
4904                 rsurface.texcoordtexture2f               = rsurface.modeltexcoordtexture2f;
4905                 rsurface.texcoordtexture2f_bufferobject  = rsurface.modeltexcoordtexture2f_bufferobject;
4906                 rsurface.texcoordtexture2f_bufferoffset  = rsurface.modeltexcoordtexture2f_bufferoffset;
4907                 break;
4908         case Q3TCGEN_LIGHTMAP:
4909                 rsurface.texcoordtexture2f               = rsurface.modeltexcoordlightmap2f;
4910                 rsurface.texcoordtexture2f_bufferobject  = rsurface.modeltexcoordlightmap2f_bufferobject;
4911                 rsurface.texcoordtexture2f_bufferoffset  = rsurface.modeltexcoordlightmap2f_bufferoffset;
4912                 break;
4913         case Q3TCGEN_VECTOR:
4914                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4915                 {
4916                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4917                         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)
4918                         {
4919                                 out_tc[0] = DotProduct(v1, rsurface.texture->tcgen.parms);
4920                                 out_tc[1] = DotProduct(v1, rsurface.texture->tcgen.parms + 3);
4921                         }
4922                 }
4923                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
4924                 rsurface.texcoordtexture2f_bufferobject  = 0;
4925                 rsurface.texcoordtexture2f_bufferoffset  = 0;
4926                 break;
4927         case Q3TCGEN_ENVIRONMENT:
4928                 // make environment reflections using a spheremap
4929                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4930                 {
4931                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4932                         const float *vertex = rsurface.modelvertex3f + 3 * surface->num_firstvertex;
4933                         const float *normal = rsurface.modelnormal3f + 3 * surface->num_firstvertex;
4934                         float *out_tc = rsurface.array_generatedtexcoordtexture2f + 2 * surface->num_firstvertex;
4935                         for (j = 0;j < surface->num_vertices;j++, vertex += 3, normal += 3, out_tc += 2)
4936                         {
4937                                 float l, d, eyedir[3];
4938                                 VectorSubtract(rsurface.modelorg, vertex, eyedir);
4939                                 l = 0.5f / VectorLength(eyedir);
4940                                 d = DotProduct(normal, eyedir)*2;
4941                                 out_tc[0] = 0.5f + (normal[1]*d - eyedir[1])*l;
4942                                 out_tc[1] = 0.5f - (normal[2]*d - eyedir[2])*l;
4943                         }
4944                 }
4945                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
4946                 rsurface.texcoordtexture2f_bufferobject  = 0;
4947                 rsurface.texcoordtexture2f_bufferoffset  = 0;
4948                 break;
4949         }
4950         // the only tcmod that needs software vertex processing is turbulent, so
4951         // check for it here and apply the changes if needed
4952         // and we only support that as the first one
4953         // (handling a mixture of turbulent and other tcmods would be problematic
4954         //  without punting it entirely to a software path)
4955         if (rsurface.texture->tcmods[0].tcmod == Q3TCMOD_TURBULENT)
4956         {
4957                 amplitude = rsurface.texture->tcmods[0].parms[1];
4958                 animpos = rsurface.texture->tcmods[0].parms[2] + r_refdef.time * rsurface.texture->tcmods[0].parms[3];
4959                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4960                 {
4961                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4962                         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)
4963                         {
4964                                 out_tc[0] = in_tc[0] + amplitude * sin(((v1[0] + v1[2]) * 1.0 / 1024.0f + animpos) * M_PI * 2);
4965                                 out_tc[1] = in_tc[1] + amplitude * sin(((v1[1]        ) * 1.0 / 1024.0f + animpos) * M_PI * 2);
4966                         }
4967                 }
4968                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
4969                 rsurface.texcoordtexture2f_bufferobject  = 0;
4970                 rsurface.texcoordtexture2f_bufferoffset  = 0;
4971         }
4972         rsurface.texcoordlightmap2f              = rsurface.modeltexcoordlightmap2f;
4973         rsurface.texcoordlightmap2f_bufferobject = rsurface.modeltexcoordlightmap2f_bufferobject;
4974         rsurface.texcoordlightmap2f_bufferoffset = rsurface.modeltexcoordlightmap2f_bufferoffset;
4975         R_Mesh_VertexPointer(rsurface.vertex3f, rsurface.vertex3f_bufferobject, rsurface.vertex3f_bufferoffset);
4976 }
4977
4978 void RSurf_DrawBatch_Simple(int texturenumsurfaces, msurface_t **texturesurfacelist)
4979 {
4980         int i, j;
4981         const msurface_t *surface = texturesurfacelist[0];
4982         const msurface_t *surface2;
4983         int firstvertex;
4984         int endvertex;
4985         int numvertices;
4986         int numtriangles;
4987         // TODO: lock all array ranges before render, rather than on each surface
4988         if (texturenumsurfaces == 1)
4989         {
4990                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
4991                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
4992         }
4993         else if (r_batchmode.integer == 2)
4994         {
4995                 #define MAXBATCHTRIANGLES 4096
4996                 int batchtriangles = 0;
4997                 int batchelements[MAXBATCHTRIANGLES*3];
4998                 for (i = 0;i < texturenumsurfaces;i = j)
4999                 {
5000                         surface = texturesurfacelist[i];
5001                         j = i + 1;
5002                         if (surface->num_triangles > MAXBATCHTRIANGLES)
5003                         {
5004                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5005                                 continue;
5006                         }
5007                         memcpy(batchelements, rsurface.modelelement3i + 3 * surface->num_firsttriangle, surface->num_triangles * sizeof(int[3]));
5008                         batchtriangles = surface->num_triangles;
5009                         firstvertex = surface->num_firstvertex;
5010                         endvertex = surface->num_firstvertex + surface->num_vertices;
5011                         for (;j < texturenumsurfaces;j++)
5012                         {
5013                                 surface2 = texturesurfacelist[j];
5014                                 if (batchtriangles + surface2->num_triangles > MAXBATCHTRIANGLES)
5015                                         break;
5016                                 memcpy(batchelements + batchtriangles * 3, rsurface.modelelement3i + 3 * surface2->num_firsttriangle, surface2->num_triangles * sizeof(int[3]));
5017                                 batchtriangles += surface2->num_triangles;
5018                                 firstvertex = min(firstvertex, surface2->num_firstvertex);
5019                                 endvertex = max(endvertex, surface2->num_firstvertex + surface2->num_vertices);
5020                         }
5021                         surface2 = texturesurfacelist[j-1];
5022                         numvertices = endvertex - firstvertex;
5023                         R_Mesh_Draw(firstvertex, numvertices, batchtriangles, batchelements, 0, 0);
5024                 }
5025         }
5026         else if (r_batchmode.integer == 1)
5027         {
5028                 for (i = 0;i < texturenumsurfaces;i = j)
5029                 {
5030                         surface = texturesurfacelist[i];
5031                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5032                                 if (texturesurfacelist[j] != surface2)
5033                                         break;
5034                         surface2 = texturesurfacelist[j-1];
5035                         numvertices = surface2->num_firstvertex + surface2->num_vertices - surface->num_firstvertex;
5036                         numtriangles = surface2->num_firsttriangle + surface2->num_triangles - surface->num_firsttriangle;
5037                         GL_LockArrays(surface->num_firstvertex, numvertices);
5038                         R_Mesh_Draw(surface->num_firstvertex, numvertices, numtriangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5039                 }
5040         }
5041         else
5042         {
5043                 for (i = 0;i < texturenumsurfaces;i++)
5044                 {
5045                         surface = texturesurfacelist[i];
5046                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5047                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5048                 }
5049         }
5050 }
5051
5052 static void RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(int texturenumsurfaces, msurface_t **texturesurfacelist, int lightmaptexunit, int deluxemaptexunit, int refractiontexunit, int reflectiontexunit)
5053 {
5054         int i, planeindex, vertexindex;
5055         float d, bestd;
5056         vec3_t vert;
5057         const float *v;
5058         r_waterstate_waterplane_t *p, *bestp;
5059         msurface_t *surface;
5060         if (r_waterstate.renderingscene)
5061                 return;
5062         for (i = 0;i < texturenumsurfaces;i++)
5063         {
5064                 surface = texturesurfacelist[i];
5065                 if (lightmaptexunit >= 0)
5066                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5067                 if (deluxemaptexunit >= 0)
5068                         R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5069                 // pick the closest matching water plane
5070                 bestd = 0;
5071                 bestp = NULL;
5072                 for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
5073                 {
5074                         d = 0;
5075                         for (vertexindex = 0, v = rsurface.modelvertex3f + surface->num_firstvertex * 3;vertexindex < surface->num_vertices;vertexindex++, v += 3)
5076                         {
5077                                 Matrix4x4_Transform(&rsurface.matrix, v, vert);
5078                                 d += fabs(PlaneDiff(vert, &p->plane));
5079                         }
5080                         if (bestd > d || !bestp)
5081                         {
5082                                 bestd = d;
5083                                 bestp = p;
5084                         }
5085                 }
5086                 if (bestp)
5087                 {
5088                         if (refractiontexunit >= 0)
5089                                 R_Mesh_TexBind(refractiontexunit, R_GetTexture(bestp->texture_refraction));
5090                         if (reflectiontexunit >= 0)
5091                                 R_Mesh_TexBind(reflectiontexunit, R_GetTexture(bestp->texture_reflection));
5092                 }
5093                 else
5094                 {
5095                         if (refractiontexunit >= 0)
5096                                 R_Mesh_TexBind(refractiontexunit, R_GetTexture(r_texture_black));
5097                         if (reflectiontexunit >= 0)
5098                                 R_Mesh_TexBind(reflectiontexunit, R_GetTexture(r_texture_black));
5099                 }
5100                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5101                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5102         }
5103 }
5104
5105 static void RSurf_DrawBatch_WithLightmapSwitching(int texturenumsurfaces, msurface_t **texturesurfacelist, int lightmaptexunit, int deluxemaptexunit)
5106 {
5107         int i;
5108         int j;
5109         const msurface_t *surface = texturesurfacelist[0];
5110         const msurface_t *surface2;
5111         int firstvertex;
5112         int endvertex;
5113         int numvertices;
5114         int numtriangles;
5115         // TODO: lock all array ranges before render, rather than on each surface
5116         if (texturenumsurfaces == 1)
5117         {
5118                 R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5119                 if (deluxemaptexunit >= 0)
5120                         R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5121                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5122                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5123         }
5124         else if (r_batchmode.integer == 2)
5125         {
5126                 #define MAXBATCHTRIANGLES 4096
5127                 int batchtriangles = 0;
5128                 int batchelements[MAXBATCHTRIANGLES*3];
5129                 for (i = 0;i < texturenumsurfaces;i = j)
5130                 {
5131                         surface = texturesurfacelist[i];
5132                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5133                         if (deluxemaptexunit >= 0)
5134                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5135                         j = i + 1;
5136                         if (surface->num_triangles > MAXBATCHTRIANGLES)
5137                         {
5138                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5139                                 continue;
5140                         }
5141                         memcpy(batchelements, rsurface.modelelement3i + 3 * surface->num_firsttriangle, surface->num_triangles * sizeof(int[3]));
5142                         batchtriangles = surface->num_triangles;
5143                         firstvertex = surface->num_firstvertex;
5144                         endvertex = surface->num_firstvertex + surface->num_vertices;
5145                         for (;j < texturenumsurfaces;j++)
5146                         {
5147                                 surface2 = texturesurfacelist[j];
5148                                 if (surface2->lightmaptexture != surface->lightmaptexture || batchtriangles + surface2->num_triangles > MAXBATCHTRIANGLES)
5149                                         break;
5150                                 memcpy(batchelements + batchtriangles * 3, rsurface.modelelement3i + 3 * surface2->num_firsttriangle, surface2->num_triangles * sizeof(int[3]));
5151                                 batchtriangles += surface2->num_triangles;
5152                                 firstvertex = min(firstvertex, surface2->num_firstvertex);
5153                                 endvertex = max(endvertex, surface2->num_firstvertex + surface2->num_vertices);
5154                         }
5155                         surface2 = texturesurfacelist[j-1];
5156                         numvertices = endvertex - firstvertex;
5157                         R_Mesh_Draw(firstvertex, numvertices, batchtriangles, batchelements, 0, 0);
5158                 }
5159         }
5160         else if (r_batchmode.integer == 1)
5161         {
5162 #if 0
5163                 Con_Printf("%s batch sizes ignoring lightmap:", rsurface.texture->name);
5164                 for (i = 0;i < texturenumsurfaces;i = j)
5165                 {
5166                         surface = texturesurfacelist[i];
5167                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5168                                 if (texturesurfacelist[j] != surface2)
5169                                         break;
5170                         Con_Printf(" %i", j - i);
5171                 }
5172                 Con_Printf("\n");
5173                 Con_Printf("%s batch sizes honoring lightmap:", rsurface.texture->name);
5174 #endif
5175                 for (i = 0;i < texturenumsurfaces;i = j)
5176                 {
5177                         surface = texturesurfacelist[i];
5178                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5179                         if (deluxemaptexunit >= 0)
5180                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5181                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5182                                 if (texturesurfacelist[j] != surface2 || texturesurfacelist[j]->lightmaptexture != surface->lightmaptexture)
5183                                         break;
5184 #if 0
5185                         Con_Printf(" %i", j - i);
5186 #endif
5187                         surface2 = texturesurfacelist[j-1];
5188                         numvertices = surface2->num_firstvertex + surface2->num_vertices - surface->num_firstvertex;
5189                         numtriangles = surface2->num_firsttriangle + surface2->num_triangles - surface->num_firsttriangle;
5190                         GL_LockArrays(surface->num_firstvertex, numvertices);
5191                         R_Mesh_Draw(surface->num_firstvertex, numvertices, numtriangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5192                 }
5193 #if 0
5194                 Con_Printf("\n");
5195 #endif
5196         }
5197         else
5198         {
5199                 for (i = 0;i < texturenumsurfaces;i++)
5200                 {
5201                         surface = texturesurfacelist[i];
5202                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5203                         if (deluxemaptexunit >= 0)
5204                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5205                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5206                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5207                 }
5208         }
5209 }
5210
5211 static void RSurf_DrawBatch_ShowSurfaces(int texturenumsurfaces, msurface_t **texturesurfacelist)
5212 {
5213         int j;
5214         int texturesurfaceindex;
5215         if (r_showsurfaces.integer == 2)
5216         {
5217                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5218                 {
5219                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5220                         for (j = 0;j < surface->num_triangles;j++)
5221                         {
5222                                 float f = ((j + surface->num_firsttriangle) & 31) * (1.0f / 31.0f) * r_view.colorscale;
5223                                 GL_Color(f, f, f, 1);
5224                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, 1, (rsurface.modelelement3i + 3 * (j + surface->num_firsttriangle)), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * (j + surface->num_firsttriangle)));
5225                         }
5226                 }
5227         }
5228         else
5229         {
5230                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5231                 {
5232                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5233                         int k = (int)(((size_t)surface) / sizeof(msurface_t));
5234                         GL_Color((k & 15) * (1.0f / 16.0f) * r_view.colorscale, ((k >> 4) & 15) * (1.0f / 16.0f) * r_view.colorscale, ((k >> 8) & 15) * (1.0f / 16.0f) * r_view.colorscale, 1);
5235                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5236                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5237                 }
5238         }
5239 }
5240
5241 static void RSurf_DrawBatch_GL11_ApplyFog(int texturenumsurfaces, msurface_t **texturesurfacelist)
5242 {
5243         int texturesurfaceindex;
5244         int i;
5245         float f;
5246         float *v, *c, *c2;
5247         if (rsurface.lightmapcolor4f)
5248         {
5249                 // generate color arrays for the surfaces in this list
5250                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5251                 {
5252                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5253                         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)
5254                         {
5255                                 f = FogPoint_Model(v);
5256                                 c2[0] = c[0] * f;
5257                                 c2[1] = c[1] * f;
5258                                 c2[2] = c[2] * f;
5259                                 c2[3] = c[3];
5260                         }
5261                 }
5262         }
5263         else
5264         {
5265                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5266                 {
5267                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5268                         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)
5269                         {
5270                                 f = FogPoint_Model(v);
5271                                 c2[0] = f;
5272                                 c2[1] = f;
5273                                 c2[2] = f;
5274                                 c2[3] = 1;
5275                         }
5276                 }
5277         }
5278         rsurface.lightmapcolor4f = rsurface.array_color4f;
5279         rsurface.lightmapcolor4f_bufferobject = 0;
5280         rsurface.lightmapcolor4f_bufferoffset = 0;
5281 }
5282
5283 static void RSurf_DrawBatch_GL11_ApplyColor(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a)
5284 {
5285         int texturesurfaceindex;
5286         int i;
5287         float *c, *c2;
5288         if (!rsurface.lightmapcolor4f)
5289                 return;
5290         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5291         {
5292                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5293                 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)
5294                 {
5295                         c2[0] = c[0] * r;
5296                         c2[1] = c[1] * g;
5297                         c2[2] = c[2] * b;
5298                         c2[3] = c[3] * a;
5299                 }
5300         }
5301         rsurface.lightmapcolor4f = rsurface.array_color4f;
5302         rsurface.lightmapcolor4f_bufferobject = 0;
5303         rsurface.lightmapcolor4f_bufferoffset = 0;
5304 }
5305
5306 static void RSurf_DrawBatch_GL11_Lightmap(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5307 {
5308         // TODO: optimize
5309         rsurface.lightmapcolor4f = NULL;
5310         rsurface.lightmapcolor4f_bufferobject = 0;
5311         rsurface.lightmapcolor4f_bufferoffset = 0;
5312         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5313         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5314         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5315         GL_Color(r, g, b, a);
5316         RSurf_DrawBatch_WithLightmapSwitching(texturenumsurfaces, texturesurfacelist, 0, -1);
5317 }
5318
5319 static void RSurf_DrawBatch_GL11_Unlit(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5320 {
5321         // TODO: optimize applyfog && applycolor case
5322         // just apply fog if necessary, and tint the fog color array if necessary
5323         rsurface.lightmapcolor4f = NULL;
5324         rsurface.lightmapcolor4f_bufferobject = 0;
5325         rsurface.lightmapcolor4f_bufferoffset = 0;
5326         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5327         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5328         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5329         GL_Color(r, g, b, a);
5330         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5331 }
5332
5333 static void RSurf_DrawBatch_GL11_VertexColor(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5334 {
5335         int texturesurfaceindex;
5336         int i;
5337         float *c;
5338         // TODO: optimize
5339         if (texturesurfacelist[0]->lightmapinfo && texturesurfacelist[0]->lightmapinfo->stainsamples)
5340         {
5341                 // generate color arrays for the surfaces in this list
5342                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5343                 {
5344                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5345                         for (i = 0, c = rsurface.array_color4f + 4 * surface->num_firstvertex;i < surface->num_vertices;i++, c += 4)
5346                         {
5347                                 if (surface->lightmapinfo->samples)
5348                                 {
5349                                         const unsigned char *lm = surface->lightmapinfo->samples + (rsurface.modellightmapoffsets + surface->num_firstvertex)[i];
5350                                         float scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[0]] * (1.0f / 32768.0f);
5351                                         VectorScale(lm, scale, c);
5352                                         if (surface->lightmapinfo->styles[1] != 255)
5353                                         {
5354                                                 int size3 = ((surface->lightmapinfo->extents[0]>>4)+1)*((surface->lightmapinfo->extents[1]>>4)+1)*3;
5355                                                 lm += size3;
5356                                                 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[1]] * (1.0f / 32768.0f);
5357                                                 VectorMA(c, scale, lm, c);
5358                                                 if (surface->lightmapinfo->styles[2] != 255)
5359                                                 {
5360                                                         lm += size3;
5361                                                         scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[2]] * (1.0f / 32768.0f);
5362                                                         VectorMA(c, scale, lm, c);
5363                                                         if (surface->lightmapinfo->styles[3] != 255)
5364                                                         {
5365                                                                 lm += size3;
5366                                                                 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[3]] * (1.0f / 32768.0f);
5367                                                                 VectorMA(c, scale, lm, c);
5368                                                         }
5369                                                 }
5370                                         }
5371                                 }
5372                                 else
5373                                         VectorClear(c);
5374                                 c[3] = 1;
5375                         }
5376                 }
5377                 rsurface.lightmapcolor4f = rsurface.array_color4f;
5378                 rsurface.lightmapcolor4f_bufferobject = 0;
5379                 rsurface.lightmapcolor4f_bufferoffset = 0;
5380         }
5381         else
5382         {
5383                 rsurface.lightmapcolor4f = rsurface.modellightmapcolor4f;
5384                 rsurface.lightmapcolor4f_bufferobject = rsurface.modellightmapcolor4f_bufferobject;
5385                 rsurface.lightmapcolor4f_bufferoffset = rsurface.modellightmapcolor4f_bufferoffset;
5386         }
5387         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5388         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5389         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5390         GL_Color(r, g, b, a);
5391         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5392 }
5393
5394 static void RSurf_DrawBatch_GL11_VertexShade(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5395 {
5396         int texturesurfaceindex;
5397         int i;
5398         float f;
5399         float *v, *c, *c2;
5400         vec3_t ambientcolor;
5401         vec3_t diffusecolor;
5402         vec3_t lightdir;
5403         // TODO: optimize
5404         // model lighting
5405         VectorCopy(rsurface.modellight_lightdir, lightdir);
5406         f = 0.5f * r_refdef.lightmapintensity;
5407         ambientcolor[0] = rsurface.modellight_ambient[0] * r * f;
5408         ambientcolor[1] = rsurface.modellight_ambient[1] * g * f;
5409         ambientcolor[2] = rsurface.modellight_ambient[2] * b * f;
5410         diffusecolor[0] = rsurface.modellight_diffuse[0] * r * f;
5411         diffusecolor[1] = rsurface.modellight_diffuse[1] * g * f;
5412         diffusecolor[2] = rsurface.modellight_diffuse[2] * b * f;
5413         if (VectorLength2(diffusecolor) > 0)
5414         {
5415                 // generate color arrays for the surfaces in this list
5416                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5417                 {
5418                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5419                         int numverts = surface->num_vertices;
5420                         v = rsurface.vertex3f + 3 * surface->num_firstvertex;
5421                         c2 = rsurface.normal3f + 3 * surface->num_firstvertex;
5422                         c = rsurface.array_color4f + 4 * surface->num_firstvertex;
5423                         // q3-style directional shading
5424                         for (i = 0;i < numverts;i++, v += 3, c2 += 3, c += 4)
5425                         {
5426                                 if ((f = DotProduct(c2, lightdir)) > 0)
5427                                         VectorMA(ambientcolor, f, diffusecolor, c);
5428                                 else
5429                                         VectorCopy(ambientcolor, c);
5430                                 c[3] = a;
5431                         }
5432                 }
5433                 r = 1;
5434                 g = 1;
5435                 b = 1;
5436                 a = 1;
5437                 applycolor = false;
5438                 rsurface.lightmapcolor4f = rsurface.array_color4f;
5439                 rsurface.lightmapcolor4f_bufferobject = 0;
5440                 rsurface.lightmapcolor4f_bufferoffset = 0;
5441         }
5442         else
5443         {
5444                 r = ambientcolor[0];
5445                 g = ambientcolor[1];
5446                 b = ambientcolor[2];
5447                 rsurface.lightmapcolor4f = NULL;
5448                 rsurface.lightmapcolor4f_bufferobject = 0;
5449                 rsurface.lightmapcolor4f_bufferoffset = 0;
5450         }
5451         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5452         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5453         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5454         GL_Color(r, g, b, a);
5455         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5456 }
5457
5458 void RSurf_SetupDepthAndCulling(void)
5459 {
5460         // submodels are biased to avoid z-fighting with world surfaces that they
5461         // may be exactly overlapping (avoids z-fighting artifacts on certain
5462         // doors and things in Quake maps)
5463         GL_DepthRange(0, (rsurface.texture->currentmaterialflags & MATERIALFLAG_SHORTDEPTHRANGE) ? 0.0625 : 1);
5464         GL_PolygonOffset(rsurface.basepolygonfactor + rsurface.texture->biaspolygonfactor, rsurface.basepolygonoffset + rsurface.texture->biaspolygonoffset);
5465         GL_DepthTest(!(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST));
5466         GL_CullFace((rsurface.texture->currentmaterialflags & MATERIALFLAG_NOCULLFACE) ? GL_NONE : r_view.cullface_back);
5467 }
5468
5469 static void R_DrawTextureSurfaceList_ShowSurfaces(int texturenumsurfaces, msurface_t **texturesurfacelist)
5470 {
5471         RSurf_SetupDepthAndCulling();
5472         if (rsurface.mode != RSURFMODE_SHOWSURFACES)
5473         {
5474                 rsurface.mode = RSURFMODE_SHOWSURFACES;
5475                 GL_DepthMask(true);
5476                 GL_BlendFunc(GL_ONE, GL_ZERO);
5477                 R_Mesh_ColorPointer(NULL, 0, 0);
5478                 R_Mesh_ResetTextureState();
5479         }
5480         RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
5481         RSurf_DrawBatch_ShowSurfaces(texturenumsurfaces, texturesurfacelist);
5482 }
5483
5484 static void R_DrawTextureSurfaceList_Sky(int texturenumsurfaces, msurface_t **texturesurfacelist)
5485 {
5486         // transparent sky would be ridiculous
5487         if ((rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED))
5488                 return;
5489         if (rsurface.mode != RSURFMODE_SKY)
5490         {
5491                 if (rsurface.mode == RSURFMODE_GLSL)
5492                 {
5493                         qglUseProgramObjectARB(0);CHECKGLERROR
5494                 }
5495                 rsurface.mode = RSURFMODE_SKY;
5496         }
5497         if (skyrendernow)
5498         {
5499                 skyrendernow = false;
5500                 R_Sky();
5501                 // restore entity matrix
5502                 R_Mesh_Matrix(&rsurface.matrix);
5503         }
5504         RSurf_SetupDepthAndCulling();
5505         GL_DepthMask(true);
5506         // LordHavoc: HalfLife maps have freaky skypolys so don't use
5507         // skymasking on them, and Quake3 never did sky masking (unlike
5508         // software Quake and software Quake2), so disable the sky masking
5509         // in Quake3 maps as it causes problems with q3map2 sky tricks,
5510         // and skymasking also looks very bad when noclipping outside the
5511         // level, so don't use it then either.
5512         if (r_refdef.worldmodel && r_refdef.worldmodel->type == mod_brushq1 && r_q1bsp_skymasking.integer && !r_viewcache.world_novis)
5513         {
5514                 GL_Color(r_refdef.fogcolor[0], r_refdef.fogcolor[1], r_refdef.fogcolor[2], 1);
5515                 R_Mesh_ColorPointer(NULL, 0, 0);
5516                 R_Mesh_ResetTextureState();
5517                 if (skyrendermasked)
5518                 {
5519                         // depth-only (masking)
5520                         GL_ColorMask(0,0,0,0);
5521                         // just to make sure that braindead drivers don't draw
5522                         // anything despite that colormask...
5523                         GL_BlendFunc(GL_ZERO, GL_ONE);
5524                 }
5525                 else
5526                 {
5527                         // fog sky
5528                         GL_BlendFunc(GL_ONE, GL_ZERO);
5529                 }
5530                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
5531                 RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5532                 if (skyrendermasked)
5533                         GL_ColorMask(r_view.colormask[0], r_view.colormask[1], r_view.colormask[2], 1);
5534         }
5535 }
5536
5537 static void R_DrawTextureSurfaceList_GL20(int texturenumsurfaces, msurface_t **texturesurfacelist)
5538 {
5539         if (r_waterstate.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION)))
5540                 return;
5541
5542         if (rsurface.mode != RSURFMODE_GLSL)
5543         {
5544                 rsurface.mode = RSURFMODE_GLSL;
5545                 R_Mesh_ResetTextureState();
5546                 GL_Color(1, 1, 1, 1);
5547         }
5548
5549         R_Mesh_TexMatrix(0, &rsurface.texture->currenttexmatrix);
5550         R_Mesh_TexBind(0, R_GetTexture(rsurface.texture->currentskinframe->nmap));
5551         R_Mesh_TexBind(1, R_GetTexture(rsurface.texture->basetexture));
5552         R_Mesh_TexBind(2, R_GetTexture(rsurface.texture->glosstexture));
5553         R_Mesh_TexBind(4, R_GetTexture(r_texture_fogattenuation));
5554         R_Mesh_TexBind(5, R_GetTexture(rsurface.texture->currentskinframe->pants));
5555         R_Mesh_TexBind(6, R_GetTexture(rsurface.texture->currentskinframe->shirt));
5556         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
5557         {
5558                 R_Mesh_TexBind(7, R_GetTexture(r_texture_grey128));
5559                 R_Mesh_TexBind(8, R_GetTexture(r_texture_blanknormalmap));
5560                 R_Mesh_ColorPointer(NULL, 0, 0);
5561         }
5562         else if (rsurface.uselightmaptexture)
5563         {
5564                 R_Mesh_TexBind(7, R_GetTexture(texturesurfacelist[0]->lightmaptexture));
5565                 R_Mesh_TexBind(8, R_GetTexture(texturesurfacelist[0]->deluxemaptexture));
5566                 R_Mesh_ColorPointer(NULL, 0, 0);
5567         }
5568         else
5569         {
5570                 R_Mesh_TexBind(7, R_GetTexture(r_texture_white));
5571                 R_Mesh_TexBind(8, R_GetTexture(r_texture_blanknormalmap));
5572                 R_Mesh_ColorPointer(rsurface.modellightmapcolor4f, rsurface.modellightmapcolor4f_bufferobject, rsurface.modellightmapcolor4f_bufferoffset);
5573         }
5574         R_Mesh_TexBind(9, R_GetTexture(rsurface.texture->currentskinframe->glow));
5575         R_Mesh_TexBind(11, R_GetTexture(r_texture_white)); // changed per surface
5576         R_Mesh_TexBind(12, R_GetTexture(r_texture_white)); // changed per surface
5577
5578         if (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
5579         {
5580                 // render background
5581                 GL_BlendFunc(GL_ONE, GL_ZERO);
5582                 GL_DepthMask(true);
5583                 GL_AlphaTest(false);
5584
5585                 GL_Color(1, 1, 1, 1);
5586                 R_Mesh_ColorPointer(NULL, 0, 0);
5587
5588                 R_SetupSurfaceShader(vec3_origin, rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT, 1, 1, rsurface.texture->specularscale, RSURFPASS_BACKGROUND);
5589                 if (r_glsl_permutation)
5590                 {
5591                         RSurf_PrepareVerticesForBatch(true, true, texturenumsurfaces, texturesurfacelist);
5592                         R_Mesh_TexCoordPointer(0, 2, rsurface.texcoordtexture2f, rsurface.texcoordtexture2f_bufferobject, rsurface.texcoordtexture2f_bufferoffset);
5593                         R_Mesh_TexCoordPointer(1, 3, rsurface.svector3f, rsurface.svector3f_bufferobject, rsurface.svector3f_bufferoffset);
5594                         R_Mesh_TexCoordPointer(2, 3, rsurface.tvector3f, rsurface.tvector3f_bufferobject, rsurface.tvector3f_bufferoffset);
5595                         R_Mesh_TexCoordPointer(3, 3, rsurface.normal3f, rsurface.normal3f_bufferobject, rsurface.normal3f_bufferoffset);
5596                         R_Mesh_TexCoordPointer(4, 2, rsurface.modeltexcoordlightmap2f, rsurface.modeltexcoordlightmap2f_bufferobject, rsurface.modeltexcoordlightmap2f_bufferoffset);
5597                         RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(texturenumsurfaces, texturesurfacelist, -1, -1, r_glsl_permutation->loc_Texture_Refraction ? 11 : -1, r_glsl_permutation->loc_Texture_Reflection ? 12 : -1);
5598                 }
5599
5600                 GL_BlendFunc(rsurface.texture->currentlayers[0].blendfunc1, rsurface.texture->currentlayers[0].blendfunc2);
5601                 GL_DepthMask(false);
5602                 GL_AlphaTest((rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST) != 0);
5603                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
5604                 {
5605                         R_Mesh_TexBind(7, R_GetTexture(r_texture_grey128));
5606                         R_Mesh_TexBind(8, R_GetTexture(r_texture_blanknormalmap));
5607                         R_Mesh_ColorPointer(NULL, 0, 0);
5608                 }
5609                 else if (rsurface.uselightmaptexture)
5610                 {
5611                         R_Mesh_TexBind(7, R_GetTexture(texturesurfacelist[0]->lightmaptexture));
5612                         R_Mesh_TexBind(8, R_GetTexture(texturesurfacelist[0]->deluxemaptexture));
5613                         R_Mesh_ColorPointer(NULL, 0, 0);
5614                 }
5615                 else
5616                 {
5617                         R_Mesh_TexBind(7, R_GetTexture(r_texture_white));
5618                         R_Mesh_TexBind(8, R_GetTexture(r_texture_blanknormalmap));
5619                         R_Mesh_ColorPointer(rsurface.modellightmapcolor4f, rsurface.modellightmapcolor4f_bufferobject, rsurface.modellightmapcolor4f_bufferoffset);
5620                 }
5621                 R_Mesh_TexBind(11, R_GetTexture(r_texture_white)); // changed per surface
5622                 R_Mesh_TexBind(12, R_GetTexture(r_texture_white)); // changed per surface
5623         }
5624
5625         R_SetupSurfaceShader(vec3_origin, rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT, 1, 1, rsurface.texture->specularscale, RSURFPASS_BASE);
5626         if (!r_glsl_permutation)
5627                 return;
5628
5629         RSurf_PrepareVerticesForBatch(r_glsl_permutation->loc_Texture_Normal >= 0 || r_glsl_permutation->loc_LightDir >= 0, r_glsl_permutation->loc_Texture_Normal >= 0, texturenumsurfaces, texturesurfacelist);
5630         R_Mesh_TexCoordPointer(0, 2, rsurface.texcoordtexture2f, rsurface.texcoordtexture2f_bufferobject, rsurface.texcoordtexture2f_bufferoffset);
5631         R_Mesh_TexCoordPointer(1, 3, rsurface.svector3f, rsurface.svector3f_bufferobject, rsurface.svector3f_bufferoffset);
5632         R_Mesh_TexCoordPointer(2, 3, rsurface.tvector3f, rsurface.tvector3f_bufferobject, rsurface.tvector3f_bufferoffset);
5633         R_Mesh_TexCoordPointer(3, 3, rsurface.normal3f, rsurface.normal3f_bufferobject, rsurface.normal3f_bufferoffset);
5634         R_Mesh_TexCoordPointer(4, 2, rsurface.modeltexcoordlightmap2f, rsurface.modeltexcoordlightmap2f_bufferobject, rsurface.modeltexcoordlightmap2f_bufferoffset);
5635
5636         if (r_glsl_permutation->loc_Texture_Refraction >= 0)
5637         {
5638                 GL_BlendFunc(GL_ONE, GL_ZERO);
5639                 GL_DepthMask(true);
5640                 GL_AlphaTest(false);
5641         }
5642
5643         if (rsurface.uselightmaptexture && !(rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT))
5644         {
5645                 if (r_glsl_permutation->loc_Texture_Refraction >= 0 || r_glsl_permutation->loc_Texture_Reflection >= 0)
5646                         RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(texturenumsurfaces, texturesurfacelist, 7, r_glsl_permutation->loc_Texture_Deluxemap >= 0 ? 8 : -1, r_glsl_permutation->loc_Texture_Refraction >= 0 ? 11 : -1, r_glsl_permutation->loc_Texture_Reflection >= 0 ? 12 : -1);
5647                 else
5648                         RSurf_DrawBatch_WithLightmapSwitching(texturenumsurfaces, texturesurfacelist, 7, r_glsl_permutation->loc_Texture_Deluxemap >= 0 ? 8 : -1);
5649         }
5650         else
5651         {
5652                 if (r_glsl_permutation->loc_Texture_Refraction >= 0 || r_glsl_permutation->loc_Texture_Reflection >= 0)
5653                         RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(texturenumsurfaces, texturesurfacelist, -1, -1, r_glsl_permutation->loc_Texture_Refraction >= 0 ? 11 : -1, r_glsl_permutation->loc_Texture_Reflection >= 0 ? 12 : -1);
5654                 else
5655                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5656         }
5657         if (rsurface.texture->backgroundnumskinframes && !(rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED))
5658         {
5659         }
5660 }
5661
5662 static void R_DrawTextureSurfaceList_GL13(int texturenumsurfaces, msurface_t **texturesurfacelist)
5663 {
5664         // OpenGL 1.3 path - anything not completely ancient
5665         int texturesurfaceindex;
5666         qboolean applycolor;
5667         qboolean applyfog;
5668         rmeshstate_t m;
5669         int layerindex;
5670         const texturelayer_t *layer;
5671         if (rsurface.mode != RSURFMODE_MULTIPASS)
5672                 rsurface.mode = RSURFMODE_MULTIPASS;
5673         RSurf_PrepareVerticesForBatch(true, false, texturenumsurfaces, texturesurfacelist);
5674
5675         for (layerindex = 0, layer = rsurface.texture->currentlayers;layerindex < rsurface.texture->currentnumlayers;layerindex++, layer++)
5676         {
5677                 vec4_t layercolor;
5678                 int layertexrgbscale;
5679                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
5680                 {
5681                         if (layerindex == 0)
5682                                 GL_AlphaTest(true);
5683                         else
5684                         {
5685                                 GL_AlphaTest(false);
5686                                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
5687                         }
5688                 }
5689                 GL_DepthMask(layer->depthmask);
5690                 GL_BlendFunc(layer->blendfunc1, layer->blendfunc2);
5691                 if (layer->color[0] > 2 || layer->color[1] > 2 || layer->color[2] > 2)
5692                 {
5693                         layertexrgbscale = 4;
5694                         VectorScale(layer->color, 0.25f, layercolor);
5695                 }
5696                 else if (layer->color[0] > 1 || layer->color[1] > 1 || layer->color[2] > 1)
5697                 {
5698                         layertexrgbscale = 2;
5699                         VectorScale(layer->color, 0.5f, layercolor);
5700                 }
5701                 else
5702                 {
5703                         layertexrgbscale = 1;
5704                         VectorScale(layer->color, 1.0f, layercolor);
5705                 }
5706                 layercolor[3] = layer->color[3];
5707                 applycolor = layercolor[0] != 1 || layercolor[1] != 1 || layercolor[2] != 1 || layercolor[3] != 1;
5708                 R_Mesh_ColorPointer(NULL, 0, 0);
5709                 applyfog = (layer->flags & TEXTURELAYERFLAG_FOGDARKEN) != 0;
5710                 switch (layer->type)
5711                 {
5712                 case TEXTURELAYERTYPE_LITTEXTURE:
5713                         memset(&m, 0, sizeof(m));
5714                         m.tex[0] = R_GetTexture(r_texture_white);
5715                         m.pointer_texcoord[0] = rsurface.modeltexcoordlightmap2f;
5716                         m.pointer_texcoord_bufferobject[0] = rsurface.modeltexcoordlightmap2f_bufferobject;
5717                         m.pointer_texcoord_bufferoffset[0] = rsurface.modeltexcoordlightmap2f_bufferoffset;
5718                         m.tex[1] = R_GetTexture(layer->texture);
5719                         m.texmatrix[1] = layer->texmatrix;
5720                         m.texrgbscale[1] = layertexrgbscale;
5721                         m.pointer_texcoord[1] = rsurface.texcoordtexture2f;
5722                         m.pointer_texcoord_bufferobject[1] = rsurface.texcoordtexture2f_bufferobject;
5723                         m.pointer_texcoord_bufferoffset[1] = rsurface.texcoordtexture2f_bufferoffset;
5724                         R_Mesh_TextureState(&m);
5725                         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
5726                                 RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
5727                         else if (rsurface.uselightmaptexture)
5728                                 RSurf_DrawBatch_GL11_Lightmap(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
5729                         else
5730                                 RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
5731                         break;
5732                 case TEXTURELAYERTYPE_TEXTURE:
5733                         memset(&m, 0, sizeof(m));
5734                         m.tex[0] = R_GetTexture(layer->texture);
5735                         m.texmatrix[0] = layer->texmatrix;
5736                         m.texrgbscale[0] = layertexrgbscale;
5737                         m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5738                         m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5739                         m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5740                         R_Mesh_TextureState(&m);
5741                         RSurf_DrawBatch_GL11_Unlit(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
5742                         break;
5743                 case TEXTURELAYERTYPE_FOG:
5744                         memset(&m, 0, sizeof(m));
5745                         m.texrgbscale[0] = layertexrgbscale;
5746                         if (layer->texture)
5747                         {
5748                                 m.tex[0] = R_GetTexture(layer->texture);
5749                                 m.texmatrix[0] = layer->texmatrix;
5750                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5751                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5752                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5753                         }
5754                         R_Mesh_TextureState(&m);
5755                         // generate a color array for the fog pass
5756                         R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
5757                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5758                         {
5759                                 int i;
5760                                 float f, *v, *c;
5761                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5762                                 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)
5763                                 {
5764                                         f = 1 - FogPoint_Model(v);
5765                                         c[0] = layercolor[0];
5766                                         c[1] = layercolor[1];
5767                                         c[2] = layercolor[2];
5768                                         c[3] = f * layercolor[3];
5769                                 }
5770                         }
5771                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5772                         break;
5773                 default:
5774                         Con_Printf("R_DrawTextureSurfaceList: unknown layer type %i\n", layer->type);
5775                 }
5776                 GL_LockArrays(0, 0);
5777         }
5778         CHECKGLERROR
5779         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
5780         {
5781                 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
5782                 GL_AlphaTest(false);
5783         }
5784 }
5785
5786 static void R_DrawTextureSurfaceList_GL11(int texturenumsurfaces, msurface_t **texturesurfacelist)
5787 {
5788         // OpenGL 1.1 - crusty old voodoo path
5789         int texturesurfaceindex;
5790         qboolean applyfog;
5791         rmeshstate_t m;
5792         int layerindex;
5793         const texturelayer_t *layer;
5794         if (rsurface.mode != RSURFMODE_MULTIPASS)
5795                 rsurface.mode = RSURFMODE_MULTIPASS;
5796         RSurf_PrepareVerticesForBatch(true, false, texturenumsurfaces, texturesurfacelist);
5797
5798         for (layerindex = 0, layer = rsurface.texture->currentlayers;layerindex < rsurface.texture->currentnumlayers;layerindex++, layer++)
5799         {
5800                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
5801                 {
5802                         if (layerindex == 0)
5803                                 GL_AlphaTest(true);
5804                         else
5805                         {
5806                                 GL_AlphaTest(false);
5807                                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
5808                         }
5809                 }
5810                 GL_DepthMask(layer->depthmask);
5811                 GL_BlendFunc(layer->blendfunc1, layer->blendfunc2);
5812                 R_Mesh_ColorPointer(NULL, 0, 0);
5813                 applyfog = (layer->flags & TEXTURELAYERFLAG_FOGDARKEN) != 0;
5814                 switch (layer->type)
5815                 {
5816                 case TEXTURELAYERTYPE_LITTEXTURE:
5817                         if (layer->blendfunc1 == GL_ONE && layer->blendfunc2 == GL_ZERO)
5818                         {
5819                                 // two-pass lit texture with 2x rgbscale
5820                                 // first the lightmap pass
5821                                 memset(&m, 0, sizeof(m));
5822                                 m.tex[0] = R_GetTexture(r_texture_white);
5823                                 m.pointer_texcoord[0] = rsurface.modeltexcoordlightmap2f;
5824                                 m.pointer_texcoord_bufferobject[0] = rsurface.modeltexcoordlightmap2f_bufferobject;
5825                                 m.pointer_texcoord_bufferoffset[0] = rsurface.modeltexcoordlightmap2f_bufferoffset;
5826                                 R_Mesh_TextureState(&m);
5827                                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
5828                                         RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
5829                                 else if (rsurface.uselightmaptexture)
5830                                         RSurf_DrawBatch_GL11_Lightmap(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
5831                                 else
5832                                         RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
5833                                 GL_LockArrays(0, 0);
5834                                 // then apply the texture to it
5835                                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
5836                                 memset(&m, 0, sizeof(m));
5837                                 m.tex[0] = R_GetTexture(layer->texture);
5838                                 m.texmatrix[0] = layer->texmatrix;
5839                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5840                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5841                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5842                                 R_Mesh_TextureState(&m);
5843                                 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);
5844                         }
5845                         else
5846                         {
5847                                 // single pass vertex-lighting-only texture with 1x rgbscale and transparency support
5848                                 memset(&m, 0, sizeof(m));
5849                                 m.tex[0] = R_GetTexture(layer->texture);
5850                                 m.texmatrix[0] = layer->texmatrix;
5851                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5852                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5853                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5854                                 R_Mesh_TextureState(&m);
5855                                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
5856                                         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);
5857                                 else
5858                                         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);
5859                         }
5860                         break;
5861                 case TEXTURELAYERTYPE_TEXTURE:
5862                         // singletexture unlit texture with transparency support
5863                         memset(&m, 0, sizeof(m));
5864                         m.tex[0] = R_GetTexture(layer->texture);
5865                         m.texmatrix[0] = layer->texmatrix;
5866                         m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5867                         m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5868                         m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5869                         R_Mesh_TextureState(&m);
5870                         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);
5871                         break;
5872                 case TEXTURELAYERTYPE_FOG:
5873                         // singletexture fogging
5874                         R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
5875                         if (layer->texture)
5876                         {
5877                                 memset(&m, 0, sizeof(m));
5878                                 m.tex[0] = R_GetTexture(layer->texture);
5879                                 m.texmatrix[0] = layer->texmatrix;
5880                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5881                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5882                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5883                                 R_Mesh_TextureState(&m);
5884                         }
5885                         else
5886                                 R_Mesh_ResetTextureState();
5887                         // generate a color array for the fog pass
5888                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5889                         {
5890                                 int i;
5891                                 float f, *v, *c;
5892                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5893                                 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)
5894                                 {
5895                                         f = 1 - FogPoint_Model(v);
5896                                         c[0] = layer->color[0];
5897                                         c[1] = layer->color[1];
5898                                         c[2] = layer->color[2];
5899                                         c[3] = f * layer->color[3];
5900                                 }
5901                         }
5902                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5903                         break;
5904                 default:
5905                         Con_Printf("R_DrawTextureSurfaceList: unknown layer type %i\n", layer->type);
5906                 }
5907                 GL_LockArrays(0, 0);
5908         }
5909         CHECKGLERROR
5910         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
5911         {
5912                 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
5913                 GL_AlphaTest(false);
5914         }
5915 }
5916
5917 static void R_DrawTextureSurfaceList(int texturenumsurfaces, msurface_t **texturesurfacelist, qboolean writedepth, qboolean depthonly)
5918 {
5919         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_NODRAW)
5920                 return;
5921         rsurface.rtlight = NULL;
5922         CHECKGLERROR
5923         if (depthonly)
5924         {
5925                 if ((rsurface.texture->currentmaterialflags & (MATERIALFLAG_NODEPTHTEST | MATERIALFLAG_BLENDED | MATERIALFLAG_ALPHATEST)))
5926                         return;
5927                 if (r_waterstate.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION)))
5928                         return;
5929                 if (rsurface.mode != RSURFMODE_MULTIPASS)
5930                         rsurface.mode = RSURFMODE_MULTIPASS;
5931                 if (r_depthfirst.integer == 3)
5932                 {
5933                         int i = (int)(texturesurfacelist[0] - rsurface.modelsurfaces);
5934                         if (!r_view.showdebug)
5935                                 GL_Color(0, 0, 0, 1);
5936                         else
5937                                 GL_Color(((i >> 6) & 7) / 7.0f, ((i >> 3) & 7) / 7.0f, (i & 7) / 7.0f,1);
5938                 }
5939                 else
5940                 {
5941                         GL_ColorMask(0,0,0,0);
5942                         GL_Color(1,1,1,1);
5943                 }
5944                 RSurf_SetupDepthAndCulling();
5945                 GL_DepthTest(true);
5946                 GL_BlendFunc(GL_ONE, GL_ZERO);
5947                 GL_DepthMask(true);
5948                 GL_AlphaTest(false);
5949                 R_Mesh_ColorPointer(NULL, 0, 0);
5950                 R_Mesh_ResetTextureState();
5951                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
5952                 RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5953                 GL_ColorMask(r_view.colormask[0], r_view.colormask[1], r_view.colormask[2], 1);
5954         }
5955         else if (r_depthfirst.integer == 3)
5956                 return;
5957         else if (!r_view.showdebug && (r_showsurfaces.integer || gl_lightmaps.integer))
5958         {
5959                 GL_Color(0, 0, 0, 1);
5960                 RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5961         }
5962         else if (r_showsurfaces.integer)
5963         {
5964                 if (rsurface.mode != RSURFMODE_MULTIPASS)
5965                         rsurface.mode = RSURFMODE_MULTIPASS;
5966                 RSurf_SetupDepthAndCulling();
5967                 GL_DepthTest(true);
5968                 GL_BlendFunc(GL_ONE, GL_ZERO);
5969                 GL_DepthMask(writedepth);
5970                 GL_Color(1,1,1,1);
5971                 GL_AlphaTest(false);
5972                 R_Mesh_ColorPointer(NULL, 0, 0);
5973                 R_Mesh_ResetTextureState();
5974                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
5975                 R_DrawTextureSurfaceList_ShowSurfaces(texturenumsurfaces, texturesurfacelist);
5976         }
5977         else if (gl_lightmaps.integer)
5978         {
5979                 rmeshstate_t m;
5980                 if (rsurface.mode != RSURFMODE_MULTIPASS)
5981                         rsurface.mode = RSURFMODE_MULTIPASS;
5982                 GL_DepthRange(0, (rsurface.texture->currentmaterialflags & MATERIALFLAG_SHORTDEPTHRANGE) ? 0.0625 : 1);
5983                 GL_DepthTest(true);
5984                 GL_CullFace((rsurface.texture->currentmaterialflags & MATERIALFLAG_NOCULLFACE) ? GL_NONE : r_view.cullface_back);
5985                 GL_BlendFunc(GL_ONE, GL_ZERO);
5986                 GL_DepthMask(writedepth);
5987                 GL_Color(1,1,1,1);
5988                 GL_AlphaTest(false);
5989                 R_Mesh_ColorPointer(NULL, 0, 0);
5990                 memset(&m, 0, sizeof(m));
5991                 m.tex[0] = R_GetTexture(r_texture_white);
5992                 m.pointer_texcoord[0] = rsurface.modeltexcoordlightmap2f;
5993                 m.pointer_texcoord_bufferobject[0] = rsurface.modeltexcoordlightmap2f_bufferobject;
5994                 m.pointer_texcoord_bufferoffset[0] = rsurface.modeltexcoordlightmap2f_bufferoffset;
5995                 R_Mesh_TextureState(&m);
5996                 RSurf_PrepareVerticesForBatch(rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT, false, texturenumsurfaces, texturesurfacelist);
5997                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
5998                         RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
5999                 else if (rsurface.uselightmaptexture)
6000                         RSurf_DrawBatch_GL11_Lightmap(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
6001                 else
6002                         RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
6003         }
6004         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_SKY)
6005                 R_DrawTextureSurfaceList_Sky(texturenumsurfaces, texturesurfacelist);
6006         else if (rsurface.texture->currentnumlayers)
6007         {
6008                 // write depth for anything we skipped on the depth-only pass earlier
6009                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
6010                         writedepth = true;
6011                 RSurf_SetupDepthAndCulling();
6012                 GL_BlendFunc(rsurface.texture->currentlayers[0].blendfunc1, rsurface.texture->currentlayers[0].blendfunc2);
6013                 GL_DepthMask(writedepth && !(rsurface.texture->currentmaterialflags & MATERIALFLAG_BLENDED));
6014                 GL_AlphaTest((rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST) != 0);
6015                 if (r_glsl.integer && gl_support_fragment_shader)
6016                         R_DrawTextureSurfaceList_GL20(texturenumsurfaces, texturesurfacelist);
6017                 else if (gl_combine.integer && r_textureunits.integer >= 2)
6018                         R_DrawTextureSurfaceList_GL13(texturenumsurfaces, texturesurfacelist);
6019                 else
6020                         R_DrawTextureSurfaceList_GL11(texturenumsurfaces, texturesurfacelist);
6021         }
6022         CHECKGLERROR
6023         GL_LockArrays(0, 0);
6024 }
6025
6026 static void R_DrawSurface_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
6027 {
6028         int i, j;
6029         int texturenumsurfaces, endsurface;
6030         texture_t *texture;
6031         msurface_t *surface;
6032         msurface_t *texturesurfacelist[1024];
6033
6034         // if the model is static it doesn't matter what value we give for
6035         // wantnormals and wanttangents, so this logic uses only rules applicable
6036         // to a model, knowing that they are meaningless otherwise
6037         if (ent == r_refdef.worldentity)
6038                 RSurf_ActiveWorldEntity();
6039         else if ((ent->effects & EF_FULLBRIGHT) || r_showsurfaces.integer || VectorLength2(ent->modellight_diffuse) < (1.0f / 256.0f))
6040                 RSurf_ActiveModelEntity(ent, false, false);
6041         else
6042                 RSurf_ActiveModelEntity(ent, true, r_glsl.integer && gl_support_fragment_shader);
6043
6044         for (i = 0;i < numsurfaces;i = j)
6045         {
6046                 j = i + 1;
6047                 surface = rsurface.modelsurfaces + surfacelist[i];
6048                 texture = surface->texture;
6049                 R_UpdateTextureInfo(ent, texture);
6050                 rsurface.texture = texture->currentframe;
6051                 rsurface.uselightmaptexture = surface->lightmaptexture != NULL;
6052                 // scan ahead until we find a different texture
6053                 endsurface = min(i + 1024, numsurfaces);
6054                 texturenumsurfaces = 0;
6055                 texturesurfacelist[texturenumsurfaces++] = surface;
6056                 for (;j < endsurface;j++)
6057                 {
6058                         surface = rsurface.modelsurfaces + surfacelist[j];
6059                         if (texture != surface->texture || rsurface.uselightmaptexture != (surface->lightmaptexture != NULL))
6060                                 break;
6061                         texturesurfacelist[texturenumsurfaces++] = surface;
6062                 }
6063                 // render the range of surfaces
6064                 R_DrawTextureSurfaceList(texturenumsurfaces, texturesurfacelist, true, false);
6065         }
6066
6067         RSurf_CleanUp();
6068 }
6069
6070 void R_QueueSurfaceList(entity_render_t *ent, int numsurfaces, msurface_t **surfacelist, int flagsmask, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes)
6071 {
6072         int i, j;
6073         vec3_t tempcenter, center;
6074         texture_t *texture;
6075         // if we're rendering water textures (extra scene renders), use a separate loop to avoid burdening the main one
6076         if (addwaterplanes)
6077         {
6078                 for (i = 0;i < numsurfaces;i++)
6079                         if (surfacelist[i]->texture->currentframe->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION))
6080                                 R_Water_AddWaterPlane(surfacelist[i]);
6081                 return;
6082         }
6083         // break the surface list down into batches by texture and use of lightmapping
6084         for (i = 0;i < numsurfaces;i = j)
6085         {
6086                 j = i + 1;
6087                 // texture is the base texture pointer, rsurface.texture is the
6088                 // current frame/skin the texture is directing us to use (for example
6089                 // if a model has 2 skins and it is on skin 1, then skin 0 tells us to
6090                 // use skin 1 instead)
6091                 texture = surfacelist[i]->texture;
6092                 rsurface.texture = texture->currentframe;
6093                 rsurface.uselightmaptexture = surfacelist[i]->lightmaptexture != NULL;
6094                 if (!(rsurface.texture->currentmaterialflags & flagsmask))
6095                 {
6096                         // if this texture is not the kind we want, skip ahead to the next one
6097                         for (;j < numsurfaces && texture == surfacelist[j]->texture;j++)
6098                                 ;
6099                         continue;
6100                 }
6101                 if (rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED)
6102                 {
6103                         // transparent surfaces get pushed off into the transparent queue
6104                         const msurface_t *surface = surfacelist[i];
6105                         if (depthonly)
6106                                 continue;
6107                         tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
6108                         tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
6109                         tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
6110                         Matrix4x4_Transform(&rsurface.matrix, tempcenter, center);
6111                         R_MeshQueue_AddTransparent(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST ? r_view.origin : center, R_DrawSurface_TransparentCallback, ent, surface - rsurface.modelsurfaces, rsurface.rtlight);
6112                 }
6113                 else
6114                 {
6115                         // simply scan ahead until we find a different texture or lightmap state
6116                         for (;j < numsurfaces && texture == surfacelist[j]->texture && rsurface.uselightmaptexture == (surfacelist[j]->lightmaptexture != NULL);j++)
6117                                 ;
6118                         // render the range of surfaces
6119                         R_DrawTextureSurfaceList(j - i, surfacelist + i, writedepth, depthonly);
6120                 }
6121         }
6122 }
6123
6124 float locboxvertex3f[6*4*3] =
6125 {
6126         1,0,1, 1,0,0, 1,1,0, 1,1,1,
6127         0,1,1, 0,1,0, 0,0,0, 0,0,1,
6128         1,1,1, 1,1,0, 0,1,0, 0,1,1,
6129         0,0,1, 0,0,0, 1,0,0, 1,0,1,
6130         0,0,1, 1,0,1, 1,1,1, 0,1,1,
6131         1,0,0, 0,0,0, 0,1,0, 1,1,0
6132 };
6133
6134 int locboxelement3i[6*2*3] =
6135 {
6136          0, 1, 2, 0, 2, 3,
6137          4, 5, 6, 4, 6, 7,
6138          8, 9,10, 8,10,11,
6139         12,13,14, 12,14,15,
6140         16,17,18, 16,18,19,
6141         20,21,22, 20,22,23
6142 };
6143
6144 void R_DrawLoc_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
6145 {
6146         int i, j;
6147         cl_locnode_t *loc = (cl_locnode_t *)ent;
6148         vec3_t mins, size;
6149         float vertex3f[6*4*3];
6150         CHECKGLERROR
6151         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6152         GL_DepthMask(false);
6153         GL_DepthRange(0, 1);
6154         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
6155         GL_DepthTest(true);
6156         GL_CullFace(GL_NONE);
6157         R_Mesh_Matrix(&identitymatrix);
6158
6159         R_Mesh_VertexPointer(vertex3f, 0, 0);
6160         R_Mesh_ColorPointer(NULL, 0, 0);
6161         R_Mesh_ResetTextureState();
6162
6163         i = surfacelist[0];
6164         GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_view.colorscale,
6165                          ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_view.colorscale,
6166                          ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_view.colorscale,
6167                         surfacelist[0] < 0 ? 0.5f : 0.125f);
6168
6169         if (VectorCompare(loc->mins, loc->maxs))
6170         {
6171                 VectorSet(size, 2, 2, 2);
6172                 VectorMA(loc->mins, -0.5f, size, mins);
6173         }
6174         else
6175         {
6176                 VectorCopy(loc->mins, mins);
6177                 VectorSubtract(loc->maxs, loc->mins, size);
6178         }
6179
6180         for (i = 0;i < 6*4*3;)
6181                 for (j = 0;j < 3;j++, i++)
6182                         vertex3f[i] = mins[j] + size[j] * locboxvertex3f[i];
6183
6184         R_Mesh_Draw(0, 6*4, 6*2, locboxelement3i, 0, 0);
6185 }
6186
6187 void R_DrawLocs(void)
6188 {
6189         int index;
6190         cl_locnode_t *loc, *nearestloc;
6191         vec3_t center;
6192         nearestloc = CL_Locs_FindNearest(cl.movement_origin);
6193         for (loc = cl.locnodes, index = 0;loc;loc = loc->next, index++)
6194         {
6195                 VectorLerp(loc->mins, 0.5f, loc->maxs, center);
6196                 R_MeshQueue_AddTransparent(center, R_DrawLoc_Callback, (entity_render_t *)loc, loc == nearestloc ? -1 : index, NULL);
6197         }
6198 }
6199
6200 void R_DrawDebugModel(entity_render_t *ent)
6201 {
6202         int i, j, k, l, flagsmask;
6203         const int *elements;
6204         q3mbrush_t *brush;
6205         msurface_t *surface;
6206         model_t *model = ent->model;
6207         vec3_t v;
6208
6209         flagsmask = MATERIALFLAG_SKY | MATERIALFLAG_WATER | MATERIALFLAG_WALL;
6210
6211         R_Mesh_ColorPointer(NULL, 0, 0);
6212         R_Mesh_ResetTextureState();
6213         GL_DepthRange(0, 1);
6214         GL_DepthTest(!r_showdisabledepthtest.integer);
6215         GL_DepthMask(false);
6216         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6217
6218         if (r_showcollisionbrushes.value > 0 && model->brush.num_brushes)
6219         {
6220                 GL_PolygonOffset(r_refdef.polygonfactor + r_showcollisionbrushes_polygonfactor.value, r_refdef.polygonoffset + r_showcollisionbrushes_polygonoffset.value);
6221                 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
6222                 {
6223                         if (brush->colbrushf && brush->colbrushf->numtriangles)
6224                         {
6225                                 R_Mesh_VertexPointer(brush->colbrushf->points->v, 0, 0);
6226                                 GL_Color((i & 31) * (1.0f / 32.0f) * r_view.colorscale, ((i >> 5) & 31) * (1.0f / 32.0f) * r_view.colorscale, ((i >> 10) & 31) * (1.0f / 32.0f) * r_view.colorscale, r_showcollisionbrushes.value);
6227                                 R_Mesh_Draw(0, brush->colbrushf->numpoints, brush->colbrushf->numtriangles, brush->colbrushf->elements, 0, 0);
6228                         }
6229                 }
6230                 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
6231                 {
6232                         if (surface->num_collisiontriangles)
6233                         {
6234                                 R_Mesh_VertexPointer(surface->data_collisionvertex3f, 0, 0);
6235                                 GL_Color((i & 31) * (1.0f / 32.0f) * r_view.colorscale, ((i >> 5) & 31) * (1.0f / 32.0f) * r_view.colorscale, ((i >> 10) & 31) * (1.0f / 32.0f) * r_view.colorscale, r_showcollisionbrushes.value);
6236                                 R_Mesh_Draw(0, surface->num_collisionvertices, surface->num_collisiontriangles, surface->data_collisionelement3i, 0, 0);
6237                         }
6238                 }
6239         }
6240
6241         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
6242
6243         if (r_showtris.integer || r_shownormals.integer)
6244         {
6245                 if (r_showdisabledepthtest.integer)
6246                 {
6247                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6248                         GL_DepthMask(false);
6249                 }
6250                 else
6251                 {
6252                         GL_BlendFunc(GL_ONE, GL_ZERO);
6253                         GL_DepthMask(true);
6254                 }
6255                 for (i = 0, j = model->firstmodelsurface, surface = model->data_surfaces + j;i < model->nummodelsurfaces;i++, j++, surface++)
6256                 {
6257                         if (ent == r_refdef.worldentity && !r_viewcache.world_surfacevisible[j])
6258                                 continue;
6259                         rsurface.texture = surface->texture->currentframe;
6260                         if ((rsurface.texture->currentmaterialflags & flagsmask) && surface->num_triangles)
6261                         {
6262                                 RSurf_PrepareVerticesForBatch(true, true, 1, &surface);
6263                                 if (r_showtris.value > 0)
6264                                 {
6265                                         if (!rsurface.texture->currentlayers->depthmask)
6266                                                 GL_Color(r_view.colorscale, 0, 0, r_showtris.value);
6267                                         else if (ent == r_refdef.worldentity)
6268                                                 GL_Color(r_view.colorscale, r_view.colorscale, r_view.colorscale, r_showtris.value);
6269                                         else
6270                                                 GL_Color(0, r_view.colorscale, 0, r_showtris.value);
6271                                         elements = (ent->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle);
6272                                         CHECKGLERROR
6273                                         qglBegin(GL_LINES);
6274                                         for (k = 0;k < surface->num_triangles;k++, elements += 3)
6275                                         {
6276 #define GLVERTEXELEMENT(n) qglVertex3f(rsurface.vertex3f[elements[n]*3+0], rsurface.vertex3f[elements[n]*3+1], rsurface.vertex3f[elements[n]*3+2])
6277                                                 GLVERTEXELEMENT(0);GLVERTEXELEMENT(1);
6278                                                 GLVERTEXELEMENT(1);GLVERTEXELEMENT(2);
6279                                                 GLVERTEXELEMENT(2);GLVERTEXELEMENT(0);
6280                                         }
6281                                         qglEnd();
6282                                         CHECKGLERROR
6283                                 }
6284                                 if (r_shownormals.value > 0)
6285                                 {
6286                                         qglBegin(GL_LINES);
6287                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6288                                         {
6289                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6290                                                 GL_Color(r_view.colorscale, 0, 0, 1);
6291                                                 qglVertex3f(v[0], v[1], v[2]);
6292                                                 VectorMA(v, r_shownormals.value, rsurface.svector3f + l * 3, v);
6293                                                 GL_Color(r_view.colorscale, 1, 1, 1);
6294                                                 qglVertex3f(v[0], v[1], v[2]);
6295                                         }
6296                                         qglEnd();
6297                                         CHECKGLERROR
6298                                         qglBegin(GL_LINES);
6299                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6300                                         {
6301                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6302                                                 GL_Color(0, r_view.colorscale, 0, 1);
6303                                                 qglVertex3f(v[0], v[1], v[2]);
6304                                                 VectorMA(v, r_shownormals.value, rsurface.tvector3f + l * 3, v);
6305                                                 GL_Color(r_view.colorscale, 1, 1, 1);
6306                                                 qglVertex3f(v[0], v[1], v[2]);
6307                                         }
6308                                         qglEnd();
6309                                         CHECKGLERROR
6310                                         qglBegin(GL_LINES);
6311                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6312                                         {
6313                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6314                                                 GL_Color(0, 0, r_view.colorscale, 1);
6315                                                 qglVertex3f(v[0], v[1], v[2]);
6316                                                 VectorMA(v, r_shownormals.value, rsurface.normal3f + l * 3, v);
6317                                                 GL_Color(r_view.colorscale, 1, 1, 1);
6318                                                 qglVertex3f(v[0], v[1], v[2]);
6319                                         }
6320                                         qglEnd();
6321                                         CHECKGLERROR
6322                                 }
6323                         }
6324                 }
6325                 rsurface.texture = NULL;
6326         }
6327 }
6328
6329 extern void R_BuildLightMap(const entity_render_t *ent, msurface_t *surface);
6330 void R_DrawWorldSurfaces(qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes, qboolean debug)
6331 {
6332         int i, j, endj, f, flagsmask;
6333         msurface_t *surface;
6334         texture_t *t;
6335         model_t *model = r_refdef.worldmodel;
6336         const int maxsurfacelist = 1024;
6337         int numsurfacelist = 0;
6338         msurface_t *surfacelist[1024];
6339         if (model == NULL)
6340                 return;
6341
6342         RSurf_ActiveWorldEntity();
6343
6344         // update light styles on this submodel
6345         if (!skysurfaces && !depthonly && !addwaterplanes && model->brushq1.num_lightstyles && r_refdef.lightmapintensity > 0)
6346         {
6347                 model_brush_lightstyleinfo_t *style;
6348                 for (i = 0, style = model->brushq1.data_lightstyleinfo;i < model->brushq1.num_lightstyles;i++, style++)
6349                 {
6350                         if (style->value != r_refdef.lightstylevalue[style->style])
6351                         {
6352                                 msurface_t *surfaces = model->data_surfaces;
6353                                 int *list = style->surfacelist;
6354                                 style->value = r_refdef.lightstylevalue[style->style];
6355                                 for (j = 0;j < style->numsurfaces;j++)
6356                                         surfaces[list[j]].cached_dlight = true;
6357                         }
6358                 }
6359         }
6360
6361         R_UpdateAllTextureInfo(r_refdef.worldentity);
6362         flagsmask = addwaterplanes ? (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) : (skysurfaces ? MATERIALFLAG_SKY : (MATERIALFLAG_WATER | MATERIALFLAG_WALL));
6363
6364         if (debug)
6365         {
6366                 R_DrawDebugModel(r_refdef.worldentity);
6367                 return;
6368         }
6369
6370         f = 0;
6371         t = NULL;
6372         rsurface.uselightmaptexture = false;
6373         rsurface.texture = NULL;
6374         numsurfacelist = 0;
6375         j = model->firstmodelsurface;
6376         endj = j + model->nummodelsurfaces;
6377         while (j < endj)
6378         {
6379                 // quickly skip over non-visible surfaces
6380                 for (;j < endj && !r_viewcache.world_surfacevisible[j];j++)
6381                         ;
6382                 // quickly iterate over visible surfaces
6383                 for (;j < endj && r_viewcache.world_surfacevisible[j];j++)
6384                 {
6385                         // process this surface
6386                         surface = model->data_surfaces + j;
6387                         // if this surface fits the criteria, add it to the list
6388                         if (surface->num_triangles)
6389                         {
6390                                 // if lightmap parameters changed, rebuild lightmap texture
6391                                 if (surface->cached_dlight)
6392                                         R_BuildLightMap(r_refdef.worldentity, surface);
6393                                 // add face to draw list
6394                                 surfacelist[numsurfacelist++] = surface;
6395                                 r_refdef.stats.world_triangles += surface->num_triangles;
6396                                 if (numsurfacelist >= maxsurfacelist)
6397                                 {
6398                                         r_refdef.stats.world_surfaces += numsurfacelist;
6399                                         R_QueueSurfaceList(r_refdef.worldentity, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6400                                         numsurfacelist = 0;
6401                                 }
6402                         }
6403                 }
6404         }
6405         r_refdef.stats.world_surfaces += numsurfacelist;
6406         if (numsurfacelist)
6407                 R_QueueSurfaceList(r_refdef.worldentity, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6408         RSurf_CleanUp();
6409 }
6410
6411 void R_DrawModelSurfaces(entity_render_t *ent, qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes, qboolean debug)
6412 {
6413         int i, j, f, flagsmask;
6414         msurface_t *surface, *endsurface;
6415         texture_t *t;
6416         model_t *model = ent->model;
6417         const int maxsurfacelist = 1024;
6418         int numsurfacelist = 0;
6419         msurface_t *surfacelist[1024];
6420         if (model == NULL)
6421                 return;
6422
6423         // if the model is static it doesn't matter what value we give for
6424         // wantnormals and wanttangents, so this logic uses only rules applicable
6425         // to a model, knowing that they are meaningless otherwise
6426         if (ent == r_refdef.worldentity)
6427                 RSurf_ActiveWorldEntity();
6428         else if ((ent->effects & EF_FULLBRIGHT) || r_showsurfaces.integer || VectorLength2(ent->modellight_diffuse) < (1.0f / 256.0f))
6429                 RSurf_ActiveModelEntity(ent, false, false);
6430         else
6431                 RSurf_ActiveModelEntity(ent, true, r_glsl.integer && gl_support_fragment_shader && !depthonly);
6432
6433         // update light styles
6434         if (!skysurfaces && !depthonly && !addwaterplanes && model->brushq1.num_lightstyles && r_refdef.lightmapintensity > 0)
6435         {
6436                 model_brush_lightstyleinfo_t *style;
6437                 for (i = 0, style = model->brushq1.data_lightstyleinfo;i < model->brushq1.num_lightstyles;i++, style++)
6438                 {
6439                         if (style->value != r_refdef.lightstylevalue[style->style])
6440                         {
6441                                 msurface_t *surfaces = model->data_surfaces;
6442                                 int *list = style->surfacelist;
6443                                 style->value = r_refdef.lightstylevalue[style->style];
6444                                 for (j = 0;j < style->numsurfaces;j++)
6445                                         surfaces[list[j]].cached_dlight = true;
6446                         }
6447                 }
6448         }
6449
6450         R_UpdateAllTextureInfo(ent);
6451         flagsmask = addwaterplanes ? (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) : (skysurfaces ? MATERIALFLAG_SKY : (MATERIALFLAG_WATER | MATERIALFLAG_WALL));
6452
6453         if (debug)
6454         {
6455                 R_DrawDebugModel(ent);
6456                 return;
6457         }
6458
6459         f = 0;
6460         t = NULL;
6461         rsurface.uselightmaptexture = false;
6462         rsurface.texture = NULL;
6463         numsurfacelist = 0;
6464         surface = model->data_surfaces + model->firstmodelsurface;
6465         endsurface = surface + model->nummodelsurfaces;
6466         for (;surface < endsurface;surface++)
6467         {
6468                 // if this surface fits the criteria, add it to the list
6469                 if (surface->num_triangles)
6470                 {
6471                         // if lightmap parameters changed, rebuild lightmap texture
6472                         if (surface->cached_dlight)
6473                                 R_BuildLightMap(ent, surface);
6474                         // add face to draw list
6475                         surfacelist[numsurfacelist++] = surface;
6476                         r_refdef.stats.entities_triangles += surface->num_triangles;
6477                         if (numsurfacelist >= maxsurfacelist)
6478                         {
6479                                 r_refdef.stats.entities_surfaces += numsurfacelist;
6480                                 R_QueueSurfaceList(ent, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6481                                 numsurfacelist = 0;
6482                         }
6483                 }
6484         }
6485         r_refdef.stats.entities_surfaces += numsurfacelist;
6486         if (numsurfacelist)
6487                 R_QueueSurfaceList(ent, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6488         RSurf_CleanUp();
6489 }