gl_rmain.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // r_main.c
  21
  22 #include "quakedef.h"
  23 #include "cl_dyntexture.h"
  24 #include "r_shadow.h"
  25 #include "polygon.h"
  26 #include "image.h"
  27
  28 mempool_t *r_main_mempool;
  29 rtexturepool_t *r_main_texturepool;
  30
  31 //
  32 // screen size info
  33 //
  34 r_refdef_t r_refdef;
  35
  36 cvar_t r_depthfirst = {CVAR_SAVE, "r_depthfirst", "1", "renders a depth-only version of the scene before normal rendering begins to eliminate overdraw, values: 0 = off, 1 = world depth, 2 = world and model depth"};
  37 cvar_t r_nearclip = {0, "r_nearclip", "1", "distance from camera of nearclip plane" };
  38 cvar_t r_showbboxes = {0, "r_showbboxes", "0", "shows bounding boxes of server entities, value controls opacity scaling (1 = 10%,  10 = 100%)"};
  39 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)"};
  40 cvar_t r_showtris = {0, "r_showtris", "0", "shows triangle outlines, value controls brightness (can be above 1)"};
  41 cvar_t r_shownormals = {0, "r_shownormals", "0", "shows per-vertex surface normals and tangent vectors for bumpmapped lighting"};
  42 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"};
  43 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"};
  44 cvar_t r_showcollisionbrushes = {0, "r_showcollisionbrushes", "0", "draws collision brushes in quake3 maps (mode 1), mode 2 disables rendering of world (trippy!)"};
  45 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"};
  46 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"};
  47 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"};
  48 cvar_t r_drawportals = {0, "r_drawportals", "0", "shows portals (separating polygons) in world interior in quake1 maps"};
  49 cvar_t r_drawentities = {0, "r_drawentities","1", "draw entities (doors, players, projectiles, etc)"};
  50 cvar_t r_drawviewmodel = {0, "r_drawviewmodel","1", "draw your weapon model"};
  51 cvar_t r_cullentities_trace = {0, "r_cullentities_trace", "1", "probabistically cull invisible entities"};
  52 cvar_t r_cullentities_trace_samples = {0, "r_cullentities_trace_samples", "2", "number of samples to test for entity culling"};
  53 cvar_t r_cullentities_trace_enlarge = {0, "r_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  54 cvar_t r_cullentities_trace_delay = {0, "r_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  55 cvar_t r_speeds = {0, "r_speeds","0", "displays rendering statistics and per-subsystem timings"};
  56 cvar_t r_fullbright = {0, "r_fullbright","0", "makes map very bright and renders faster"};
  57 cvar_t r_wateralpha = {CVAR_SAVE, "r_wateralpha","1", "opacity of water polygons"};
  58 cvar_t r_dynamic = {CVAR_SAVE, "r_dynamic","1", "enables dynamic lights (rocket glow and such)"};
  59 cvar_t r_fullbrights = {CVAR_SAVE, "r_fullbrights", "1", "enables glowing pixels in quake textures (changes need r_restart to take effect)"};
  60 cvar_t r_shadows = {CVAR_SAVE, "r_shadows", "0", "casts fake stencil shadows from models onto the world (rtlights are unaffected by this)"};
  61 cvar_t r_shadows_throwdistance = {CVAR_SAVE, "r_shadows_throwdistance", "500", "how far to cast shadows from models"};
  62 cvar_t r_q1bsp_skymasking = {0, "r_q1bsp_skymasking", "1", "allows sky polygons in quake1 maps to obscure other geometry"};
  63 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"};
  64 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"};
  65 cvar_t r_fog_exp2 = {0, "r_fog_exp2", "0", "uses GL_EXP2 fog (as in Nehahra) rather than realistic GL_EXP fog"};
  66
  67 cvar_t gl_fogenable = {0, "gl_fogenable", "0", "nehahra fog enable (for Nehahra compatibility only)"};
  68 cvar_t gl_fogdensity = {0, "gl_fogdensity", "0.25", "nehahra fog density (recommend values below 0.1) (for Nehahra compatibility only)"};
  69 cvar_t gl_fogred = {0, "gl_fogred","0.3", "nehahra fog color red value (for Nehahra compatibility only)"};
  70 cvar_t gl_foggreen = {0, "gl_foggreen","0.3", "nehahra fog color green value (for Nehahra compatibility only)"};
  71 cvar_t gl_fogblue = {0, "gl_fogblue","0.3", "nehahra fog color blue value (for Nehahra compatibility only)"};
  72 cvar_t gl_fogstart = {0, "gl_fogstart", "0", "nehahra fog start distance (for Nehahra compatibility only)"};
  73 cvar_t gl_fogend = {0, "gl_fogend","0", "nehahra fog end distance (for Nehahra compatibility only)"};
  74 cvar_t gl_skyclip = {0, "gl_skyclip", "4608", "nehahra farclip distance - the real fog end (for Nehahra compatibility only)"};
  75
  76 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)"};
  77
  78 cvar_t r_glsl = {CVAR_SAVE, "r_glsl", "1", "enables use of OpenGL 2.0 pixel shaders for lighting"};
  79 cvar_t r_glsl_offsetmapping = {CVAR_SAVE, "r_glsl_offsetmapping", "0", "offset mapping effect (also known as parallax mapping or virtual displacement mapping)"};
  80 cvar_t r_glsl_offsetmapping_reliefmapping = {CVAR_SAVE, "r_glsl_offsetmapping_reliefmapping", "0", "relief mapping effect (higher quality)"};
  81 cvar_t r_glsl_offsetmapping_scale = {CVAR_SAVE, "r_glsl_offsetmapping_scale", "0.04", "how deep the offset mapping effect is"};
  82 cvar_t r_glsl_deluxemapping = {CVAR_SAVE, "r_glsl_deluxemapping", "1", "use per pixel lighting on deluxemap-compiled q3bsp maps (or a value of 2 forces deluxemap shading even without deluxemaps)"};
  83 cvar_t r_glsl_contrastboost = {CVAR_SAVE, "r_glsl_contrastboost", "1", "by how much to multiply the contrast in dark areas (1 is no change)"};
  84
  85 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)"};
  86 cvar_t r_water_clippingplanebias = {CVAR_SAVE, "r_water_clippingplanebias", "1", "a rather technical setting which avoids black pixels around water edges"};
  87 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"};
  88 cvar_t r_water_refractdistort = {CVAR_SAVE, "r_water_refractdistort", "0.01", "how much water refractions shimmer"};
  89 cvar_t r_water_reflectdistort = {CVAR_SAVE, "r_water_reflectdistort", "0.01", "how much water reflections shimmer"};
  90
  91 cvar_t r_lerpsprites = {CVAR_SAVE, "r_lerpsprites", "1", "enables animation smoothing on sprites (requires r_lerpmodels 1)"};
  92 cvar_t r_lerpmodels = {CVAR_SAVE, "r_lerpmodels", "1", "enables animation smoothing on models"};
  93 cvar_t r_lerplightstyles = {CVAR_SAVE, "r_lerplightstyles", "0", "enable animation smoothing on flickering lights"};
  94 cvar_t r_waterscroll = {CVAR_SAVE, "r_waterscroll", "1", "makes water scroll around, value controls how much"};
  95
  96 cvar_t r_bloom = {CVAR_SAVE, "r_bloom", "0", "enables bloom effect (makes bright pixels affect neighboring pixels)"};
  97 cvar_t r_bloom_colorscale = {CVAR_SAVE, "r_bloom_colorscale", "1", "how bright the glow is"};
  98 cvar_t r_bloom_brighten = {CVAR_SAVE, "r_bloom_brighten", "2", "how bright the glow is, after subtract/power"};
  99 cvar_t r_bloom_blur = {CVAR_SAVE, "r_bloom_blur", "4", "how large the glow is"};
 100 cvar_t r_bloom_resolution = {CVAR_SAVE, "r_bloom_resolution", "320", "what resolution to perform the bloom effect at (independent of screen resolution)"};
 101 cvar_t r_bloom_colorexponent = {CVAR_SAVE, "r_bloom_colorexponent", "1", "how exagerated the glow is"};
 102 cvar_t r_bloom_colorsubtract = {CVAR_SAVE, "r_bloom_colorsubtract", "0.125", "reduces bloom colors by a certain amount"};
 103
 104 cvar_t r_hdr = {CVAR_SAVE, "r_hdr", "0", "enables High Dynamic Range bloom effect (higher quality version of r_bloom)"};
 105 cvar_t r_hdr_scenebrightness = {CVAR_SAVE, "r_hdr_scenebrightness", "1", "global rendering brightness"};
 106 cvar_t r_hdr_glowintensity = {CVAR_SAVE, "r_hdr_glowintensity", "1", "how bright light emitting textures should appear"};
 107 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)"};
 108
 109 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"};
 110
 111 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"};
 112
 113 cvar_t gl_lightmaps = {0, "gl_lightmaps", "0", "draws only lightmaps, no texture (for level designers)"};
 114
 115 cvar_t r_test = {0, "r_test", "0", "internal development use only, leave it alone (usually does nothing anyway)"};
 116 cvar_t r_batchmode = {0, "r_batchmode", "1", "selects method of rendering multiple surfaces with one driver call (values are 0, 1, 2, etc...)"};
 117 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"};
 118 cvar_t r_track_sprites_flags = {CVAR_SAVE, "r_track_sprites_flags", "1", "1: Rotate sprites accodringly, 2: Make it a continuous rotation"};
 119 cvar_t r_track_sprites_scalew = {CVAR_SAVE, "r_track_sprites_scalew", "1", "width scaling of tracked sprites"};
 120 cvar_t r_track_sprites_scaleh = {CVAR_SAVE, "r_track_sprites_scaleh", "1", "height scaling of tracked sprites"};
 121
 122 extern qboolean v_flipped_state;
 123
 124 typedef struct r_glsl_bloomshader_s
 125 {
 126         int program;
 127         int loc_Texture_Bloom;
 128 }
 129 r_glsl_bloomshader_t;
 130
 131 static struct r_bloomstate_s
 132 {
 133         qboolean enabled;
 134         qboolean hdr;
 135
 136         int bloomwidth, bloomheight;
 137
 138         int screentexturewidth, screentextureheight;
 139         rtexture_t *texture_screen;
 140
 141         int bloomtexturewidth, bloomtextureheight;
 142         rtexture_t *texture_bloom;
 143
 144         r_glsl_bloomshader_t *shader;
 145
 146         // arrays for rendering the screen passes
 147         float screentexcoord2f[8];
 148         float bloomtexcoord2f[8];
 149         float offsettexcoord2f[8];
 150 }
 151 r_bloomstate;
 152
 153 typedef struct r_waterstate_waterplane_s
 154 {
 155         rtexture_t *texture_refraction;
 156         rtexture_t *texture_reflection;
 157         mplane_t plane;
 158         int materialflags; // combined flags of all water surfaces on this plane
 159         unsigned char pvsbits[(32768+7)>>3]; // FIXME: buffer overflow on huge maps
 160         qboolean pvsvalid;
 161 }
 162 r_waterstate_waterplane_t;
 163
 164 #define MAX_WATERPLANES 16
 165
 166 static struct r_waterstate_s
 167 {
 168         qboolean enabled;
 169
 170         qboolean renderingscene; // true while rendering a refraction or reflection texture, disables water surfaces
 171
 172         int waterwidth, waterheight;
 173         int texturewidth, textureheight;
 174
 175         int maxwaterplanes; // same as MAX_WATERPLANES
 176         int numwaterplanes;
 177         r_waterstate_waterplane_t waterplanes[MAX_WATERPLANES];
 178
 179         float screenscale[2];
 180         float screencenter[2];
 181 }
 182 r_waterstate;
 183
 184 // shadow volume bsp struct with automatically growing nodes buffer
 185 svbsp_t r_svbsp;
 186
 187 rtexture_t *r_texture_blanknormalmap;
 188 rtexture_t *r_texture_white;
 189 rtexture_t *r_texture_grey128;
 190 rtexture_t *r_texture_black;
 191 rtexture_t *r_texture_notexture;
 192 rtexture_t *r_texture_whitecube;
 193 rtexture_t *r_texture_normalizationcube;
 194 rtexture_t *r_texture_fogattenuation;
 195 //rtexture_t *r_texture_fogintensity;
 196
 197 char r_qwskincache[MAX_SCOREBOARD][MAX_QPATH];
 198 skinframe_t *r_qwskincache_skinframe[MAX_SCOREBOARD];
 199
 200 // vertex coordinates for a quad that covers the screen exactly
 201 const static float r_screenvertex3f[12] =
 202 {
 203         0, 0, 0,
 204         1, 0, 0,
 205         1, 1, 0,
 206         0, 1, 0
 207 };
 208
 209 extern void R_DrawModelShadows(void);
 210
 211 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
 212 {
 213         int i;
 214         for (i = 0;i < verts;i++)
 215         {
 216                 out[0] = in[0] * r;
 217                 out[1] = in[1] * g;
 218                 out[2] = in[2] * b;
 219                 out[3] = in[3];
 220                 in += 4;
 221                 out += 4;
 222         }
 223 }
 224
 225 void R_FillColors(float *out, int verts, float r, float g, float b, float a)
 226 {
 227         int i;
 228         for (i = 0;i < verts;i++)
 229         {
 230                 out[0] = r;
 231                 out[1] = g;
 232                 out[2] = b;
 233                 out[3] = a;
 234                 out += 4;
 235         }
 236 }
 237
 238 // FIXME: move this to client?
 239 void FOG_clear(void)
 240 {
 241         if (gamemode == GAME_NEHAHRA)
 242         {
 243                 Cvar_Set("gl_fogenable", "0");
 244                 Cvar_Set("gl_fogdensity", "0.2");
 245                 Cvar_Set("gl_fogred", "0.3");
 246                 Cvar_Set("gl_foggreen", "0.3");
 247                 Cvar_Set("gl_fogblue", "0.3");
 248         }
 249         r_refdef.fog_density = 0;
 250         r_refdef.fog_red = 0;
 251         r_refdef.fog_green = 0;
 252         r_refdef.fog_blue = 0;
 253         r_refdef.fog_alpha = 1;
 254         r_refdef.fog_start = 0;
 255         r_refdef.fog_end = 0;
 256 }
 257
 258 float FogForDistance(vec_t dist)
 259 {
 260         unsigned int fogmasktableindex = (unsigned int)(dist * r_refdef.fogmasktabledistmultiplier);
 261         return r_refdef.fogmasktable[min(fogmasktableindex, FOGMASKTABLEWIDTH - 1)];
 262 }
 263
 264 float FogPoint_World(const vec3_t p)
 265 {
 266         return FogForDistance(VectorDistance((p), r_refdef.view.origin));
 267 }
 268
 269 float FogPoint_Model(const vec3_t p)
 270 {
 271         return FogForDistance(VectorDistance((p), rsurface.modelorg));
 272 }
 273
 274 static void R_BuildBlankTextures(void)
 275 {
 276         unsigned char data[4];
 277         data[2] = 128; // normal X
 278         data[1] = 128; // normal Y
 279         data[0] = 255; // normal Z
 280         data[3] = 128; // height
 281         r_texture_blanknormalmap = R_LoadTexture2D(r_main_texturepool, "blankbump", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 282         data[0] = 255;
 283         data[1] = 255;
 284         data[2] = 255;
 285         data[3] = 255;
 286         r_texture_white = R_LoadTexture2D(r_main_texturepool, "blankwhite", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 287         data[0] = 128;
 288         data[1] = 128;
 289         data[2] = 128;
 290         data[3] = 255;
 291         r_texture_grey128 = R_LoadTexture2D(r_main_texturepool, "blankgrey128", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 292         data[0] = 0;
 293         data[1] = 0;
 294         data[2] = 0;
 295         data[3] = 255;
 296         r_texture_black = R_LoadTexture2D(r_main_texturepool, "blankblack", 1, 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_PERSISTENT, NULL);
 297 }
 298
 299 static void R_BuildNoTexture(void)
 300 {
 301         int x, y;
 302         unsigned char pix[16][16][4];
 303         // this makes a light grey/dark grey checkerboard texture
 304         for (y = 0;y < 16;y++)
 305         {
 306                 for (x = 0;x < 16;x++)
 307                 {
 308                         if ((y < 8) ^ (x < 8))
 309                         {
 310                                 pix[y][x][0] = 128;
 311                                 pix[y][x][1] = 128;
 312                                 pix[y][x][2] = 128;
 313                                 pix[y][x][3] = 255;
 314                         }
 315                         else
 316                         {
 317                                 pix[y][x][0] = 64;
 318                                 pix[y][x][1] = 64;
 319                                 pix[y][x][2] = 64;
 320                                 pix[y][x][3] = 255;
 321                         }
 322                 }
 323         }
 324         r_texture_notexture = R_LoadTexture2D(r_main_texturepool, "notexture", 16, 16, &pix[0][0][0], TEXTYPE_BGRA, TEXF_MIPMAP | TEXF_PERSISTENT, NULL);
 325 }
 326
 327 static void R_BuildWhiteCube(void)
 328 {
 329         unsigned char data[6*1*1*4];
 330         memset(data, 255, sizeof(data));
 331         r_texture_whitecube = R_LoadTextureCubeMap(r_main_texturepool, "whitecube", 1, data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_PERSISTENT, NULL);
 332 }
 333
 334 static void R_BuildNormalizationCube(void)
 335 {
 336         int x, y, side;
 337         vec3_t v;
 338         vec_t s, t, intensity;
 339 #define NORMSIZE 64
 340         unsigned char data[6][NORMSIZE][NORMSIZE][4];
 341         for (side = 0;side < 6;side++)
 342         {
 343                 for (y = 0;y < NORMSIZE;y++)
 344                 {
 345                         for (x = 0;x < NORMSIZE;x++)
 346                         {
 347                                 s = (x + 0.5f) * (2.0f / NORMSIZE) - 1.0f;
 348                                 t = (y + 0.5f) * (2.0f / NORMSIZE) - 1.0f;
 349                                 switch(side)
 350                                 {
 351                                 default:
 352                                 case 0:
 353                                         v[0] = 1;
 354                                         v[1] = -t;
 355                                         v[2] = -s;
 356                                         break;
 357                                 case 1:
 358                                         v[0] = -1;
 359                                         v[1] = -t;
 360                                         v[2] = s;
 361                                         break;
 362                                 case 2:
 363                                         v[0] = s;
 364                                         v[1] = 1;
 365                                         v[2] = t;
 366                                         break;
 367                                 case 3:
 368                                         v[0] = s;
 369                                         v[1] = -1;
 370                                         v[2] = -t;
 371                                         break;
 372                                 case 4:
 373                                         v[0] = s;
 374                                         v[1] = -t;
 375                                         v[2] = 1;
 376                                         break;
 377                                 case 5:
 378                                         v[0] = -s;
 379                                         v[1] = -t;
 380                                         v[2] = -1;
 381                                         break;
 382                                 }
 383                                 intensity = 127.0f / sqrt(DotProduct(v, v));
 384                                 data[side][y][x][2] = (unsigned char)(128.0f + intensity * v[0]);
 385                                 data[side][y][x][1] = (unsigned char)(128.0f + intensity * v[1]);
 386                                 data[side][y][x][0] = (unsigned char)(128.0f + intensity * v[2]);
 387                                 data[side][y][x][3] = 255;
 388                         }
 389                 }
 390         }
 391         r_texture_normalizationcube = R_LoadTextureCubeMap(r_main_texturepool, "normalcube", NORMSIZE, &data[0][0][0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_PERSISTENT, NULL);
 392 }
 393
 394 static void R_BuildFogTexture(void)
 395 {
 396         int x, b;
 397 #define FOGWIDTH 256
 398         unsigned char data1[FOGWIDTH][4];
 399         //unsigned char data2[FOGWIDTH][4];
 400         double d, r, alpha;
 401
 402         r_refdef.fogmasktable_start = r_refdef.fog_start;
 403         r_refdef.fogmasktable_alpha = r_refdef.fog_alpha;
 404         r_refdef.fogmasktable_range = r_refdef.fogrange;
 405         r_refdef.fogmasktable_density = r_refdef.fog_density;
 406
 407         r = r_refdef.fogmasktable_range / FOGMASKTABLEWIDTH;
 408         for (x = 0;x < FOGMASKTABLEWIDTH;x++)
 409         {
 410                 d = (x * r - r_refdef.fogmasktable_start);
 411                 if(developer.integer >= 100)
 412                         Con_Printf("%f ", d);
 413                 d = max(0, d);
 414                 if (r_fog_exp2.integer)
 415                         alpha = exp(-r_refdef.fogmasktable_density * r_refdef.fogmasktable_density * 0.0001 * d * d);
 416                 else
 417                         alpha = exp(-r_refdef.fogmasktable_density * 0.004 * d);
 418                 if(developer.integer >= 100)
 419                         Con_Printf(" : %f ", alpha);
 420                 alpha = 1 - (1 - alpha) * r_refdef.fogmasktable_alpha;
 421                 if(developer.integer >= 100)
 422                         Con_Printf(" = %f\n", alpha);
 423                 r_refdef.fogmasktable[x] = bound(0, alpha, 1);
 424         }
 425
 426         for (x = 0;x < FOGWIDTH;x++)
 427         {
 428                 b = (int)(r_refdef.fogmasktable[x * (FOGMASKTABLEWIDTH - 1) / (FOGWIDTH - 1)] * 255);
 429                 data1[x][0] = b;
 430                 data1[x][1] = b;
 431                 data1[x][2] = b;
 432                 data1[x][3] = 255;
 433                 //data2[x][0] = 255 - b;
 434                 //data2[x][1] = 255 - b;
 435                 //data2[x][2] = 255 - b;
 436                 //data2[x][3] = 255;
 437         }
 438         if (r_texture_fogattenuation)
 439         {
 440                 R_UpdateTexture(r_texture_fogattenuation, &data1[0][0], 0, 0, FOGWIDTH, 1);
 441                 //R_UpdateTexture(r_texture_fogattenuation, &data2[0][0], 0, 0, FOGWIDTH, 1);
 442         }
 443         else
 444         {
 445                 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);
 446                 //r_texture_fogintensity = R_LoadTexture2D(r_main_texturepool, "fogintensity", FOGWIDTH, 1, &data2[0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_FORCELINEAR | TEXF_CLAMP, NULL);
 447         }
 448 }
 449
 450 static const char *builtinshaderstring =
 451 "// ambient+diffuse+specular+normalmap+attenuation+cubemap+fog shader\n"
 452 "// written by Forest 'LordHavoc' Hale\n"
 453 "\n"
 454 "// common definitions between vertex shader and fragment shader:\n"
 455 "\n"
 456 "#ifdef __GLSL_CG_DATA_TYPES\n"
 457 "# define myhalf half\n"
 458 "# define myhalf2 half2\n"
 459 "# define myhalf3 half3\n"
 460 "# define myhalf4 half4\n"
 461 "#else\n"
 462 "# define myhalf float\n"
 463 "# define myhalf2 vec2\n"
 464 "# define myhalf3 vec3\n"
 465 "# define myhalf4 vec4\n"
 466 "#endif\n"
 467 "\n"
 468 "varying vec2 TexCoord;\n"
 469 "varying vec2 TexCoordLightmap;\n"
 470 "\n"
 471 "//#ifdef MODE_LIGHTSOURCE\n"
 472 "varying vec3 CubeVector;\n"
 473 "//#endif\n"
 474 "\n"
 475 "//#ifdef MODE_LIGHTSOURCE\n"
 476 "varying vec3 LightVector;\n"
 477 "//#else\n"
 478 "//# ifdef MODE_LIGHTDIRECTION\n"
 479 "//varying vec3 LightVector;\n"
 480 "//# endif\n"
 481 "//#endif\n"
 482 "\n"
 483 "varying vec3 EyeVector;\n"
 484 "//#ifdef USEFOG\n"
 485 "varying vec3 EyeVectorModelSpace;\n"
 486 "//#endif\n"
 487 "\n"
 488 "varying vec3 VectorS; // direction of S texcoord (sometimes crudely called tangent)\n"
 489 "varying vec3 VectorT; // direction of T texcoord (sometimes crudely called binormal)\n"
 490 "varying vec3 VectorR; // direction of R texcoord (surface normal)\n"
 491 "\n"
 492 "//#ifdef MODE_WATER\n"
 493 "varying vec4 ModelViewProjectionPosition;\n"
 494 "//#else\n"
 495 "//# ifdef MODE_REFRACTION\n"
 496 "//varying vec4 ModelViewProjectionPosition;\n"
 497 "//# else\n"
 498 "//#  ifdef USEREFLECTION\n"
 499 "//varying vec4 ModelViewProjectionPosition;\n"
 500 "//#  endif\n"
 501 "//# endif\n"
 502 "//#endif\n"
 503 "\n"
 504 "\n"
 505 "\n"
 506 "\n"
 507 "\n"
 508 "// vertex shader specific:\n"
 509 "#ifdef VERTEX_SHADER\n"
 510 "\n"
 511 "uniform vec3 LightPosition;\n"
 512 "uniform vec3 EyePosition;\n"
 513 "uniform vec3 LightDir;\n"
 514 "\n"
 515 "// TODO: get rid of tangentt (texcoord2) and use a crossproduct to regenerate it from tangents (texcoord1) and normal (texcoord3)\n"
 516 "\n"
 517 "void main(void)\n"
 518 "{\n"
 519 "       gl_FrontColor = gl_Color;\n"
 520 "       // copy the surface texcoord\n"
 521 "       TexCoord = vec2(gl_TextureMatrix[0] * gl_MultiTexCoord0);\n"
 522 "#ifndef MODE_LIGHTSOURCE\n"
 523 "# ifndef MODE_LIGHTDIRECTION\n"
 524 "       TexCoordLightmap = vec2(gl_MultiTexCoord4);\n"
 525 "# endif\n"
 526 "#endif\n"
 527 "\n"
 528 "#ifdef MODE_LIGHTSOURCE\n"
 529 "       // transform vertex position into light attenuation/cubemap space\n"
 530 "       // (-1 to +1 across the light box)\n"
 531 "       CubeVector = vec3(gl_TextureMatrix[3] * gl_Vertex);\n"
 532 "\n"
 533 "       // transform unnormalized light direction into tangent space\n"
 534 "       // (we use unnormalized to ensure that it interpolates correctly and then\n"
 535 "       //  normalize it per pixel)\n"
 536 "       vec3 lightminusvertex = LightPosition - gl_Vertex.xyz;\n"
 537 "       LightVector.x = dot(lightminusvertex, gl_MultiTexCoord1.xyz);\n"
 538 "       LightVector.y = dot(lightminusvertex, gl_MultiTexCoord2.xyz);\n"
 539 "       LightVector.z = dot(lightminusvertex, gl_MultiTexCoord3.xyz);\n"
 540 "#endif\n"
 541 "\n"
 542 "#ifdef MODE_LIGHTDIRECTION\n"
 543 "       LightVector.x = dot(LightDir, gl_MultiTexCoord1.xyz);\n"
 544 "       LightVector.y = dot(LightDir, gl_MultiTexCoord2.xyz);\n"
 545 "       LightVector.z = dot(LightDir, gl_MultiTexCoord3.xyz);\n"
 546 "#endif\n"
 547 "\n"
 548 "       // transform unnormalized eye direction into tangent space\n"
 549 "#ifndef USEFOG\n"
 550 "       vec3 EyeVectorModelSpace;\n"
 551 "#endif\n"
 552 "       EyeVectorModelSpace = EyePosition - gl_Vertex.xyz;\n"
 553 "       EyeVector.x = dot(EyeVectorModelSpace, gl_MultiTexCoord1.xyz);\n"
 554 "       EyeVector.y = dot(EyeVectorModelSpace, gl_MultiTexCoord2.xyz);\n"
 555 "       EyeVector.z = dot(EyeVectorModelSpace, gl_MultiTexCoord3.xyz);\n"
 556 "\n"
 557 "#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 558 "       VectorS = gl_MultiTexCoord1.xyz;\n"
 559 "       VectorT = gl_MultiTexCoord2.xyz;\n"
 560 "       VectorR = gl_MultiTexCoord3.xyz;\n"
 561 "#endif\n"
 562 "\n"
 563 "//#if defined(MODE_WATER) || defined(MODE_REFRACTION) || defined(USEREFLECTION)\n"
 564 "//     ModelViewProjectionPosition = gl_Vertex * gl_ModelViewProjectionMatrix;\n"
 565 "//     //ModelViewProjectionPosition_svector = (gl_Vertex + vec4(gl_MultiTexCoord1.xyz, 0)) * gl_ModelViewProjectionMatrix - ModelViewProjectionPosition;\n"
 566 "//     //ModelViewProjectionPosition_tvector = (gl_Vertex + vec4(gl_MultiTexCoord2.xyz, 0)) * gl_ModelViewProjectionMatrix - ModelViewProjectionPosition;\n"
 567 "//#endif\n"
 568 "\n"
 569 "// transform vertex to camera space, using ftransform to match non-VS\n"
 570 "       // rendering\n"
 571 "       gl_Position = ftransform();\n"
 572 "\n"
 573 "#ifdef MODE_WATER\n"
 574 "       ModelViewProjectionPosition = gl_Position;\n"
 575 "#endif\n"
 576 "#ifdef MODE_REFRACTION\n"
 577 "       ModelViewProjectionPosition = gl_Position;\n"
 578 "#endif\n"
 579 "#ifdef USEREFLECTION\n"
 580 "       ModelViewProjectionPosition = gl_Position;\n"
 581 "#endif\n"
 582 "}\n"
 583 "\n"
 584 "#endif // VERTEX_SHADER\n"
 585 "\n"
 586 "\n"
 587 "\n"
 588 "\n"
 589 "// fragment shader specific:\n"
 590 "#ifdef FRAGMENT_SHADER\n"
 591 "\n"
 592 "// 13 textures, we can only use up to 16 on DX9-class hardware\n"
 593 "uniform sampler2D Texture_Normal;\n"
 594 "uniform sampler2D Texture_Color;\n"
 595 "uniform sampler2D Texture_Gloss;\n"
 596 "uniform samplerCube Texture_Cube;\n"
 597 "uniform sampler2D Texture_Attenuation;\n"
 598 "uniform sampler2D Texture_FogMask;\n"
 599 "uniform sampler2D Texture_Pants;\n"
 600 "uniform sampler2D Texture_Shirt;\n"
 601 "uniform sampler2D Texture_Lightmap;\n"
 602 "uniform sampler2D Texture_Deluxemap;\n"
 603 "uniform sampler2D Texture_Glow;\n"
 604 "uniform sampler2D Texture_Reflection;\n"
 605 "uniform sampler2D Texture_Refraction;\n"
 606 "\n"
 607 "uniform myhalf3 LightColor;\n"
 608 "uniform myhalf3 AmbientColor;\n"
 609 "uniform myhalf3 DiffuseColor;\n"
 610 "uniform myhalf3 SpecularColor;\n"
 611 "uniform myhalf3 Color_Pants;\n"
 612 "uniform myhalf3 Color_Shirt;\n"
 613 "uniform myhalf3 FogColor;\n"
 614 "\n"
 615 "uniform myhalf4 TintColor;\n"
 616 "\n"
 617 "\n"
 618 "//#ifdef MODE_WATER\n"
 619 "uniform vec4 DistortScaleRefractReflect;\n"
 620 "uniform vec4 ScreenScaleRefractReflect;\n"
 621 "uniform vec4 ScreenCenterRefractReflect;\n"
 622 "uniform myhalf4 RefractColor;\n"
 623 "uniform myhalf4 ReflectColor;\n"
 624 "uniform myhalf ReflectFactor;\n"
 625 "uniform myhalf ReflectOffset;\n"
 626 "//#else\n"
 627 "//# ifdef MODE_REFRACTION\n"
 628 "//uniform vec4 DistortScaleRefractReflect;\n"
 629 "//uniform vec4 ScreenScaleRefractReflect;\n"
 630 "//uniform vec4 ScreenCenterRefractReflect;\n"
 631 "//uniform myhalf4 RefractColor;\n"
 632 "//#  ifdef USEREFLECTION\n"
 633 "//uniform myhalf4 ReflectColor;\n"
 634 "//#  endif\n"
 635 "//# else\n"
 636 "//#  ifdef USEREFLECTION\n"
 637 "//uniform vec4 DistortScaleRefractReflect;\n"
 638 "//uniform vec4 ScreenScaleRefractReflect;\n"
 639 "//uniform vec4 ScreenCenterRefractReflect;\n"
 640 "//uniform myhalf4 ReflectColor;\n"
 641 "//#  endif\n"
 642 "//# endif\n"
 643 "//#endif\n"
 644 "\n"
 645 "uniform myhalf GlowScale;\n"
 646 "uniform myhalf SceneBrightness;\n"
 647 "#ifdef USECONTRASTBOOST\n"
 648 "uniform myhalf ContrastBoostCoeff;\n"
 649 "#endif\n"
 650 "\n"
 651 "uniform float OffsetMapping_Scale;\n"
 652 "uniform float OffsetMapping_Bias;\n"
 653 "uniform float FogRangeRecip;\n"
 654 "\n"
 655 "uniform myhalf AmbientScale;\n"
 656 "uniform myhalf DiffuseScale;\n"
 657 "uniform myhalf SpecularScale;\n"
 658 "uniform myhalf SpecularPower;\n"
 659 "\n"
 660 "#ifdef USEOFFSETMAPPING\n"
 661 "vec2 OffsetMapping(vec2 TexCoord)\n"
 662 "{\n"
 663 "#ifdef USEOFFSETMAPPING_RELIEFMAPPING\n"
 664 "       // 14 sample relief mapping: linear search and then binary search\n"
 665 "       // this basically steps forward a small amount repeatedly until it finds\n"
 666 "       // itself inside solid, then jitters forward and back using decreasing\n"
 667 "       // amounts to find the impact\n"
 668 "       //vec3 OffsetVector = vec3(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1), -1);\n"
 669 "       //vec3 OffsetVector = vec3(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1), -1);\n"
 670 "       vec3 OffsetVector = vec3(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1), -1);\n"
 671 "       vec3 RT = vec3(TexCoord, 1);\n"
 672 "       OffsetVector *= 0.1;\n"
 673 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 674 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\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)          - 0.5);\n"
 683 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.5    - 0.25);\n"
 684 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.25   - 0.125);\n"
 685 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.125  - 0.0625);\n"
 686 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.0625 - 0.03125);\n"
 687 "       return RT.xy;\n"
 688 "#else\n"
 689 "       // 3 sample offset mapping (only 3 samples because of ATI Radeon 9500-9800/X300 limits)\n"
 690 "       // this basically moves forward the full distance, and then backs up based\n"
 691 "       // on height of samples\n"
 692 "       //vec2 OffsetVector = vec2(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1));\n"
 693 "       //vec2 OffsetVector = vec2(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1));\n"
 694 "       vec2 OffsetVector = vec2(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1));\n"
 695 "       TexCoord += OffsetVector;\n"
 696 "       OffsetVector *= 0.333;\n"
 697 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 698 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 699 "       TexCoord -= OffsetVector * texture2D(Texture_Normal, TexCoord).a;\n"
 700 "       return TexCoord;\n"
 701 "#endif\n"
 702 "}\n"
 703 "#endif // USEOFFSETMAPPING\n"
 704 "\n"
 705 "#ifdef MODE_WATER\n"
 706 "\n"
 707 "// water pass\n"
 708 "void main(void)\n"
 709 "{\n"
 710 "#ifdef USEOFFSETMAPPING\n"
 711 "       // apply offsetmapping\n"
 712 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 713 "#define TexCoord TexCoordOffset\n"
 714 "#endif\n"
 715 "\n"
 716 "       vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w);\n"
 717 "       //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
 718 "       vec4 ScreenTexCoord = ModelViewProjectionPosition.xyxy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect + vec2(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xyxy * DistortScaleRefractReflect;\n"
 719 "       float Fresnel = pow(min(1.0, 1.0 - float(normalize(EyeVector).z)), 5.0) * ReflectFactor + ReflectOffset;\n"
 720 "       gl_FragColor = mix(texture2D(Texture_Refraction, ScreenTexCoord.xy) * RefractColor, texture2D(Texture_Reflection, ScreenTexCoord.zw) * ReflectColor, Fresnel);\n"
 721 "}\n"
 722 "\n"
 723 "#else // MODE_WATER\n"
 724 "#ifdef MODE_REFRACTION\n"
 725 "\n"
 726 "// refraction pass\n"
 727 "void main(void)\n"
 728 "{\n"
 729 "#ifdef USEOFFSETMAPPING\n"
 730 "       // apply offsetmapping\n"
 731 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 732 "#define TexCoord TexCoordOffset\n"
 733 "#endif\n"
 734 "\n"
 735 "       vec2 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect.xy * (1.0 / ModelViewProjectionPosition.w);\n"
 736 "       //vec2 ScreenTexCoord = (ModelViewProjectionPosition.xy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xy * DistortScaleRefractReflect.xy * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy;\n"
 737 "       vec2 ScreenTexCoord = ModelViewProjectionPosition.xy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy + vec2(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.xy;\n"
 738 "       gl_FragColor = texture2D(Texture_Refraction, ScreenTexCoord) * RefractColor;\n"
 739 "}\n"
 740 "\n"
 741 "#else // MODE_REFRACTION\n"
 742 "void main(void)\n"
 743 "{\n"
 744 "#ifdef USEOFFSETMAPPING\n"
 745 "       // apply offsetmapping\n"
 746 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 747 "#define TexCoord TexCoordOffset\n"
 748 "#endif\n"
 749 "\n"
 750 "       // combine the diffuse textures (base, pants, shirt)\n"
 751 "       myhalf4 color = myhalf4(texture2D(Texture_Color, TexCoord));\n"
 752 "#ifdef USECOLORMAPPING\n"
 753 "       color.rgb += myhalf3(texture2D(Texture_Pants, TexCoord)) * Color_Pants + myhalf3(texture2D(Texture_Shirt, TexCoord)) * Color_Shirt;\n"
 754 "#endif\n"
 755 "\n"
 756 "\n"
 757 "\n"
 758 "\n"
 759 "#ifdef MODE_LIGHTSOURCE\n"
 760 "       // light source\n"
 761 "\n"
 762 "       // calculate surface normal, light normal, and specular normal\n"
 763 "       // compute color intensity for the two textures (colormap and glossmap)\n"
 764 "       // scale by light color and attenuation as efficiently as possible\n"
 765 "       // (do as much scalar math as possible rather than vector math)\n"
 766 "# ifdef USESPECULAR\n"
 767 "       myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5));\n"
 768 "       myhalf3 diffusenormal = myhalf3(normalize(LightVector));\n"
 769 "       myhalf3 specularnormal = normalize(diffusenormal + myhalf3(normalize(EyeVector)));\n"
 770 "\n"
 771 "       // calculate directional shading\n"
 772 "       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)) * myhalf3(texture2D(Texture_Gloss, TexCoord)));\n"
 773 "# else\n"
 774 "#  ifdef USEDIFFUSE\n"
 775 "       myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5));\n"
 776 "       myhalf3 diffusenormal = myhalf3(normalize(LightVector));\n"
 777 "\n"
 778 "       // calculate directional shading\n"
 779 "       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"
 780 "#  else\n"
 781 "       // calculate directionless shading\n"
 782 "       color.rgb = color.rgb * LightColor * myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0)));\n"
 783 "#  endif\n"
 784 "# endif\n"
 785 "\n"
 786 "# ifdef USECUBEFILTER\n"
 787 "       // apply light cubemap filter\n"
 788 "       //color.rgb *= normalize(CubeVector) * 0.5 + 0.5;//vec3(textureCube(Texture_Cube, CubeVector));\n"
 789 "       color.rgb *= myhalf3(textureCube(Texture_Cube, CubeVector));\n"
 790 "# endif\n"
 791 "#endif // MODE_LIGHTSOURCE\n"
 792 "\n"
 793 "\n"
 794 "\n"
 795 "\n"
 796 "#ifdef MODE_LIGHTDIRECTION\n"
 797 "       // directional model lighting\n"
 798 "# ifdef USESPECULAR\n"
 799 "       // get the surface normal and light normal\n"
 800 "       myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5));\n"
 801 "       myhalf3 diffusenormal = myhalf3(LightVector);\n"
 802 "\n"
 803 "       // calculate directional shading\n"
 804 "       color.rgb *= AmbientColor + DiffuseColor * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0));\n"
 805 "       myhalf3 specularnormal = normalize(diffusenormal + myhalf3(normalize(EyeVector)));\n"
 806 "       color.rgb += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularColor * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 807 "# else\n"
 808 "#  ifdef USEDIFFUSE\n"
 809 "       // get the surface normal and light normal\n"
 810 "       myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5));\n"
 811 "       myhalf3 diffusenormal = myhalf3(LightVector);\n"
 812 "\n"
 813 "       // calculate directional shading\n"
 814 "       color.rgb *= AmbientColor + DiffuseColor * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0));\n"
 815 "#  else\n"
 816 "       color.rgb *= AmbientColor;\n"
 817 "#  endif\n"
 818 "# endif\n"
 819 "\n"
 820 "       color.a *= TintColor.a;\n"
 821 "#endif // MODE_LIGHTDIRECTION\n"
 822 "\n"
 823 "\n"
 824 "\n"
 825 "\n"
 826 "#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 827 "       // deluxemap lightmapping using light vectors in modelspace (evil q3map2)\n"
 828 "\n"
 829 "       // get the surface normal and light normal\n"
 830 "       myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5));\n"
 831 "\n"
 832 "       myhalf3 diffusenormal_modelspace = myhalf3(texture2D(Texture_Deluxemap, TexCoordLightmap)) - myhalf3(0.5);\n"
 833 "       myhalf3 diffusenormal = normalize(myhalf3(dot(diffusenormal_modelspace, myhalf3(VectorS)), dot(diffusenormal_modelspace, myhalf3(VectorT)), dot(diffusenormal_modelspace, myhalf3(VectorR))));\n"
 834 "       // calculate directional shading\n"
 835 "       myhalf3 tempcolor = color.rgb * (DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)));\n"
 836 "# ifdef USESPECULAR\n"
 837 "       myhalf3 specularnormal = myhalf3(normalize(diffusenormal + myhalf3(normalize(EyeVector))));\n"
 838 "       tempcolor += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 839 "# endif\n"
 840 "\n"
 841 "       // apply lightmap color\n"
 842 "       color.rgb = color.rgb * AmbientScale + tempcolor * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap));\n"
 843 "\n"
 844 "       color *= TintColor;\n"
 845 "#endif // MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
 846 "\n"
 847 "\n"
 848 "\n"
 849 "\n"
 850 "#ifdef MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n"
 851 "       // deluxemap lightmapping using light vectors in tangentspace (hmap2 -light)\n"
 852 "\n"
 853 "       // get the surface normal and light normal\n"
 854 "       myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5));\n"
 855 "\n"
 856 "       myhalf3 diffusenormal = normalize(myhalf3(texture2D(Texture_Deluxemap, TexCoordLightmap)) - myhalf3(0.5));\n"
 857 "       // calculate directional shading\n"
 858 "       myhalf3 tempcolor = color.rgb * (DiffuseScale * myhalf(max(float(dot(surfacenormal, diffusenormal)), 0.0)));\n"
 859 "# ifdef USESPECULAR\n"
 860 "       myhalf3 specularnormal = myhalf3(normalize(diffusenormal + myhalf3(normalize(EyeVector))));\n"
 861 "       tempcolor += myhalf3(texture2D(Texture_Gloss, TexCoord)) * SpecularScale * pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower);\n"
 862 "# endif\n"
 863 "\n"
 864 "       // apply lightmap color\n"
 865 "       color.rgb = color.rgb * AmbientScale + tempcolor * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap));\n"
 866 "\n"
 867 "       color *= TintColor;\n"
 868 "#endif // MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n"
 869 "\n"
 870 "\n"
 871 "\n"
 872 "\n"
 873 "#ifdef MODE_LIGHTMAP\n"
 874 "       // apply lightmap color\n"
 875 "       color.rgb = color.rgb * myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap)) * DiffuseScale + color.rgb * AmbientScale;\n"
 876 "\n"
 877 "       color *= TintColor;\n"
 878 "#endif // MODE_LIGHTMAP\n"
 879 "\n"
 880 "\n"
 881 "\n"
 882 "\n"
 883 "#ifdef MODE_VERTEXCOLOR\n"
 884 "       // apply lightmap color\n"
 885 "       color.rgb = color.rgb * myhalf3(gl_Color.rgb) * DiffuseScale + color.rgb * AmbientScale;\n"
 886 "\n"
 887 "       color *= TintColor;\n"
 888 "#endif // MODE_VERTEXCOLOR\n"
 889 "\n"
 890 "\n"
 891 "\n"
 892 "\n"
 893 "#ifdef MODE_FLATCOLOR\n"
 894 "       color *= TintColor;\n"
 895 "#endif // MODE_FLATCOLOR\n"
 896 "\n"
 897 "\n"
 898 "\n"
 899 "\n"
 900 "\n"
 901 "\n"
 902 "\n"
 903 "\n"
 904 "#ifdef USEGLOW\n"
 905 "       color.rgb += myhalf3(texture2D(Texture_Glow, TexCoord)) * GlowScale;\n"
 906 "#endif\n"
 907 "\n"
 908 "#ifdef USECONTRASTBOOST\n"
 909 "       color.rgb = color.rgb / (ContrastBoostCoeff * color.rgb + myhalf3(1, 1, 1));\n"
 910 "#endif\n"
 911 "\n"
 912 "       color.rgb *= SceneBrightness;\n"
 913 "\n"
 914 "       // apply fog after Contrastboost/SceneBrightness because its color is already modified appropriately\n"
 915 "#ifdef USEFOG\n"
 916 "       color.rgb = mix(FogColor, color.rgb, myhalf(texture2D(Texture_FogMask, myhalf2(length(EyeVectorModelSpace)*FogRangeRecip, 0.0))));\n"
 917 "#endif\n"
 918 "\n"
 919 "       // 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"
 920 "#ifdef USEREFLECTION\n"
 921 "       vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w);\n"
 922 "       //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
 923 "       vec4 ScreenTexCoord = ModelViewProjectionPosition.xyxy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect + vec3(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xyxy * DistortScaleRefractReflect;\n"
 924 "       color.rgb = mix(color.rgb, myhalf3(texture2D(Texture_Reflection, ScreenTexCoord.zw)) * ReflectColor.rgb, ReflectColor.a);\n"
 925 "#endif\n"
 926 "\n"
 927 "       gl_FragColor = vec4(color);\n"
 928 "}\n"
 929 "#endif // MODE_REFRACTION\n"
 930 "#endif // MODE_WATER\n"
 931 "\n"
 932 "#endif // FRAGMENT_SHADER\n"
 933 ;
 934
 935 typedef struct shaderpermutationinfo_s
 936 {
 937         const char *pretext;
 938         const char *name;
 939 }
 940 shaderpermutationinfo_t;
 941
 942 typedef struct shadermodeinfo_s
 943 {
 944         const char *vertexfilename;
 945         const char *geometryfilename;
 946         const char *fragmentfilename;
 947         const char *pretext;
 948         const char *name;
 949 }
 950 shadermodeinfo_t;
 951
 952 typedef enum shaderpermutation_e
 953 {
 954         SHADERPERMUTATION_COLORMAPPING = 1<<0, // indicates this is a colormapped skin
 955         SHADERPERMUTATION_CONTRASTBOOST = 1<<1, // r_glsl_contrastboost boosts the contrast at low color levels (similar to gamma)
 956         SHADERPERMUTATION_FOG = 1<<2, // tint the color by fog color or black if using additive blend mode
 957         SHADERPERMUTATION_CUBEFILTER = 1<<3, // (lightsource) use cubemap light filter
 958         SHADERPERMUTATION_GLOW = 1<<4, // (lightmap) blend in an additive glow texture
 959         SHADERPERMUTATION_DIFFUSE = 1<<5, // (lightsource) whether to use directional shading
 960         SHADERPERMUTATION_SPECULAR = 1<<6, // (lightsource or deluxemapping) render specular effects
 961         SHADERPERMUTATION_REFLECTION = 1<<7, // normalmap-perturbed reflection of the scene infront of the surface, preformed as an overlay on the surface
 962         SHADERPERMUTATION_OFFSETMAPPING = 1<<8, // adjust texcoords to roughly simulate a displacement mapped surface
 963         SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING = 1<<9, // adjust texcoords to accurately simulate a displacement mapped surface (requires OFFSETMAPPING to also be set!)
 964         SHADERPERMUTATION_LIMIT = 1<<10, // size of permutations array
 965         SHADERPERMUTATION_COUNT = 10 // size of shaderpermutationinfo array
 966 }
 967 shaderpermutation_t;
 968
 969 // NOTE: MUST MATCH ORDER OF SHADERPERMUTATION_* DEFINES!
 970 shaderpermutationinfo_t shaderpermutationinfo[SHADERPERMUTATION_COUNT] =
 971 {
 972         {"#define USECOLORMAPPING\n", " colormapping"},
 973         {"#define USECONTRASTBOOST\n", " contrastboost"},
 974         {"#define USEFOG\n", " fog"},
 975         {"#define USECUBEFILTER\n", " cubefilter"},
 976         {"#define USEGLOW\n", " glow"},
 977         {"#define USEDIFFUSE\n", " diffuse"},
 978         {"#define USESPECULAR\n", " specular"},
 979         {"#define USEREFLECTION\n", " reflection"},
 980         {"#define USEOFFSETMAPPING\n", " offsetmapping"},
 981         {"#define USEOFFSETMAPPING_RELIEFMAPPING\n", " reliefmapping"},
 982 };
 983
 984 // this enum is multiplied by SHADERPERMUTATION_MODEBASE
 985 typedef enum shadermode_e
 986 {
 987         SHADERMODE_FLATCOLOR, // (lightmap) modulate texture by uniform color (q1bsp, q3bsp)
 988         SHADERMODE_VERTEXCOLOR, // (lightmap) modulate texture by vertex colors (q3bsp)
 989         SHADERMODE_LIGHTMAP, // (lightmap) modulate texture by lightmap texture (q1bsp, q3bsp)
 990         SHADERMODE_LIGHTDIRECTIONMAP_MODELSPACE, // (lightmap) use directional pixel shading from texture containing modelspace light directions (q3bsp deluxemap)
 991         SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE, // (lightmap) use directional pixel shading from texture containing tangentspace light directions (q1bsp deluxemap)
 992         SHADERMODE_LIGHTDIRECTION, // (lightmap) use directional pixel shading from fixed light direction (q3bsp)
 993         SHADERMODE_LIGHTSOURCE, // (lightsource) use directional pixel shading from light source (rtlight)
 994         SHADERMODE_REFRACTION, // refract background (the material is rendered normally after this pass)
 995         SHADERMODE_WATER, // refract background and reflection (the material is rendered normally after this pass)
 996         SHADERMODE_COUNT
 997 }
 998 shadermode_t;
 999
1000 // NOTE: MUST MATCH ORDER OF SHADERMODE_* ENUMS!
1001 shadermodeinfo_t shadermodeinfo[SHADERMODE_COUNT] =
1002 {
1003         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_FLATCOLOR\n", " flatcolor"},
1004         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_VERTEXCOLOR\n", " vertexcolor"},
1005         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTMAP\n", " lightmap"},
1006         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTIONMAP_MODELSPACE\n", " lightdirectionmap_modelspace"},
1007         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n", " lightdirectionmap_tangentspace"},
1008         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTION\n", " lightdirection"},
1009         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTSOURCE\n", " lightsource"},
1010         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_REFRACTION\n", " refraction"},
1011         {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_WATER\n", " water"},
1012 };
1013
1014 typedef struct r_glsl_permutation_s
1015 {
1016         // indicates if we have tried compiling this permutation already
1017         qboolean compiled;
1018         // 0 if compilation failed
1019         int program;
1020         // locations of detected uniforms in program object, or -1 if not found
1021         int loc_Texture_Normal;
1022         int loc_Texture_Color;
1023         int loc_Texture_Gloss;
1024         int loc_Texture_Cube;
1025         int loc_Texture_Attenuation;
1026         int loc_Texture_FogMask;
1027         int loc_Texture_Pants;
1028         int loc_Texture_Shirt;
1029         int loc_Texture_Lightmap;
1030         int loc_Texture_Deluxemap;
1031         int loc_Texture_Glow;
1032         int loc_Texture_Refraction;
1033         int loc_Texture_Reflection;
1034         int loc_FogColor;
1035         int loc_LightPosition;
1036         int loc_EyePosition;
1037         int loc_LightColor;
1038         int loc_Color_Pants;
1039         int loc_Color_Shirt;
1040         int loc_FogRangeRecip;
1041         int loc_AmbientScale;
1042         int loc_DiffuseScale;
1043         int loc_SpecularScale;
1044         int loc_SpecularPower;
1045         int loc_GlowScale;
1046         int loc_SceneBrightness; // or: Scenebrightness * ContrastBoost
1047         int loc_OffsetMapping_Scale;
1048         int loc_TintColor;
1049         int loc_AmbientColor;
1050         int loc_DiffuseColor;
1051         int loc_SpecularColor;
1052         int loc_LightDir;
1053         int loc_ContrastBoostCoeff; // 1 - 1/ContrastBoost
1054         int loc_DistortScaleRefractReflect;
1055         int loc_ScreenScaleRefractReflect;
1056         int loc_ScreenCenterRefractReflect;
1057         int loc_RefractColor;
1058         int loc_ReflectColor;
1059         int loc_ReflectFactor;
1060         int loc_ReflectOffset;
1061 }
1062 r_glsl_permutation_t;
1063
1064 // information about each possible shader permutation
1065 r_glsl_permutation_t r_glsl_permutations[SHADERMODE_COUNT][SHADERPERMUTATION_LIMIT];
1066 // currently selected permutation
1067 r_glsl_permutation_t *r_glsl_permutation;
1068
1069 static char *R_GLSL_GetText(const char *filename, qboolean printfromdisknotice)
1070 {
1071         char *shaderstring;
1072         if (!filename || !filename[0])
1073                 return NULL;
1074         shaderstring = (char *)FS_LoadFile(filename, r_main_mempool, false, NULL);
1075         if (shaderstring)
1076         {
1077                 if (printfromdisknotice)
1078                         Con_DPrint("from disk... ");
1079                 return shaderstring;
1080         }
1081         else if (!strcmp(filename, "glsl/default.glsl"))
1082         {
1083                 shaderstring = Mem_Alloc(r_main_mempool, strlen(builtinshaderstring) + 1);
1084                 memcpy(shaderstring, builtinshaderstring, strlen(builtinshaderstring) + 1);
1085         }
1086         return shaderstring;
1087 }
1088
1089 static void R_GLSL_CompilePermutation(shadermode_t mode, shaderpermutation_t permutation)
1090 {
1091         int i;
1092         shadermodeinfo_t *modeinfo = shadermodeinfo + mode;
1093         r_glsl_permutation_t *p = &r_glsl_permutations[mode][permutation];
1094         int vertstrings_count = 0;
1095         int geomstrings_count = 0;
1096         int fragstrings_count = 0;
1097         char *vertexstring, *geometrystring, *fragmentstring;
1098         const char *vertstrings_list[32+3];
1099         const char *geomstrings_list[32+3];
1100         const char *fragstrings_list[32+3];
1101         char permutationname[256];
1102
1103         if (p->compiled)
1104                 return;
1105         p->compiled = true;
1106         p->program = 0;
1107
1108         permutationname[0] = 0;
1109         vertexstring   = R_GLSL_GetText(modeinfo->vertexfilename, true);
1110         geometrystring = R_GLSL_GetText(modeinfo->geometryfilename, false);
1111         fragmentstring = R_GLSL_GetText(modeinfo->fragmentfilename, false);
1112
1113         strlcat(permutationname, shadermodeinfo[mode].vertexfilename, sizeof(permutationname));
1114
1115         // the first pretext is which type of shader to compile as
1116         // (later these will all be bound together as a program object)
1117         vertstrings_list[vertstrings_count++] = "#define VERTEX_SHADER\n";
1118         geomstrings_list[geomstrings_count++] = "#define GEOMETRY_SHADER\n";
1119         fragstrings_list[fragstrings_count++] = "#define FRAGMENT_SHADER\n";
1120
1121         // the second pretext is the mode (for example a light source)
1122         vertstrings_list[vertstrings_count++] = shadermodeinfo[mode].pretext;
1123         geomstrings_list[geomstrings_count++] = shadermodeinfo[mode].pretext;
1124         fragstrings_list[fragstrings_count++] = shadermodeinfo[mode].pretext;
1125         strlcat(permutationname, modeinfo->name, sizeof(permutationname));
1126
1127         // now add all the permutation pretexts
1128         for (i = 0;i < SHADERPERMUTATION_COUNT;i++)
1129         {
1130                 if (permutation & (1<<i))
1131                 {
1132                         vertstrings_list[vertstrings_count++] = shaderpermutationinfo[i].pretext;
1133                         geomstrings_list[geomstrings_count++] = shaderpermutationinfo[i].pretext;
1134                         fragstrings_list[fragstrings_count++] = shaderpermutationinfo[i].pretext;
1135                         strlcat(permutationname, shaderpermutationinfo[i].name, sizeof(permutationname));
1136                 }
1137                 else
1138                 {
1139                         // keep line numbers correct
1140                         vertstrings_list[vertstrings_count++] = "\n";
1141                         geomstrings_list[geomstrings_count++] = "\n";
1142                         fragstrings_list[fragstrings_count++] = "\n";
1143                 }
1144         }
1145
1146         // now append the shader text itself
1147         vertstrings_list[vertstrings_count++] = vertexstring;
1148         geomstrings_list[geomstrings_count++] = geometrystring;
1149         fragstrings_list[fragstrings_count++] = fragmentstring;
1150
1151         // if any sources were NULL, clear the respective list
1152         if (!vertexstring)
1153                 vertstrings_count = 0;
1154         if (!geometrystring)
1155                 geomstrings_count = 0;
1156         if (!fragmentstring)
1157                 fragstrings_count = 0;
1158
1159         // compile the shader program
1160         if (vertstrings_count + geomstrings_count + fragstrings_count)
1161                 p->program = GL_Backend_CompileProgram(vertstrings_count, vertstrings_list, geomstrings_count, geomstrings_list, fragstrings_count, fragstrings_list);
1162         if (p->program)
1163         {
1164                 CHECKGLERROR
1165                 qglUseProgramObjectARB(p->program);CHECKGLERROR
1166                 // look up all the uniform variable names we care about, so we don't
1167                 // have to look them up every time we set them
1168                 p->loc_Texture_Normal      = qglGetUniformLocationARB(p->program, "Texture_Normal");
1169                 p->loc_Texture_Color       = qglGetUniformLocationARB(p->program, "Texture_Color");
1170                 p->loc_Texture_Gloss       = qglGetUniformLocationARB(p->program, "Texture_Gloss");
1171                 p->loc_Texture_Cube        = qglGetUniformLocationARB(p->program, "Texture_Cube");
1172                 p->loc_Texture_Attenuation = qglGetUniformLocationARB(p->program, "Texture_Attenuation");
1173                 p->loc_Texture_FogMask     = qglGetUniformLocationARB(p->program, "Texture_FogMask");
1174                 p->loc_Texture_Pants       = qglGetUniformLocationARB(p->program, "Texture_Pants");
1175                 p->loc_Texture_Shirt       = qglGetUniformLocationARB(p->program, "Texture_Shirt");
1176                 p->loc_Texture_Lightmap    = qglGetUniformLocationARB(p->program, "Texture_Lightmap");
1177                 p->loc_Texture_Deluxemap   = qglGetUniformLocationARB(p->program, "Texture_Deluxemap");
1178                 p->loc_Texture_Glow        = qglGetUniformLocationARB(p->program, "Texture_Glow");
1179                 p->loc_Texture_Refraction  = qglGetUniformLocationARB(p->program, "Texture_Refraction");
1180                 p->loc_Texture_Reflection  = qglGetUniformLocationARB(p->program, "Texture_Reflection");
1181                 p->loc_FogColor            = qglGetUniformLocationARB(p->program, "FogColor");
1182                 p->loc_LightPosition       = qglGetUniformLocationARB(p->program, "LightPosition");
1183                 p->loc_EyePosition         = qglGetUniformLocationARB(p->program, "EyePosition");
1184                 p->loc_LightColor          = qglGetUniformLocationARB(p->program, "LightColor");
1185                 p->loc_Color_Pants         = qglGetUniformLocationARB(p->program, "Color_Pants");
1186                 p->loc_Color_Shirt         = qglGetUniformLocationARB(p->program, "Color_Shirt");
1187                 p->loc_FogRangeRecip       = qglGetUniformLocationARB(p->program, "FogRangeRecip");
1188                 p->loc_AmbientScale        = qglGetUniformLocationARB(p->program, "AmbientScale");
1189                 p->loc_DiffuseScale        = qglGetUniformLocationARB(p->program, "DiffuseScale");
1190                 p->loc_SpecularPower       = qglGetUniformLocationARB(p->program, "SpecularPower");
1191                 p->loc_SpecularScale       = qglGetUniformLocationARB(p->program, "SpecularScale");
1192                 p->loc_GlowScale           = qglGetUniformLocationARB(p->program, "GlowScale");
1193                 p->loc_SceneBrightness     = qglGetUniformLocationARB(p->program, "SceneBrightness");
1194                 p->loc_OffsetMapping_Scale = qglGetUniformLocationARB(p->program, "OffsetMapping_Scale");
1195                 p->loc_TintColor       = qglGetUniformLocationARB(p->program, "TintColor");
1196                 p->loc_AmbientColor        = qglGetUniformLocationARB(p->program, "AmbientColor");
1197                 p->loc_DiffuseColor        = qglGetUniformLocationARB(p->program, "DiffuseColor");
1198                 p->loc_SpecularColor       = qglGetUniformLocationARB(p->program, "SpecularColor");
1199                 p->loc_LightDir            = qglGetUniformLocationARB(p->program, "LightDir");
1200                 p->loc_ContrastBoostCoeff  = qglGetUniformLocationARB(p->program, "ContrastBoostCoeff");
1201                 p->loc_DistortScaleRefractReflect = qglGetUniformLocationARB(p->program, "DistortScaleRefractReflect");
1202                 p->loc_ScreenScaleRefractReflect = qglGetUniformLocationARB(p->program, "ScreenScaleRefractReflect");
1203                 p->loc_ScreenCenterRefractReflect = qglGetUniformLocationARB(p->program, "ScreenCenterRefractReflect");
1204                 p->loc_RefractColor        = qglGetUniformLocationARB(p->program, "RefractColor");
1205                 p->loc_ReflectColor        = qglGetUniformLocationARB(p->program, "ReflectColor");
1206                 p->loc_ReflectFactor       = qglGetUniformLocationARB(p->program, "ReflectFactor");
1207                 p->loc_ReflectOffset       = qglGetUniformLocationARB(p->program, "ReflectOffset");
1208                 // initialize the samplers to refer to the texture units we use
1209                 if (p->loc_Texture_Normal >= 0)    qglUniform1iARB(p->loc_Texture_Normal, 0);
1210                 if (p->loc_Texture_Color >= 0)     qglUniform1iARB(p->loc_Texture_Color, 1);
1211                 if (p->loc_Texture_Gloss >= 0)     qglUniform1iARB(p->loc_Texture_Gloss, 2);
1212                 if (p->loc_Texture_Cube >= 0)      qglUniform1iARB(p->loc_Texture_Cube, 3);
1213                 if (p->loc_Texture_FogMask >= 0)   qglUniform1iARB(p->loc_Texture_FogMask, 4);
1214                 if (p->loc_Texture_Pants >= 0)     qglUniform1iARB(p->loc_Texture_Pants, 5);
1215                 if (p->loc_Texture_Shirt >= 0)     qglUniform1iARB(p->loc_Texture_Shirt, 6);
1216                 if (p->loc_Texture_Lightmap >= 0)  qglUniform1iARB(p->loc_Texture_Lightmap, 7);
1217                 if (p->loc_Texture_Deluxemap >= 0) qglUniform1iARB(p->loc_Texture_Deluxemap, 8);
1218                 if (p->loc_Texture_Glow >= 0)      qglUniform1iARB(p->loc_Texture_Glow, 9);
1219                 if (p->loc_Texture_Attenuation >= 0) qglUniform1iARB(p->loc_Texture_Attenuation, 10);
1220                 if (p->loc_Texture_Refraction >= 0) qglUniform1iARB(p->loc_Texture_Refraction, 11);
1221                 if (p->loc_Texture_Reflection >= 0) qglUniform1iARB(p->loc_Texture_Reflection, 12);
1222                 CHECKGLERROR
1223                 qglUseProgramObjectARB(0);CHECKGLERROR
1224                 if (developer.integer)
1225                         Con_Printf("GLSL shader %s compiled.\n", permutationname);
1226         }
1227         else
1228                 Con_Printf("GLSL shader %s failed!  some features may not work properly.\n", permutationname);
1229
1230         // free the strings
1231         if (vertexstring)
1232                 Mem_Free(vertexstring);
1233         if (geometrystring)
1234                 Mem_Free(geometrystring);
1235         if (fragmentstring)
1236                 Mem_Free(fragmentstring);
1237 }
1238
1239 void R_GLSL_Restart_f(void)
1240 {
1241         shadermode_t mode;
1242         shaderpermutation_t permutation;
1243         for (mode = 0;mode < SHADERMODE_COUNT;mode++)
1244                 for (permutation = 0;permutation < SHADERPERMUTATION_LIMIT;permutation++)
1245                         if (r_glsl_permutations[mode][permutation].program)
1246                                 GL_Backend_FreeProgram(r_glsl_permutations[mode][permutation].program);
1247         memset(r_glsl_permutations, 0, sizeof(r_glsl_permutations));
1248 }
1249
1250 void R_GLSL_DumpShader_f(void)
1251 {
1252         int i;
1253
1254         qfile_t *file = FS_Open("glsl/default.glsl", "w", false, false);
1255         if(!file)
1256         {
1257                 Con_Printf("failed to write to glsl/default.glsl\n");
1258                 return;
1259         }
1260
1261         FS_Print(file, "// The engine may define the following macros:\n");
1262         FS_Print(file, "// #define VERTEX_SHADER\n// #define GEOMETRY_SHADER\n// #define FRAGMENT_SHADER\n");
1263         for (i = 0;i < SHADERMODE_COUNT;i++)
1264                 FS_Printf(file, "// %s", shadermodeinfo[i].pretext);
1265         for (i = 0;i < SHADERPERMUTATION_LIMIT;i++)
1266                 FS_Printf(file, "// %s", shaderpermutationinfo[i].pretext);
1267         FS_Print(file, "\n");
1268         FS_Print(file, builtinshaderstring);
1269         FS_Close(file);
1270
1271         Con_Printf("glsl/default.glsl written\n");
1272 }
1273
1274 extern rtexture_t *r_shadow_attenuationgradienttexture;
1275 extern rtexture_t *r_shadow_attenuation2dtexture;
1276 extern rtexture_t *r_shadow_attenuation3dtexture;
1277 int R_SetupSurfaceShader(const vec3_t lightcolorbase, qboolean modellighting, float ambientscale, float diffusescale, float specularscale, rsurfacepass_t rsurfacepass)
1278 {
1279         // select a permutation of the lighting shader appropriate to this
1280         // combination of texture, entity, light source, and fogging, only use the
1281         // minimum features necessary to avoid wasting rendering time in the
1282         // fragment shader on features that are not being used
1283         unsigned int permutation = 0;
1284         shadermode_t mode = 0;
1285         r_glsl_permutation = NULL;
1286         // TODO: implement geometry-shader based shadow volumes someday
1287         if (r_glsl_offsetmapping.integer)
1288         {
1289                 permutation |= SHADERPERMUTATION_OFFSETMAPPING;
1290                 if (r_glsl_offsetmapping_reliefmapping.integer)
1291                         permutation |= SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING;
1292         }
1293         if (rsurfacepass == RSURFPASS_BACKGROUND)
1294         {
1295                 // distorted background
1296                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_WATERSHADER)
1297                         mode = SHADERMODE_WATER;
1298                 else
1299                         mode = SHADERMODE_REFRACTION;
1300         }
1301         else if (rsurfacepass == RSURFPASS_RTLIGHT)
1302         {
1303                 // light source
1304                 mode = SHADERMODE_LIGHTSOURCE;
1305                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
1306                         permutation |= SHADERPERMUTATION_CUBEFILTER;
1307                 if (diffusescale > 0)
1308                         permutation |= SHADERPERMUTATION_DIFFUSE;
1309                 if (specularscale > 0)
1310                         permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1311                 if (r_refdef.fogenabled)
1312                         permutation |= SHADERPERMUTATION_FOG;
1313                 if (rsurface.texture->colormapping)
1314                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1315                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1316                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1317         }
1318         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
1319         {
1320                 // unshaded geometry (fullbright or ambient model lighting)
1321                 mode = SHADERMODE_FLATCOLOR;
1322                 if (rsurface.texture->currentskinframe->glow)
1323                         permutation |= SHADERPERMUTATION_GLOW;
1324                 if (r_refdef.fogenabled)
1325                         permutation |= SHADERPERMUTATION_FOG;
1326                 if (rsurface.texture->colormapping)
1327                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1328                 if (r_glsl_offsetmapping.integer)
1329                 {
1330                         permutation |= SHADERPERMUTATION_OFFSETMAPPING;
1331                         if (r_glsl_offsetmapping_reliefmapping.integer)
1332                                 permutation |= SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING;
1333                 }
1334                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1335                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1336                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1337                         permutation |= SHADERPERMUTATION_REFLECTION;
1338         }
1339         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT_DIRECTIONAL)
1340         {
1341                 // directional model lighting
1342                 mode = SHADERMODE_LIGHTDIRECTION;
1343                 if (rsurface.texture->currentskinframe->glow)
1344                         permutation |= SHADERPERMUTATION_GLOW;
1345                 permutation |= SHADERPERMUTATION_DIFFUSE;
1346                 if (specularscale > 0)
1347                         permutation |= SHADERPERMUTATION_SPECULAR;
1348                 if (r_refdef.fogenabled)
1349                         permutation |= SHADERPERMUTATION_FOG;
1350                 if (rsurface.texture->colormapping)
1351                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1352                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1353                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1354                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1355                         permutation |= SHADERPERMUTATION_REFLECTION;
1356         }
1357         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
1358         {
1359                 // ambient model lighting
1360                 mode = SHADERMODE_LIGHTDIRECTION;
1361                 if (rsurface.texture->currentskinframe->glow)
1362                         permutation |= SHADERPERMUTATION_GLOW;
1363                 if (r_refdef.fogenabled)
1364                         permutation |= SHADERPERMUTATION_FOG;
1365                 if (rsurface.texture->colormapping)
1366                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1367                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1368                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1369                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1370                         permutation |= SHADERPERMUTATION_REFLECTION;
1371         }
1372         else
1373         {
1374                 // lightmapped wall
1375                 if (r_glsl_deluxemapping.integer >= 1 && rsurface.uselightmaptexture && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brushq3.deluxemapping)
1376                 {
1377                         // deluxemapping (light direction texture)
1378                         if (rsurface.uselightmaptexture && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brushq3.deluxemapping && r_refdef.scene.worldmodel->brushq3.deluxemapping_modelspace)
1379                                 mode = SHADERMODE_LIGHTDIRECTIONMAP_MODELSPACE;
1380                         else
1381                                 mode = SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE;
1382                         if (specularscale > 0)
1383                                 permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1384                 }
1385                 else if (r_glsl_deluxemapping.integer >= 2)
1386                 {
1387                         // fake deluxemapping (uniform light direction in tangentspace)
1388                         mode = SHADERMODE_LIGHTDIRECTIONMAP_TANGENTSPACE;
1389                         if (specularscale > 0)
1390                                 permutation |= SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_DIFFUSE;
1391                 }
1392                 else if (rsurface.uselightmaptexture)
1393                 {
1394                         // ordinary lightmapping (q1bsp, q3bsp)
1395                         mode = SHADERMODE_LIGHTMAP;
1396                 }
1397                 else
1398                 {
1399                         // ordinary vertex coloring (q3bsp)
1400                         mode = SHADERMODE_VERTEXCOLOR;
1401                 }
1402                 if (rsurface.texture->currentskinframe->glow)
1403                         permutation |= SHADERPERMUTATION_GLOW;
1404                 if (r_refdef.fogenabled)
1405                         permutation |= SHADERPERMUTATION_FOG;
1406                 if (rsurface.texture->colormapping)
1407                         permutation |= SHADERPERMUTATION_COLORMAPPING;
1408                 if(r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)
1409                         permutation |= SHADERPERMUTATION_CONTRASTBOOST;
1410                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
1411                         permutation |= SHADERPERMUTATION_REFLECTION;
1412         }
1413         r_glsl_permutation = &r_glsl_permutations[mode][permutation];
1414         if (!r_glsl_permutation->program)
1415         {
1416                 if (!r_glsl_permutation->compiled)
1417                         R_GLSL_CompilePermutation(mode, permutation);
1418                 if (!r_glsl_permutation->program)
1419                 {
1420                         // remove features until we find a valid permutation
1421                         int i;
1422                         for (i = 0;i < SHADERPERMUTATION_COUNT;i++)
1423                         {
1424                                 // reduce i more quickly whenever it would not remove any bits
1425                                 int j = 1<<(SHADERPERMUTATION_COUNT-1-i);
1426                                 if (!(permutation & j))
1427                                         continue;
1428                                 permutation -= j;
1429                                 r_glsl_permutation = &r_glsl_permutations[mode][permutation];
1430                                 if (!r_glsl_permutation->compiled)
1431                                         R_GLSL_CompilePermutation(mode, permutation);
1432                                 if (r_glsl_permutation->program)
1433                                         break;
1434                         }
1435                         if (i >= SHADERPERMUTATION_COUNT)
1436                         {
1437                                 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");
1438                                 Cvar_SetValueQuick(&r_glsl, 0);
1439                                 return 0; // no bit left to clear
1440                         }
1441                 }
1442         }
1443         CHECKGLERROR
1444         qglUseProgramObjectARB(r_glsl_permutation->program);CHECKGLERROR
1445         if (mode == SHADERMODE_LIGHTSOURCE)
1446         {
1447                 if (r_glsl_permutation->loc_LightPosition >= 0) qglUniform3fARB(r_glsl_permutation->loc_LightPosition, rsurface.entitylightorigin[0], rsurface.entitylightorigin[1], rsurface.entitylightorigin[2]);
1448                 if (permutation & SHADERPERMUTATION_DIFFUSE)
1449                 {
1450                         if (r_glsl_permutation->loc_LightColor >= 0) qglUniform3fARB(r_glsl_permutation->loc_LightColor, lightcolorbase[0], lightcolorbase[1], lightcolorbase[2]);
1451                         if (r_glsl_permutation->loc_AmbientScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, ambientscale);
1452                         if (r_glsl_permutation->loc_DiffuseScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, diffusescale);
1453                         if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, specularscale);
1454                 }
1455                 else
1456                 {
1457                         // ambient only is simpler
1458                         if (r_glsl_permutation->loc_LightColor >= 0) qglUniform3fARB(r_glsl_permutation->loc_LightColor, lightcolorbase[0] * ambientscale, lightcolorbase[1] * ambientscale, lightcolorbase[2] * ambientscale);
1459                         if (r_glsl_permutation->loc_AmbientScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, 1);
1460                         if (r_glsl_permutation->loc_DiffuseScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, 0);
1461                         if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, 0);
1462                 }
1463         }
1464         else if (mode == SHADERMODE_LIGHTDIRECTION)
1465         {
1466                 if (r_glsl_permutation->loc_AmbientColor >= 0)
1467                         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);
1468                 if (r_glsl_permutation->loc_DiffuseColor >= 0)
1469                         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);
1470                 if (r_glsl_permutation->loc_SpecularColor >= 0)
1471                         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);
1472                 if (r_glsl_permutation->loc_LightDir >= 0)
1473                         qglUniform3fARB(r_glsl_permutation->loc_LightDir, rsurface.modellight_lightdir[0], rsurface.modellight_lightdir[1], rsurface.modellight_lightdir[2]);
1474         }
1475         else
1476         {
1477                 if (r_glsl_permutation->loc_AmbientScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_AmbientScale, r_ambient.value * 1.0f / 128.0f);
1478                 if (r_glsl_permutation->loc_DiffuseScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_DiffuseScale, r_refdef.lightmapintensity);
1479                 if (r_glsl_permutation->loc_SpecularScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularScale, r_refdef.lightmapintensity * specularscale);
1480         }
1481         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]);
1482         if (r_glsl_permutation->loc_GlowScale >= 0) qglUniform1fARB(r_glsl_permutation->loc_GlowScale, r_hdr_glowintensity.value);
1483         if (r_glsl_permutation->loc_ContrastBoostCoeff >= 0)
1484         {
1485                 // The formula used is actually:
1486                 //   color.rgb *= ContrastBoost / ((ContrastBoost - 1) * color.rgb + 1);
1487                 //   color.rgb *= SceneBrightness;
1488                 // simplified:
1489                 //   color.rgb = [[SceneBrightness * ContrastBoost]] * color.rgb / ([[ContrastBoost - 1]] * color.rgb + 1);
1490                 // and do [[calculations]] here in the engine
1491                 qglUniform1fARB(r_glsl_permutation->loc_ContrastBoostCoeff, r_glsl_contrastboost.value - 1);
1492                 if (r_glsl_permutation->loc_SceneBrightness >= 0) qglUniform1fARB(r_glsl_permutation->loc_SceneBrightness, r_refdef.view.colorscale * r_glsl_contrastboost.value);
1493         }
1494         else
1495                 if (r_glsl_permutation->loc_SceneBrightness >= 0) qglUniform1fARB(r_glsl_permutation->loc_SceneBrightness, r_refdef.view.colorscale);
1496         if (r_glsl_permutation->loc_FogColor >= 0)
1497         {
1498                 // additive passes are only darkened by fog, not tinted
1499                 if (rsurface.rtlight || (rsurface.texture->currentmaterialflags & MATERIALFLAG_ADD))
1500                         qglUniform3fARB(r_glsl_permutation->loc_FogColor, 0, 0, 0);
1501                 else
1502                         qglUniform3fARB(r_glsl_permutation->loc_FogColor, r_refdef.fogcolor[0], r_refdef.fogcolor[1], r_refdef.fogcolor[2]);
1503         }
1504         if (r_glsl_permutation->loc_EyePosition >= 0) qglUniform3fARB(r_glsl_permutation->loc_EyePosition, rsurface.modelorg[0], rsurface.modelorg[1], rsurface.modelorg[2]);
1505         if (r_glsl_permutation->loc_Color_Pants >= 0)
1506         {
1507                 if (rsurface.texture->currentskinframe->pants)
1508                         qglUniform3fARB(r_glsl_permutation->loc_Color_Pants, rsurface.colormap_pantscolor[0], rsurface.colormap_pantscolor[1], rsurface.colormap_pantscolor[2]);
1509                 else
1510                         qglUniform3fARB(r_glsl_permutation->loc_Color_Pants, 0, 0, 0);
1511         }
1512         if (r_glsl_permutation->loc_Color_Shirt >= 0)
1513         {
1514                 if (rsurface.texture->currentskinframe->shirt)
1515                         qglUniform3fARB(r_glsl_permutation->loc_Color_Shirt, rsurface.colormap_shirtcolor[0], rsurface.colormap_shirtcolor[1], rsurface.colormap_shirtcolor[2]);
1516                 else
1517                         qglUniform3fARB(r_glsl_permutation->loc_Color_Shirt, 0, 0, 0);
1518         }
1519         if (r_glsl_permutation->loc_FogRangeRecip >= 0) qglUniform1fARB(r_glsl_permutation->loc_FogRangeRecip, r_refdef.fograngerecip);
1520         if (r_glsl_permutation->loc_SpecularPower >= 0) qglUniform1fARB(r_glsl_permutation->loc_SpecularPower, rsurface.texture->specularpower);
1521         if (r_glsl_permutation->loc_OffsetMapping_Scale >= 0) qglUniform1fARB(r_glsl_permutation->loc_OffsetMapping_Scale, r_glsl_offsetmapping_scale.value);
1522         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);
1523         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]);
1524         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]);
1525         if (r_glsl_permutation->loc_RefractColor >= 0) qglUniform4fvARB(r_glsl_permutation->loc_RefractColor, 1, rsurface.texture->refractcolor4f);
1526         if (r_glsl_permutation->loc_ReflectColor >= 0) qglUniform4fvARB(r_glsl_permutation->loc_ReflectColor, 1, rsurface.texture->reflectcolor4f);
1527         if (r_glsl_permutation->loc_ReflectFactor >= 0) qglUniform1fARB(r_glsl_permutation->loc_ReflectFactor, rsurface.texture->reflectmax - rsurface.texture->reflectmin);
1528         if (r_glsl_permutation->loc_ReflectOffset >= 0) qglUniform1fARB(r_glsl_permutation->loc_ReflectOffset, rsurface.texture->reflectmin);
1529         CHECKGLERROR
1530         return permutation;
1531 }
1532
1533 #define SKINFRAME_HASH 1024
1534
1535 struct
1536 {
1537         int loadsequence; // incremented each level change
1538         memexpandablearray_t array;
1539         skinframe_t *hash[SKINFRAME_HASH];
1540 }
1541 r_skinframe;
1542
1543 void R_SkinFrame_PrepareForPurge(void)
1544 {
1545         r_skinframe.loadsequence++;
1546         // wrap it without hitting zero
1547         if (r_skinframe.loadsequence >= 200)
1548                 r_skinframe.loadsequence = 1;
1549 }
1550
1551 void R_SkinFrame_MarkUsed(skinframe_t *skinframe)
1552 {
1553         if (!skinframe)
1554                 return;
1555         // mark the skinframe as used for the purging code
1556         skinframe->loadsequence = r_skinframe.loadsequence;
1557 }
1558
1559 void R_SkinFrame_Purge(void)
1560 {
1561         int i;
1562         skinframe_t *s;
1563         for (i = 0;i < SKINFRAME_HASH;i++)
1564         {
1565                 for (s = r_skinframe.hash[i];s;s = s->next)
1566                 {
1567                         if (s->loadsequence && s->loadsequence != r_skinframe.loadsequence)
1568                         {
1569                                 if (s->merged == s->base)
1570                                         s->merged = NULL;
1571                                 // FIXME: maybe pass a pointer to the pointer to R_PurgeTexture and reset it to NULL inside? [11/29/2007 Black]
1572                                 R_PurgeTexture(s->stain );s->stain  = NULL;
1573                                 R_PurgeTexture(s->merged);s->merged = NULL;
1574                                 R_PurgeTexture(s->base  );s->base   = NULL;
1575                                 R_PurgeTexture(s->pants );s->pants  = NULL;
1576                                 R_PurgeTexture(s->shirt );s->shirt  = NULL;
1577                                 R_PurgeTexture(s->nmap  );s->nmap   = NULL;
1578                                 R_PurgeTexture(s->gloss );s->gloss  = NULL;
1579                                 R_PurgeTexture(s->glow  );s->glow   = NULL;
1580                                 R_PurgeTexture(s->fog   );s->fog    = NULL;
1581                                 s->loadsequence = 0;
1582                         }
1583                 }
1584         }
1585 }
1586
1587 skinframe_t *R_SkinFrame_FindNextByName( skinframe_t *last, const char *name ) {
1588         skinframe_t *item;
1589         char basename[MAX_QPATH];
1590
1591         Image_StripImageExtension(name, basename, sizeof(basename));
1592
1593         if( last == NULL ) {
1594                 int hashindex;
1595                 hashindex = CRC_Block((unsigned char *)basename, strlen(basename)) & (SKINFRAME_HASH - 1);
1596                 item = r_skinframe.hash[hashindex];
1597         } else {
1598                 item = last->next;
1599         }
1600
1601         // linearly search through the hash bucket
1602         for( ; item ; item = item->next ) {
1603                 if( !strcmp( item->basename, basename ) ) {
1604                         return item;
1605                 }
1606         }
1607         return NULL;
1608 }
1609
1610 skinframe_t *R_SkinFrame_Find(const char *name, int textureflags, int comparewidth, int compareheight, int comparecrc, qboolean add)
1611 {
1612         skinframe_t *item;
1613         int hashindex;
1614         char basename[MAX_QPATH];
1615
1616         Image_StripImageExtension(name, basename, sizeof(basename));
1617
1618         hashindex = CRC_Block((unsigned char *)basename, strlen(basename)) & (SKINFRAME_HASH - 1);
1619         for (item = r_skinframe.hash[hashindex];item;item = item->next)
1620                 if (!strcmp(item->basename, basename) && item->textureflags == textureflags && item->comparewidth == comparewidth && item->compareheight == compareheight && item->comparecrc == comparecrc)
1621                         break;
1622
1623         if (!item) {
1624                 rtexture_t *dyntexture;
1625                 // check whether its a dynamic texture
1626                 dyntexture = CL_GetDynTexture( basename );
1627                 if (!add && !dyntexture)
1628                         return NULL;
1629                 item = (skinframe_t *)Mem_ExpandableArray_AllocRecord(&r_skinframe.array);
1630                 memset(item, 0, sizeof(*item));
1631                 strlcpy(item->basename, basename, sizeof(item->basename));
1632                 item->base = dyntexture; // either NULL or dyntexture handle
1633                 item->textureflags = textureflags;
1634                 item->comparewidth = comparewidth;
1635                 item->compareheight = compareheight;
1636                 item->comparecrc = comparecrc;
1637                 item->next = r_skinframe.hash[hashindex];
1638                 r_skinframe.hash[hashindex] = item;
1639         }
1640         else if( item->base == NULL )
1641         {
1642                 rtexture_t *dyntexture;
1643                 // check whether its a dynamic texture
1644                 // 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]
1645                 dyntexture = CL_GetDynTexture( basename );
1646                 item->base = dyntexture; // either NULL or dyntexture handle
1647         }
1648
1649         R_SkinFrame_MarkUsed(item);
1650         return item;
1651 }
1652
1653 skinframe_t *R_SkinFrame_LoadExternal(const char *name, int textureflags, qboolean complain)
1654 {
1655         // FIXME: it should be possible to disable loading various layers using
1656         // cvars, to prevent wasted loading time and memory usage if the user does
1657         // not want them
1658         qboolean loadnormalmap = true;
1659         qboolean loadgloss = true;
1660         qboolean loadpantsandshirt = true;
1661         qboolean loadglow = true;
1662         int j;
1663         unsigned char *pixels;
1664         unsigned char *bumppixels;
1665         unsigned char *basepixels = NULL;
1666         int basepixels_width;
1667         int basepixels_height;
1668         skinframe_t *skinframe;
1669
1670         if (cls.state == ca_dedicated)
1671                 return NULL;
1672
1673         // return an existing skinframe if already loaded
1674         // if loading of the first image fails, don't make a new skinframe as it
1675         // would cause all future lookups of this to be missing
1676         skinframe = R_SkinFrame_Find(name, textureflags, 0, 0, 0, false);
1677         if (skinframe && skinframe->base)
1678                 return skinframe;
1679
1680         basepixels = loadimagepixelsbgra(name, complain, true);
1681         if (basepixels == NULL)
1682                 return NULL;
1683
1684         // we've got some pixels to store, so really allocate this new texture now
1685         if (!skinframe)
1686                 skinframe = R_SkinFrame_Find(name, textureflags, 0, 0, 0, true);
1687         skinframe->stain = NULL;
1688         skinframe->merged = NULL;
1689         skinframe->base = r_texture_notexture;
1690         skinframe->pants = NULL;
1691         skinframe->shirt = NULL;
1692         skinframe->nmap = r_texture_blanknormalmap;
1693         skinframe->gloss = NULL;
1694         skinframe->glow = NULL;
1695         skinframe->fog = NULL;
1696
1697         basepixels_width = image_width;
1698         basepixels_height = image_height;
1699         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);
1700
1701         if (textureflags & TEXF_ALPHA)
1702         {
1703                 for (j = 3;j < basepixels_width * basepixels_height * 4;j += 4)
1704                         if (basepixels[j] < 255)
1705                                 break;
1706                 if (j < basepixels_width * basepixels_height * 4)
1707                 {
1708                         // has transparent pixels
1709                         pixels = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
1710                         for (j = 0;j < image_width * image_height * 4;j += 4)
1711                         {
1712                                 pixels[j+0] = 255;
1713                                 pixels[j+1] = 255;
1714                                 pixels[j+2] = 255;
1715                                 pixels[j+3] = basepixels[j+3];
1716                         }
1717                         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);
1718                         Mem_Free(pixels);
1719                 }
1720         }
1721
1722         // _norm is the name used by tenebrae and has been adopted as standard
1723         if (loadnormalmap)
1724         {
1725                 if ((pixels = loadimagepixelsbgra(va("%s_norm", skinframe->basename), false, false)) != NULL)
1726                 {
1727                         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);
1728                         Mem_Free(pixels);
1729                         pixels = NULL;
1730                 }
1731                 else if (r_shadow_bumpscale_bumpmap.value > 0 && (bumppixels = loadimagepixelsbgra(va("%s_bump", skinframe->basename), false, false)) != NULL)
1732                 {
1733                         pixels = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
1734                         Image_HeightmapToNormalmap_BGRA(bumppixels, pixels, image_width, image_height, false, r_shadow_bumpscale_bumpmap.value);
1735                         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);
1736                         Mem_Free(pixels);
1737                         Mem_Free(bumppixels);
1738                 }
1739                 else if (r_shadow_bumpscale_basetexture.value > 0)
1740                 {
1741                         pixels = (unsigned char *)Mem_Alloc(tempmempool, basepixels_width * basepixels_height * 4);
1742                         Image_HeightmapToNormalmap_BGRA(basepixels, pixels, basepixels_width, basepixels_height, false, r_shadow_bumpscale_basetexture.value);
1743                         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);
1744                         Mem_Free(pixels);
1745                 }
1746         }
1747         // _luma is supported for tenebrae compatibility
1748         // (I think it's a very stupid name, but oh well)
1749         // _glow is the preferred name
1750         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;}
1751         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;}
1752         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;}
1753         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;}
1754
1755         if (basepixels)
1756                 Mem_Free(basepixels);
1757
1758         return skinframe;
1759 }
1760
1761 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)
1762 {
1763         int i;
1764         if (!force)
1765         {
1766                 for (i = 0;i < width*height;i++)
1767                         if (((unsigned char *)&palette[in[i]])[3] > 0)
1768                                 break;
1769                 if (i == width*height)
1770                         return NULL;
1771         }
1772         return R_LoadTexture2D (r_main_texturepool, name, width, height, in, TEXTYPE_PALETTE, textureflags, palette);
1773 }
1774
1775 // this is only used by .spr32 sprites, HL .spr files, HL .bsp files
1776 skinframe_t *R_SkinFrame_LoadInternalBGRA(const char *name, int textureflags, const unsigned char *skindata, int width, int height)
1777 {
1778         int i;
1779         unsigned char *temp1, *temp2;
1780         skinframe_t *skinframe;
1781
1782         if (cls.state == ca_dedicated)
1783                 return NULL;
1784
1785         // if already loaded just return it, otherwise make a new skinframe
1786         skinframe = R_SkinFrame_Find(name, textureflags, width, height, skindata ? CRC_Block(skindata, width*height*4) : 0, true);
1787         if (skinframe && skinframe->base)
1788                 return skinframe;
1789
1790         skinframe->stain = NULL;
1791         skinframe->merged = NULL;
1792         skinframe->base = r_texture_notexture;
1793         skinframe->pants = NULL;
1794         skinframe->shirt = NULL;
1795         skinframe->nmap = r_texture_blanknormalmap;
1796         skinframe->gloss = NULL;
1797         skinframe->glow = NULL;
1798         skinframe->fog = NULL;
1799
1800         // if no data was provided, then clearly the caller wanted to get a blank skinframe
1801         if (!skindata)
1802                 return NULL;
1803
1804         if (r_shadow_bumpscale_basetexture.value > 0)
1805         {
1806                 temp1 = (unsigned char *)Mem_Alloc(tempmempool, width * height * 8);
1807                 temp2 = temp1 + width * height * 4;
1808                 Image_HeightmapToNormalmap_BGRA(skindata, temp2, width, height, false, r_shadow_bumpscale_basetexture.value);
1809                 skinframe->nmap = R_LoadTexture2D(r_main_texturepool, va("%s_nmap", skinframe->basename), width, height, temp2, TEXTYPE_BGRA, skinframe->textureflags | TEXF_ALPHA, NULL);
1810                 Mem_Free(temp1);
1811         }
1812         skinframe->base = skinframe->merged = R_LoadTexture2D(r_main_texturepool, skinframe->basename, width, height, skindata, TEXTYPE_BGRA, skinframe->textureflags, NULL);
1813         if (textureflags & TEXF_ALPHA)
1814         {
1815                 for (i = 3;i < width * height * 4;i += 4)
1816                         if (skindata[i] < 255)
1817                                 break;
1818                 if (i < width * height * 4)
1819                 {
1820                         unsigned char *fogpixels = (unsigned char *)Mem_Alloc(tempmempool, width * height * 4);
1821                         memcpy(fogpixels, skindata, width * height * 4);
1822                         for (i = 0;i < width * height * 4;i += 4)
1823                                 fogpixels[i] = fogpixels[i+1] = fogpixels[i+2] = 255;
1824                         skinframe->fog = R_LoadTexture2D(r_main_texturepool, va("%s_fog", skinframe->basename), width, height, fogpixels, TEXTYPE_BGRA, skinframe->textureflags, NULL);
1825                         Mem_Free(fogpixels);
1826                 }
1827         }
1828
1829         return skinframe;
1830 }
1831
1832 skinframe_t *R_SkinFrame_LoadInternalQuake(const char *name, int textureflags, int loadpantsandshirt, int loadglowtexture, const unsigned char *skindata, int width, int height)
1833 {
1834         int i;
1835         unsigned char *temp1, *temp2;
1836         skinframe_t *skinframe;
1837
1838         if (cls.state == ca_dedicated)
1839                 return NULL;
1840
1841         // if already loaded just return it, otherwise make a new skinframe
1842         skinframe = R_SkinFrame_Find(name, textureflags, width, height, skindata ? CRC_Block(skindata, width*height) : 0, true);
1843         if (skinframe && skinframe->base)
1844                 return skinframe;
1845
1846         skinframe->stain = NULL;
1847         skinframe->merged = NULL;
1848         skinframe->base = r_texture_notexture;
1849         skinframe->pants = NULL;
1850         skinframe->shirt = NULL;
1851         skinframe->nmap = r_texture_blanknormalmap;
1852         skinframe->gloss = NULL;
1853         skinframe->glow = NULL;
1854         skinframe->fog = NULL;
1855
1856         // if no data was provided, then clearly the caller wanted to get a blank skinframe
1857         if (!skindata)
1858                 return NULL;
1859
1860         if (r_shadow_bumpscale_basetexture.value > 0)
1861         {
1862                 temp1 = (unsigned char *)Mem_Alloc(tempmempool, width * height * 8);
1863                 temp2 = temp1 + width * height * 4;
1864                 // use either a custom palette or the quake palette
1865                 Image_Copy8bitBGRA(skindata, temp1, width * height, palette_bgra_complete);
1866                 Image_HeightmapToNormalmap_BGRA(temp1, temp2, width, height, false, r_shadow_bumpscale_basetexture.value);
1867                 skinframe->nmap = R_LoadTexture2D(r_main_texturepool, va("%s_nmap", skinframe->basename), width, height, temp2, TEXTYPE_BGRA, skinframe->textureflags | TEXF_ALPHA, NULL);
1868                 Mem_Free(temp1);
1869         }
1870         // use either a custom palette, or the quake palette
1871         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
1872         if (loadglowtexture)
1873                 skinframe->glow = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_glow", skinframe->basename), palette_bgra_onlyfullbrights, skinframe->textureflags, false); // glow
1874         if (loadpantsandshirt)
1875         {
1876                 skinframe->pants = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_pants", skinframe->basename), palette_bgra_pantsaswhite, skinframe->textureflags, false); // pants
1877                 skinframe->shirt = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_shirt", skinframe->basename), palette_bgra_shirtaswhite, skinframe->textureflags, false); // shirt
1878         }
1879         if (skinframe->pants || skinframe->shirt)
1880                 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
1881         if (textureflags & TEXF_ALPHA)
1882         {
1883                 for (i = 0;i < width * height;i++)
1884                         if (((unsigned char *)palette_bgra_alpha)[skindata[i]*4+3] < 255)
1885                                 break;
1886                 if (i < width * height)
1887                         skinframe->fog = R_SkinFrame_TextureForSkinLayer(skindata, width, height, va("%s_fog", skinframe->basename), palette_bgra_alpha, skinframe->textureflags, true); // fog mask
1888         }
1889
1890         return skinframe;
1891 }
1892
1893 skinframe_t *R_SkinFrame_LoadMissing(void)
1894 {
1895         skinframe_t *skinframe;
1896
1897         if (cls.state == ca_dedicated)
1898                 return NULL;
1899
1900         skinframe = R_SkinFrame_Find("missing", TEXF_PRECACHE, 0, 0, 0, true);
1901         skinframe->stain = NULL;
1902         skinframe->merged = NULL;
1903         skinframe->base = r_texture_notexture;
1904         skinframe->pants = NULL;
1905         skinframe->shirt = NULL;
1906         skinframe->nmap = r_texture_blanknormalmap;
1907         skinframe->gloss = NULL;
1908         skinframe->glow = NULL;
1909         skinframe->fog = NULL;
1910
1911         return skinframe;
1912 }
1913
1914 void gl_main_start(void)
1915 {
1916         memset(r_qwskincache, 0, sizeof(r_qwskincache));
1917         memset(r_qwskincache_skinframe, 0, sizeof(r_qwskincache_skinframe));
1918
1919         // set up r_skinframe loading system for textures
1920         memset(&r_skinframe, 0, sizeof(r_skinframe));
1921         r_skinframe.loadsequence = 1;
1922         Mem_ExpandableArray_NewArray(&r_skinframe.array, r_main_mempool, sizeof(skinframe_t), 256);
1923
1924         r_main_texturepool = R_AllocTexturePool();
1925         R_BuildBlankTextures();
1926         R_BuildNoTexture();
1927         if (gl_texturecubemap)
1928         {
1929                 R_BuildWhiteCube();
1930                 R_BuildNormalizationCube();
1931         }
1932         r_texture_fogattenuation = NULL;
1933         //r_texture_fogintensity = NULL;
1934         memset(&r_bloomstate, 0, sizeof(r_bloomstate));
1935         memset(&r_waterstate, 0, sizeof(r_waterstate));
1936         memset(r_glsl_permutations, 0, sizeof(r_glsl_permutations));
1937         memset(&r_svbsp, 0, sizeof (r_svbsp));
1938
1939         r_refdef.fogmasktable_density = 0;
1940 }
1941
1942 void gl_main_shutdown(void)
1943 {
1944         memset(r_qwskincache, 0, sizeof(r_qwskincache));
1945         memset(r_qwskincache_skinframe, 0, sizeof(r_qwskincache_skinframe));
1946
1947         // clear out the r_skinframe state
1948         Mem_ExpandableArray_FreeArray(&r_skinframe.array);
1949         memset(&r_skinframe, 0, sizeof(r_skinframe));
1950
1951         if (r_svbsp.nodes)
1952                 Mem_Free(r_svbsp.nodes);
1953         memset(&r_svbsp, 0, sizeof (r_svbsp));
1954         R_FreeTexturePool(&r_main_texturepool);
1955         r_texture_blanknormalmap = NULL;
1956         r_texture_white = NULL;
1957         r_texture_grey128 = NULL;
1958         r_texture_black = NULL;
1959         r_texture_whitecube = NULL;
1960         r_texture_normalizationcube = NULL;
1961         r_texture_fogattenuation = NULL;
1962         //r_texture_fogintensity = NULL;
1963         memset(&r_bloomstate, 0, sizeof(r_bloomstate));
1964         memset(&r_waterstate, 0, sizeof(r_waterstate));
1965         R_GLSL_Restart_f();
1966 }
1967
1968 extern void CL_ParseEntityLump(char *entitystring);
1969 void gl_main_newmap(void)
1970 {
1971         // FIXME: move this code to client
1972         int l;
1973         char *entities, entname[MAX_QPATH];
1974         if (cl.worldmodel)
1975         {
1976                 strlcpy(entname, cl.worldmodel->name, sizeof(entname));
1977                 l = (int)strlen(entname) - 4;
1978                 if (l >= 0 && !strcmp(entname + l, ".bsp"))
1979                 {
1980                         memcpy(entname + l, ".ent", 5);
1981                         if ((entities = (char *)FS_LoadFile(entname, tempmempool, true, NULL)))
1982                         {
1983                                 CL_ParseEntityLump(entities);
1984                                 Mem_Free(entities);
1985                                 return;
1986                         }
1987                 }
1988                 if (cl.worldmodel->brush.entities)
1989                         CL_ParseEntityLump(cl.worldmodel->brush.entities);
1990         }
1991 }
1992
1993 void GL_Main_Init(void)
1994 {
1995         r_main_mempool = Mem_AllocPool("Renderer", 0, NULL);
1996
1997         Cmd_AddCommand("r_glsl_restart", R_GLSL_Restart_f, "unloads GLSL shaders, they will then be reloaded as needed");
1998         Cmd_AddCommand("r_glsl_dumpshader", R_GLSL_DumpShader_f, "dumps the engine internal default.glsl shader into glsl/default.glsl");
1999         // FIXME: the client should set up r_refdef.fog stuff including the fogmasktable
2000         if (gamemode == GAME_NEHAHRA)
2001         {
2002                 Cvar_RegisterVariable (&gl_fogenable);
2003                 Cvar_RegisterVariable (&gl_fogdensity);
2004                 Cvar_RegisterVariable (&gl_fogred);
2005                 Cvar_RegisterVariable (&gl_foggreen);
2006                 Cvar_RegisterVariable (&gl_fogblue);
2007                 Cvar_RegisterVariable (&gl_fogstart);
2008                 Cvar_RegisterVariable (&gl_fogend);
2009                 Cvar_RegisterVariable (&gl_skyclip);
2010         }
2011         Cvar_RegisterVariable(&r_depthfirst);
2012         Cvar_RegisterVariable(&r_nearclip);
2013         Cvar_RegisterVariable(&r_showbboxes);
2014         Cvar_RegisterVariable(&r_showsurfaces);
2015         Cvar_RegisterVariable(&r_showtris);
2016         Cvar_RegisterVariable(&r_shownormals);
2017         Cvar_RegisterVariable(&r_showlighting);
2018         Cvar_RegisterVariable(&r_showshadowvolumes);
2019         Cvar_RegisterVariable(&r_showcollisionbrushes);
2020         Cvar_RegisterVariable(&r_showcollisionbrushes_polygonfactor);
2021         Cvar_RegisterVariable(&r_showcollisionbrushes_polygonoffset);
2022         Cvar_RegisterVariable(&r_showdisabledepthtest);
2023         Cvar_RegisterVariable(&r_drawportals);
2024         Cvar_RegisterVariable(&r_drawentities);
2025         Cvar_RegisterVariable(&r_cullentities_trace);
2026         Cvar_RegisterVariable(&r_cullentities_trace_samples);
2027         Cvar_RegisterVariable(&r_cullentities_trace_enlarge);
2028         Cvar_RegisterVariable(&r_cullentities_trace_delay);
2029         Cvar_RegisterVariable(&r_drawviewmodel);
2030         Cvar_RegisterVariable(&r_speeds);
2031         Cvar_RegisterVariable(&r_fullbrights);
2032         Cvar_RegisterVariable(&r_wateralpha);
2033         Cvar_RegisterVariable(&r_dynamic);
2034         Cvar_RegisterVariable(&r_fullbright);
2035         Cvar_RegisterVariable(&r_shadows);
2036         Cvar_RegisterVariable(&r_shadows_throwdistance);
2037         Cvar_RegisterVariable(&r_q1bsp_skymasking);
2038         Cvar_RegisterVariable(&r_polygonoffset_submodel_factor);
2039         Cvar_RegisterVariable(&r_polygonoffset_submodel_offset);
2040         Cvar_RegisterVariable(&r_fog_exp2);
2041         Cvar_RegisterVariable(&r_textureunits);
2042         Cvar_RegisterVariable(&r_glsl);
2043         Cvar_RegisterVariable(&r_glsl_offsetmapping);
2044         Cvar_RegisterVariable(&r_glsl_offsetmapping_reliefmapping);
2045         Cvar_RegisterVariable(&r_glsl_offsetmapping_scale);
2046         Cvar_RegisterVariable(&r_glsl_deluxemapping);
2047         Cvar_RegisterVariable(&r_water);
2048         Cvar_RegisterVariable(&r_water_resolutionmultiplier);
2049         Cvar_RegisterVariable(&r_water_clippingplanebias);
2050         Cvar_RegisterVariable(&r_water_refractdistort);
2051         Cvar_RegisterVariable(&r_water_reflectdistort);
2052         Cvar_RegisterVariable(&r_lerpsprites);
2053         Cvar_RegisterVariable(&r_lerpmodels);
2054         Cvar_RegisterVariable(&r_lerplightstyles);
2055         Cvar_RegisterVariable(&r_waterscroll);
2056         Cvar_RegisterVariable(&r_bloom);
2057         Cvar_RegisterVariable(&r_bloom_colorscale);
2058         Cvar_RegisterVariable(&r_bloom_brighten);
2059         Cvar_RegisterVariable(&r_bloom_blur);
2060         Cvar_RegisterVariable(&r_bloom_resolution);
2061         Cvar_RegisterVariable(&r_bloom_colorexponent);
2062         Cvar_RegisterVariable(&r_bloom_colorsubtract);
2063         Cvar_RegisterVariable(&r_hdr);
2064         Cvar_RegisterVariable(&r_hdr_scenebrightness);
2065         Cvar_RegisterVariable(&r_glsl_contrastboost);
2066         Cvar_RegisterVariable(&r_hdr_glowintensity);
2067         Cvar_RegisterVariable(&r_hdr_range);
2068         Cvar_RegisterVariable(&r_smoothnormals_areaweighting);
2069         Cvar_RegisterVariable(&developer_texturelogging);
2070         Cvar_RegisterVariable(&gl_lightmaps);
2071         Cvar_RegisterVariable(&r_test);
2072         Cvar_RegisterVariable(&r_batchmode);
2073         if (gamemode == GAME_NEHAHRA || gamemode == GAME_TENEBRAE)
2074                 Cvar_SetValue("r_fullbrights", 0);
2075         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
2076
2077         Cvar_RegisterVariable(&r_track_sprites);
2078         Cvar_RegisterVariable(&r_track_sprites_flags);
2079         Cvar_RegisterVariable(&r_track_sprites_scalew);
2080         Cvar_RegisterVariable(&r_track_sprites_scaleh);
2081 }
2082
2083 extern void R_Textures_Init(void);
2084 extern void GL_Draw_Init(void);
2085 extern void GL_Main_Init(void);
2086 extern void R_Shadow_Init(void);
2087 extern void R_Sky_Init(void);
2088 extern void GL_Surf_Init(void);
2089 extern void R_Particles_Init(void);
2090 extern void R_Explosion_Init(void);
2091 extern void gl_backend_init(void);
2092 extern void Sbar_Init(void);
2093 extern void R_LightningBeams_Init(void);
2094 extern void Mod_RenderInit(void);
2095
2096 void Render_Init(void)
2097 {
2098         gl_backend_init();
2099         R_Textures_Init();
2100         GL_Main_Init();
2101         GL_Draw_Init();
2102         R_Shadow_Init();
2103         R_Sky_Init();
2104         GL_Surf_Init();
2105         Sbar_Init();
2106         R_Particles_Init();
2107         R_Explosion_Init();
2108         R_LightningBeams_Init();
2109         Mod_RenderInit();
2110 }
2111
2112 /*
2113 ===============
2114 GL_Init
2115 ===============
2116 */
2117 extern char *ENGINE_EXTENSIONS;
2118 void GL_Init (void)
2119 {
2120         VID_CheckExtensions();
2121
2122         // LordHavoc: report supported extensions
2123         Con_DPrintf("\nQuakeC extensions for server and client: %s\nQuakeC extensions for menu: %s\n", vm_sv_extensions, vm_m_extensions );
2124
2125         // clear to black (loading plaque will be seen over this)
2126         CHECKGLERROR
2127         qglClearColor(0,0,0,1);CHECKGLERROR
2128         qglClear(GL_COLOR_BUFFER_BIT);CHECKGLERROR
2129 }
2130
2131 int R_CullBox(const vec3_t mins, const vec3_t maxs)
2132 {
2133         int i;
2134         mplane_t *p;
2135         for (i = 0;i < r_refdef.view.numfrustumplanes;i++)
2136         {
2137                 // skip nearclip plane, it often culls portals when you are very close, and is almost never useful
2138                 if (i == 4)
2139                         continue;
2140                 p = r_refdef.view.frustum + i;
2141                 switch(p->signbits)
2142                 {
2143                 default:
2144                 case 0:
2145                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2146                                 return true;
2147                         break;
2148                 case 1:
2149                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2150                                 return true;
2151                         break;
2152                 case 2:
2153                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2154                                 return true;
2155                         break;
2156                 case 3:
2157                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2158                                 return true;
2159                         break;
2160                 case 4:
2161                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2162                                 return true;
2163                         break;
2164                 case 5:
2165                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2166                                 return true;
2167                         break;
2168                 case 6:
2169                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2170                                 return true;
2171                         break;
2172                 case 7:
2173                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2174                                 return true;
2175                         break;
2176                 }
2177         }
2178         return false;
2179 }
2180
2181 int R_CullBoxCustomPlanes(const vec3_t mins, const vec3_t maxs, int numplanes, const mplane_t *planes)
2182 {
2183         int i;
2184         const mplane_t *p;
2185         for (i = 0;i < numplanes;i++)
2186         {
2187                 p = planes + i;
2188                 switch(p->signbits)
2189                 {
2190                 default:
2191                 case 0:
2192                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2193                                 return true;
2194                         break;
2195                 case 1:
2196                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*maxs[2] < p->dist)
2197                                 return true;
2198                         break;
2199                 case 2:
2200                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2201                                 return true;
2202                         break;
2203                 case 3:
2204                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*maxs[2] < p->dist)
2205                                 return true;
2206                         break;
2207                 case 4:
2208                         if (p->normal[0]*maxs[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2209                                 return true;
2210                         break;
2211                 case 5:
2212                         if (p->normal[0]*mins[0] + p->normal[1]*maxs[1] + p->normal[2]*mins[2] < p->dist)
2213                                 return true;
2214                         break;
2215                 case 6:
2216                         if (p->normal[0]*maxs[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2217                                 return true;
2218                         break;
2219                 case 7:
2220                         if (p->normal[0]*mins[0] + p->normal[1]*mins[1] + p->normal[2]*mins[2] < p->dist)
2221                                 return true;
2222                         break;
2223                 }
2224         }
2225         return false;
2226 }
2227
2228 //==================================================================================
2229
2230 static void R_View_UpdateEntityVisible (void)
2231 {
2232         int i, renderimask;
2233         entity_render_t *ent;
2234
2235         if (!r_drawentities.integer)
2236                 return;
2237
2238         renderimask = r_refdef.envmap ? (RENDER_EXTERIORMODEL | RENDER_VIEWMODEL) : ((chase_active.integer || r_waterstate.renderingscene) ? RENDER_VIEWMODEL : RENDER_EXTERIORMODEL);
2239         if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.BoxTouchingVisibleLeafs)
2240         {
2241                 // worldmodel can check visibility
2242                 for (i = 0;i < r_refdef.scene.numentities;i++)
2243                 {
2244                         ent = r_refdef.scene.entities[i];
2245                         r_refdef.viewcache.entityvisible[i] = !(ent->flags & renderimask) && ((ent->model && ent->model->type == mod_sprite && (ent->model->sprite.sprnum_type == SPR_LABEL || ent->model->sprite.sprnum_type == SPR_LABEL_SCALE)) || !R_CullBox(ent->mins, ent->maxs)) && ((ent->effects & EF_NODEPTHTEST) || (ent->flags & RENDER_VIEWMODEL) || r_refdef.scene.worldmodel->brush.BoxTouchingVisibleLeafs(r_refdef.scene.worldmodel, r_refdef.viewcache.world_leafvisible, ent->mins, ent->maxs));
2246
2247                 }
2248                 if(r_cullentities_trace.integer && r_refdef.scene.worldmodel->brush.TraceLineOfSight)
2249                 {
2250                         for (i = 0;i < r_refdef.scene.numentities;i++)
2251                         {
2252                                 ent = r_refdef.scene.entities[i];
2253                                 if(r_refdef.viewcache.entityvisible[i] && !(ent->effects & EF_NODEPTHTEST) && !(ent->flags & RENDER_VIEWMODEL) && !(ent->model && (ent->model->name[0] == '*')))
2254                                 {
2255                                         if(Mod_CanSeeBox_Trace(r_cullentities_trace_samples.integer, r_cullentities_trace_enlarge.value, r_refdef.scene.worldmodel, r_refdef.view.origin, ent->mins, ent->maxs))
2256                                                 ent->last_trace_visibility = realtime;
2257                                         if(ent->last_trace_visibility < realtime - r_cullentities_trace_delay.value)
2258                                                 r_refdef.viewcache.entityvisible[i] = 0;
2259                                 }
2260                         }
2261                 }
2262         }
2263         else
2264         {
2265                 // no worldmodel or it can't check visibility
2266                 for (i = 0;i < r_refdef.scene.numentities;i++)
2267                 {
2268                         ent = r_refdef.scene.entities[i];
2269                         r_refdef.viewcache.entityvisible[i] = !(ent->flags & renderimask) && ((ent->model && ent->model->type == mod_sprite && (ent->model->sprite.sprnum_type == SPR_LABEL || ent->model->sprite.sprnum_type == SPR_LABEL_SCALE)) || !R_CullBox(ent->mins, ent->maxs));
2270                 }
2271         }
2272 }
2273
2274 // only used if skyrendermasked, and normally returns false
2275 int R_DrawBrushModelsSky (void)
2276 {
2277         int i, sky;
2278         entity_render_t *ent;
2279
2280         if (!r_drawentities.integer)
2281                 return false;
2282
2283         sky = false;
2284         for (i = 0;i < r_refdef.scene.numentities;i++)
2285         {
2286                 if (!r_refdef.viewcache.entityvisible[i])
2287                         continue;
2288                 ent = r_refdef.scene.entities[i];
2289                 if (!ent->model || !ent->model->DrawSky)
2290                         continue;
2291                 ent->model->DrawSky(ent);
2292                 sky = true;
2293         }
2294         return sky;
2295 }
2296
2297 static void R_DrawNoModel(entity_render_t *ent);
2298 static void R_DrawModels(void)
2299 {
2300         int i;
2301         entity_render_t *ent;
2302
2303         if (!r_drawentities.integer)
2304                 return;
2305
2306         for (i = 0;i < r_refdef.scene.numentities;i++)
2307         {
2308                 if (!r_refdef.viewcache.entityvisible[i])
2309                         continue;
2310                 ent = r_refdef.scene.entities[i];
2311                 r_refdef.stats.entities++;
2312                 if (ent->model && ent->model->Draw != NULL)
2313                         ent->model->Draw(ent);
2314                 else
2315                         R_DrawNoModel(ent);
2316         }
2317 }
2318
2319 static void R_DrawModelsDepth(void)
2320 {
2321         int i;
2322         entity_render_t *ent;
2323
2324         if (!r_drawentities.integer)
2325                 return;
2326
2327         for (i = 0;i < r_refdef.scene.numentities;i++)
2328         {
2329                 if (!r_refdef.viewcache.entityvisible[i])
2330                         continue;
2331                 ent = r_refdef.scene.entities[i];
2332                 if (ent->model && ent->model->DrawDepth != NULL)
2333                         ent->model->DrawDepth(ent);
2334         }
2335 }
2336
2337 static void R_DrawModelsDebug(void)
2338 {
2339         int i;
2340         entity_render_t *ent;
2341
2342         if (!r_drawentities.integer)
2343                 return;
2344
2345         for (i = 0;i < r_refdef.scene.numentities;i++)
2346         {
2347                 if (!r_refdef.viewcache.entityvisible[i])
2348                         continue;
2349                 ent = r_refdef.scene.entities[i];
2350                 if (ent->model && ent->model->DrawDebug != NULL)
2351                         ent->model->DrawDebug(ent);
2352         }
2353 }
2354
2355 static void R_DrawModelsAddWaterPlanes(void)
2356 {
2357         int i;
2358         entity_render_t *ent;
2359
2360         if (!r_drawentities.integer)
2361                 return;
2362
2363         for (i = 0;i < r_refdef.scene.numentities;i++)
2364         {
2365                 if (!r_refdef.viewcache.entityvisible[i])
2366                         continue;
2367                 ent = r_refdef.scene.entities[i];
2368                 if (ent->model && ent->model->DrawAddWaterPlanes != NULL)
2369                         ent->model->DrawAddWaterPlanes(ent);
2370         }
2371 }
2372
2373 static void R_View_SetFrustum(void)
2374 {
2375         int i;
2376         double slopex, slopey;
2377
2378         // break apart the view matrix into vectors for various purposes
2379         Matrix4x4_ToVectors(&r_refdef.view.matrix, r_refdef.view.forward, r_refdef.view.left, r_refdef.view.up, r_refdef.view.origin);
2380         VectorNegate(r_refdef.view.left, r_refdef.view.right);
2381
2382 #if 0
2383         r_refdef.view.frustum[0].normal[0] = 0 - 1.0 / r_refdef.view.frustum_x;
2384         r_refdef.view.frustum[0].normal[1] = 0 - 0;
2385         r_refdef.view.frustum[0].normal[2] = -1 - 0;
2386         r_refdef.view.frustum[1].normal[0] = 0 + 1.0 / r_refdef.view.frustum_x;
2387         r_refdef.view.frustum[1].normal[1] = 0 + 0;
2388         r_refdef.view.frustum[1].normal[2] = -1 + 0;
2389         r_refdef.view.frustum[2].normal[0] = 0 - 0;
2390         r_refdef.view.frustum[2].normal[1] = 0 - 1.0 / r_refdef.view.frustum_y;
2391         r_refdef.view.frustum[2].normal[2] = -1 - 0;
2392         r_refdef.view.frustum[3].normal[0] = 0 + 0;
2393         r_refdef.view.frustum[3].normal[1] = 0 + 1.0 / r_refdef.view.frustum_y;
2394         r_refdef.view.frustum[3].normal[2] = -1 + 0;
2395 #endif
2396
2397 #if 0
2398         zNear = r_refdef.nearclip;
2399         nudge = 1.0 - 1.0 / (1<<23);
2400         r_refdef.view.frustum[4].normal[0] = 0 - 0;
2401         r_refdef.view.frustum[4].normal[1] = 0 - 0;
2402         r_refdef.view.frustum[4].normal[2] = -1 - -nudge;
2403         r_refdef.view.frustum[4].dist = 0 - -2 * zNear * nudge;
2404         r_refdef.view.frustum[5].normal[0] = 0 + 0;
2405         r_refdef.view.frustum[5].normal[1] = 0 + 0;
2406         r_refdef.view.frustum[5].normal[2] = -1 + -nudge;
2407         r_refdef.view.frustum[5].dist = 0 + -2 * zNear * nudge;
2408 #endif
2409
2410
2411
2412 #if 0
2413         r_refdef.view.frustum[0].normal[0] = m[3] - m[0];
2414         r_refdef.view.frustum[0].normal[1] = m[7] - m[4];
2415         r_refdef.view.frustum[0].normal[2] = m[11] - m[8];
2416         r_refdef.view.frustum[0].dist = m[15] - m[12];
2417
2418         r_refdef.view.frustum[1].normal[0] = m[3] + m[0];
2419         r_refdef.view.frustum[1].normal[1] = m[7] + m[4];
2420         r_refdef.view.frustum[1].normal[2] = m[11] + m[8];
2421         r_refdef.view.frustum[1].dist = m[15] + m[12];
2422
2423         r_refdef.view.frustum[2].normal[0] = m[3] - m[1];
2424         r_refdef.view.frustum[2].normal[1] = m[7] - m[5];
2425         r_refdef.view.frustum[2].normal[2] = m[11] - m[9];
2426         r_refdef.view.frustum[2].dist = m[15] - m[13];
2427
2428         r_refdef.view.frustum[3].normal[0] = m[3] + m[1];
2429         r_refdef.view.frustum[3].normal[1] = m[7] + m[5];
2430         r_refdef.view.frustum[3].normal[2] = m[11] + m[9];
2431         r_refdef.view.frustum[3].dist = m[15] + m[13];
2432
2433         r_refdef.view.frustum[4].normal[0] = m[3] - m[2];
2434         r_refdef.view.frustum[4].normal[1] = m[7] - m[6];
2435         r_refdef.view.frustum[4].normal[2] = m[11] - m[10];
2436         r_refdef.view.frustum[4].dist = m[15] - m[14];
2437
2438         r_refdef.view.frustum[5].normal[0] = m[3] + m[2];
2439         r_refdef.view.frustum[5].normal[1] = m[7] + m[6];
2440         r_refdef.view.frustum[5].normal[2] = m[11] + m[10];
2441         r_refdef.view.frustum[5].dist = m[15] + m[14];
2442 #endif
2443
2444         if (r_refdef.view.useperspective)
2445         {
2446                 slopex = 1.0 / r_refdef.view.frustum_x;
2447                 slopey = 1.0 / r_refdef.view.frustum_y;
2448                 VectorMA(r_refdef.view.forward, -slopex, r_refdef.view.left, r_refdef.view.frustum[0].normal);
2449                 VectorMA(r_refdef.view.forward,  slopex, r_refdef.view.left, r_refdef.view.frustum[1].normal);
2450                 VectorMA(r_refdef.view.forward, -slopey, r_refdef.view.up  , r_refdef.view.frustum[2].normal);
2451                 VectorMA(r_refdef.view.forward,  slopey, r_refdef.view.up  , r_refdef.view.frustum[3].normal);
2452                 VectorCopy(r_refdef.view.forward, r_refdef.view.frustum[4].normal);
2453
2454                 // Leaving those out was a mistake, those were in the old code, and they
2455                 // fix a reproducable bug in this one: frustum culling got fucked up when viewmatrix was an identity matrix
2456                 // I couldn't reproduce it after adding those normalizations. --blub
2457                 VectorNormalize(r_refdef.view.frustum[0].normal);
2458                 VectorNormalize(r_refdef.view.frustum[1].normal);
2459                 VectorNormalize(r_refdef.view.frustum[2].normal);
2460                 VectorNormalize(r_refdef.view.frustum[3].normal);
2461
2462                 // calculate frustum corners, which are used to calculate deformed frustum planes for shadow caster culling
2463                 VectorMAMAMAM(1, r_refdef.view.origin, 1024, r_refdef.view.forward, -1024 * slopex, r_refdef.view.left, -1024 * slopey, r_refdef.view.up, r_refdef.view.frustumcorner[0]);
2464                 VectorMAMAMAM(1, r_refdef.view.origin, 1024, r_refdef.view.forward,  1024 * slopex, r_refdef.view.left, -1024 * slopey, r_refdef.view.up, r_refdef.view.frustumcorner[1]);
2465                 VectorMAMAMAM(1, r_refdef.view.origin, 1024, r_refdef.view.forward, -1024 * slopex, r_refdef.view.left,  1024 * slopey, r_refdef.view.up, r_refdef.view.frustumcorner[2]);
2466                 VectorMAMAMAM(1, r_refdef.view.origin, 1024, r_refdef.view.forward,  1024 * slopex, r_refdef.view.left,  1024 * slopey, r_refdef.view.up, r_refdef.view.frustumcorner[3]);
2467
2468                 r_refdef.view.frustum[0].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[0].normal);
2469                 r_refdef.view.frustum[1].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[1].normal);
2470                 r_refdef.view.frustum[2].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[2].normal);
2471                 r_refdef.view.frustum[3].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[3].normal);
2472                 r_refdef.view.frustum[4].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[4].normal) + r_refdef.nearclip;
2473         }
2474         else
2475         {
2476                 VectorScale(r_refdef.view.left, -r_refdef.view.ortho_x, r_refdef.view.frustum[0].normal);
2477                 VectorScale(r_refdef.view.left,  r_refdef.view.ortho_x, r_refdef.view.frustum[1].normal);
2478                 VectorScale(r_refdef.view.up, -r_refdef.view.ortho_y, r_refdef.view.frustum[2].normal);
2479                 VectorScale(r_refdef.view.up,  r_refdef.view.ortho_y, r_refdef.view.frustum[3].normal);
2480                 VectorCopy(r_refdef.view.forward, r_refdef.view.frustum[4].normal);
2481                 r_refdef.view.frustum[0].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[0].normal) + r_refdef.view.ortho_x;
2482                 r_refdef.view.frustum[1].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[1].normal) + r_refdef.view.ortho_x;
2483                 r_refdef.view.frustum[2].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[2].normal) + r_refdef.view.ortho_y;
2484                 r_refdef.view.frustum[3].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[3].normal) + r_refdef.view.ortho_y;
2485                 r_refdef.view.frustum[4].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[4].normal) + r_refdef.nearclip;
2486         }
2487         r_refdef.view.numfrustumplanes = 5;
2488
2489         if (r_refdef.view.useclipplane)
2490         {
2491                 r_refdef.view.numfrustumplanes = 6;
2492                 r_refdef.view.frustum[5] = r_refdef.view.clipplane;
2493         }
2494
2495         for (i = 0;i < r_refdef.view.numfrustumplanes;i++)
2496                 PlaneClassify(r_refdef.view.frustum + i);
2497
2498         // LordHavoc: note to all quake engine coders, Quake had a special case
2499         // for 90 degrees which assumed a square view (wrong), so I removed it,
2500         // Quake2 has it disabled as well.
2501
2502         // rotate R_VIEWFORWARD right by FOV_X/2 degrees
2503         //RotatePointAroundVector( r_refdef.view.frustum[0].normal, r_refdef.view.up, r_refdef.view.forward, -(90 - r_refdef.fov_x / 2));
2504         //r_refdef.view.frustum[0].dist = DotProduct (r_refdef.view.origin, frustum[0].normal);
2505         //PlaneClassify(&frustum[0]);
2506
2507         // rotate R_VIEWFORWARD left by FOV_X/2 degrees
2508         //RotatePointAroundVector( r_refdef.view.frustum[1].normal, r_refdef.view.up, r_refdef.view.forward, (90 - r_refdef.fov_x / 2));
2509         //r_refdef.view.frustum[1].dist = DotProduct (r_refdef.view.origin, frustum[1].normal);
2510         //PlaneClassify(&frustum[1]);
2511
2512         // rotate R_VIEWFORWARD up by FOV_X/2 degrees
2513         //RotatePointAroundVector( r_refdef.view.frustum[2].normal, r_refdef.view.left, r_refdef.view.forward, -(90 - r_refdef.fov_y / 2));
2514         //r_refdef.view.frustum[2].dist = DotProduct (r_refdef.view.origin, frustum[2].normal);
2515         //PlaneClassify(&frustum[2]);
2516
2517         // rotate R_VIEWFORWARD down by FOV_X/2 degrees
2518         //RotatePointAroundVector( r_refdef.view.frustum[3].normal, r_refdef.view.left, r_refdef.view.forward, (90 - r_refdef.fov_y / 2));
2519         //r_refdef.view.frustum[3].dist = DotProduct (r_refdef.view.origin, frustum[3].normal);
2520         //PlaneClassify(&frustum[3]);
2521
2522         // nearclip plane
2523         //VectorCopy(r_refdef.view.forward, r_refdef.view.frustum[4].normal);
2524         //r_refdef.view.frustum[4].dist = DotProduct (r_refdef.view.origin, frustum[4].normal) + r_nearclip.value;
2525         //PlaneClassify(&frustum[4]);
2526 }
2527
2528 void R_View_Update(void)
2529 {
2530         R_View_SetFrustum();
2531         R_View_WorldVisibility(r_refdef.view.useclipplane);
2532         R_View_UpdateEntityVisible();
2533 }
2534
2535 void R_SetupView(void)
2536 {
2537         if (!r_refdef.view.useperspective)
2538                 GL_SetupView_Mode_Ortho(-r_refdef.view.ortho_x, -r_refdef.view.ortho_y, r_refdef.view.ortho_x, r_refdef.view.ortho_y, -r_refdef.farclip, r_refdef.farclip);
2539         else if (r_refdef.rtworldshadows || r_refdef.rtdlightshadows)
2540                 GL_SetupView_Mode_PerspectiveInfiniteFarClip(r_refdef.view.frustum_x, r_refdef.view.frustum_y, r_refdef.nearclip);
2541         else
2542                 GL_SetupView_Mode_Perspective(r_refdef.view.frustum_x, r_refdef.view.frustum_y, r_refdef.nearclip, r_refdef.farclip);
2543
2544         GL_SetupView_Orientation_FromEntity(&r_refdef.view.matrix);
2545
2546         if (r_refdef.view.useclipplane)
2547         {
2548                 // LordHavoc: couldn't figure out how to make this approach the
2549                 vec_t dist = r_refdef.view.clipplane.dist - r_water_clippingplanebias.value;
2550                 vec_t viewdist = DotProduct(r_refdef.view.origin, r_refdef.view.clipplane.normal);
2551                 if (viewdist < r_refdef.view.clipplane.dist + r_water_clippingplanebias.value)
2552                         dist = r_refdef.view.clipplane.dist;
2553                 GL_SetupView_ApplyCustomNearClipPlane(r_refdef.view.clipplane.normal[0], r_refdef.view.clipplane.normal[1], r_refdef.view.clipplane.normal[2], dist);
2554         }
2555 }
2556
2557 void R_ResetViewRendering2D(void)
2558 {
2559         if (gl_support_fragment_shader)
2560         {
2561                 qglUseProgramObjectARB(0);CHECKGLERROR
2562         }
2563
2564         DrawQ_Finish();
2565
2566         // GL is weird because it's bottom to top, r_refdef.view.y is top to bottom
2567         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
2568         GL_SetupView_Mode_Ortho(0, 0, 1, 1, -10, 100);
2569         GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
2570         GL_Color(1, 1, 1, 1);
2571         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
2572         GL_BlendFunc(GL_ONE, GL_ZERO);
2573         GL_AlphaTest(false);
2574         GL_ScissorTest(false);
2575         GL_DepthMask(false);
2576         GL_DepthRange(0, 1);
2577         GL_DepthTest(false);
2578         R_Mesh_Matrix(&identitymatrix);
2579         R_Mesh_ResetTextureState();
2580         GL_PolygonOffset(0, 0);
2581         qglEnable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
2582         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
2583         qglDisable(GL_STENCIL_TEST);CHECKGLERROR
2584         qglStencilMask(~0);CHECKGLERROR
2585         qglStencilFunc(GL_ALWAYS, 128, ~0);CHECKGLERROR
2586         qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
2587         GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
2588 }
2589
2590 void R_ResetViewRendering3D(void)
2591 {
2592         if (gl_support_fragment_shader)
2593         {
2594                 qglUseProgramObjectARB(0);CHECKGLERROR
2595         }
2596
2597         DrawQ_Finish();
2598
2599         // GL is weird because it's bottom to top, r_refdef.view.y is top to bottom
2600         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
2601         R_SetupView();
2602         GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
2603         GL_Color(1, 1, 1, 1);
2604         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
2605         GL_BlendFunc(GL_ONE, GL_ZERO);
2606         GL_AlphaTest(false);
2607         GL_ScissorTest(true);
2608         GL_DepthMask(true);
2609         GL_DepthRange(0, 1);
2610         GL_DepthTest(true);
2611         R_Mesh_Matrix(&identitymatrix);
2612         R_Mesh_ResetTextureState();
2613         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
2614         qglEnable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
2615         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
2616         qglDisable(GL_STENCIL_TEST);CHECKGLERROR
2617         qglStencilMask(~0);CHECKGLERROR
2618         qglStencilFunc(GL_ALWAYS, 128, ~0);CHECKGLERROR
2619         qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
2620         GL_CullFace(r_refdef.view.cullface_back);
2621 }
2622
2623 /*
2624         R_Bloom_SetupShader(
2625 "// bloom shader\n"
2626 "// written by Forest 'LordHavoc' Hale\n"
2627 "\n"
2628 "// common definitions between vertex shader and fragment shader:\n"
2629 "\n"
2630 "#ifdef __GLSL_CG_DATA_TYPES\n"
2631 "#define myhalf half\n"
2632 "#define myhalf2 half2\n"
2633 "#define myhalf3 half3\n"
2634 "#define myhalf4 half4\n"
2635 "#else\n"
2636 "#define myhalf float\n"
2637 "#define myhalf2 vec2\n"
2638 "#define myhalf3 vec3\n"
2639 "#define myhalf4 vec4\n"
2640 "#endif\n"
2641 "\n"
2642 "varying vec2 ScreenTexCoord;\n"
2643 "varying vec2 BloomTexCoord;\n"
2644 "\n"
2645 "\n"
2646 "\n"
2647 "\n"
2648 "// vertex shader specific:\n"
2649 "#ifdef VERTEX_SHADER\n"
2650 "\n"
2651 "void main(void)\n"
2652 "{\n"
2653 "       ScreenTexCoord = vec2(gl_MultiTexCoord0);\n"
2654 "       BloomTexCoord = vec2(gl_MultiTexCoord1);\n"
2655 "       // transform vertex to camera space, using ftransform to match non-VS\n"
2656 "       // rendering\n"
2657 "       gl_Position = ftransform();\n"
2658 "}\n"
2659 "\n"
2660 "#endif // VERTEX_SHADER\n"
2661 "\n"
2662 "\n"
2663 "\n"
2664 "\n"
2665 "// fragment shader specific:\n"
2666 "#ifdef FRAGMENT_SHADER\n"
2667 "\n"
2668 "void main(void)\n"
2669 "{\n"
2670 "       int x, y;
2671 "       myhalf3 color = myhalf3(texture2D(Texture_Screen, ScreenTexCoord));\n"
2672 "       for (x = -BLUR_X;x <= BLUR_X;x++)
2673 "       color.rgb += myhalf3(texture2D(Texture_Bloom, BloomTexCoord));\n"
2674 "       color.rgb += myhalf3(texture2D(Texture_Bloom, BloomTexCoord));\n"
2675 "       color.rgb += myhalf3(texture2D(Texture_Bloom, BloomTexCoord));\n"
2676 "       color.rgb += myhalf3(texture2D(Texture_Bloom, BloomTexCoord));\n"
2677
2678 "       gl_FragColor = vec4(color);\n"
2679 "}\n"
2680 "\n"
2681 "#endif // FRAGMENT_SHADER\n"
2682 */
2683
2684 void R_RenderScene(qboolean addwaterplanes);
2685
2686 static void R_Water_StartFrame(void)
2687 {
2688         int i;
2689         int waterwidth, waterheight, texturewidth, textureheight;
2690         r_waterstate_waterplane_t *p;
2691
2692         // set waterwidth and waterheight to the water resolution that will be
2693         // used (often less than the screen resolution for faster rendering)
2694         waterwidth = (int)bound(1, r_refdef.view.width * r_water_resolutionmultiplier.value, r_refdef.view.width);
2695         waterheight = (int)bound(1, r_refdef.view.height * r_water_resolutionmultiplier.value, r_refdef.view.height);
2696
2697         // calculate desired texture sizes
2698         // can't use water if the card does not support the texture size
2699         if (!r_water.integer || !r_glsl.integer || !gl_support_fragment_shader || waterwidth > gl_max_texture_size || waterheight > gl_max_texture_size)
2700                 texturewidth = textureheight = waterwidth = waterheight = 0;
2701         else if (gl_support_arb_texture_non_power_of_two)
2702         {
2703                 texturewidth = waterwidth;
2704                 textureheight = waterheight;
2705         }
2706         else
2707         {
2708                 for (texturewidth   = 1;texturewidth   < waterwidth ;texturewidth   *= 2);
2709                 for (textureheight  = 1;textureheight  < waterheight;textureheight  *= 2);
2710         }
2711
2712         // allocate textures as needed
2713         if (r_waterstate.waterwidth != waterwidth || r_waterstate.waterheight != waterheight || r_waterstate.texturewidth != texturewidth || r_waterstate.textureheight != textureheight)
2714         {
2715                 r_waterstate.maxwaterplanes = MAX_WATERPLANES;
2716                 for (i = 0, p = r_waterstate.waterplanes;i < r_waterstate.maxwaterplanes;i++, p++)
2717                 {
2718                         if (p->texture_refraction)
2719                                 R_FreeTexture(p->texture_refraction);
2720                         p->texture_refraction = NULL;
2721                         if (p->texture_reflection)
2722                                 R_FreeTexture(p->texture_reflection);
2723                         p->texture_reflection = NULL;
2724                 }
2725                 memset(&r_waterstate, 0, sizeof(r_waterstate));
2726                 r_waterstate.waterwidth = waterwidth;
2727                 r_waterstate.waterheight = waterheight;
2728                 r_waterstate.texturewidth = texturewidth;
2729                 r_waterstate.textureheight = textureheight;
2730         }
2731
2732         if (r_waterstate.waterwidth)
2733         {
2734                 r_waterstate.enabled = true;
2735
2736                 // set up variables that will be used in shader setup
2737                 r_waterstate.screenscale[0] = 0.5f * (float)waterwidth / (float)texturewidth;
2738                 r_waterstate.screenscale[1] = 0.5f * (float)waterheight / (float)textureheight;
2739                 r_waterstate.screencenter[0] = 0.5f * (float)waterwidth / (float)texturewidth;
2740                 r_waterstate.screencenter[1] = 0.5f * (float)waterheight / (float)textureheight;
2741         }
2742
2743         r_waterstate.maxwaterplanes = MAX_WATERPLANES;
2744         r_waterstate.numwaterplanes = 0;
2745 }
2746
2747 static void R_Water_AddWaterPlane(msurface_t *surface)
2748 {
2749         int triangleindex, planeindex;
2750         const int *e;
2751         vec3_t vert[3];
2752         vec3_t normal;
2753         vec3_t center;
2754         r_waterstate_waterplane_t *p;
2755         // just use the first triangle with a valid normal for any decisions
2756         VectorClear(normal);
2757         for (triangleindex = 0, e = rsurface.modelelement3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2758         {
2759                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[0]*3, vert[0]);
2760                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[1]*3, vert[1]);
2761                 Matrix4x4_Transform(&rsurface.matrix, rsurface.modelvertex3f + e[2]*3, vert[2]);
2762                 TriangleNormal(vert[0], vert[1], vert[2], normal);
2763                 if (VectorLength2(normal) >= 0.001)
2764                         break;
2765         }
2766
2767         // find a matching plane if there is one
2768         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
2769                 if (fabs(PlaneDiff(vert[0], &p->plane)) < 1 && fabs(PlaneDiff(vert[1], &p->plane)) < 1 && fabs(PlaneDiff(vert[2], &p->plane)) < 1)
2770                         break;
2771         if (planeindex >= r_waterstate.maxwaterplanes)
2772                 return; // nothing we can do, out of planes
2773
2774         // if this triangle does not fit any known plane rendered this frame, add one
2775         if (planeindex >= r_waterstate.numwaterplanes)
2776         {
2777                 // store the new plane
2778                 r_waterstate.numwaterplanes++;
2779                 VectorCopy(normal, p->plane.normal);
2780                 VectorNormalize(p->plane.normal);
2781                 p->plane.dist = DotProduct(vert[0], p->plane.normal);
2782                 PlaneClassify(&p->plane);
2783                 // flip the plane if it does not face the viewer
2784                 if (PlaneDiff(r_refdef.view.origin, &p->plane) < 0)
2785                 {
2786                         VectorNegate(p->plane.normal, p->plane.normal);
2787                         p->plane.dist *= -1;
2788                         PlaneClassify(&p->plane);
2789                 }
2790                 // clear materialflags and pvs
2791                 p->materialflags = 0;
2792                 p->pvsvalid = false;
2793         }
2794         // merge this surface's materialflags into the waterplane
2795         p->materialflags |= surface->texture->currentframe->currentmaterialflags;
2796         // merge this surface's PVS into the waterplane
2797         VectorMAM(0.5f, surface->mins, 0.5f, surface->maxs, center);
2798         if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.FatPVS
2799          && r_refdef.scene.worldmodel->brush.PointInLeaf && r_refdef.scene.worldmodel->brush.PointInLeaf(r_refdef.scene.worldmodel, center)->clusterindex >= 0)
2800         {
2801                 r_refdef.scene.worldmodel->brush.FatPVS(r_refdef.scene.worldmodel, center, 2, p->pvsbits, sizeof(p->pvsbits), p->pvsvalid);
2802                 p->pvsvalid = true;
2803         }
2804 }
2805
2806 static void R_Water_ProcessPlanes(void)
2807 {
2808         r_refdef_view_t originalview;
2809         int planeindex;
2810         r_waterstate_waterplane_t *p;
2811
2812         originalview = r_refdef.view;
2813
2814         // make sure enough textures are allocated
2815         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
2816         {
2817                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
2818                 {
2819                         if (!p->texture_refraction)
2820                                 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);
2821                         if (!p->texture_refraction)
2822                                 goto error;
2823                 }
2824
2825                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION))
2826                 {
2827                         if (!p->texture_reflection)
2828                                 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);
2829                         if (!p->texture_reflection)
2830                                 goto error;
2831                 }
2832         }
2833
2834         // render views
2835         for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
2836         {
2837                 r_refdef.view.showdebug = false;
2838                 r_refdef.view.width = r_waterstate.waterwidth;
2839                 r_refdef.view.height = r_waterstate.waterheight;
2840                 r_refdef.view.useclipplane = true;
2841                 r_waterstate.renderingscene = true;
2842
2843                 // render the normal view scene and copy into texture
2844                 // (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)
2845                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
2846                 {
2847                         r_refdef.view.clipplane = p->plane;
2848                         VectorNegate(r_refdef.view.clipplane.normal, r_refdef.view.clipplane.normal);
2849                         r_refdef.view.clipplane.dist = -r_refdef.view.clipplane.dist;
2850                         PlaneClassify(&r_refdef.view.clipplane);
2851
2852                         R_RenderScene(false);
2853
2854                         // copy view into the screen texture
2855                         R_Mesh_TexBind(0, R_GetTexture(p->texture_refraction));
2856                         GL_ActiveTexture(0);
2857                         CHECKGLERROR
2858                         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
2859                 }
2860
2861                 if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION))
2862                 {
2863                         // render reflected scene and copy into texture
2864                         Matrix4x4_Reflect(&r_refdef.view.matrix, p->plane.normal[0], p->plane.normal[1], p->plane.normal[2], p->plane.dist, -2);
2865                         r_refdef.view.clipplane = p->plane;
2866                         // reverse the cullface settings for this render
2867                         r_refdef.view.cullface_front = GL_FRONT;
2868                         r_refdef.view.cullface_back = GL_BACK;
2869                         if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.num_pvsclusterbytes)
2870                         {
2871                                 r_refdef.view.usecustompvs = true;
2872                                 if (p->pvsvalid)
2873                                         memcpy(r_refdef.viewcache.world_pvsbits, p->pvsbits, r_refdef.scene.worldmodel->brush.num_pvsclusterbytes);
2874                                 else
2875                                         memset(r_refdef.viewcache.world_pvsbits, 0xFF, r_refdef.scene.worldmodel->brush.num_pvsclusterbytes);
2876                         }
2877
2878                         R_ResetViewRendering3D();
2879                         R_ClearScreen(r_refdef.fogenabled);
2880                         if (r_timereport_active)
2881                                 R_TimeReport("viewclear");
2882
2883                         R_RenderScene(false);
2884
2885                         R_Mesh_TexBind(0, R_GetTexture(p->texture_reflection));
2886                         GL_ActiveTexture(0);
2887                         CHECKGLERROR
2888                         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
2889
2890                         R_ResetViewRendering3D();
2891                         R_ClearScreen(r_refdef.fogenabled);
2892                         if (r_timereport_active)
2893                                 R_TimeReport("viewclear");
2894                 }
2895
2896                 r_refdef.view = originalview;
2897                 r_refdef.view.clear = true;
2898                 r_waterstate.renderingscene = false;
2899         }
2900         return;
2901 error:
2902         r_refdef.view = originalview;
2903         r_waterstate.renderingscene = false;
2904         Cvar_SetValueQuick(&r_water, 0);
2905         Con_Printf("R_Water_ProcessPlanes: Error: texture creation failed!  Turned off r_water.\n");
2906         return;
2907 }
2908
2909 void R_Bloom_StartFrame(void)
2910 {
2911         int bloomtexturewidth, bloomtextureheight, screentexturewidth, screentextureheight;
2912
2913         // set bloomwidth and bloomheight to the bloom resolution that will be
2914         // used (often less than the screen resolution for faster rendering)
2915         r_bloomstate.bloomwidth = bound(1, r_bloom_resolution.integer, r_refdef.view.width);
2916         r_bloomstate.bloomheight = r_bloomstate.bloomwidth * r_refdef.view.height / r_refdef.view.width;
2917         r_bloomstate.bloomheight = bound(1, r_bloomstate.bloomheight, r_refdef.view.height);
2918
2919         // calculate desired texture sizes
2920         if (gl_support_arb_texture_non_power_of_two)
2921         {
2922                 screentexturewidth = r_refdef.view.width;
2923                 screentextureheight = r_refdef.view.height;
2924                 bloomtexturewidth = r_bloomstate.bloomwidth;
2925                 bloomtextureheight = r_bloomstate.bloomheight;
2926         }
2927         else
2928         {
2929                 for (screentexturewidth  = 1;screentexturewidth  < vid.width               ;screentexturewidth  *= 2);
2930                 for (screentextureheight = 1;screentextureheight < vid.height              ;screentextureheight *= 2);
2931                 for (bloomtexturewidth   = 1;bloomtexturewidth   < r_bloomstate.bloomwidth ;bloomtexturewidth   *= 2);
2932                 for (bloomtextureheight  = 1;bloomtextureheight  < r_bloomstate.bloomheight;bloomtextureheight  *= 2);
2933         }
2934
2935         if (r_hdr.integer)
2936         {
2937                 screentexturewidth = screentextureheight = 0;
2938         }
2939         else if (r_bloom.integer)
2940         {
2941         }
2942         else
2943         {
2944                 screentexturewidth = screentextureheight = 0;
2945                 bloomtexturewidth = bloomtextureheight = 0;
2946         }
2947
2948         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)
2949         {
2950                 // can't use bloom if the parameters are too weird
2951                 // can't use bloom if the card does not support the texture size
2952                 if (r_bloomstate.texture_screen)
2953                         R_FreeTexture(r_bloomstate.texture_screen);
2954                 if (r_bloomstate.texture_bloom)
2955                         R_FreeTexture(r_bloomstate.texture_bloom);
2956                 memset(&r_bloomstate, 0, sizeof(r_bloomstate));
2957                 return;
2958         }
2959
2960         r_bloomstate.enabled = true;
2961         r_bloomstate.hdr = r_hdr.integer != 0;
2962
2963         // allocate textures as needed
2964         if (r_bloomstate.screentexturewidth != screentexturewidth || r_bloomstate.screentextureheight != screentextureheight)
2965         {
2966                 if (r_bloomstate.texture_screen)
2967                         R_FreeTexture(r_bloomstate.texture_screen);
2968                 r_bloomstate.texture_screen = NULL;
2969                 r_bloomstate.screentexturewidth = screentexturewidth;
2970                 r_bloomstate.screentextureheight = screentextureheight;
2971                 if (r_bloomstate.screentexturewidth && r_bloomstate.screentextureheight)
2972                         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);
2973         }
2974         if (r_bloomstate.bloomtexturewidth != bloomtexturewidth || r_bloomstate.bloomtextureheight != bloomtextureheight)
2975         {
2976                 if (r_bloomstate.texture_bloom)
2977                         R_FreeTexture(r_bloomstate.texture_bloom);
2978                 r_bloomstate.texture_bloom = NULL;
2979                 r_bloomstate.bloomtexturewidth = bloomtexturewidth;
2980                 r_bloomstate.bloomtextureheight = bloomtextureheight;
2981                 if (r_bloomstate.bloomtexturewidth && r_bloomstate.bloomtextureheight)
2982                         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);
2983         }
2984
2985         // set up a texcoord array for the full resolution screen image
2986         // (we have to keep this around to copy back during final render)
2987         r_bloomstate.screentexcoord2f[0] = 0;
2988         r_bloomstate.screentexcoord2f[1] = (float)r_refdef.view.height / (float)r_bloomstate.screentextureheight;
2989         r_bloomstate.screentexcoord2f[2] = (float)r_refdef.view.width / (float)r_bloomstate.screentexturewidth;
2990         r_bloomstate.screentexcoord2f[3] = (float)r_refdef.view.height / (float)r_bloomstate.screentextureheight;
2991         r_bloomstate.screentexcoord2f[4] = (float)r_refdef.view.width / (float)r_bloomstate.screentexturewidth;
2992         r_bloomstate.screentexcoord2f[5] = 0;
2993         r_bloomstate.screentexcoord2f[6] = 0;
2994         r_bloomstate.screentexcoord2f[7] = 0;
2995
2996         // set up a texcoord array for the reduced resolution bloom image
2997         // (which will be additive blended over the screen image)
2998         r_bloomstate.bloomtexcoord2f[0] = 0;
2999         r_bloomstate.bloomtexcoord2f[1] = (float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3000         r_bloomstate.bloomtexcoord2f[2] = (float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
3001         r_bloomstate.bloomtexcoord2f[3] = (float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3002         r_bloomstate.bloomtexcoord2f[4] = (float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
3003         r_bloomstate.bloomtexcoord2f[5] = 0;
3004         r_bloomstate.bloomtexcoord2f[6] = 0;
3005         r_bloomstate.bloomtexcoord2f[7] = 0;
3006 }
3007
3008 void R_Bloom_CopyScreenTexture(float colorscale)
3009 {
3010         r_refdef.stats.bloom++;
3011
3012         R_ResetViewRendering2D();
3013         R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3014         R_Mesh_ColorPointer(NULL, 0, 0);
3015         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.screentexcoord2f, 0, 0);
3016         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_screen));
3017
3018         // copy view into the screen texture
3019         GL_ActiveTexture(0);
3020         CHECKGLERROR
3021         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
3022         r_refdef.stats.bloom_copypixels += r_refdef.view.width * r_refdef.view.height;
3023
3024         // now scale it down to the bloom texture size
3025         CHECKGLERROR
3026         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3027         GL_BlendFunc(GL_ONE, GL_ZERO);
3028         GL_Color(colorscale, colorscale, colorscale, 1);
3029         // TODO: optimize with multitexture or GLSL
3030         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3031         r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3032
3033         // we now have a bloom image in the framebuffer
3034         // copy it into the bloom image texture for later processing
3035         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3036         GL_ActiveTexture(0);
3037         CHECKGLERROR
3038         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3039         r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3040 }
3041
3042 void R_Bloom_CopyHDRTexture(void)
3043 {
3044         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3045         GL_ActiveTexture(0);
3046         CHECKGLERROR
3047         qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
3048         r_refdef.stats.bloom_copypixels += r_refdef.view.width * r_refdef.view.height;
3049 }
3050
3051 void R_Bloom_MakeTexture(void)
3052 {
3053         int x, range, dir;
3054         float xoffset, yoffset, r, brighten;
3055
3056         r_refdef.stats.bloom++;
3057
3058         R_ResetViewRendering2D();
3059         R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3060         R_Mesh_ColorPointer(NULL, 0, 0);
3061
3062         // we have a bloom image in the framebuffer
3063         CHECKGLERROR
3064         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3065
3066         for (x = 1;x < min(r_bloom_colorexponent.value, 32);)
3067         {
3068                 x *= 2;
3069                 r = bound(0, r_bloom_colorexponent.value / x, 1);
3070                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
3071                 GL_Color(r, r, r, 1);
3072                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3073                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3074                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3075                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3076
3077                 // copy the vertically blurred bloom view to a texture
3078                 GL_ActiveTexture(0);
3079                 CHECKGLERROR
3080                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3081                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3082         }
3083
3084         range = r_bloom_blur.integer * r_bloomstate.bloomwidth / 320;
3085         brighten = r_bloom_brighten.value;
3086         if (r_hdr.integer)
3087                 brighten *= r_hdr_range.value;
3088         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3089         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.offsettexcoord2f, 0, 0);
3090
3091         for (dir = 0;dir < 2;dir++)
3092         {
3093                 // blend on at multiple vertical offsets to achieve a vertical blur
3094                 // TODO: do offset blends using GLSL
3095                 GL_BlendFunc(GL_ONE, GL_ZERO);
3096                 for (x = -range;x <= range;x++)
3097                 {
3098                         if (!dir){xoffset = 0;yoffset = x;}
3099                         else {xoffset = x;yoffset = 0;}
3100                         xoffset /= (float)r_bloomstate.bloomtexturewidth;
3101                         yoffset /= (float)r_bloomstate.bloomtextureheight;
3102                         // compute a texcoord array with the specified x and y offset
3103                         r_bloomstate.offsettexcoord2f[0] = xoffset+0;
3104                         r_bloomstate.offsettexcoord2f[1] = yoffset+(float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3105                         r_bloomstate.offsettexcoord2f[2] = xoffset+(float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
3106                         r_bloomstate.offsettexcoord2f[3] = yoffset+(float)r_bloomstate.bloomheight / (float)r_bloomstate.bloomtextureheight;
3107                         r_bloomstate.offsettexcoord2f[4] = xoffset+(float)r_bloomstate.bloomwidth / (float)r_bloomstate.bloomtexturewidth;
3108                         r_bloomstate.offsettexcoord2f[5] = yoffset+0;
3109                         r_bloomstate.offsettexcoord2f[6] = xoffset+0;
3110                         r_bloomstate.offsettexcoord2f[7] = yoffset+0;
3111                         // this r value looks like a 'dot' particle, fading sharply to
3112                         // black at the edges
3113                         // (probably not realistic but looks good enough)
3114                         //r = ((range*range+1)/((float)(x*x+1)))/(range*2+1);
3115                         //r = (dir ? 1.0f : brighten)/(range*2+1);
3116                         r = (dir ? 1.0f : brighten)/(range*2+1)*(1 - x*x/(float)(range*range));
3117                         GL_Color(r, r, r, 1);
3118                         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3119                         r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3120                         GL_BlendFunc(GL_ONE, GL_ONE);
3121                 }
3122
3123                 // copy the vertically blurred bloom view to a texture
3124                 GL_ActiveTexture(0);
3125                 CHECKGLERROR
3126                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3127                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3128         }
3129
3130         // apply subtract last
3131         // (just like it would be in a GLSL shader)
3132         if (r_bloom_colorsubtract.value > 0 && gl_support_ext_blend_subtract)
3133         {
3134                 GL_BlendFunc(GL_ONE, GL_ZERO);
3135                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3136                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3137                 GL_Color(1, 1, 1, 1);
3138                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3139                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3140
3141                 GL_BlendFunc(GL_ONE, GL_ONE);
3142                 qglBlendEquationEXT(GL_FUNC_REVERSE_SUBTRACT_EXT);
3143                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
3144                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3145                 GL_Color(r_bloom_colorsubtract.value, r_bloom_colorsubtract.value, r_bloom_colorsubtract.value, 1);
3146                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3147                 r_refdef.stats.bloom_drawpixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3148                 qglBlendEquationEXT(GL_FUNC_ADD_EXT);
3149
3150                 // copy the darkened bloom view to a texture
3151                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3152                 GL_ActiveTexture(0);
3153                 CHECKGLERROR
3154                 qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_refdef.view.x, vid.height - (r_refdef.view.y + r_bloomstate.bloomheight), r_bloomstate.bloomwidth, r_bloomstate.bloomheight);CHECKGLERROR
3155                 r_refdef.stats.bloom_copypixels += r_bloomstate.bloomwidth * r_bloomstate.bloomheight;
3156         }
3157 }
3158
3159 void R_HDR_RenderBloomTexture(void)
3160 {
3161         int oldwidth, oldheight;
3162         float oldcolorscale;
3163
3164         oldcolorscale = r_refdef.view.colorscale;
3165         oldwidth = r_refdef.view.width;
3166         oldheight = r_refdef.view.height;
3167         r_refdef.view.width = r_bloomstate.bloomwidth;
3168         r_refdef.view.height = r_bloomstate.bloomheight;
3169
3170         // TODO: support GL_EXT_framebuffer_object rather than reusing the framebuffer?  it might improve SLI performance.
3171         // TODO: add exposure compensation features
3172         // TODO: add fp16 framebuffer support
3173
3174         r_refdef.view.showdebug = false;
3175         r_refdef.view.colorscale *= r_bloom_colorscale.value / bound(1, r_hdr_range.value, 16);
3176
3177         R_ClearScreen(r_refdef.fogenabled);
3178         if (r_timereport_active)
3179                 R_TimeReport("HDRclear");
3180
3181         r_waterstate.numwaterplanes = 0;
3182         R_RenderScene(r_waterstate.enabled);
3183         r_refdef.view.showdebug = true;
3184
3185         R_ResetViewRendering2D();
3186
3187         R_Bloom_CopyHDRTexture();
3188         R_Bloom_MakeTexture();
3189
3190         // restore the view settings
3191         r_refdef.view.width = oldwidth;
3192         r_refdef.view.height = oldheight;
3193         r_refdef.view.colorscale = oldcolorscale;
3194
3195         R_ResetViewRendering3D();
3196
3197         R_ClearScreen(r_refdef.fogenabled);
3198         if (r_timereport_active)
3199                 R_TimeReport("viewclear");
3200 }
3201
3202 static void R_BlendView(void)
3203 {
3204         if (r_bloomstate.enabled && r_bloomstate.hdr)
3205         {
3206                 // render high dynamic range bloom effect
3207                 // the bloom texture was made earlier this render, so we just need to
3208                 // blend it onto the screen...
3209                 R_ResetViewRendering2D();
3210                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3211                 R_Mesh_ColorPointer(NULL, 0, 0);
3212                 GL_Color(1, 1, 1, 1);
3213                 GL_BlendFunc(GL_ONE, GL_ONE);
3214                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3215                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3216                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3217                 r_refdef.stats.bloom_drawpixels += r_refdef.view.width * r_refdef.view.height;
3218         }
3219         else if (r_bloomstate.enabled)
3220         {
3221                 // render simple bloom effect
3222                 // copy the screen and shrink it and darken it for the bloom process
3223                 R_Bloom_CopyScreenTexture(r_bloom_colorscale.value);
3224                 // make the bloom texture
3225                 R_Bloom_MakeTexture();
3226                 // put the original screen image back in place and blend the bloom
3227                 // texture on it
3228                 R_ResetViewRendering2D();
3229                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3230                 R_Mesh_ColorPointer(NULL, 0, 0);
3231                 GL_Color(1, 1, 1, 1);
3232                 GL_BlendFunc(GL_ONE, GL_ZERO);
3233                 // do both in one pass if possible
3234                 R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_bloom));
3235                 R_Mesh_TexCoordPointer(0, 2, r_bloomstate.bloomtexcoord2f, 0, 0);
3236                 if (r_textureunits.integer >= 2 && gl_combine.integer)
3237                 {
3238                         R_Mesh_TexCombine(1, GL_ADD, GL_ADD, 1, 1);
3239                         R_Mesh_TexBind(1, R_GetTexture(r_bloomstate.texture_screen));
3240                         R_Mesh_TexCoordPointer(1, 2, r_bloomstate.screentexcoord2f, 0, 0);
3241                 }
3242                 else
3243                 {
3244                         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3245                         r_refdef.stats.bloom_drawpixels += r_refdef.view.width * r_refdef.view.height;
3246                         // now blend on the bloom texture
3247                         GL_BlendFunc(GL_ONE, GL_ONE);
3248                         R_Mesh_TexBind(0, R_GetTexture(r_bloomstate.texture_screen));
3249                         R_Mesh_TexCoordPointer(0, 2, r_bloomstate.screentexcoord2f, 0, 0);
3250                 }
3251                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3252                 r_refdef.stats.bloom_drawpixels += r_refdef.view.width * r_refdef.view.height;
3253         }
3254         if (r_refdef.viewblend[3] >= (1.0f / 256.0f))
3255         {
3256                 // apply a color tint to the whole view
3257                 R_ResetViewRendering2D();
3258                 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
3259                 R_Mesh_ColorPointer(NULL, 0, 0);
3260                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3261                 GL_Color(r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]);
3262                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3263         }
3264 }
3265
3266 void R_RenderScene(qboolean addwaterplanes);
3267
3268 matrix4x4_t r_waterscrollmatrix;
3269
3270 void R_UpdateFogColor(void) // needs to be called before HDR subrender too, as that changes colorscale!
3271 {
3272         if (r_refdef.fog_density)
3273         {
3274                 r_refdef.fogcolor[0] = r_refdef.fog_red;
3275                 r_refdef.fogcolor[1] = r_refdef.fog_green;
3276                 r_refdef.fogcolor[2] = r_refdef.fog_blue;
3277
3278                 {
3279                         vec3_t fogvec;
3280                         VectorCopy(r_refdef.fogcolor, fogvec);
3281                         if(r_glsl.integer && (r_glsl_contrastboost.value > 1 || r_glsl_contrastboost.value < 0)) // need to support contrast boost
3282                         {
3283                                 //   color.rgb /= ((ContrastBoost - 1) * color.rgb + 1);
3284                                 fogvec[0] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[0] + 1);
3285                                 fogvec[1] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[1] + 1);
3286                                 fogvec[2] *= r_glsl_contrastboost.value / ((r_glsl_contrastboost.value - 1) * fogvec[2] + 1);
3287                         }
3288                         //   color.rgb *= ContrastBoost * SceneBrightness;
3289                         VectorScale(fogvec, r_refdef.view.colorscale, fogvec);
3290                         r_refdef.fogcolor[0] = bound(0.0f, fogvec[0], 1.0f);
3291                         r_refdef.fogcolor[1] = bound(0.0f, fogvec[1], 1.0f);
3292                         r_refdef.fogcolor[2] = bound(0.0f, fogvec[2], 1.0f);
3293                 }
3294         }
3295 }
3296
3297 void R_UpdateVariables(void)
3298 {
3299         R_Textures_Frame();
3300
3301         r_refdef.farclip = 4096;
3302         if (r_refdef.scene.worldmodel)
3303                 r_refdef.farclip += VectorDistance(r_refdef.scene.worldmodel->normalmins, r_refdef.scene.worldmodel->normalmaxs);
3304         r_refdef.nearclip = bound (0.001f, r_nearclip.value, r_refdef.farclip - 1.0f);
3305
3306         if (r_shadow_frontsidecasting.integer < 0 || r_shadow_frontsidecasting.integer > 1)
3307                 Cvar_SetValueQuick(&r_shadow_frontsidecasting, 1);
3308         r_refdef.polygonfactor = 0;
3309         r_refdef.polygonoffset = 0;
3310         r_refdef.shadowpolygonfactor = r_refdef.polygonfactor + r_shadow_polygonfactor.value * (r_shadow_frontsidecasting.integer ? 1 : -1);
3311         r_refdef.shadowpolygonoffset = r_refdef.polygonoffset + r_shadow_polygonoffset.value * (r_shadow_frontsidecasting.integer ? 1 : -1);
3312
3313         r_refdef.rtworld = r_shadow_realtime_world.integer;
3314         r_refdef.rtworldshadows = r_shadow_realtime_world_shadows.integer && gl_stencil;
3315         r_refdef.rtdlight = (r_shadow_realtime_world.integer || r_shadow_realtime_dlight.integer) && !gl_flashblend.integer && r_dynamic.integer;
3316         r_refdef.rtdlightshadows = r_refdef.rtdlight && r_shadow_realtime_dlight_shadows.integer && gl_stencil;
3317         r_refdef.lightmapintensity = r_refdef.rtworld ? r_shadow_realtime_world_lightmaps.value : 1;
3318         if (r_showsurfaces.integer)
3319         {
3320                 r_refdef.rtworld = false;
3321                 r_refdef.rtworldshadows = false;
3322                 r_refdef.rtdlight = false;
3323                 r_refdef.rtdlightshadows = false;
3324                 r_refdef.lightmapintensity = 0;
3325         }
3326
3327         if (gamemode == GAME_NEHAHRA)
3328         {
3329                 if (gl_fogenable.integer)
3330                 {
3331                         r_refdef.oldgl_fogenable = true;
3332                         r_refdef.fog_density = gl_fogdensity.value;
3333                         r_refdef.fog_red = gl_fogred.value;
3334                         r_refdef.fog_green = gl_foggreen.value;
3335                         r_refdef.fog_blue = gl_fogblue.value;
3336                         r_refdef.fog_alpha = 1;
3337                         r_refdef.fog_start = 0;
3338                         r_refdef.fog_end = gl_skyclip.value;
3339                 }
3340                 else if (r_refdef.oldgl_fogenable)
3341                 {
3342                         r_refdef.oldgl_fogenable = false;
3343                         r_refdef.fog_density = 0;
3344                         r_refdef.fog_red = 0;
3345                         r_refdef.fog_green = 0;
3346                         r_refdef.fog_blue = 0;
3347                         r_refdef.fog_alpha = 0;
3348                         r_refdef.fog_start = 0;
3349                         r_refdef.fog_end = 0;
3350                 }
3351         }
3352
3353         r_refdef.fog_alpha = bound(0, r_refdef.fog_alpha, 1);
3354         r_refdef.fog_start = max(0, r_refdef.fog_start);
3355         r_refdef.fog_end = max(r_refdef.fog_start + 0.01, r_refdef.fog_end);
3356
3357         // R_UpdateFogColor(); // why? R_RenderScene does it anyway
3358
3359         if (r_refdef.fog_density)
3360         {
3361                 r_refdef.fogenabled = true;
3362                 // this is the point where the fog reaches 0.9986 alpha, which we
3363                 // consider a good enough cutoff point for the texture
3364                 // (0.9986 * 256 == 255.6)
3365                 if (r_fog_exp2.integer)
3366                         r_refdef.fogrange = 32 / (r_refdef.fog_density * r_refdef.fog_density) + r_refdef.fog_start;
3367                 else
3368                         r_refdef.fogrange = 2048 / r_refdef.fog_density + r_refdef.fog_start;
3369                 r_refdef.fogrange = bound(r_refdef.fog_start, r_refdef.fogrange, r_refdef.fog_end);
3370                 r_refdef.fograngerecip = 1.0f / r_refdef.fogrange;
3371                 r_refdef.fogmasktabledistmultiplier = FOGMASKTABLEWIDTH * r_refdef.fograngerecip;
3372                 // fog color was already set
3373                 // update the fog texture
3374                 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)
3375                         R_BuildFogTexture();
3376         }
3377         else
3378                 r_refdef.fogenabled = false;
3379 }
3380
3381 /*
3382 ================
3383 R_RenderView
3384 ================
3385 */
3386 void R_RenderView(void)
3387 {
3388         if (!r_refdef.scene.entities/* || !r_refdef.scene.worldmodel*/)
3389                 return; //Host_Error ("R_RenderView: NULL worldmodel");
3390
3391         r_refdef.view.colorscale = r_hdr_scenebrightness.value;
3392
3393         R_Shadow_UpdateWorldLightSelection();
3394
3395         R_Bloom_StartFrame();
3396         R_Water_StartFrame();
3397
3398         CHECKGLERROR
3399         if (r_timereport_active)
3400                 R_TimeReport("viewsetup");
3401
3402         R_ResetViewRendering3D();
3403
3404         if (r_refdef.view.clear || r_refdef.fogenabled)
3405         {
3406                 R_ClearScreen(r_refdef.fogenabled);
3407                 if (r_timereport_active)
3408                         R_TimeReport("viewclear");
3409         }
3410         r_refdef.view.clear = true;
3411
3412         r_refdef.view.showdebug = true;
3413
3414         // this produces a bloom texture to be used in R_BlendView() later
3415         if (r_hdr.integer)
3416                 R_HDR_RenderBloomTexture();
3417
3418         r_waterstate.numwaterplanes = 0;
3419         R_RenderScene(r_waterstate.enabled);
3420
3421         R_BlendView();
3422         if (r_timereport_active)
3423                 R_TimeReport("blendview");
3424
3425         GL_Scissor(0, 0, vid.width, vid.height);
3426         GL_ScissorTest(false);
3427         CHECKGLERROR
3428 }
3429
3430 extern void R_DrawLightningBeams (void);
3431 extern void VM_CL_AddPolygonsToMeshQueue (void);
3432 extern void R_DrawPortals (void);
3433 extern cvar_t cl_locs_show;
3434 static void R_DrawLocs(void);
3435 static void R_DrawEntityBBoxes(void);
3436 void R_RenderScene(qboolean addwaterplanes)
3437 {
3438         Matrix4x4_Invert_Simple(&r_refdef.view.inverse_matrix, &r_refdef.view.matrix);
3439         R_UpdateFogColor();
3440
3441         if (addwaterplanes)
3442         {
3443                 R_ResetViewRendering3D();
3444
3445                 R_View_Update();
3446                 if (r_timereport_active)
3447                         R_TimeReport("watervis");
3448
3449                 if (cl.csqc_vidvars.drawworld && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawAddWaterPlanes)
3450                 {
3451                         r_refdef.scene.worldmodel->DrawAddWaterPlanes(r_refdef.scene.worldentity);
3452                         if (r_timereport_active)
3453                                 R_TimeReport("waterworld");
3454                 }
3455
3456                 // don't let sound skip if going slow
3457                 if (r_refdef.scene.extraupdate)
3458                         S_ExtraUpdate ();
3459
3460                 R_DrawModelsAddWaterPlanes();
3461                 if (r_timereport_active)
3462                         R_TimeReport("watermodels");
3463
3464                 R_Water_ProcessPlanes();
3465                 if (r_timereport_active)
3466                         R_TimeReport("waterscenes");
3467         }
3468
3469         R_ResetViewRendering3D();
3470
3471         // don't let sound skip if going slow
3472         if (r_refdef.scene.extraupdate)
3473                 S_ExtraUpdate ();
3474
3475         R_MeshQueue_BeginScene();
3476
3477         R_SkyStartFrame();
3478
3479         R_View_Update();
3480         if (r_timereport_active)
3481                 R_TimeReport("visibility");
3482
3483         Matrix4x4_CreateTranslate(&r_waterscrollmatrix, sin(r_refdef.scene.time) * 0.025 * r_waterscroll.value, sin(r_refdef.scene.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
3484
3485         if (cl.csqc_vidvars.drawworld)
3486         {
3487                 // don't let sound skip if going slow
3488                 if (r_refdef.scene.extraupdate)
3489                         S_ExtraUpdate ();
3490
3491                 if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawSky)
3492                 {
3493                         r_refdef.scene.worldmodel->DrawSky(r_refdef.scene.worldentity);
3494                         if (r_timereport_active)
3495                                 R_TimeReport("worldsky");
3496                 }
3497
3498                 if (R_DrawBrushModelsSky() && r_timereport_active)
3499                         R_TimeReport("bmodelsky");
3500         }
3501
3502         if (r_depthfirst.integer >= 1 && cl.csqc_vidvars.drawworld && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawDepth)
3503         {
3504                 r_refdef.scene.worldmodel->DrawDepth(r_refdef.scene.worldentity);
3505                 if (r_timereport_active)
3506                         R_TimeReport("worlddepth");
3507         }
3508         if (r_depthfirst.integer >= 2)
3509         {
3510                 R_DrawModelsDepth();
3511                 if (r_timereport_active)
3512                         R_TimeReport("modeldepth");
3513         }
3514
3515         if (cl.csqc_vidvars.drawworld && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->Draw)
3516         {
3517                 r_refdef.scene.worldmodel->Draw(r_refdef.scene.worldentity);
3518                 if (r_timereport_active)
3519                         R_TimeReport("world");
3520         }
3521
3522         // don't let sound skip if going slow
3523         if (r_refdef.scene.extraupdate)
3524                 S_ExtraUpdate ();
3525
3526         R_DrawModels();
3527         if (r_timereport_active)
3528                 R_TimeReport("models");
3529
3530         // don't let sound skip if going slow
3531         if (r_refdef.scene.extraupdate)
3532                 S_ExtraUpdate ();
3533
3534         if (r_shadows.integer > 0 && r_refdef.lightmapintensity > 0)
3535         {
3536                 R_DrawModelShadows();
3537
3538                 R_ResetViewRendering3D();
3539
3540                 // don't let sound skip if going slow
3541                 if (r_refdef.scene.extraupdate)
3542                         S_ExtraUpdate ();
3543         }
3544
3545         R_ShadowVolumeLighting(false);
3546         if (r_timereport_active)
3547                 R_TimeReport("rtlights");
3548
3549         // don't let sound skip if going slow
3550         if (r_refdef.scene.extraupdate)
3551                 S_ExtraUpdate ();
3552
3553         if (cl.csqc_vidvars.drawworld)
3554         {
3555                 R_DrawLightningBeams();
3556                 if (r_timereport_active)
3557                         R_TimeReport("lightning");
3558
3559                 R_DrawDecals();
3560                 if (r_timereport_active)
3561                         R_TimeReport("decals");
3562
3563                 R_DrawParticles();
3564                 if (r_timereport_active)
3565                         R_TimeReport("particles");
3566
3567                 R_DrawExplosions();
3568                 if (r_timereport_active)
3569                         R_TimeReport("explosions");
3570         }
3571
3572         if (gl_support_fragment_shader)
3573         {
3574                 qglUseProgramObjectARB(0);CHECKGLERROR
3575         }
3576         VM_CL_AddPolygonsToMeshQueue();
3577
3578         if (r_refdef.view.showdebug)
3579         {
3580                 if (cl_locs_show.integer)
3581                 {
3582                         R_DrawLocs();
3583                         if (r_timereport_active)
3584                                 R_TimeReport("showlocs");
3585                 }
3586
3587                 if (r_drawportals.integer)
3588                 {
3589                         R_DrawPortals();
3590                         if (r_timereport_active)
3591                                 R_TimeReport("portals");
3592                 }
3593
3594                 if (r_showbboxes.value > 0)
3595                 {
3596                         R_DrawEntityBBoxes();
3597                         if (r_timereport_active)
3598                                 R_TimeReport("bboxes");
3599                 }
3600         }
3601
3602         if (gl_support_fragment_shader)
3603         {
3604                 qglUseProgramObjectARB(0);CHECKGLERROR
3605         }
3606         R_MeshQueue_RenderTransparent();
3607         if (r_timereport_active)
3608                 R_TimeReport("drawtrans");
3609
3610         if (gl_support_fragment_shader)
3611         {
3612                 qglUseProgramObjectARB(0);CHECKGLERROR
3613         }
3614
3615         if (r_refdef.view.showdebug && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawDebug && (r_showtris.value > 0 || r_shownormals.value > 0 || r_showcollisionbrushes.value > 0))
3616         {
3617                 r_refdef.scene.worldmodel->DrawDebug(r_refdef.scene.worldentity);
3618                 if (r_timereport_active)
3619                         R_TimeReport("worlddebug");
3620                 R_DrawModelsDebug();
3621                 if (r_timereport_active)
3622                         R_TimeReport("modeldebug");
3623         }
3624
3625         if (gl_support_fragment_shader)
3626         {
3627                 qglUseProgramObjectARB(0);CHECKGLERROR
3628         }
3629
3630         if (cl.csqc_vidvars.drawworld)
3631         {
3632                 R_DrawCoronas();
3633                 if (r_timereport_active)
3634                         R_TimeReport("coronas");
3635         }
3636
3637         // don't let sound skip if going slow
3638         if (r_refdef.scene.extraupdate)
3639                 S_ExtraUpdate ();
3640
3641         R_ResetViewRendering2D();
3642 }
3643
3644 static const int bboxelements[36] =
3645 {
3646         5, 1, 3, 5, 3, 7,
3647         6, 2, 0, 6, 0, 4,
3648         7, 3, 2, 7, 2, 6,
3649         4, 0, 1, 4, 1, 5,
3650         4, 5, 7, 4, 7, 6,
3651         1, 0, 2, 1, 2, 3,
3652 };
3653
3654 void R_DrawBBoxMesh(vec3_t mins, vec3_t maxs, float cr, float cg, float cb, float ca)
3655 {
3656         int i;
3657         float *v, *c, f1, f2, vertex3f[8*3], color4f[8*4];
3658         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3659         GL_DepthMask(false);
3660         GL_DepthRange(0, 1);
3661         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
3662         R_Mesh_Matrix(&identitymatrix);
3663         R_Mesh_ResetTextureState();
3664
3665         vertex3f[ 0] = mins[0];vertex3f[ 1] = mins[1];vertex3f[ 2] = mins[2]; //
3666         vertex3f[ 3] = maxs[0];vertex3f[ 4] = mins[1];vertex3f[ 5] = mins[2];
3667         vertex3f[ 6] = mins[0];vertex3f[ 7] = maxs[1];vertex3f[ 8] = mins[2];
3668         vertex3f[ 9] = maxs[0];vertex3f[10] = maxs[1];vertex3f[11] = mins[2];
3669         vertex3f[12] = mins[0];vertex3f[13] = mins[1];vertex3f[14] = maxs[2];
3670         vertex3f[15] = maxs[0];vertex3f[16] = mins[1];vertex3f[17] = maxs[2];
3671         vertex3f[18] = mins[0];vertex3f[19] = maxs[1];vertex3f[20] = maxs[2];
3672         vertex3f[21] = maxs[0];vertex3f[22] = maxs[1];vertex3f[23] = maxs[2];
3673         R_FillColors(color4f, 8, cr, cg, cb, ca);
3674         if (r_refdef.fogenabled)
3675         {
3676                 for (i = 0, v = vertex3f, c = color4f;i < 8;i++, v += 3, c += 4)
3677                 {
3678                         f1 = FogPoint_World(v);
3679                         f2 = 1 - f1;
3680                         c[0] = c[0] * f1 + r_refdef.fogcolor[0] * f2;
3681                         c[1] = c[1] * f1 + r_refdef.fogcolor[1] * f2;
3682                         c[2] = c[2] * f1 + r_refdef.fogcolor[2] * f2;
3683                 }
3684         }
3685         R_Mesh_VertexPointer(vertex3f, 0, 0);
3686         R_Mesh_ColorPointer(color4f, 0, 0);
3687         R_Mesh_ResetTextureState();
3688         R_Mesh_Draw(0, 8, 12, bboxelements, 0, 0);
3689 }
3690
3691 static void R_DrawEntityBBoxes_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
3692 {
3693         int i;
3694         float color[4];
3695         prvm_edict_t *edict;
3696         // this function draws bounding boxes of server entities
3697         if (!sv.active)
3698                 return;
3699         SV_VM_Begin();
3700         for (i = 0;i < numsurfaces;i++)
3701         {
3702                 edict = PRVM_EDICT_NUM(surfacelist[i]);
3703                 switch ((int)edict->fields.server->solid)
3704                 {
3705                         case SOLID_NOT:      Vector4Set(color, 1, 1, 1, 0.05);break;
3706                         case SOLID_TRIGGER:  Vector4Set(color, 1, 0, 1, 0.10);break;
3707                         case SOLID_BBOX:     Vector4Set(color, 0, 1, 0, 0.10);break;
3708                         case SOLID_SLIDEBOX: Vector4Set(color, 1, 0, 0, 0.10);break;
3709                         case SOLID_BSP:      Vector4Set(color, 0, 0, 1, 0.05);break;
3710                         default:             Vector4Set(color, 0, 0, 0, 0.50);break;
3711                 }
3712                 color[3] *= r_showbboxes.value;
3713                 color[3] = bound(0, color[3], 1);
3714                 GL_DepthTest(!r_showdisabledepthtest.integer);
3715                 GL_CullFace(r_refdef.view.cullface_front);
3716                 R_DrawBBoxMesh(edict->priv.server->areamins, edict->priv.server->areamaxs, color[0], color[1], color[2], color[3]);
3717         }
3718         SV_VM_End();
3719 }
3720
3721 static void R_DrawEntityBBoxes(void)
3722 {
3723         int i;
3724         prvm_edict_t *edict;
3725         vec3_t center;
3726         // this function draws bounding boxes of server entities
3727         if (!sv.active)
3728                 return;
3729         SV_VM_Begin();
3730         for (i = 0;i < prog->num_edicts;i++)
3731         {
3732                 edict = PRVM_EDICT_NUM(i);
3733                 if (edict->priv.server->free)
3734                         continue;
3735                 VectorLerp(edict->priv.server->areamins, 0.5f, edict->priv.server->areamaxs, center);
3736                 R_MeshQueue_AddTransparent(center, R_DrawEntityBBoxes_Callback, (entity_render_t *)NULL, i, (rtlight_t *)NULL);
3737         }
3738         SV_VM_End();
3739 }
3740
3741 int nomodelelements[24] =
3742 {
3743         5, 2, 0,
3744         5, 1, 2,
3745         5, 0, 3,
3746         5, 3, 1,
3747         0, 2, 4,
3748         2, 1, 4,
3749         3, 0, 4,
3750         1, 3, 4
3751 };
3752
3753 float nomodelvertex3f[6*3] =
3754 {
3755         -16,   0,   0,
3756          16,   0,   0,
3757           0, -16,   0,
3758           0,  16,   0,
3759           0,   0, -16,
3760           0,   0,  16
3761 };
3762
3763 float nomodelcolor4f[6*4] =
3764 {
3765         0.0f, 0.0f, 0.5f, 1.0f,
3766         0.0f, 0.0f, 0.5f, 1.0f,
3767         0.0f, 0.5f, 0.0f, 1.0f,
3768         0.0f, 0.5f, 0.0f, 1.0f,
3769         0.5f, 0.0f, 0.0f, 1.0f,
3770         0.5f, 0.0f, 0.0f, 1.0f
3771 };
3772
3773 void R_DrawNoModel_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
3774 {
3775         int i;
3776         float f1, f2, *c;
3777         float color4f[6*4];
3778         // this is only called once per entity so numsurfaces is always 1, and
3779         // surfacelist is always {0}, so this code does not handle batches
3780         R_Mesh_Matrix(&ent->matrix);
3781
3782         if (ent->flags & EF_ADDITIVE)
3783         {
3784                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
3785                 GL_DepthMask(false);
3786         }
3787         else if (ent->alpha < 1)
3788         {
3789                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3790                 GL_DepthMask(false);
3791         }
3792         else
3793         {
3794                 GL_BlendFunc(GL_ONE, GL_ZERO);
3795                 GL_DepthMask(true);
3796         }
3797         GL_DepthRange(0, (ent->flags & RENDER_VIEWMODEL) ? 0.0625 : 1);
3798         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
3799         GL_DepthTest(!(ent->effects & EF_NODEPTHTEST));
3800         GL_CullFace((ent->effects & EF_DOUBLESIDED) ? GL_NONE : r_refdef.view.cullface_back);
3801         R_Mesh_VertexPointer(nomodelvertex3f, 0, 0);
3802         if (r_refdef.fogenabled)
3803         {
3804                 vec3_t org;
3805                 memcpy(color4f, nomodelcolor4f, sizeof(float[6*4]));
3806                 R_Mesh_ColorPointer(color4f, 0, 0);
3807                 Matrix4x4_OriginFromMatrix(&ent->matrix, org);
3808                 f1 = FogPoint_World(org);
3809                 f2 = 1 - f1;
3810                 for (i = 0, c = color4f;i < 6;i++, c += 4)
3811                 {
3812                         c[0] = (c[0] * f1 + r_refdef.fogcolor[0] * f2);
3813                         c[1] = (c[1] * f1 + r_refdef.fogcolor[1] * f2);
3814                         c[2] = (c[2] * f1 + r_refdef.fogcolor[2] * f2);
3815                         c[3] *= ent->alpha;
3816                 }
3817         }
3818         else if (ent->alpha != 1)
3819         {
3820                 memcpy(color4f, nomodelcolor4f, sizeof(float[6*4]));
3821                 R_Mesh_ColorPointer(color4f, 0, 0);
3822                 for (i = 0, c = color4f;i < 6;i++, c += 4)
3823                         c[3] *= ent->alpha;
3824         }
3825         else
3826                 R_Mesh_ColorPointer(nomodelcolor4f, 0, 0);
3827         R_Mesh_ResetTextureState();
3828         R_Mesh_Draw(0, 6, 8, nomodelelements, 0, 0);
3829 }
3830
3831 void R_DrawNoModel(entity_render_t *ent)
3832 {
3833         vec3_t org;
3834         Matrix4x4_OriginFromMatrix(&ent->matrix, org);
3835         //if ((ent->effects & EF_ADDITIVE) || (ent->alpha < 1))
3836                 R_MeshQueue_AddTransparent(ent->effects & EF_NODEPTHTEST ? r_refdef.view.origin : org, R_DrawNoModel_TransparentCallback, ent, 0, rsurface.rtlight);
3837         //else
3838         //      R_DrawNoModelCallback(ent, 0);
3839 }
3840
3841 void R_CalcBeam_Vertex3f (float *vert, const vec3_t org1, const vec3_t org2, float width)
3842 {
3843         vec3_t right1, right2, diff, normal;
3844
3845         VectorSubtract (org2, org1, normal);
3846
3847         // calculate 'right' vector for start
3848         VectorSubtract (r_refdef.view.origin, org1, diff);
3849         CrossProduct (normal, diff, right1);
3850         VectorNormalize (right1);
3851
3852         // calculate 'right' vector for end
3853         VectorSubtract (r_refdef.view.origin, org2, diff);
3854         CrossProduct (normal, diff, right2);
3855         VectorNormalize (right2);
3856
3857         vert[ 0] = org1[0] + width * right1[0];
3858         vert[ 1] = org1[1] + width * right1[1];
3859         vert[ 2] = org1[2] + width * right1[2];
3860         vert[ 3] = org1[0] - width * right1[0];
3861         vert[ 4] = org1[1] - width * right1[1];
3862         vert[ 5] = org1[2] - width * right1[2];
3863         vert[ 6] = org2[0] - width * right2[0];
3864         vert[ 7] = org2[1] - width * right2[1];
3865         vert[ 8] = org2[2] - width * right2[2];
3866         vert[ 9] = org2[0] + width * right2[0];
3867         vert[10] = org2[1] + width * right2[1];
3868         vert[11] = org2[2] + width * right2[2];
3869 }
3870
3871 float spritetexcoord2f[4*2] = {0, 1, 0, 0, 1, 0, 1, 1};
3872
3873 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)
3874 {
3875         float fog = 1.0f;
3876         float vertex3f[12];
3877
3878         if (r_refdef.fogenabled && !depthdisable) // TODO maybe make the unfog effect a separate flag?
3879                 fog = FogPoint_World(origin);
3880
3881         R_Mesh_Matrix(&identitymatrix);
3882         GL_BlendFunc(blendfunc1, blendfunc2);
3883
3884         if(v_flipped_state)
3885         {
3886                 scalex1 = -scalex1;
3887                 scalex2 = -scalex2;
3888                 GL_CullFace(r_refdef.view.cullface_front);
3889         }
3890         else
3891                 GL_CullFace(r_refdef.view.cullface_back);
3892
3893         GL_DepthMask(false);
3894         GL_DepthRange(0, depthshort ? 0.0625 : 1);
3895         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
3896         GL_DepthTest(!depthdisable);
3897
3898         vertex3f[ 0] = origin[0] + left[0] * scalex2 + up[0] * scaley1;
3899         vertex3f[ 1] = origin[1] + left[1] * scalex2 + up[1] * scaley1;
3900         vertex3f[ 2] = origin[2] + left[2] * scalex2 + up[2] * scaley1;
3901         vertex3f[ 3] = origin[0] + left[0] * scalex2 + up[0] * scaley2;
3902         vertex3f[ 4] = origin[1] + left[1] * scalex2 + up[1] * scaley2;
3903         vertex3f[ 5] = origin[2] + left[2] * scalex2 + up[2] * scaley2;
3904         vertex3f[ 6] = origin[0] + left[0] * scalex1 + up[0] * scaley2;
3905         vertex3f[ 7] = origin[1] + left[1] * scalex1 + up[1] * scaley2;
3906         vertex3f[ 8] = origin[2] + left[2] * scalex1 + up[2] * scaley2;
3907         vertex3f[ 9] = origin[0] + left[0] * scalex1 + up[0] * scaley1;
3908         vertex3f[10] = origin[1] + left[1] * scalex1 + up[1] * scaley1;
3909         vertex3f[11] = origin[2] + left[2] * scalex1 + up[2] * scaley1;
3910
3911         R_Mesh_VertexPointer(vertex3f, 0, 0);
3912         R_Mesh_ColorPointer(NULL, 0, 0);
3913         R_Mesh_ResetTextureState();
3914         R_Mesh_TexBind(0, R_GetTexture(texture));
3915         R_Mesh_TexCoordPointer(0, 2, spritetexcoord2f, 0, 0);
3916         // FIXME: fixed function path can't properly handle r_refdef.view.colorscale > 1
3917         GL_Color(cr * fog * r_refdef.view.colorscale, cg * fog * r_refdef.view.colorscale, cb * fog * r_refdef.view.colorscale, ca);
3918         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3919
3920         if (blendfunc2 == GL_ONE_MINUS_SRC_ALPHA)
3921         {
3922                 R_Mesh_TexBind(0, R_GetTexture(fogtexture));
3923                 GL_BlendFunc(blendfunc1, GL_ONE);
3924                 fog = 1 - fog;
3925                 GL_Color(r_refdef.fogcolor[0] * fog, r_refdef.fogcolor[1] * fog, r_refdef.fogcolor[2] * fog, ca);
3926                 R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
3927         }
3928 }
3929
3930 int R_Mesh_AddVertex(rmesh_t *mesh, float x, float y, float z)
3931 {
3932         int i;
3933         float *vertex3f;
3934         float v[3];
3935         VectorSet(v, x, y, z);
3936         for (i = 0, vertex3f = mesh->vertex3f;i < mesh->numvertices;i++, vertex3f += 3)
3937                 if (VectorDistance2(v, vertex3f) < mesh->epsilon2)
3938                         break;
3939         if (i == mesh->numvertices)
3940         {
3941                 if (mesh->numvertices < mesh->maxvertices)
3942                 {
3943                         VectorCopy(v, vertex3f);
3944                         mesh->numvertices++;
3945                 }
3946                 return mesh->numvertices;
3947         }
3948         else
3949                 return i;
3950 }
3951
3952 void R_Mesh_AddPolygon3f(rmesh_t *mesh, int numvertices, float *vertex3f)
3953 {
3954         int i;
3955         int *e, element[3];
3956         element[0] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);vertex3f += 3;
3957         element[1] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);vertex3f += 3;
3958         e = mesh->element3i + mesh->numtriangles * 3;
3959         for (i = 0;i < numvertices - 2;i++, vertex3f += 3)
3960         {
3961                 element[2] = R_Mesh_AddVertex(mesh, vertex3f[0], vertex3f[1], vertex3f[2]);
3962                 if (mesh->numtriangles < mesh->maxtriangles)
3963                 {
3964                         *e++ = element[0];
3965                         *e++ = element[1];
3966                         *e++ = element[2];
3967                         mesh->numtriangles++;
3968                 }
3969                 element[1] = element[2];
3970         }
3971 }
3972
3973 void R_Mesh_AddPolygon3d(rmesh_t *mesh, int numvertices, double *vertex3d)
3974 {
3975         int i;
3976         int *e, element[3];
3977         element[0] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);vertex3d += 3;
3978         element[1] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);vertex3d += 3;
3979         e = mesh->element3i + mesh->numtriangles * 3;
3980         for (i = 0;i < numvertices - 2;i++, vertex3d += 3)
3981         {
3982                 element[2] = R_Mesh_AddVertex(mesh, vertex3d[0], vertex3d[1], vertex3d[2]);
3983                 if (mesh->numtriangles < mesh->maxtriangles)
3984                 {
3985                         *e++ = element[0];
3986                         *e++ = element[1];
3987                         *e++ = element[2];
3988                         mesh->numtriangles++;
3989                 }
3990                 element[1] = element[2];
3991         }
3992 }
3993
3994 #define R_MESH_PLANE_DIST_EPSILON (1.0 / 32.0)
3995 void R_Mesh_AddBrushMeshFromPlanes(rmesh_t *mesh, int numplanes, mplane_t *planes)
3996 {
3997         int planenum, planenum2;
3998         int w;
3999         int tempnumpoints;
4000         mplane_t *plane, *plane2;
4001         double maxdist;
4002         double temppoints[2][256*3];
4003         // figure out how large a bounding box we need to properly compute this brush
4004         maxdist = 0;
4005         for (w = 0;w < numplanes;w++)
4006                 maxdist = max(maxdist, planes[w].dist);
4007         // now make it large enough to enclose the entire brush, and round it off to a reasonable multiple of 1024
4008         maxdist = floor(maxdist * (4.0 / 1024.0) + 1) * 1024.0;
4009         for (planenum = 0, plane = planes;planenum < numplanes;planenum++, plane++)
4010         {
4011                 w = 0;
4012                 tempnumpoints = 4;
4013                 PolygonD_QuadForPlane(temppoints[w], plane->normal[0], plane->normal[1], plane->normal[2], plane->dist, maxdist);
4014                 for (planenum2 = 0, plane2 = planes;planenum2 < numplanes && tempnumpoints >= 3;planenum2++, plane2++)
4015                 {
4016                         if (planenum2 == planenum)
4017                                 continue;
4018                         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);
4019                         w = !w;
4020                 }
4021                 if (tempnumpoints < 3)
4022                         continue;
4023                 // generate elements forming a triangle fan for this polygon
4024                 R_Mesh_AddPolygon3d(mesh, tempnumpoints, temppoints[w]);
4025         }
4026 }
4027
4028 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)
4029 {
4030         texturelayer_t *layer;
4031         layer = t->currentlayers + t->currentnumlayers++;
4032         layer->type = type;
4033         layer->depthmask = depthmask;
4034         layer->blendfunc1 = blendfunc1;
4035         layer->blendfunc2 = blendfunc2;
4036         layer->texture = texture;
4037         layer->texmatrix = *matrix;
4038         layer->color[0] = r * r_refdef.view.colorscale;
4039         layer->color[1] = g * r_refdef.view.colorscale;
4040         layer->color[2] = b * r_refdef.view.colorscale;
4041         layer->color[3] = a;
4042 }
4043
4044 static float R_EvaluateQ3WaveFunc(q3wavefunc_t func, const float *parms)
4045 {
4046         double index, f;
4047         index = parms[2] + r_refdef.scene.time * parms[3];
4048         index -= floor(index);
4049         switch (func)
4050         {
4051         default:
4052         case Q3WAVEFUNC_NONE:
4053         case Q3WAVEFUNC_NOISE:
4054         case Q3WAVEFUNC_COUNT:
4055                 f = 0;
4056                 break;
4057         case Q3WAVEFUNC_SIN: f = sin(index * M_PI * 2);break;
4058         case Q3WAVEFUNC_SQUARE: f = index < 0.5 ? 1 : -1;break;
4059         case Q3WAVEFUNC_SAWTOOTH: f = index;break;
4060         case Q3WAVEFUNC_INVERSESAWTOOTH: f = 1 - index;break;
4061         case Q3WAVEFUNC_TRIANGLE:
4062                 index *= 4;
4063                 f = index - floor(index);
4064                 if (index < 1)
4065                         f = f;
4066                 else if (index < 2)
4067                         f = 1 - f;
4068                 else if (index < 3)
4069                         f = -f;
4070                 else
4071                         f = -(1 - f);
4072                 break;
4073         }
4074         return (float)(parms[0] + parms[1] * f);
4075 }
4076
4077 void R_UpdateTextureInfo(const entity_render_t *ent, texture_t *t)
4078 {
4079         int i;
4080         model_t *model = ent->model;
4081         float f;
4082         float tcmat[12];
4083         q3shaderinfo_layer_tcmod_t *tcmod;
4084
4085         // switch to an alternate material if this is a q1bsp animated material
4086         {
4087                 texture_t *texture = t;
4088                 int s = ent->skinnum;
4089                 if ((unsigned int)s >= (unsigned int)model->numskins)
4090                         s = 0;
4091                 if (model->skinscenes)
4092                 {
4093                         if (model->skinscenes[s].framecount > 1)
4094                                 s = model->skinscenes[s].firstframe + (unsigned int) (r_refdef.scene.time * model->skinscenes[s].framerate) % model->skinscenes[s].framecount;
4095                         else
4096                                 s = model->skinscenes[s].firstframe;
4097                 }
4098                 if (s > 0)
4099                         t = t + s * model->num_surfaces;
4100                 if (t->animated)
4101                 {
4102                         // use an alternate animation if the entity's frame is not 0,
4103                         // and only if the texture has an alternate animation
4104                         if (ent->frame2 != 0 && t->anim_total[1])
4105                                 t = t->anim_frames[1][(t->anim_total[1] >= 2) ? ((int)(r_refdef.scene.time * 5.0f) % t->anim_total[1]) : 0];
4106                         else
4107                                 t = t->anim_frames[0][(t->anim_total[0] >= 2) ? ((int)(r_refdef.scene.time * 5.0f) % t->anim_total[0]) : 0];
4108                 }
4109                 texture->currentframe = t;
4110         }
4111
4112         // update currentskinframe to be a qw skin or animation frame
4113         if ((i = ent->entitynumber - 1) >= 0 && i < cl.maxclients)
4114         {
4115                 if (strcmp(r_qwskincache[i], cl.scores[i].qw_skin))
4116                 {
4117                         strlcpy(r_qwskincache[i], cl.scores[i].qw_skin, sizeof(r_qwskincache[i]));
4118                         Con_DPrintf("loading skins/%s\n", r_qwskincache[i]);
4119                         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);
4120                 }
4121                 t->currentskinframe = r_qwskincache_skinframe[i];
4122                 if (t->currentskinframe == NULL)
4123                         t->currentskinframe = t->skinframes[(int)(t->skinframerate * (cl.time - ent->frame2time)) % t->numskinframes];
4124         }
4125         else if (t->numskinframes >= 2)
4126                 t->currentskinframe = t->skinframes[(int)(t->skinframerate * (cl.time - ent->frame2time)) % t->numskinframes];
4127         if (t->backgroundnumskinframes >= 2)
4128                 t->backgroundcurrentskinframe = t->backgroundskinframes[(int)(t->backgroundskinframerate * (cl.time - ent->frame2time)) % t->backgroundnumskinframes];
4129
4130         t->currentmaterialflags = t->basematerialflags;
4131         t->currentalpha = ent->alpha;
4132         if (t->basematerialflags & MATERIALFLAG_WATERALPHA && (model->brush.supportwateralpha || r_novis.integer))
4133         {
4134                 t->currentalpha *= r_wateralpha.value;
4135                 /*
4136                  * FIXME what is this supposed to do?
4137                 // if rendering refraction/reflection, disable transparency
4138                 if (r_waterstate.enabled && (t->currentalpha < 1 || (t->currentmaterialflags & MATERIALFLAG_ALPHA)))
4139                         t->currentmaterialflags |= MATERIALFLAG_WATERSHADER;
4140                 */
4141         }
4142         if(!r_waterstate.enabled)
4143                 t->currentmaterialflags &= ~(MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION);
4144         if (!(ent->flags & RENDER_LIGHT))
4145                 t->currentmaterialflags |= MATERIALFLAG_FULLBRIGHT;
4146         else if (rsurface.modeltexcoordlightmap2f == NULL)
4147         {
4148                 // pick a model lighting mode
4149                 if (VectorLength2(ent->modellight_diffuse) >= (1.0f / 256.0f))
4150                         t->currentmaterialflags |= MATERIALFLAG_MODELLIGHT | MATERIALFLAG_MODELLIGHT_DIRECTIONAL;
4151                 else
4152                         t->currentmaterialflags |= MATERIALFLAG_MODELLIGHT;
4153         }
4154         if (ent->effects & EF_ADDITIVE)
4155                 t->currentmaterialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4156         else if (t->currentalpha < 1)
4157                 t->currentmaterialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4158         if (ent->effects & EF_DOUBLESIDED)
4159                 t->currentmaterialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
4160         if (ent->effects & EF_NODEPTHTEST)
4161                 t->currentmaterialflags |= MATERIALFLAG_SHORTDEPTHRANGE;
4162         if (ent->flags & RENDER_VIEWMODEL)
4163                 t->currentmaterialflags |= MATERIALFLAG_SHORTDEPTHRANGE;
4164         if (t->backgroundnumskinframes && !(t->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED))
4165                 t->currentmaterialflags |= MATERIALFLAG_VERTEXTEXTUREBLEND;
4166
4167         // make sure that the waterscroll matrix is used on water surfaces when
4168         // there is no tcmod
4169         if (t->currentmaterialflags & MATERIALFLAG_WATER && r_waterscroll.value != 0)
4170                 t->currenttexmatrix = r_waterscrollmatrix;
4171
4172         for (i = 0, tcmod = t->tcmods;i < Q3MAXTCMODS && tcmod->tcmod;i++, tcmod++)
4173         {
4174                 matrix4x4_t matrix;
4175                 switch(tcmod->tcmod)
4176                 {
4177                 case Q3TCMOD_COUNT:
4178                 case Q3TCMOD_NONE:
4179                         if (t->currentmaterialflags & MATERIALFLAG_WATER && r_waterscroll.value != 0)
4180                                 matrix = r_waterscrollmatrix;
4181                         else
4182                                 matrix = identitymatrix;
4183                         break;
4184                 case Q3TCMOD_ENTITYTRANSLATE:
4185                         // this is used in Q3 to allow the gamecode to control texcoord
4186                         // scrolling on the entity, which is not supported in darkplaces yet.
4187                         Matrix4x4_CreateTranslate(&matrix, 0, 0, 0);
4188                         break;
4189                 case Q3TCMOD_ROTATE:
4190                         Matrix4x4_CreateTranslate(&matrix, 0.5, 0.5, 0);
4191                         Matrix4x4_ConcatRotate(&matrix, tcmod->parms[0] * r_refdef.scene.time, 0, 0, 1);
4192                         Matrix4x4_ConcatTranslate(&matrix, -0.5, -0.5, 0);
4193                         break;
4194                 case Q3TCMOD_SCALE:
4195                         Matrix4x4_CreateScale3(&matrix, tcmod->parms[0], tcmod->parms[1], 1);
4196                         break;
4197                 case Q3TCMOD_SCROLL:
4198                         Matrix4x4_CreateTranslate(&matrix, tcmod->parms[0] * r_refdef.scene.time, tcmod->parms[1] * r_refdef.scene.time, 0);
4199                         break;
4200                 case Q3TCMOD_STRETCH:
4201                         f = 1.0f / R_EvaluateQ3WaveFunc(tcmod->wavefunc, tcmod->waveparms);
4202                         Matrix4x4_CreateFromQuakeEntity(&matrix, 0.5f * (1 - f), 0.5 * (1 - f), 0, 0, 0, 0, f);
4203                         break;
4204                 case Q3TCMOD_TRANSFORM:
4205                         VectorSet(tcmat +  0, tcmod->parms[0], tcmod->parms[1], 0);
4206                         VectorSet(tcmat +  3, tcmod->parms[2], tcmod->parms[3], 0);
4207                         VectorSet(tcmat +  6, 0                   , 0                , 1);
4208                         VectorSet(tcmat +  9, tcmod->parms[4], tcmod->parms[5], 0);
4209                         Matrix4x4_FromArray12FloatGL(&matrix, tcmat);
4210                         break;
4211                 case Q3TCMOD_TURBULENT:
4212                         // this is handled in the RSurf_PrepareVertices function
4213                         matrix = identitymatrix;
4214                         break;
4215                 }
4216                 // either replace or concatenate the transformation
4217                 if (i < 1)
4218                         t->currenttexmatrix = matrix;
4219                 else
4220                 {
4221                         matrix4x4_t temp = t->currenttexmatrix;
4222                         Matrix4x4_Concat(&t->currenttexmatrix, &matrix, &temp);
4223                 }
4224         }
4225
4226         t->colormapping = VectorLength2(ent->colormap_pantscolor) + VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f);
4227         t->basetexture = (!t->colormapping && t->currentskinframe->merged) ? t->currentskinframe->merged : t->currentskinframe->base;
4228         t->glosstexture = r_texture_black;
4229         t->backgroundbasetexture = t->backgroundnumskinframes ? ((!t->colormapping && t->backgroundcurrentskinframe->merged) ? t->backgroundcurrentskinframe->merged : t->backgroundcurrentskinframe->base) : r_texture_white;
4230         t->backgroundglosstexture = r_texture_black;
4231         t->specularpower = r_shadow_glossexponent.value;
4232         // TODO: store reference values for these in the texture?
4233         t->specularscale = 0;
4234         if (r_shadow_gloss.integer > 0)
4235         {
4236                 if (t->currentskinframe->gloss || (t->backgroundcurrentskinframe && t->backgroundcurrentskinframe->gloss))
4237                 {
4238                         if (r_shadow_glossintensity.value > 0)
4239                         {
4240                                 t->glosstexture = t->currentskinframe->gloss ? t->currentskinframe->gloss : r_texture_white;
4241                                 t->backgroundglosstexture = (t->backgroundcurrentskinframe && t->backgroundcurrentskinframe->gloss) ? t->backgroundcurrentskinframe->gloss : r_texture_white;
4242                                 t->specularscale = r_shadow_glossintensity.value;
4243                         }
4244                 }
4245                 else if (r_shadow_gloss.integer >= 2 && r_shadow_gloss2intensity.value > 0)
4246                 {
4247                         t->glosstexture = r_texture_white;
4248                         t->backgroundglosstexture = r_texture_white;
4249                         t->specularscale = r_shadow_gloss2intensity.value;
4250                 }
4251         }
4252
4253         // lightmaps mode looks bad with dlights using actual texturing, so turn
4254         // off the colormap and glossmap, but leave the normalmap on as it still
4255         // accurately represents the shading involved
4256         if (gl_lightmaps.integer && !(t->currentmaterialflags & MATERIALFLAG_BLENDED))
4257         {
4258                 t->basetexture = r_texture_white;
4259                 t->specularscale = 0;
4260         }
4261
4262         Vector4Set(t->lightmapcolor, ent->colormod[0], ent->colormod[1], ent->colormod[2], t->currentalpha);
4263         VectorClear(t->dlightcolor);
4264         t->currentnumlayers = 0;
4265         if (!(t->currentmaterialflags & MATERIALFLAG_NODRAW))
4266         {
4267                 if (!(t->currentmaterialflags & MATERIALFLAG_SKY))
4268                 {
4269                         int blendfunc1, blendfunc2, depthmask;
4270                         if (t->currentmaterialflags & MATERIALFLAG_ADD)
4271                         {
4272                                 blendfunc1 = GL_SRC_ALPHA;
4273                                 blendfunc2 = GL_ONE;
4274                         }
4275                         else if (t->currentmaterialflags & MATERIALFLAG_ALPHA)
4276                         {
4277                                 blendfunc1 = GL_SRC_ALPHA;
4278                                 blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
4279                         }
4280                         else if (t->currentmaterialflags & MATERIALFLAG_CUSTOMBLEND)
4281                         {
4282                                 blendfunc1 = t->customblendfunc[0];
4283                                 blendfunc2 = t->customblendfunc[1];
4284                         }
4285                         else
4286                         {
4287                                 blendfunc1 = GL_ONE;
4288                                 blendfunc2 = GL_ZERO;
4289                         }
4290                         depthmask = !(t->currentmaterialflags & MATERIALFLAG_BLENDED);
4291                         if (t->currentmaterialflags & (MATERIALFLAG_WATER | MATERIALFLAG_WALL))
4292                         {
4293                                 rtexture_t *currentbasetexture;
4294                                 int layerflags = 0;
4295                                 if (r_refdef.fogenabled && (t->currentmaterialflags & MATERIALFLAG_BLENDED))
4296                                         layerflags |= TEXTURELAYERFLAG_FOGDARKEN;
4297                                 currentbasetexture = (VectorLength2(ent->colormap_pantscolor) + VectorLength2(ent->colormap_shirtcolor) < (1.0f / 1048576.0f) && t->currentskinframe->merged) ? t->currentskinframe->merged : t->currentskinframe->base;
4298                                 if (t->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
4299                                 {
4300                                         // fullbright is not affected by r_refdef.lightmapintensity
4301                                         R_Texture_AddLayer(t, depthmask, blendfunc1, blendfunc2, TEXTURELAYERTYPE_TEXTURE, currentbasetexture, &t->currenttexmatrix, t->lightmapcolor[0], t->lightmapcolor[1], t->lightmapcolor[2], t->lightmapcolor[3]);
4302                                         if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4303                                                 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]);
4304                                         if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4305                                                 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]);
4306                                 }
4307                                 else
4308                                 {
4309                                         vec3_t ambientcolor;
4310                                         float colorscale;
4311                                         // set the color tint used for lights affecting this surface
4312                                         VectorSet(t->dlightcolor, ent->colormod[0] * t->lightmapcolor[3], ent->colormod[1] * t->lightmapcolor[3], ent->colormod[2] * t->lightmapcolor[3]);
4313                                         colorscale = 2;
4314                                         // q3bsp has no lightmap updates, so the lightstylevalue that
4315                                         // would normally be baked into the lightmap must be
4316                                         // applied to the color
4317                                         // FIXME: r_glsl 1 rendering doesn't support overbright lightstyles with this (the default light style is not overbright)
4318                                         if (ent->model->type == mod_brushq3)
4319                                                 colorscale *= r_refdef.scene.rtlightstylevalue[0];
4320                                         colorscale *= r_refdef.lightmapintensity;
4321                                         VectorScale(t->lightmapcolor, r_ambient.value * (1.0f / 64.0f), ambientcolor);
4322                                         VectorScale(t->lightmapcolor, colorscale, t->lightmapcolor);
4323                                         // basic lit geometry
4324                                         R_Texture_AddLayer(t, depthmask, blendfunc1, blendfunc2, TEXTURELAYERTYPE_LITTEXTURE, currentbasetexture, &t->currenttexmatrix, t->lightmapcolor[0], t->lightmapcolor[1], t->lightmapcolor[2], t->lightmapcolor[3]);
4325                                         // add pants/shirt if needed
4326                                         if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4327                                                 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]);
4328                                         if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4329                                                 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]);
4330                                         // now add ambient passes if needed
4331                                         if (VectorLength2(ambientcolor) >= (1.0f/1048576.0f))
4332                                         {
4333                                                 R_Texture_AddLayer(t, false, GL_SRC_ALPHA, GL_ONE, TEXTURELAYERTYPE_TEXTURE, currentbasetexture, &t->currenttexmatrix, ambientcolor[0], ambientcolor[1], ambientcolor[2], t->lightmapcolor[3]);
4334                                                 if (VectorLength2(ent->colormap_pantscolor) >= (1.0f / 1048576.0f) && t->currentskinframe->pants)
4335                                                         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]);
4336                                                 if (VectorLength2(ent->colormap_shirtcolor) >= (1.0f / 1048576.0f) && t->currentskinframe->shirt)
4337                                                         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]);
4338                                         }
4339                                 }
4340                                 if (t->currentskinframe->glow != NULL)
4341                                         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]);
4342                                 if (r_refdef.fogenabled && !(t->currentmaterialflags & MATERIALFLAG_ADD))
4343                                 {
4344                                         // if this is opaque use alpha blend which will darken the earlier
4345                                         // passes cheaply.
4346                                         //
4347                                         // if this is an alpha blended material, all the earlier passes
4348                                         // were darkened by fog already, so we only need to add the fog
4349                                         // color ontop through the fog mask texture
4350                                         //
4351                                         // if this is an additive blended material, all the earlier passes
4352                                         // were darkened by fog already, and we should not add fog color
4353                                         // (because the background was not darkened, there is no fog color
4354                                         // that was lost behind it).
4355                                         R_Texture_AddLayer(t, false, GL_SRC_ALPHA, (t->currentmaterialflags & MATERIALFLAG_BLENDED) ? GL_ONE : GL_ONE_MINUS_SRC_ALPHA, TEXTURELAYERTYPE_FOG, t->currentskinframe->fog, &identitymatrix, r_refdef.fogcolor[0] / r_refdef.view.colorscale, r_refdef.fogcolor[1] / r_refdef.view.colorscale, r_refdef.fogcolor[2] / r_refdef.view.colorscale, t->lightmapcolor[3]);
4356                                 }
4357                         }
4358                 }
4359         }
4360 }
4361
4362 void R_UpdateAllTextureInfo(entity_render_t *ent)
4363 {
4364         int i;
4365         if (ent->model)
4366                 for (i = 0;i < ent->model->num_texturesperskin;i++)
4367                         R_UpdateTextureInfo(ent, ent->model->data_textures + i);
4368 }
4369
4370 rsurfacestate_t rsurface;
4371
4372 void R_Mesh_ResizeArrays(int newvertices)
4373 {
4374         float *base;
4375         if (rsurface.array_size >= newvertices)
4376                 return;
4377         if (rsurface.array_modelvertex3f)
4378                 Mem_Free(rsurface.array_modelvertex3f);
4379         rsurface.array_size = (newvertices + 1023) & ~1023;
4380         base = (float *)Mem_Alloc(r_main_mempool, rsurface.array_size * sizeof(float[33]));
4381         rsurface.array_modelvertex3f     = base + rsurface.array_size * 0;
4382         rsurface.array_modelsvector3f    = base + rsurface.array_size * 3;
4383         rsurface.array_modeltvector3f    = base + rsurface.array_size * 6;
4384         rsurface.array_modelnormal3f     = base + rsurface.array_size * 9;
4385         rsurface.array_deformedvertex3f  = base + rsurface.array_size * 12;
4386         rsurface.array_deformedsvector3f = base + rsurface.array_size * 15;
4387         rsurface.array_deformedtvector3f = base + rsurface.array_size * 18;
4388         rsurface.array_deformednormal3f  = base + rsurface.array_size * 21;
4389         rsurface.array_texcoord3f        = base + rsurface.array_size * 24;
4390         rsurface.array_color4f           = base + rsurface.array_size * 27;
4391         rsurface.array_generatedtexcoordtexture2f = base + rsurface.array_size * 31;
4392 }
4393
4394 void RSurf_CleanUp(void)
4395 {
4396         CHECKGLERROR
4397         if (rsurface.mode == RSURFMODE_GLSL)
4398         {
4399                 qglUseProgramObjectARB(0);CHECKGLERROR
4400         }
4401         GL_AlphaTest(false);
4402         rsurface.mode = RSURFMODE_NONE;
4403         rsurface.uselightmaptexture = false;
4404         rsurface.texture = NULL;
4405 }
4406
4407 void RSurf_ActiveWorldEntity(void)
4408 {
4409         model_t *model = r_refdef.scene.worldmodel;
4410         RSurf_CleanUp();
4411         if (rsurface.array_size < model->surfmesh.num_vertices)
4412                 R_Mesh_ResizeArrays(model->surfmesh.num_vertices);
4413         rsurface.matrix = identitymatrix;
4414         rsurface.inversematrix = identitymatrix;
4415         R_Mesh_Matrix(&identitymatrix);
4416         VectorCopy(r_refdef.view.origin, rsurface.modelorg);
4417         VectorSet(rsurface.modellight_ambient, 0, 0, 0);
4418         VectorSet(rsurface.modellight_diffuse, 0, 0, 0);
4419         VectorSet(rsurface.modellight_lightdir, 0, 0, 1);
4420         VectorSet(rsurface.colormap_pantscolor, 0, 0, 0);
4421         VectorSet(rsurface.colormap_shirtcolor, 0, 0, 0);
4422         rsurface.frameblend[0].frame = 0;
4423         rsurface.frameblend[0].lerp = 1;
4424         rsurface.frameblend[1].frame = 0;
4425         rsurface.frameblend[1].lerp = 0;
4426         rsurface.frameblend[2].frame = 0;
4427         rsurface.frameblend[2].lerp = 0;
4428         rsurface.frameblend[3].frame = 0;
4429         rsurface.frameblend[3].lerp = 0;
4430         rsurface.basepolygonfactor = r_refdef.polygonfactor;
4431         rsurface.basepolygonoffset = r_refdef.polygonoffset;
4432         rsurface.modelvertex3f  = model->surfmesh.data_vertex3f;
4433         rsurface.modelvertex3f_bufferobject = model->surfmesh.vbo;
4434         rsurface.modelvertex3f_bufferoffset = model->surfmesh.vbooffset_vertex3f;
4435         rsurface.modelsvector3f = model->surfmesh.data_svector3f;
4436         rsurface.modelsvector3f_bufferobject = model->surfmesh.vbo;
4437         rsurface.modelsvector3f_bufferoffset = model->surfmesh.vbooffset_svector3f;
4438         rsurface.modeltvector3f = model->surfmesh.data_tvector3f;
4439         rsurface.modeltvector3f_bufferobject = model->surfmesh.vbo;
4440         rsurface.modeltvector3f_bufferoffset = model->surfmesh.vbooffset_tvector3f;
4441         rsurface.modelnormal3f  = model->surfmesh.data_normal3f;
4442         rsurface.modelnormal3f_bufferobject = model->surfmesh.vbo;
4443         rsurface.modelnormal3f_bufferoffset = model->surfmesh.vbooffset_normal3f;
4444         rsurface.modellightmapcolor4f  = model->surfmesh.data_lightmapcolor4f;
4445         rsurface.modellightmapcolor4f_bufferobject = model->surfmesh.vbo;
4446         rsurface.modellightmapcolor4f_bufferoffset = model->surfmesh.vbooffset_lightmapcolor4f;
4447         rsurface.modeltexcoordtexture2f  = model->surfmesh.data_texcoordtexture2f;
4448         rsurface.modeltexcoordtexture2f_bufferobject = model->surfmesh.vbo;
4449         rsurface.modeltexcoordtexture2f_bufferoffset = model->surfmesh.vbooffset_texcoordtexture2f;
4450         rsurface.modeltexcoordlightmap2f  = model->surfmesh.data_texcoordlightmap2f;
4451         rsurface.modeltexcoordlightmap2f_bufferobject = model->surfmesh.vbo;
4452         rsurface.modeltexcoordlightmap2f_bufferoffset = model->surfmesh.vbooffset_texcoordlightmap2f;
4453         rsurface.modelelement3i = model->surfmesh.data_element3i;
4454         rsurface.modelelement3i_bufferobject = model->surfmesh.ebo;
4455         rsurface.modellightmapoffsets = model->surfmesh.data_lightmapoffsets;
4456         rsurface.modelnum_vertices = model->surfmesh.num_vertices;
4457         rsurface.modelnum_triangles = model->surfmesh.num_triangles;
4458         rsurface.modelsurfaces = model->data_surfaces;
4459         rsurface.generatedvertex = false;
4460         rsurface.vertex3f  = rsurface.modelvertex3f;
4461         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4462         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4463         rsurface.svector3f = rsurface.modelsvector3f;
4464         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4465         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4466         rsurface.tvector3f = rsurface.modeltvector3f;
4467         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4468         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4469         rsurface.normal3f  = rsurface.modelnormal3f;
4470         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4471         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4472         rsurface.texcoordtexture2f = rsurface.modeltexcoordtexture2f;
4473 }
4474
4475 void RSurf_ActiveModelEntity(const entity_render_t *ent, qboolean wantnormals, qboolean wanttangents)
4476 {
4477         model_t *model = ent->model;
4478         RSurf_CleanUp();
4479         if (rsurface.array_size < model->surfmesh.num_vertices)
4480                 R_Mesh_ResizeArrays(model->surfmesh.num_vertices);
4481         rsurface.matrix = ent->matrix;
4482         rsurface.inversematrix = ent->inversematrix;
4483         R_Mesh_Matrix(&rsurface.matrix);
4484         Matrix4x4_Transform(&rsurface.inversematrix, r_refdef.view.origin, rsurface.modelorg);
4485         rsurface.modellight_ambient[0] = ent->modellight_ambient[0] * ent->colormod[0];
4486         rsurface.modellight_ambient[1] = ent->modellight_ambient[1] * ent->colormod[1];
4487         rsurface.modellight_ambient[2] = ent->modellight_ambient[2] * ent->colormod[2];
4488         rsurface.modellight_diffuse[0] = ent->modellight_diffuse[0] * ent->colormod[0];
4489         rsurface.modellight_diffuse[1] = ent->modellight_diffuse[1] * ent->colormod[1];
4490         rsurface.modellight_diffuse[2] = ent->modellight_diffuse[2] * ent->colormod[2];
4491         VectorCopy(ent->modellight_diffuse, rsurface.modellight_diffuse);
4492         VectorCopy(ent->modellight_lightdir, rsurface.modellight_lightdir);
4493         VectorCopy(ent->colormap_pantscolor, rsurface.colormap_pantscolor);
4494         VectorCopy(ent->colormap_shirtcolor, rsurface.colormap_shirtcolor);
4495         rsurface.frameblend[0] = ent->frameblend[0];
4496         rsurface.frameblend[1] = ent->frameblend[1];
4497         rsurface.frameblend[2] = ent->frameblend[2];
4498         rsurface.frameblend[3] = ent->frameblend[3];
4499         rsurface.basepolygonfactor = r_refdef.polygonfactor;
4500         rsurface.basepolygonoffset = r_refdef.polygonoffset;
4501         if (ent->model->brush.submodel)
4502         {
4503                 rsurface.basepolygonfactor += r_polygonoffset_submodel_factor.value;
4504                 rsurface.basepolygonoffset += r_polygonoffset_submodel_offset.value;
4505         }
4506         if (model->surfmesh.isanimated && (rsurface.frameblend[0].lerp != 1 || rsurface.frameblend[0].frame != 0))
4507         {
4508                 if (wanttangents)
4509                 {
4510                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4511                         rsurface.modelsvector3f = rsurface.array_modelsvector3f;
4512                         rsurface.modeltvector3f = rsurface.array_modeltvector3f;
4513                         rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4514                         Mod_Alias_GetMesh_Vertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, rsurface.array_modelnormal3f, rsurface.array_modelsvector3f, rsurface.array_modeltvector3f);
4515                 }
4516                 else if (wantnormals)
4517                 {
4518                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4519                         rsurface.modelsvector3f = NULL;
4520                         rsurface.modeltvector3f = NULL;
4521                         rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4522                         Mod_Alias_GetMesh_Vertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, rsurface.array_modelnormal3f, NULL, NULL);
4523                 }
4524                 else
4525                 {
4526                         rsurface.modelvertex3f = rsurface.array_modelvertex3f;
4527                         rsurface.modelsvector3f = NULL;
4528                         rsurface.modeltvector3f = NULL;
4529                         rsurface.modelnormal3f = NULL;
4530                         Mod_Alias_GetMesh_Vertices(model, rsurface.frameblend, rsurface.array_modelvertex3f, NULL, NULL, NULL);
4531                 }
4532                 rsurface.modelvertex3f_bufferobject = 0;
4533                 rsurface.modelvertex3f_bufferoffset = 0;
4534                 rsurface.modelsvector3f_bufferobject = 0;
4535                 rsurface.modelsvector3f_bufferoffset = 0;
4536                 rsurface.modeltvector3f_bufferobject = 0;
4537                 rsurface.modeltvector3f_bufferoffset = 0;
4538                 rsurface.modelnormal3f_bufferobject = 0;
4539                 rsurface.modelnormal3f_bufferoffset = 0;
4540                 rsurface.generatedvertex = true;
4541         }
4542         else
4543         {
4544                 rsurface.modelvertex3f  = model->surfmesh.data_vertex3f;
4545                 rsurface.modelvertex3f_bufferobject = model->surfmesh.vbo;
4546                 rsurface.modelvertex3f_bufferoffset = model->surfmesh.vbooffset_vertex3f;
4547                 rsurface.modelsvector3f = model->surfmesh.data_svector3f;
4548                 rsurface.modelsvector3f_bufferobject = model->surfmesh.vbo;
4549                 rsurface.modelsvector3f_bufferoffset = model->surfmesh.vbooffset_svector3f;
4550                 rsurface.modeltvector3f = model->surfmesh.data_tvector3f;
4551                 rsurface.modeltvector3f_bufferobject = model->surfmesh.vbo;
4552                 rsurface.modeltvector3f_bufferoffset = model->surfmesh.vbooffset_tvector3f;
4553                 rsurface.modelnormal3f  = model->surfmesh.data_normal3f;
4554                 rsurface.modelnormal3f_bufferobject = model->surfmesh.vbo;
4555                 rsurface.modelnormal3f_bufferoffset = model->surfmesh.vbooffset_normal3f;
4556                 rsurface.generatedvertex = false;
4557         }
4558         rsurface.modellightmapcolor4f  = model->surfmesh.data_lightmapcolor4f;
4559         rsurface.modellightmapcolor4f_bufferobject = model->surfmesh.vbo;
4560         rsurface.modellightmapcolor4f_bufferoffset = model->surfmesh.vbooffset_lightmapcolor4f;
4561         rsurface.modeltexcoordtexture2f  = model->surfmesh.data_texcoordtexture2f;
4562         rsurface.modeltexcoordtexture2f_bufferobject = model->surfmesh.vbo;
4563         rsurface.modeltexcoordtexture2f_bufferoffset = model->surfmesh.vbooffset_texcoordtexture2f;
4564         rsurface.modeltexcoordlightmap2f  = model->surfmesh.data_texcoordlightmap2f;
4565         rsurface.modeltexcoordlightmap2f_bufferobject = model->surfmesh.vbo;
4566         rsurface.modeltexcoordlightmap2f_bufferoffset = model->surfmesh.vbooffset_texcoordlightmap2f;
4567         rsurface.modelelement3i = model->surfmesh.data_element3i;
4568         rsurface.modelelement3i_bufferobject = model->surfmesh.ebo;
4569         rsurface.modellightmapoffsets = model->surfmesh.data_lightmapoffsets;
4570         rsurface.modelnum_vertices = model->surfmesh.num_vertices;
4571         rsurface.modelnum_triangles = model->surfmesh.num_triangles;
4572         rsurface.modelsurfaces = model->data_surfaces;
4573         rsurface.vertex3f  = rsurface.modelvertex3f;
4574         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4575         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4576         rsurface.svector3f = rsurface.modelsvector3f;
4577         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4578         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4579         rsurface.tvector3f = rsurface.modeltvector3f;
4580         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4581         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4582         rsurface.normal3f  = rsurface.modelnormal3f;
4583         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4584         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4585         rsurface.texcoordtexture2f = rsurface.modeltexcoordtexture2f;
4586 }
4587
4588 static const int quadedges[6][2] = {{0, 1}, {0, 2}, {0, 3}, {1, 2}, {1, 3}, {2, 3}};
4589 void RSurf_PrepareVerticesForBatch(qboolean generatenormals, qboolean generatetangents, int texturenumsurfaces, msurface_t **texturesurfacelist)
4590 {
4591         int deformindex;
4592         int texturesurfaceindex;
4593         int i, j;
4594         float amplitude;
4595         float animpos;
4596         float scale;
4597         const float *v1, *in_tc;
4598         float *out_tc;
4599         float center[3], forward[3], right[3], up[3], v[3], newforward[3], newright[3], newup[3];
4600         float waveparms[4];
4601         q3shaderinfo_deform_t *deform;
4602         // 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
4603         if (rsurface.generatedvertex)
4604         {
4605                 if (rsurface.texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
4606                         generatenormals = true;
4607                 for (i = 0;i < Q3MAXDEFORMS;i++)
4608                 {
4609                         if (rsurface.texture->deforms[i].deform == Q3DEFORM_AUTOSPRITE)
4610                         {
4611                                 generatetangents = true;
4612                                 generatenormals = true;
4613                         }
4614                         if (rsurface.texture->deforms[i].deform != Q3DEFORM_NONE)
4615                                 generatenormals = true;
4616                 }
4617                 if (generatenormals && !rsurface.modelnormal3f)
4618                 {
4619                         rsurface.normal3f = rsurface.modelnormal3f = rsurface.array_modelnormal3f;
4620                         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject = 0;
4621                         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset = 0;
4622                         Mod_BuildNormals(0, rsurface.modelnum_vertices, rsurface.modelnum_triangles, rsurface.modelvertex3f, rsurface.modelelement3i, rsurface.array_modelnormal3f, r_smoothnormals_areaweighting.integer);
4623                 }
4624                 if (generatetangents && !rsurface.modelsvector3f)
4625                 {
4626                         rsurface.svector3f = rsurface.modelsvector3f = rsurface.array_modelsvector3f;
4627                         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject = 0;
4628                         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset = 0;
4629                         rsurface.tvector3f = rsurface.modeltvector3f = rsurface.array_modeltvector3f;
4630                         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject = 0;
4631                         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset = 0;
4632                         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);
4633                 }
4634         }
4635         rsurface.vertex3f  = rsurface.modelvertex3f;
4636         rsurface.vertex3f_bufferobject = rsurface.modelvertex3f_bufferobject;
4637         rsurface.vertex3f_bufferoffset = rsurface.modelvertex3f_bufferoffset;
4638         rsurface.svector3f = rsurface.modelsvector3f;
4639         rsurface.svector3f_bufferobject = rsurface.modelsvector3f_bufferobject;
4640         rsurface.svector3f_bufferoffset = rsurface.modelsvector3f_bufferoffset;
4641         rsurface.tvector3f = rsurface.modeltvector3f;
4642         rsurface.tvector3f_bufferobject = rsurface.modeltvector3f_bufferobject;
4643         rsurface.tvector3f_bufferoffset = rsurface.modeltvector3f_bufferoffset;
4644         rsurface.normal3f  = rsurface.modelnormal3f;
4645         rsurface.normal3f_bufferobject = rsurface.modelnormal3f_bufferobject;
4646         rsurface.normal3f_bufferoffset = rsurface.modelnormal3f_bufferoffset;
4647         // if vertices are deformed (sprite flares and things in maps, possibly
4648         // water waves, bulges and other deformations), generate them into
4649         // rsurface.deform* arrays from whatever the rsurface.* arrays point to
4650         // (may be static model data or generated data for an animated model, or
4651         //  the previous deform pass)
4652         for (deformindex = 0, deform = rsurface.texture->deforms;deformindex < Q3MAXDEFORMS && deform->deform;deformindex++, deform++)
4653         {
4654                 switch (deform->deform)
4655                 {
4656                 default:
4657                 case Q3DEFORM_PROJECTIONSHADOW:
4658                 case Q3DEFORM_TEXT0:
4659                 case Q3DEFORM_TEXT1:
4660                 case Q3DEFORM_TEXT2:
4661                 case Q3DEFORM_TEXT3:
4662                 case Q3DEFORM_TEXT4:
4663                 case Q3DEFORM_TEXT5:
4664                 case Q3DEFORM_TEXT6:
4665                 case Q3DEFORM_TEXT7:
4666                 case Q3DEFORM_NONE:
4667                         break;
4668                 case Q3DEFORM_AUTOSPRITE:
4669                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.forward, newforward);
4670                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.right, newright);
4671                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.up, newup);
4672                         VectorNormalize(newforward);
4673                         VectorNormalize(newright);
4674                         VectorNormalize(newup);
4675                         // make deformed versions of only the model vertices used by the specified surfaces
4676                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4677                         {
4678                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4679                                 // a single autosprite surface can contain multiple sprites...
4680                                 for (j = 0;j < surface->num_vertices - 3;j += 4)
4681                                 {
4682                                         VectorClear(center);
4683                                         for (i = 0;i < 4;i++)
4684                                                 VectorAdd(center, (rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i) * 3, center);
4685                                         VectorScale(center, 0.25f, center);
4686                                         VectorCopy((rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, forward);
4687                                         VectorCopy((rsurface.svector3f + 3 * surface->num_firstvertex) + j*3, right);
4688                                         VectorCopy((rsurface.tvector3f + 3 * surface->num_firstvertex) + j*3, up);
4689                                         for (i = 0;i < 4;i++)
4690                                         {
4691                                                 VectorSubtract((rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i)*3, center, v);
4692                                                 VectorMAMAMAM(1, center, DotProduct(forward, v), newforward, DotProduct(right, v), newright, DotProduct(up, v), newup, rsurface.array_deformedvertex3f + (surface->num_firstvertex+i+j) * 3);
4693                                         }
4694                                 }
4695                                 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);
4696                                 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);
4697                         }
4698                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4699                         rsurface.vertex3f_bufferobject = 0;
4700                         rsurface.vertex3f_bufferoffset = 0;
4701                         rsurface.svector3f = rsurface.array_deformedsvector3f;
4702                         rsurface.svector3f_bufferobject = 0;
4703                         rsurface.svector3f_bufferoffset = 0;
4704                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
4705                         rsurface.tvector3f_bufferobject = 0;
4706                         rsurface.tvector3f_bufferoffset = 0;
4707                         rsurface.normal3f = rsurface.array_deformednormal3f;
4708                         rsurface.normal3f_bufferobject = 0;
4709                         rsurface.normal3f_bufferoffset = 0;
4710                         break;
4711                 case Q3DEFORM_AUTOSPRITE2:
4712                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.forward, newforward);
4713                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.right, newright);
4714                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.up, newup);
4715                         VectorNormalize(newforward);
4716                         VectorNormalize(newright);
4717                         VectorNormalize(newup);
4718                         // make deformed versions of only the model vertices used by the specified surfaces
4719                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4720                         {
4721                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4722                                 const float *v1, *v2;
4723                                 vec3_t start, end;
4724                                 float f, l;
4725                                 struct
4726                                 {
4727                                         float length2;
4728                                         const float *v1;
4729                                         const float *v2;
4730                                 }
4731                                 shortest[2];
4732                                 memset(shortest, 0, sizeof(shortest));
4733                                 // a single autosprite surface can contain multiple sprites...
4734                                 for (j = 0;j < surface->num_vertices - 3;j += 4)
4735                                 {
4736                                         VectorClear(center);
4737                                         for (i = 0;i < 4;i++)
4738                                                 VectorAdd(center, (rsurface.vertex3f + 3 * surface->num_firstvertex) + (j+i) * 3, center);
4739                                         VectorScale(center, 0.25f, center);
4740                                         // find the two shortest edges, then use them to define the
4741                                         // axis vectors for rotating around the central axis
4742                                         for (i = 0;i < 6;i++)
4743                                         {
4744                                                 v1 = rsurface.vertex3f + 3 * (surface->num_firstvertex + quadedges[i][0]);
4745                                                 v2 = rsurface.vertex3f + 3 * (surface->num_firstvertex + quadedges[i][1]);
4746 #if 0
4747                                                 Debug_PolygonBegin(NULL, 0, false, 0);
4748                                                 Debug_PolygonVertex(v1[0], v1[1], v1[2], 0, 0, 1, 0, 0, 1);
4749                                                 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);
4750                                                 Debug_PolygonVertex(v2[0], v2[1], v2[2], 0, 0, 1, 0, 0, 1);
4751                                                 Debug_PolygonEnd();
4752 #endif
4753                                                 l = VectorDistance2(v1, v2);
4754                                                 // this length bias tries to make sense of square polygons, assuming they are meant to be upright
4755                                                 if (v1[2] != v2[2])
4756                                                         l += (1.0f / 1024.0f);
4757                                                 if (shortest[0].length2 > l || i == 0)
4758                                                 {
4759                                                         shortest[1] = shortest[0];
4760                                                         shortest[0].length2 = l;
4761                                                         shortest[0].v1 = v1;
4762                                                         shortest[0].v2 = v2;
4763                                                 }
4764                                                 else if (shortest[1].length2 > l || i == 1)
4765                                                 {
4766                                                         shortest[1].length2 = l;
4767                                                         shortest[1].v1 = v1;
4768                                                         shortest[1].v2 = v2;
4769                                                 }
4770                                         }
4771                                         VectorLerp(shortest[0].v1, 0.5f, shortest[0].v2, start);
4772                                         VectorLerp(shortest[1].v1, 0.5f, shortest[1].v2, end);
4773 #if 0
4774                                         Debug_PolygonBegin(NULL, 0, false, 0);
4775                                         Debug_PolygonVertex(start[0], start[1], start[2], 0, 0, 1, 1, 0, 1);
4776                                         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);
4777                                         Debug_PolygonVertex(end[0], end[1], end[2], 0, 0, 0, 1, 1, 1);
4778                                         Debug_PolygonEnd();
4779 #endif
4780                                         // this calculates the right vector from the shortest edge
4781                                         // and the up vector from the edge midpoints
4782                                         VectorSubtract(shortest[0].v1, shortest[0].v2, right);
4783                                         VectorNormalize(right);
4784                                         VectorSubtract(end, start, up);
4785                                         VectorNormalize(up);
4786                                         // calculate a forward vector to use instead of the original plane normal (this is how we get a new right vector)
4787                                         //VectorSubtract(rsurface.modelorg, center, forward);
4788                                         Matrix4x4_Transform3x3(&rsurface.inversematrix, r_refdef.view.forward, forward);
4789                                         VectorNegate(forward, forward);
4790                                         VectorReflect(forward, 0, up, forward);
4791                                         VectorNormalize(forward);
4792                                         CrossProduct(up, forward, newright);
4793                                         VectorNormalize(newright);
4794 #if 0
4795                                         Debug_PolygonBegin(NULL, 0, false, 0);
4796                                         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);
4797                                         Debug_PolygonVertex(center[0] + right[0] * 8, center[1] + right[1] * 8, center[2] + right[2] * 8, 0, 0, 0, 1, 0, 1);
4798                                         Debug_PolygonVertex(center[0] + up   [0] * 8, center[1] + up   [1] * 8, center[2] + up   [2] * 8, 0, 0, 0, 0, 1, 1);
4799                                         Debug_PolygonEnd();
4800 #endif
4801 #if 0
4802                                         Debug_PolygonBegin(NULL, 0, false, 0);
4803                                         Debug_PolygonVertex(center[0] + forward [0] * 8, center[1] + forward [1] * 8, center[2] + forward [2] * 8, 0, 0, 1, 0, 0, 1);
4804                                         Debug_PolygonVertex(center[0] + newright[0] * 8, center[1] + newright[1] * 8, center[2] + newright[2] * 8, 0, 0, 0, 1, 0, 1);
4805                                         Debug_PolygonVertex(center[0] + up      [0] * 8, center[1] + up      [1] * 8, center[2] + up      [2] * 8, 0, 0, 0, 0, 1, 1);
4806                                         Debug_PolygonEnd();
4807 #endif
4808                                         // rotate the quad around the up axis vector, this is made
4809                                         // especially easy by the fact we know the quad is flat,
4810                                         // so we only have to subtract the center position and
4811                                         // measure distance along the right vector, and then
4812                                         // multiply that by the newright vector and add back the
4813                                         // center position
4814                                         // we also need to subtract the old position to undo the
4815                                         // displacement from the center, which we do with a
4816                                         // DotProduct, the subtraction/addition of center is also
4817                                         // optimized into DotProducts here
4818                                         l = DotProduct(right, center);
4819                                         for (i = 0;i < 4;i++)
4820                                         {
4821                                                 v1 = rsurface.vertex3f + 3 * (surface->num_firstvertex + j + i);
4822                                                 f = DotProduct(right, v1) - l;
4823                                                 VectorMAMAM(1, v1, -f, right, f, newright, rsurface.array_deformedvertex3f + (surface->num_firstvertex+i+j) * 3);
4824                                         }
4825                                 }
4826                                 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);
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.vertex3f = rsurface.array_deformedvertex3f;
4830                         rsurface.vertex3f_bufferobject = 0;
4831                         rsurface.vertex3f_bufferoffset = 0;
4832                         rsurface.svector3f = rsurface.array_deformedsvector3f;
4833                         rsurface.svector3f_bufferobject = 0;
4834                         rsurface.svector3f_bufferoffset = 0;
4835                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
4836                         rsurface.tvector3f_bufferobject = 0;
4837                         rsurface.tvector3f_bufferoffset = 0;
4838                         rsurface.normal3f = rsurface.array_deformednormal3f;
4839                         rsurface.normal3f_bufferobject = 0;
4840                         rsurface.normal3f_bufferoffset = 0;
4841                         break;
4842                 case Q3DEFORM_NORMAL:
4843                         // deform the normals to make reflections wavey
4844                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4845                         {
4846                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4847                                 for (j = 0;j < surface->num_vertices;j++)
4848                                 {
4849                                         float vertex[3];
4850                                         float *normal = (rsurface.array_deformednormal3f  + 3 * surface->num_firstvertex) + j*3;
4851                                         VectorScale((rsurface.vertex3f  + 3 * surface->num_firstvertex) + j*3, 0.98f, vertex);
4852                                         VectorCopy((rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, normal);
4853                                         normal[0] += deform->parms[0] * noise4f(      vertex[0], vertex[1], vertex[2], r_refdef.scene.time * deform->parms[1]);
4854                                         normal[1] += deform->parms[0] * noise4f( 98 + vertex[0], vertex[1], vertex[2], r_refdef.scene.time * deform->parms[1]);
4855                                         normal[2] += deform->parms[0] * noise4f(196 + vertex[0], vertex[1], vertex[2], r_refdef.scene.time * deform->parms[1]);
4856                                         VectorNormalize(normal);
4857                                 }
4858                                 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);
4859                         }
4860                         rsurface.svector3f = rsurface.array_deformedsvector3f;
4861                         rsurface.svector3f_bufferobject = 0;
4862                         rsurface.svector3f_bufferoffset = 0;
4863                         rsurface.tvector3f = rsurface.array_deformedtvector3f;
4864                         rsurface.tvector3f_bufferobject = 0;
4865                         rsurface.tvector3f_bufferoffset = 0;
4866                         rsurface.normal3f = rsurface.array_deformednormal3f;
4867                         rsurface.normal3f_bufferobject = 0;
4868                         rsurface.normal3f_bufferoffset = 0;
4869                         break;
4870                 case Q3DEFORM_WAVE:
4871                         // deform vertex array to make wavey water and flags and such
4872                         waveparms[0] = deform->waveparms[0];
4873                         waveparms[1] = deform->waveparms[1];
4874                         waveparms[2] = deform->waveparms[2];
4875                         waveparms[3] = deform->waveparms[3];
4876                         // this is how a divisor of vertex influence on deformation
4877                         animpos = deform->parms[0] ? 1.0f / deform->parms[0] : 100.0f;
4878                         scale = R_EvaluateQ3WaveFunc(deform->wavefunc, waveparms);
4879                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4880                         {
4881                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4882                                 for (j = 0;j < surface->num_vertices;j++)
4883                                 {
4884                                         float *vertex = (rsurface.array_deformedvertex3f  + 3 * surface->num_firstvertex) + j*3;
4885                                         VectorCopy((rsurface.vertex3f  + 3 * surface->num_firstvertex) + j*3, vertex);
4886                                         // if the wavefunc depends on time, evaluate it per-vertex
4887                                         if (waveparms[3])
4888                                         {
4889                                                 waveparms[2] = deform->waveparms[2] + (vertex[0] + vertex[1] + vertex[2]) * animpos;
4890                                                 scale = R_EvaluateQ3WaveFunc(deform->wavefunc, waveparms);
4891                                         }
4892                                         VectorMA(vertex, scale, (rsurface.normal3f  + 3 * surface->num_firstvertex) + j*3, vertex);
4893                                 }
4894                         }
4895                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4896                         rsurface.vertex3f_bufferobject = 0;
4897                         rsurface.vertex3f_bufferoffset = 0;
4898                         break;
4899                 case Q3DEFORM_BULGE:
4900                         // deform vertex array to make the surface have moving bulges
4901                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4902                         {
4903                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4904                                 for (j = 0;j < surface->num_vertices;j++)
4905                                 {
4906                                         scale = sin((rsurface.modeltexcoordtexture2f[2 * (surface->num_firstvertex + j)] * deform->parms[0] + r_refdef.scene.time * deform->parms[2])) * deform->parms[1];
4907                                         VectorMA(rsurface.vertex3f + 3 * (surface->num_firstvertex + j), scale, rsurface.normal3f + 3 * (surface->num_firstvertex + j), rsurface.array_deformedvertex3f + 3 * (surface->num_firstvertex + j));
4908                                 }
4909                         }
4910                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4911                         rsurface.vertex3f_bufferobject = 0;
4912                         rsurface.vertex3f_bufferoffset = 0;
4913                         break;
4914                 case Q3DEFORM_MOVE:
4915                         // deform vertex array
4916                         scale = R_EvaluateQ3WaveFunc(deform->wavefunc, deform->waveparms);
4917                         VectorScale(deform->parms, scale, waveparms);
4918                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4919                         {
4920                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4921                                 for (j = 0;j < surface->num_vertices;j++)
4922                                         VectorAdd(rsurface.vertex3f + 3 * (surface->num_firstvertex + j), waveparms, rsurface.array_deformedvertex3f + 3 * (surface->num_firstvertex + j));
4923                         }
4924                         rsurface.vertex3f = rsurface.array_deformedvertex3f;
4925                         rsurface.vertex3f_bufferobject = 0;
4926                         rsurface.vertex3f_bufferoffset = 0;
4927                         break;
4928                 }
4929         }
4930         // generate texcoords based on the chosen texcoord source
4931         switch(rsurface.texture->tcgen.tcgen)
4932         {
4933         default:
4934         case Q3TCGEN_TEXTURE:
4935                 rsurface.texcoordtexture2f               = rsurface.modeltexcoordtexture2f;
4936                 rsurface.texcoordtexture2f_bufferobject  = rsurface.modeltexcoordtexture2f_bufferobject;
4937                 rsurface.texcoordtexture2f_bufferoffset  = rsurface.modeltexcoordtexture2f_bufferoffset;
4938                 break;
4939         case Q3TCGEN_LIGHTMAP:
4940                 rsurface.texcoordtexture2f               = rsurface.modeltexcoordlightmap2f;
4941                 rsurface.texcoordtexture2f_bufferobject  = rsurface.modeltexcoordlightmap2f_bufferobject;
4942                 rsurface.texcoordtexture2f_bufferoffset  = rsurface.modeltexcoordlightmap2f_bufferoffset;
4943                 break;
4944         case Q3TCGEN_VECTOR:
4945                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4946                 {
4947                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4948                         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)
4949                         {
4950                                 out_tc[0] = DotProduct(v1, rsurface.texture->tcgen.parms);
4951                                 out_tc[1] = DotProduct(v1, rsurface.texture->tcgen.parms + 3);
4952                         }
4953                 }
4954                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
4955                 rsurface.texcoordtexture2f_bufferobject  = 0;
4956                 rsurface.texcoordtexture2f_bufferoffset  = 0;
4957                 break;
4958         case Q3TCGEN_ENVIRONMENT:
4959                 // make environment reflections using a spheremap
4960                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4961                 {
4962                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4963                         const float *vertex = rsurface.modelvertex3f + 3 * surface->num_firstvertex;
4964                         const float *normal = rsurface.modelnormal3f + 3 * surface->num_firstvertex;
4965                         float *out_tc = rsurface.array_generatedtexcoordtexture2f + 2 * surface->num_firstvertex;
4966                         for (j = 0;j < surface->num_vertices;j++, vertex += 3, normal += 3, out_tc += 2)
4967                         {
4968                                 float l, d, eyedir[3];
4969                                 VectorSubtract(rsurface.modelorg, vertex, eyedir);
4970                                 l = 0.5f / VectorLength(eyedir);
4971                                 d = DotProduct(normal, eyedir)*2;
4972                                 out_tc[0] = 0.5f + (normal[1]*d - eyedir[1])*l;
4973                                 out_tc[1] = 0.5f - (normal[2]*d - eyedir[2])*l;
4974                         }
4975                 }
4976                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
4977                 rsurface.texcoordtexture2f_bufferobject  = 0;
4978                 rsurface.texcoordtexture2f_bufferoffset  = 0;
4979                 break;
4980         }
4981         // the only tcmod that needs software vertex processing is turbulent, so
4982         // check for it here and apply the changes if needed
4983         // and we only support that as the first one
4984         // (handling a mixture of turbulent and other tcmods would be problematic
4985         //  without punting it entirely to a software path)
4986         if (rsurface.texture->tcmods[0].tcmod == Q3TCMOD_TURBULENT)
4987         {
4988                 amplitude = rsurface.texture->tcmods[0].parms[1];
4989                 animpos = rsurface.texture->tcmods[0].parms[2] + r_refdef.scene.time * rsurface.texture->tcmods[0].parms[3];
4990                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
4991                 {
4992                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
4993                         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)
4994                         {
4995                                 out_tc[0] = in_tc[0] + amplitude * sin(((v1[0] + v1[2]) * 1.0 / 1024.0f + animpos) * M_PI * 2);
4996                                 out_tc[1] = in_tc[1] + amplitude * sin(((v1[1]        ) * 1.0 / 1024.0f + animpos) * M_PI * 2);
4997                         }
4998                 }
4999                 rsurface.texcoordtexture2f               = rsurface.array_generatedtexcoordtexture2f;
5000                 rsurface.texcoordtexture2f_bufferobject  = 0;
5001                 rsurface.texcoordtexture2f_bufferoffset  = 0;
5002         }
5003         rsurface.texcoordlightmap2f              = rsurface.modeltexcoordlightmap2f;
5004         rsurface.texcoordlightmap2f_bufferobject = rsurface.modeltexcoordlightmap2f_bufferobject;
5005         rsurface.texcoordlightmap2f_bufferoffset = rsurface.modeltexcoordlightmap2f_bufferoffset;
5006         R_Mesh_VertexPointer(rsurface.vertex3f, rsurface.vertex3f_bufferobject, rsurface.vertex3f_bufferoffset);
5007 }
5008
5009 void RSurf_DrawBatch_Simple(int texturenumsurfaces, msurface_t **texturesurfacelist)
5010 {
5011         int i, j;
5012         const msurface_t *surface = texturesurfacelist[0];
5013         const msurface_t *surface2;
5014         int firstvertex;
5015         int endvertex;
5016         int numvertices;
5017         int numtriangles;
5018         // TODO: lock all array ranges before render, rather than on each surface
5019         if (texturenumsurfaces == 1)
5020         {
5021                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5022                 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));
5023         }
5024         else if (r_batchmode.integer == 2)
5025         {
5026                 #define MAXBATCHTRIANGLES 4096
5027                 int batchtriangles = 0;
5028                 int batchelements[MAXBATCHTRIANGLES*3];
5029                 for (i = 0;i < texturenumsurfaces;i = j)
5030                 {
5031                         surface = texturesurfacelist[i];
5032                         j = i + 1;
5033                         if (surface->num_triangles > MAXBATCHTRIANGLES)
5034                         {
5035                                 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));
5036                                 continue;
5037                         }
5038                         memcpy(batchelements, rsurface.modelelement3i + 3 * surface->num_firsttriangle, surface->num_triangles * sizeof(int[3]));
5039                         batchtriangles = surface->num_triangles;
5040                         firstvertex = surface->num_firstvertex;
5041                         endvertex = surface->num_firstvertex + surface->num_vertices;
5042                         for (;j < texturenumsurfaces;j++)
5043                         {
5044                                 surface2 = texturesurfacelist[j];
5045                                 if (batchtriangles + surface2->num_triangles > MAXBATCHTRIANGLES)
5046                                         break;
5047                                 memcpy(batchelements + batchtriangles * 3, rsurface.modelelement3i + 3 * surface2->num_firsttriangle, surface2->num_triangles * sizeof(int[3]));
5048                                 batchtriangles += surface2->num_triangles;
5049                                 firstvertex = min(firstvertex, surface2->num_firstvertex);
5050                                 endvertex = max(endvertex, surface2->num_firstvertex + surface2->num_vertices);
5051                         }
5052                         surface2 = texturesurfacelist[j-1];
5053                         numvertices = endvertex - firstvertex;
5054                         R_Mesh_Draw(firstvertex, numvertices, batchtriangles, batchelements, 0, 0);
5055                 }
5056         }
5057         else if (r_batchmode.integer == 1)
5058         {
5059                 for (i = 0;i < texturenumsurfaces;i = j)
5060                 {
5061                         surface = texturesurfacelist[i];
5062                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5063                                 if (texturesurfacelist[j] != surface2)
5064                                         break;
5065                         surface2 = texturesurfacelist[j-1];
5066                         numvertices = surface2->num_firstvertex + surface2->num_vertices - surface->num_firstvertex;
5067                         numtriangles = surface2->num_firsttriangle + surface2->num_triangles - surface->num_firsttriangle;
5068                         GL_LockArrays(surface->num_firstvertex, numvertices);
5069                         R_Mesh_Draw(surface->num_firstvertex, numvertices, numtriangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5070                 }
5071         }
5072         else
5073         {
5074                 for (i = 0;i < texturenumsurfaces;i++)
5075                 {
5076                         surface = texturesurfacelist[i];
5077                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5078                         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));
5079                 }
5080         }
5081 }
5082
5083 static void RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(int texturenumsurfaces, msurface_t **texturesurfacelist, int lightmaptexunit, int deluxemaptexunit, int refractiontexunit, int reflectiontexunit)
5084 {
5085         int i, planeindex, vertexindex;
5086         float d, bestd;
5087         vec3_t vert;
5088         const float *v;
5089         r_waterstate_waterplane_t *p, *bestp;
5090         msurface_t *surface;
5091         if (r_waterstate.renderingscene)
5092                 return;
5093         for (i = 0;i < texturenumsurfaces;i++)
5094         {
5095                 surface = texturesurfacelist[i];
5096                 if (lightmaptexunit >= 0)
5097                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5098                 if (deluxemaptexunit >= 0)
5099                         R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5100                 // pick the closest matching water plane
5101                 bestd = 0;
5102                 bestp = NULL;
5103                 for (planeindex = 0, p = r_waterstate.waterplanes;planeindex < r_waterstate.numwaterplanes;planeindex++, p++)
5104                 {
5105                         d = 0;
5106                         for (vertexindex = 0, v = rsurface.modelvertex3f + surface->num_firstvertex * 3;vertexindex < surface->num_vertices;vertexindex++, v += 3)
5107                         {
5108                                 Matrix4x4_Transform(&rsurface.matrix, v, vert);
5109                                 d += fabs(PlaneDiff(vert, &p->plane));
5110                         }
5111                         if (bestd > d || !bestp)
5112                         {
5113                                 bestd = d;
5114                                 bestp = p;
5115                         }
5116                 }
5117                 if (bestp)
5118                 {
5119                         if (refractiontexunit >= 0)
5120                                 R_Mesh_TexBind(refractiontexunit, R_GetTexture(bestp->texture_refraction));
5121                         if (reflectiontexunit >= 0)
5122                                 R_Mesh_TexBind(reflectiontexunit, R_GetTexture(bestp->texture_reflection));
5123                 }
5124                 else
5125                 {
5126                         if (refractiontexunit >= 0)
5127                                 R_Mesh_TexBind(refractiontexunit, R_GetTexture(r_texture_black));
5128                         if (reflectiontexunit >= 0)
5129                                 R_Mesh_TexBind(reflectiontexunit, R_GetTexture(r_texture_black));
5130                 }
5131                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5132                 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));
5133         }
5134 }
5135
5136 static void RSurf_DrawBatch_WithLightmapSwitching(int texturenumsurfaces, msurface_t **texturesurfacelist, int lightmaptexunit, int deluxemaptexunit)
5137 {
5138         int i;
5139         int j;
5140         const msurface_t *surface = texturesurfacelist[0];
5141         const msurface_t *surface2;
5142         int firstvertex;
5143         int endvertex;
5144         int numvertices;
5145         int numtriangles;
5146         // TODO: lock all array ranges before render, rather than on each surface
5147         if (texturenumsurfaces == 1)
5148         {
5149                 R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5150                 if (deluxemaptexunit >= 0)
5151                         R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5152                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5153                 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));
5154         }
5155         else if (r_batchmode.integer == 2)
5156         {
5157                 #define MAXBATCHTRIANGLES 4096
5158                 int batchtriangles = 0;
5159                 int batchelements[MAXBATCHTRIANGLES*3];
5160                 for (i = 0;i < texturenumsurfaces;i = j)
5161                 {
5162                         surface = texturesurfacelist[i];
5163                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5164                         if (deluxemaptexunit >= 0)
5165                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5166                         j = i + 1;
5167                         if (surface->num_triangles > MAXBATCHTRIANGLES)
5168                         {
5169                                 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));
5170                                 continue;
5171                         }
5172                         memcpy(batchelements, rsurface.modelelement3i + 3 * surface->num_firsttriangle, surface->num_triangles * sizeof(int[3]));
5173                         batchtriangles = surface->num_triangles;
5174                         firstvertex = surface->num_firstvertex;
5175                         endvertex = surface->num_firstvertex + surface->num_vertices;
5176                         for (;j < texturenumsurfaces;j++)
5177                         {
5178                                 surface2 = texturesurfacelist[j];
5179                                 if (surface2->lightmaptexture != surface->lightmaptexture || batchtriangles + surface2->num_triangles > MAXBATCHTRIANGLES)
5180                                         break;
5181                                 memcpy(batchelements + batchtriangles * 3, rsurface.modelelement3i + 3 * surface2->num_firsttriangle, surface2->num_triangles * sizeof(int[3]));
5182                                 batchtriangles += surface2->num_triangles;
5183                                 firstvertex = min(firstvertex, surface2->num_firstvertex);
5184                                 endvertex = max(endvertex, surface2->num_firstvertex + surface2->num_vertices);
5185                         }
5186                         surface2 = texturesurfacelist[j-1];
5187                         numvertices = endvertex - firstvertex;
5188                         R_Mesh_Draw(firstvertex, numvertices, batchtriangles, batchelements, 0, 0);
5189                 }
5190         }
5191         else if (r_batchmode.integer == 1)
5192         {
5193 #if 0
5194                 Con_Printf("%s batch sizes ignoring lightmap:", rsurface.texture->name);
5195                 for (i = 0;i < texturenumsurfaces;i = j)
5196                 {
5197                         surface = texturesurfacelist[i];
5198                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5199                                 if (texturesurfacelist[j] != surface2)
5200                                         break;
5201                         Con_Printf(" %i", j - i);
5202                 }
5203                 Con_Printf("\n");
5204                 Con_Printf("%s batch sizes honoring lightmap:", rsurface.texture->name);
5205 #endif
5206                 for (i = 0;i < texturenumsurfaces;i = j)
5207                 {
5208                         surface = texturesurfacelist[i];
5209                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5210                         if (deluxemaptexunit >= 0)
5211                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5212                         for (j = i + 1, surface2 = surface + 1;j < texturenumsurfaces;j++, surface2++)
5213                                 if (texturesurfacelist[j] != surface2 || texturesurfacelist[j]->lightmaptexture != surface->lightmaptexture)
5214                                         break;
5215 #if 0
5216                         Con_Printf(" %i", j - i);
5217 #endif
5218                         surface2 = texturesurfacelist[j-1];
5219                         numvertices = surface2->num_firstvertex + surface2->num_vertices - surface->num_firstvertex;
5220                         numtriangles = surface2->num_firsttriangle + surface2->num_triangles - surface->num_firsttriangle;
5221                         GL_LockArrays(surface->num_firstvertex, numvertices);
5222                         R_Mesh_Draw(surface->num_firstvertex, numvertices, numtriangles, (rsurface.modelelement3i + 3 * surface->num_firsttriangle), rsurface.modelelement3i_bufferobject, (sizeof(int[3]) * surface->num_firsttriangle));
5223                 }
5224 #if 0
5225                 Con_Printf("\n");
5226 #endif
5227         }
5228         else
5229         {
5230                 for (i = 0;i < texturenumsurfaces;i++)
5231                 {
5232                         surface = texturesurfacelist[i];
5233                         R_Mesh_TexBind(lightmaptexunit, R_GetTexture(surface->lightmaptexture));
5234                         if (deluxemaptexunit >= 0)
5235                                 R_Mesh_TexBind(deluxemaptexunit, R_GetTexture(surface->deluxemaptexture));
5236                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5237                         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));
5238                 }
5239         }
5240 }
5241
5242 static void RSurf_DrawBatch_ShowSurfaces(int texturenumsurfaces, msurface_t **texturesurfacelist)
5243 {
5244         int j;
5245         int texturesurfaceindex;
5246         if (r_showsurfaces.integer == 2)
5247         {
5248                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5249                 {
5250                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5251                         for (j = 0;j < surface->num_triangles;j++)
5252                         {
5253                                 float f = ((j + surface->num_firsttriangle) & 31) * (1.0f / 31.0f) * r_refdef.view.colorscale;
5254                                 GL_Color(f, f, f, 1);
5255                                 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)));
5256                         }
5257                 }
5258         }
5259         else
5260         {
5261                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5262                 {
5263                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5264                         int k = (int)(((size_t)surface) / sizeof(msurface_t));
5265                         GL_Color((k & 15) * (1.0f / 16.0f) * r_refdef.view.colorscale, ((k >> 4) & 15) * (1.0f / 16.0f) * r_refdef.view.colorscale, ((k >> 8) & 15) * (1.0f / 16.0f) * r_refdef.view.colorscale, 1);
5266                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
5267                         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));
5268                 }
5269         }
5270 }
5271
5272 static void RSurf_DrawBatch_GL11_ApplyFog(int texturenumsurfaces, msurface_t **texturesurfacelist)
5273 {
5274         int texturesurfaceindex;
5275         int i;
5276         float f;
5277         float *v, *c, *c2;
5278         if (rsurface.lightmapcolor4f)
5279         {
5280                 // generate color arrays for the surfaces in this list
5281                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5282                 {
5283                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5284                         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)
5285                         {
5286                                 f = FogPoint_Model(v);
5287                                 c2[0] = c[0] * f;
5288                                 c2[1] = c[1] * f;
5289                                 c2[2] = c[2] * f;
5290                                 c2[3] = c[3];
5291                         }
5292                 }
5293         }
5294         else
5295         {
5296                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5297                 {
5298                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5299                         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)
5300                         {
5301                                 f = FogPoint_Model(v);
5302                                 c2[0] = f;
5303                                 c2[1] = f;
5304                                 c2[2] = f;
5305                                 c2[3] = 1;
5306                         }
5307                 }
5308         }
5309         rsurface.lightmapcolor4f = rsurface.array_color4f;
5310         rsurface.lightmapcolor4f_bufferobject = 0;
5311         rsurface.lightmapcolor4f_bufferoffset = 0;
5312 }
5313
5314 static void RSurf_DrawBatch_GL11_ApplyColor(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a)
5315 {
5316         int texturesurfaceindex;
5317         int i;
5318         float *c, *c2;
5319         if (!rsurface.lightmapcolor4f)
5320                 return;
5321         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5322         {
5323                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5324                 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)
5325                 {
5326                         c2[0] = c[0] * r;
5327                         c2[1] = c[1] * g;
5328                         c2[2] = c[2] * b;
5329                         c2[3] = c[3] * a;
5330                 }
5331         }
5332         rsurface.lightmapcolor4f = rsurface.array_color4f;
5333         rsurface.lightmapcolor4f_bufferobject = 0;
5334         rsurface.lightmapcolor4f_bufferoffset = 0;
5335 }
5336
5337 static void RSurf_DrawBatch_GL11_Lightmap(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5338 {
5339         // TODO: optimize
5340         rsurface.lightmapcolor4f = NULL;
5341         rsurface.lightmapcolor4f_bufferobject = 0;
5342         rsurface.lightmapcolor4f_bufferoffset = 0;
5343         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5344         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5345         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5346         GL_Color(r, g, b, a);
5347         RSurf_DrawBatch_WithLightmapSwitching(texturenumsurfaces, texturesurfacelist, 0, -1);
5348 }
5349
5350 static void RSurf_DrawBatch_GL11_Unlit(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5351 {
5352         // TODO: optimize applyfog && applycolor case
5353         // just apply fog if necessary, and tint the fog color array if necessary
5354         rsurface.lightmapcolor4f = NULL;
5355         rsurface.lightmapcolor4f_bufferobject = 0;
5356         rsurface.lightmapcolor4f_bufferoffset = 0;
5357         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5358         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5359         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5360         GL_Color(r, g, b, a);
5361         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5362 }
5363
5364 static void RSurf_DrawBatch_GL11_VertexColor(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5365 {
5366         int texturesurfaceindex;
5367         int i;
5368         float *c;
5369         // TODO: optimize
5370         if (texturesurfacelist[0]->lightmapinfo && texturesurfacelist[0]->lightmapinfo->stainsamples)
5371         {
5372                 // generate color arrays for the surfaces in this list
5373                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5374                 {
5375                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5376                         for (i = 0, c = rsurface.array_color4f + 4 * surface->num_firstvertex;i < surface->num_vertices;i++, c += 4)
5377                         {
5378                                 if (surface->lightmapinfo->samples)
5379                                 {
5380                                         const unsigned char *lm = surface->lightmapinfo->samples + (rsurface.modellightmapoffsets + surface->num_firstvertex)[i];
5381                                         float scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[0]] * (1.0f / 32768.0f);
5382                                         VectorScale(lm, scale, c);
5383                                         if (surface->lightmapinfo->styles[1] != 255)
5384                                         {
5385                                                 int size3 = ((surface->lightmapinfo->extents[0]>>4)+1)*((surface->lightmapinfo->extents[1]>>4)+1)*3;
5386                                                 lm += size3;
5387                                                 scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[1]] * (1.0f / 32768.0f);
5388                                                 VectorMA(c, scale, lm, c);
5389                                                 if (surface->lightmapinfo->styles[2] != 255)
5390                                                 {
5391                                                         lm += size3;
5392                                                         scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[2]] * (1.0f / 32768.0f);
5393                                                         VectorMA(c, scale, lm, c);
5394                                                         if (surface->lightmapinfo->styles[3] != 255)
5395                                                         {
5396                                                                 lm += size3;
5397                                                                 scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[3]] * (1.0f / 32768.0f);
5398                                                                 VectorMA(c, scale, lm, c);
5399                                                         }
5400                                                 }
5401                                         }
5402                                 }
5403                                 else
5404                                         VectorClear(c);
5405                                 c[3] = 1;
5406                         }
5407                 }
5408                 rsurface.lightmapcolor4f = rsurface.array_color4f;
5409                 rsurface.lightmapcolor4f_bufferobject = 0;
5410                 rsurface.lightmapcolor4f_bufferoffset = 0;
5411         }
5412         else
5413         {
5414                 rsurface.lightmapcolor4f = rsurface.modellightmapcolor4f;
5415                 rsurface.lightmapcolor4f_bufferobject = rsurface.modellightmapcolor4f_bufferobject;
5416                 rsurface.lightmapcolor4f_bufferoffset = rsurface.modellightmapcolor4f_bufferoffset;
5417         }
5418         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5419         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5420         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5421         GL_Color(r, g, b, a);
5422         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5423 }
5424
5425 static void RSurf_DrawBatch_GL11_VertexShade(int texturenumsurfaces, msurface_t **texturesurfacelist, float r, float g, float b, float a, qboolean applycolor, qboolean applyfog)
5426 {
5427         int texturesurfaceindex;
5428         int i;
5429         float f;
5430         float *v, *c, *c2;
5431         vec3_t ambientcolor;
5432         vec3_t diffusecolor;
5433         vec3_t lightdir;
5434         // TODO: optimize
5435         // model lighting
5436         VectorCopy(rsurface.modellight_lightdir, lightdir);
5437         f = 0.5f * r_refdef.lightmapintensity;
5438         ambientcolor[0] = rsurface.modellight_ambient[0] * r * f;
5439         ambientcolor[1] = rsurface.modellight_ambient[1] * g * f;
5440         ambientcolor[2] = rsurface.modellight_ambient[2] * b * f;
5441         diffusecolor[0] = rsurface.modellight_diffuse[0] * r * f;
5442         diffusecolor[1] = rsurface.modellight_diffuse[1] * g * f;
5443         diffusecolor[2] = rsurface.modellight_diffuse[2] * b * f;
5444         if (VectorLength2(diffusecolor) > 0)
5445         {
5446                 // generate color arrays for the surfaces in this list
5447                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5448                 {
5449                         const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5450                         int numverts = surface->num_vertices;
5451                         v = rsurface.vertex3f + 3 * surface->num_firstvertex;
5452                         c2 = rsurface.normal3f + 3 * surface->num_firstvertex;
5453                         c = rsurface.array_color4f + 4 * surface->num_firstvertex;
5454                         // q3-style directional shading
5455                         for (i = 0;i < numverts;i++, v += 3, c2 += 3, c += 4)
5456                         {
5457                                 if ((f = DotProduct(c2, lightdir)) > 0)
5458                                         VectorMA(ambientcolor, f, diffusecolor, c);
5459                                 else
5460                                         VectorCopy(ambientcolor, c);
5461                                 c[3] = a;
5462                         }
5463                 }
5464                 r = 1;
5465                 g = 1;
5466                 b = 1;
5467                 a = 1;
5468                 applycolor = false;
5469                 rsurface.lightmapcolor4f = rsurface.array_color4f;
5470                 rsurface.lightmapcolor4f_bufferobject = 0;
5471                 rsurface.lightmapcolor4f_bufferoffset = 0;
5472         }
5473         else
5474         {
5475                 r = ambientcolor[0];
5476                 g = ambientcolor[1];
5477                 b = ambientcolor[2];
5478                 rsurface.lightmapcolor4f = NULL;
5479                 rsurface.lightmapcolor4f_bufferobject = 0;
5480                 rsurface.lightmapcolor4f_bufferoffset = 0;
5481         }
5482         if (applyfog)   RSurf_DrawBatch_GL11_ApplyFog(texturenumsurfaces, texturesurfacelist);
5483         if (applycolor) RSurf_DrawBatch_GL11_ApplyColor(texturenumsurfaces, texturesurfacelist, r, g, b, a);
5484         R_Mesh_ColorPointer(rsurface.lightmapcolor4f, rsurface.lightmapcolor4f_bufferobject, rsurface.lightmapcolor4f_bufferoffset);
5485         GL_Color(r, g, b, a);
5486         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5487 }
5488
5489 void RSurf_SetupDepthAndCulling(void)
5490 {
5491         // submodels are biased to avoid z-fighting with world surfaces that they
5492         // may be exactly overlapping (avoids z-fighting artifacts on certain
5493         // doors and things in Quake maps)
5494         GL_DepthRange(0, (rsurface.texture->currentmaterialflags & MATERIALFLAG_SHORTDEPTHRANGE) ? 0.0625 : 1);
5495         GL_PolygonOffset(rsurface.basepolygonfactor + rsurface.texture->biaspolygonfactor, rsurface.basepolygonoffset + rsurface.texture->biaspolygonoffset);
5496         GL_DepthTest(!(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST));
5497         GL_CullFace((rsurface.texture->currentmaterialflags & MATERIALFLAG_NOCULLFACE) ? GL_NONE : r_refdef.view.cullface_back);
5498 }
5499
5500 static void R_DrawTextureSurfaceList_ShowSurfaces(int texturenumsurfaces, msurface_t **texturesurfacelist)
5501 {
5502         RSurf_SetupDepthAndCulling();
5503         if (rsurface.mode != RSURFMODE_SHOWSURFACES)
5504         {
5505                 rsurface.mode = RSURFMODE_SHOWSURFACES;
5506                 GL_DepthMask(true);
5507                 GL_BlendFunc(GL_ONE, GL_ZERO);
5508                 R_Mesh_ColorPointer(NULL, 0, 0);
5509                 R_Mesh_ResetTextureState();
5510         }
5511         RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
5512         RSurf_DrawBatch_ShowSurfaces(texturenumsurfaces, texturesurfacelist);
5513 }
5514
5515 static void R_DrawTextureSurfaceList_Sky(int texturenumsurfaces, msurface_t **texturesurfacelist)
5516 {
5517         // transparent sky would be ridiculous
5518         if ((rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED))
5519                 return;
5520         if (rsurface.mode != RSURFMODE_SKY)
5521         {
5522                 if (rsurface.mode == RSURFMODE_GLSL)
5523                 {
5524                         qglUseProgramObjectARB(0);CHECKGLERROR
5525                 }
5526                 rsurface.mode = RSURFMODE_SKY;
5527         }
5528         if (skyrendernow)
5529         {
5530                 skyrendernow = false;
5531                 R_Sky();
5532                 // restore entity matrix
5533                 R_Mesh_Matrix(&rsurface.matrix);
5534         }
5535         RSurf_SetupDepthAndCulling();
5536         GL_DepthMask(true);
5537         // LordHavoc: HalfLife maps have freaky skypolys so don't use
5538         // skymasking on them, and Quake3 never did sky masking (unlike
5539         // software Quake and software Quake2), so disable the sky masking
5540         // in Quake3 maps as it causes problems with q3map2 sky tricks,
5541         // and skymasking also looks very bad when noclipping outside the
5542         // level, so don't use it then either.
5543         if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->type == mod_brushq1 && r_q1bsp_skymasking.integer && !r_refdef.viewcache.world_novis)
5544         {
5545                 GL_Color(r_refdef.fogcolor[0], r_refdef.fogcolor[1], r_refdef.fogcolor[2], 1);
5546                 R_Mesh_ColorPointer(NULL, 0, 0);
5547                 R_Mesh_ResetTextureState();
5548                 if (skyrendermasked)
5549                 {
5550                         // depth-only (masking)
5551                         GL_ColorMask(0,0,0,0);
5552                         // just to make sure that braindead drivers don't draw
5553                         // anything despite that colormask...
5554                         GL_BlendFunc(GL_ZERO, GL_ONE);
5555                 }
5556                 else
5557                 {
5558                         // fog sky
5559                         GL_BlendFunc(GL_ONE, GL_ZERO);
5560                 }
5561                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
5562                 RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5563                 if (skyrendermasked)
5564                         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
5565         }
5566 }
5567
5568 static void R_DrawTextureSurfaceList_GL20(int texturenumsurfaces, msurface_t **texturesurfacelist)
5569 {
5570         if (r_waterstate.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION)))
5571                 return;
5572
5573         if (rsurface.mode != RSURFMODE_GLSL)
5574         {
5575                 rsurface.mode = RSURFMODE_GLSL;
5576                 R_Mesh_ResetTextureState();
5577                 GL_Color(1, 1, 1, 1);
5578         }
5579
5580         R_Mesh_TexMatrix(0, &rsurface.texture->currenttexmatrix);
5581         R_Mesh_TexBind(0, R_GetTexture(rsurface.texture->currentskinframe->nmap));
5582         R_Mesh_TexBind(1, R_GetTexture(rsurface.texture->basetexture));
5583         R_Mesh_TexBind(2, R_GetTexture(rsurface.texture->glosstexture));
5584         R_Mesh_TexBind(4, R_GetTexture(r_texture_fogattenuation));
5585         R_Mesh_TexBind(5, R_GetTexture(rsurface.texture->currentskinframe->pants));
5586         R_Mesh_TexBind(6, R_GetTexture(rsurface.texture->currentskinframe->shirt));
5587         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
5588         {
5589                 R_Mesh_TexBind(7, R_GetTexture(r_texture_grey128));
5590                 R_Mesh_TexBind(8, R_GetTexture(r_texture_blanknormalmap));
5591                 R_Mesh_ColorPointer(NULL, 0, 0);
5592         }
5593         else if (rsurface.uselightmaptexture)
5594         {
5595                 R_Mesh_TexBind(7, R_GetTexture(texturesurfacelist[0]->lightmaptexture));
5596                 R_Mesh_TexBind(8, R_GetTexture(texturesurfacelist[0]->deluxemaptexture));
5597                 R_Mesh_ColorPointer(NULL, 0, 0);
5598         }
5599         else
5600         {
5601                 R_Mesh_TexBind(7, R_GetTexture(r_texture_white));
5602                 R_Mesh_TexBind(8, R_GetTexture(r_texture_blanknormalmap));
5603                 R_Mesh_ColorPointer(rsurface.modellightmapcolor4f, rsurface.modellightmapcolor4f_bufferobject, rsurface.modellightmapcolor4f_bufferoffset);
5604         }
5605         R_Mesh_TexBind(9, R_GetTexture(rsurface.texture->currentskinframe->glow));
5606         R_Mesh_TexBind(11, R_GetTexture(r_texture_white)); // changed per surface
5607         R_Mesh_TexBind(12, R_GetTexture(r_texture_white)); // changed per surface
5608
5609         if (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
5610         {
5611                 // render background
5612                 GL_BlendFunc(GL_ONE, GL_ZERO);
5613                 GL_DepthMask(true);
5614                 GL_AlphaTest(false);
5615
5616                 GL_Color(1, 1, 1, 1);
5617                 R_Mesh_ColorPointer(NULL, 0, 0);
5618
5619                 R_SetupSurfaceShader(vec3_origin, rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT, 1, 1, rsurface.texture->specularscale, RSURFPASS_BACKGROUND);
5620                 if (r_glsl_permutation)
5621                 {
5622                         RSurf_PrepareVerticesForBatch(true, true, texturenumsurfaces, texturesurfacelist);
5623                         R_Mesh_TexCoordPointer(0, 2, rsurface.texcoordtexture2f, rsurface.texcoordtexture2f_bufferobject, rsurface.texcoordtexture2f_bufferoffset);
5624                         R_Mesh_TexCoordPointer(1, 3, rsurface.svector3f, rsurface.svector3f_bufferobject, rsurface.svector3f_bufferoffset);
5625                         R_Mesh_TexCoordPointer(2, 3, rsurface.tvector3f, rsurface.tvector3f_bufferobject, rsurface.tvector3f_bufferoffset);
5626                         R_Mesh_TexCoordPointer(3, 3, rsurface.normal3f, rsurface.normal3f_bufferobject, rsurface.normal3f_bufferoffset);
5627                         R_Mesh_TexCoordPointer(4, 2, rsurface.modeltexcoordlightmap2f, rsurface.modeltexcoordlightmap2f_bufferobject, rsurface.modeltexcoordlightmap2f_bufferoffset);
5628                         RSurf_DrawBatch_WithLightmapSwitching_WithWaterTextureSwitching(texturenumsurfaces, texturesurfacelist, -1, -1, r_glsl_permutation->loc_Texture_Refraction ? 11 : -1, r_glsl_permutation->loc_Texture_Reflection ? 12 : -1);
5629                 }
5630
5631                 GL_BlendFunc(rsurface.texture->currentlayers[0].blendfunc1, rsurface.texture->currentlayers[0].blendfunc2);
5632                 GL_DepthMask(false);
5633                 GL_AlphaTest((rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST) != 0);
5634                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
5635                 {
5636                         R_Mesh_TexBind(7, R_GetTexture(r_texture_grey128));
5637                         R_Mesh_TexBind(8, R_GetTexture(r_texture_blanknormalmap));
5638                         R_Mesh_ColorPointer(NULL, 0, 0);
5639                 }
5640                 else if (rsurface.uselightmaptexture)
5641                 {
5642                         R_Mesh_TexBind(7, R_GetTexture(texturesurfacelist[0]->lightmaptexture));
5643                         R_Mesh_TexBind(8, R_GetTexture(texturesurfacelist[0]->deluxemaptexture));
5644                         R_Mesh_ColorPointer(NULL, 0, 0);
5645                 }
5646                 else
5647                 {
5648                         R_Mesh_TexBind(7, R_GetTexture(r_texture_white));
5649                         R_Mesh_TexBind(8, R_GetTexture(r_texture_blanknormalmap));
5650                         R_Mesh_ColorPointer(rsurface.modellightmapcolor4f, rsurface.modellightmapcolor4f_bufferobject, rsurface.modellightmapcolor4f_bufferoffset);
5651                 }
5652                 R_Mesh_TexBind(11, R_GetTexture(r_texture_white)); // changed per surface
5653                 R_Mesh_TexBind(12, R_GetTexture(r_texture_white)); // changed per surface
5654         }
5655
5656         R_SetupSurfaceShader(vec3_origin, rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT, 1, 1, rsurface.texture->specularscale, RSURFPASS_BASE);
5657         if (!r_glsl_permutation)
5658                 return;
5659
5660         RSurf_PrepareVerticesForBatch(r_glsl_permutation->loc_Texture_Normal >= 0 || r_glsl_permutation->loc_LightDir >= 0, r_glsl_permutation->loc_Texture_Normal >= 0, texturenumsurfaces, texturesurfacelist);
5661         R_Mesh_TexCoordPointer(0, 2, rsurface.texcoordtexture2f, rsurface.texcoordtexture2f_bufferobject, rsurface.texcoordtexture2f_bufferoffset);
5662         R_Mesh_TexCoordPointer(1, 3, rsurface.svector3f, rsurface.svector3f_bufferobject, rsurface.svector3f_bufferoffset);
5663         R_Mesh_TexCoordPointer(2, 3, rsurface.tvector3f, rsurface.tvector3f_bufferobject, rsurface.tvector3f_bufferoffset);
5664         R_Mesh_TexCoordPointer(3, 3, rsurface.normal3f, rsurface.normal3f_bufferobject, rsurface.normal3f_bufferoffset);
5665         R_Mesh_TexCoordPointer(4, 2, rsurface.modeltexcoordlightmap2f, rsurface.modeltexcoordlightmap2f_bufferobject, rsurface.modeltexcoordlightmap2f_bufferoffset);
5666
5667         if (r_glsl_permutation->loc_Texture_Refraction >= 0)
5668         {
5669                 GL_BlendFunc(GL_ONE, GL_ZERO);
5670                 GL_DepthMask(true);
5671                 GL_AlphaTest(false);
5672         }
5673
5674         if (rsurface.uselightmaptexture && !(rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT))
5675         {
5676                 if (r_glsl_permutation->loc_Texture_Refraction >= 0 || r_glsl_permutation->loc_Texture_Reflection >= 0)
5677                         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);
5678                 else
5679                         RSurf_DrawBatch_WithLightmapSwitching(texturenumsurfaces, texturesurfacelist, 7, r_glsl_permutation->loc_Texture_Deluxemap >= 0 ? 8 : -1);
5680         }
5681         else
5682         {
5683                 if (r_glsl_permutation->loc_Texture_Refraction >= 0 || r_glsl_permutation->loc_Texture_Reflection >= 0)
5684                         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);
5685                 else
5686                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5687         }
5688         if (rsurface.texture->backgroundnumskinframes && !(rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED))
5689         {
5690         }
5691 }
5692
5693 static void R_DrawTextureSurfaceList_GL13(int texturenumsurfaces, msurface_t **texturesurfacelist)
5694 {
5695         // OpenGL 1.3 path - anything not completely ancient
5696         int texturesurfaceindex;
5697         qboolean applycolor;
5698         qboolean applyfog;
5699         rmeshstate_t m;
5700         int layerindex;
5701         const texturelayer_t *layer;
5702         if (rsurface.mode != RSURFMODE_MULTIPASS)
5703                 rsurface.mode = RSURFMODE_MULTIPASS;
5704         RSurf_PrepareVerticesForBatch(true, false, texturenumsurfaces, texturesurfacelist);
5705
5706         for (layerindex = 0, layer = rsurface.texture->currentlayers;layerindex < rsurface.texture->currentnumlayers;layerindex++, layer++)
5707         {
5708                 vec4_t layercolor;
5709                 int layertexrgbscale;
5710                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
5711                 {
5712                         if (layerindex == 0)
5713                                 GL_AlphaTest(true);
5714                         else
5715                         {
5716                                 GL_AlphaTest(false);
5717                                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
5718                         }
5719                 }
5720                 GL_DepthMask(layer->depthmask);
5721                 GL_BlendFunc(layer->blendfunc1, layer->blendfunc2);
5722                 if (layer->color[0] > 2 || layer->color[1] > 2 || layer->color[2] > 2)
5723                 {
5724                         layertexrgbscale = 4;
5725                         VectorScale(layer->color, 0.25f, layercolor);
5726                 }
5727                 else if (layer->color[0] > 1 || layer->color[1] > 1 || layer->color[2] > 1)
5728                 {
5729                         layertexrgbscale = 2;
5730                         VectorScale(layer->color, 0.5f, layercolor);
5731                 }
5732                 else
5733                 {
5734                         layertexrgbscale = 1;
5735                         VectorScale(layer->color, 1.0f, layercolor);
5736                 }
5737                 layercolor[3] = layer->color[3];
5738                 applycolor = layercolor[0] != 1 || layercolor[1] != 1 || layercolor[2] != 1 || layercolor[3] != 1;
5739                 R_Mesh_ColorPointer(NULL, 0, 0);
5740                 applyfog = (layer->flags & TEXTURELAYERFLAG_FOGDARKEN) != 0;
5741                 switch (layer->type)
5742                 {
5743                 case TEXTURELAYERTYPE_LITTEXTURE:
5744                         memset(&m, 0, sizeof(m));
5745                         m.tex[0] = R_GetTexture(r_texture_white);
5746                         m.pointer_texcoord[0] = rsurface.modeltexcoordlightmap2f;
5747                         m.pointer_texcoord_bufferobject[0] = rsurface.modeltexcoordlightmap2f_bufferobject;
5748                         m.pointer_texcoord_bufferoffset[0] = rsurface.modeltexcoordlightmap2f_bufferoffset;
5749                         m.tex[1] = R_GetTexture(layer->texture);
5750                         m.texmatrix[1] = layer->texmatrix;
5751                         m.texrgbscale[1] = layertexrgbscale;
5752                         m.pointer_texcoord[1] = rsurface.texcoordtexture2f;
5753                         m.pointer_texcoord_bufferobject[1] = rsurface.texcoordtexture2f_bufferobject;
5754                         m.pointer_texcoord_bufferoffset[1] = rsurface.texcoordtexture2f_bufferoffset;
5755                         R_Mesh_TextureState(&m);
5756                         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
5757                                 RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
5758                         else if (rsurface.uselightmaptexture)
5759                                 RSurf_DrawBatch_GL11_Lightmap(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
5760                         else
5761                                 RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
5762                         break;
5763                 case TEXTURELAYERTYPE_TEXTURE:
5764                         memset(&m, 0, sizeof(m));
5765                         m.tex[0] = R_GetTexture(layer->texture);
5766                         m.texmatrix[0] = layer->texmatrix;
5767                         m.texrgbscale[0] = layertexrgbscale;
5768                         m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5769                         m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5770                         m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5771                         R_Mesh_TextureState(&m);
5772                         RSurf_DrawBatch_GL11_Unlit(texturenumsurfaces, texturesurfacelist, layercolor[0], layercolor[1], layercolor[2], layercolor[3], applycolor, applyfog);
5773                         break;
5774                 case TEXTURELAYERTYPE_FOG:
5775                         memset(&m, 0, sizeof(m));
5776                         m.texrgbscale[0] = layertexrgbscale;
5777                         if (layer->texture)
5778                         {
5779                                 m.tex[0] = R_GetTexture(layer->texture);
5780                                 m.texmatrix[0] = layer->texmatrix;
5781                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5782                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5783                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5784                         }
5785                         R_Mesh_TextureState(&m);
5786                         // generate a color array for the fog pass
5787                         R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
5788                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5789                         {
5790                                 int i;
5791                                 float f, *v, *c;
5792                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5793                                 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)
5794                                 {
5795                                         f = 1 - FogPoint_Model(v);
5796                                         c[0] = layercolor[0];
5797                                         c[1] = layercolor[1];
5798                                         c[2] = layercolor[2];
5799                                         c[3] = f * layercolor[3];
5800                                 }
5801                         }
5802                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5803                         break;
5804                 default:
5805                         Con_Printf("R_DrawTextureSurfaceList: unknown layer type %i\n", layer->type);
5806                 }
5807                 GL_LockArrays(0, 0);
5808         }
5809         CHECKGLERROR
5810         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
5811         {
5812                 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
5813                 GL_AlphaTest(false);
5814         }
5815 }
5816
5817 static void R_DrawTextureSurfaceList_GL11(int texturenumsurfaces, msurface_t **texturesurfacelist)
5818 {
5819         // OpenGL 1.1 - crusty old voodoo path
5820         int texturesurfaceindex;
5821         qboolean applyfog;
5822         rmeshstate_t m;
5823         int layerindex;
5824         const texturelayer_t *layer;
5825         if (rsurface.mode != RSURFMODE_MULTIPASS)
5826                 rsurface.mode = RSURFMODE_MULTIPASS;
5827         RSurf_PrepareVerticesForBatch(true, false, texturenumsurfaces, texturesurfacelist);
5828
5829         for (layerindex = 0, layer = rsurface.texture->currentlayers;layerindex < rsurface.texture->currentnumlayers;layerindex++, layer++)
5830         {
5831                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
5832                 {
5833                         if (layerindex == 0)
5834                                 GL_AlphaTest(true);
5835                         else
5836                         {
5837                                 GL_AlphaTest(false);
5838                                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
5839                         }
5840                 }
5841                 GL_DepthMask(layer->depthmask);
5842                 GL_BlendFunc(layer->blendfunc1, layer->blendfunc2);
5843                 R_Mesh_ColorPointer(NULL, 0, 0);
5844                 applyfog = (layer->flags & TEXTURELAYERFLAG_FOGDARKEN) != 0;
5845                 switch (layer->type)
5846                 {
5847                 case TEXTURELAYERTYPE_LITTEXTURE:
5848                         if (layer->blendfunc1 == GL_ONE && layer->blendfunc2 == GL_ZERO)
5849                         {
5850                                 // two-pass lit texture with 2x rgbscale
5851                                 // first the lightmap pass
5852                                 memset(&m, 0, sizeof(m));
5853                                 m.tex[0] = R_GetTexture(r_texture_white);
5854                                 m.pointer_texcoord[0] = rsurface.modeltexcoordlightmap2f;
5855                                 m.pointer_texcoord_bufferobject[0] = rsurface.modeltexcoordlightmap2f_bufferobject;
5856                                 m.pointer_texcoord_bufferoffset[0] = rsurface.modeltexcoordlightmap2f_bufferoffset;
5857                                 R_Mesh_TextureState(&m);
5858                                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
5859                                         RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
5860                                 else if (rsurface.uselightmaptexture)
5861                                         RSurf_DrawBatch_GL11_Lightmap(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
5862                                 else
5863                                         RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
5864                                 GL_LockArrays(0, 0);
5865                                 // then apply the texture to it
5866                                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
5867                                 memset(&m, 0, sizeof(m));
5868                                 m.tex[0] = R_GetTexture(layer->texture);
5869                                 m.texmatrix[0] = layer->texmatrix;
5870                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5871                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5872                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5873                                 R_Mesh_TextureState(&m);
5874                                 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);
5875                         }
5876                         else
5877                         {
5878                                 // single pass vertex-lighting-only texture with 1x rgbscale and transparency support
5879                                 memset(&m, 0, sizeof(m));
5880                                 m.tex[0] = R_GetTexture(layer->texture);
5881                                 m.texmatrix[0] = layer->texmatrix;
5882                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5883                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5884                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5885                                 R_Mesh_TextureState(&m);
5886                                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
5887                                         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);
5888                                 else
5889                                         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);
5890                         }
5891                         break;
5892                 case TEXTURELAYERTYPE_TEXTURE:
5893                         // singletexture unlit texture with transparency support
5894                         memset(&m, 0, sizeof(m));
5895                         m.tex[0] = R_GetTexture(layer->texture);
5896                         m.texmatrix[0] = layer->texmatrix;
5897                         m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5898                         m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5899                         m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5900                         R_Mesh_TextureState(&m);
5901                         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);
5902                         break;
5903                 case TEXTURELAYERTYPE_FOG:
5904                         // singletexture fogging
5905                         R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
5906                         if (layer->texture)
5907                         {
5908                                 memset(&m, 0, sizeof(m));
5909                                 m.tex[0] = R_GetTexture(layer->texture);
5910                                 m.texmatrix[0] = layer->texmatrix;
5911                                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
5912                                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
5913                                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
5914                                 R_Mesh_TextureState(&m);
5915                         }
5916                         else
5917                                 R_Mesh_ResetTextureState();
5918                         // generate a color array for the fog pass
5919                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
5920                         {
5921                                 int i;
5922                                 float f, *v, *c;
5923                                 const msurface_t *surface = texturesurfacelist[texturesurfaceindex];
5924                                 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)
5925                                 {
5926                                         f = 1 - FogPoint_Model(v);
5927                                         c[0] = layer->color[0];
5928                                         c[1] = layer->color[1];
5929                                         c[2] = layer->color[2];
5930                                         c[3] = f * layer->color[3];
5931                                 }
5932                         }
5933                         RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5934                         break;
5935                 default:
5936                         Con_Printf("R_DrawTextureSurfaceList: unknown layer type %i\n", layer->type);
5937                 }
5938                 GL_LockArrays(0, 0);
5939         }
5940         CHECKGLERROR
5941         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
5942         {
5943                 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
5944                 GL_AlphaTest(false);
5945         }
5946 }
5947
5948 static void R_DrawTextureSurfaceList(int texturenumsurfaces, msurface_t **texturesurfacelist, qboolean writedepth, qboolean depthonly)
5949 {
5950         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_NODRAW)
5951                 return;
5952         rsurface.rtlight = NULL;
5953         CHECKGLERROR
5954         if (depthonly)
5955         {
5956                 if ((rsurface.texture->currentmaterialflags & (MATERIALFLAG_NODEPTHTEST | MATERIALFLAG_BLENDED | MATERIALFLAG_ALPHATEST)))
5957                         return;
5958                 if (r_waterstate.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION)))
5959                         return;
5960                 if (rsurface.mode != RSURFMODE_MULTIPASS)
5961                         rsurface.mode = RSURFMODE_MULTIPASS;
5962                 if (r_depthfirst.integer == 3)
5963                 {
5964                         int i = (int)(texturesurfacelist[0] - rsurface.modelsurfaces);
5965                         if (!r_refdef.view.showdebug)
5966                                 GL_Color(0, 0, 0, 1);
5967                         else
5968                                 GL_Color(((i >> 6) & 7) / 7.0f, ((i >> 3) & 7) / 7.0f, (i & 7) / 7.0f,1);
5969                 }
5970                 else
5971                 {
5972                         GL_ColorMask(0,0,0,0);
5973                         GL_Color(1,1,1,1);
5974                 }
5975                 RSurf_SetupDepthAndCulling();
5976                 GL_DepthTest(true);
5977                 GL_BlendFunc(GL_ONE, GL_ZERO);
5978                 GL_DepthMask(true);
5979                 GL_AlphaTest(false);
5980                 R_Mesh_ColorPointer(NULL, 0, 0);
5981                 R_Mesh_ResetTextureState();
5982                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
5983                 RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5984                 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
5985         }
5986         else if (r_depthfirst.integer == 3)
5987                 return;
5988         else if (!r_refdef.view.showdebug && (r_showsurfaces.integer || gl_lightmaps.integer))
5989         {
5990                 GL_Color(0, 0, 0, 1);
5991                 RSurf_DrawBatch_Simple(texturenumsurfaces, texturesurfacelist);
5992         }
5993         else if (r_showsurfaces.integer)
5994         {
5995                 if (rsurface.mode != RSURFMODE_MULTIPASS)
5996                         rsurface.mode = RSURFMODE_MULTIPASS;
5997                 RSurf_SetupDepthAndCulling();
5998                 GL_DepthTest(true);
5999                 GL_BlendFunc(GL_ONE, GL_ZERO);
6000                 GL_DepthMask(writedepth);
6001                 GL_Color(1,1,1,1);
6002                 GL_AlphaTest(false);
6003                 R_Mesh_ColorPointer(NULL, 0, 0);
6004                 R_Mesh_ResetTextureState();
6005                 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
6006                 R_DrawTextureSurfaceList_ShowSurfaces(texturenumsurfaces, texturesurfacelist);
6007         }
6008         else if (gl_lightmaps.integer)
6009         {
6010                 rmeshstate_t m;
6011                 if (rsurface.mode != RSURFMODE_MULTIPASS)
6012                         rsurface.mode = RSURFMODE_MULTIPASS;
6013                 GL_DepthRange(0, (rsurface.texture->currentmaterialflags & MATERIALFLAG_SHORTDEPTHRANGE) ? 0.0625 : 1);
6014                 GL_DepthTest(true);
6015                 GL_CullFace((rsurface.texture->currentmaterialflags & MATERIALFLAG_NOCULLFACE) ? GL_NONE : r_refdef.view.cullface_back);
6016                 GL_BlendFunc(GL_ONE, GL_ZERO);
6017                 GL_DepthMask(writedepth);
6018                 GL_Color(1,1,1,1);
6019                 GL_AlphaTest(false);
6020                 R_Mesh_ColorPointer(NULL, 0, 0);
6021                 memset(&m, 0, sizeof(m));
6022                 m.tex[0] = R_GetTexture(r_texture_white);
6023                 m.pointer_texcoord[0] = rsurface.modeltexcoordlightmap2f;
6024                 m.pointer_texcoord_bufferobject[0] = rsurface.modeltexcoordlightmap2f_bufferobject;
6025                 m.pointer_texcoord_bufferoffset[0] = rsurface.modeltexcoordlightmap2f_bufferoffset;
6026                 R_Mesh_TextureState(&m);
6027                 RSurf_PrepareVerticesForBatch(rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT, false, texturenumsurfaces, texturesurfacelist);
6028                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
6029                         RSurf_DrawBatch_GL11_VertexShade(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
6030                 else if (rsurface.uselightmaptexture)
6031                         RSurf_DrawBatch_GL11_Lightmap(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
6032                 else
6033                         RSurf_DrawBatch_GL11_VertexColor(texturenumsurfaces, texturesurfacelist, 1, 1, 1, 1, false, false);
6034         }
6035         else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_SKY)
6036                 R_DrawTextureSurfaceList_Sky(texturenumsurfaces, texturesurfacelist);
6037         else if (rsurface.texture->currentnumlayers)
6038         {
6039                 // write depth for anything we skipped on the depth-only pass earlier
6040                 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
6041                         writedepth = true;
6042                 RSurf_SetupDepthAndCulling();
6043                 GL_BlendFunc(rsurface.texture->currentlayers[0].blendfunc1, rsurface.texture->currentlayers[0].blendfunc2);
6044                 GL_DepthMask(writedepth && !(rsurface.texture->currentmaterialflags & MATERIALFLAG_BLENDED));
6045                 GL_AlphaTest((rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST) != 0);
6046                 if (r_glsl.integer && gl_support_fragment_shader)
6047                         R_DrawTextureSurfaceList_GL20(texturenumsurfaces, texturesurfacelist);
6048                 else if (gl_combine.integer && r_textureunits.integer >= 2)
6049                         R_DrawTextureSurfaceList_GL13(texturenumsurfaces, texturesurfacelist);
6050                 else
6051                         R_DrawTextureSurfaceList_GL11(texturenumsurfaces, texturesurfacelist);
6052         }
6053         CHECKGLERROR
6054         GL_LockArrays(0, 0);
6055 }
6056
6057 static void R_DrawSurface_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
6058 {
6059         int i, j;
6060         int texturenumsurfaces, endsurface;
6061         texture_t *texture;
6062         msurface_t *surface;
6063         msurface_t *texturesurfacelist[1024];
6064
6065         // if the model is static it doesn't matter what value we give for
6066         // wantnormals and wanttangents, so this logic uses only rules applicable
6067         // to a model, knowing that they are meaningless otherwise
6068         if (ent == r_refdef.scene.worldentity)
6069                 RSurf_ActiveWorldEntity();
6070         else if ((ent->effects & EF_FULLBRIGHT) || r_showsurfaces.integer || VectorLength2(ent->modellight_diffuse) < (1.0f / 256.0f))
6071                 RSurf_ActiveModelEntity(ent, false, false);
6072         else
6073                 RSurf_ActiveModelEntity(ent, true, r_glsl.integer && gl_support_fragment_shader);
6074
6075         for (i = 0;i < numsurfaces;i = j)
6076         {
6077                 j = i + 1;
6078                 surface = rsurface.modelsurfaces + surfacelist[i];
6079                 texture = surface->texture;
6080                 R_UpdateTextureInfo(ent, texture);
6081                 rsurface.texture = texture->currentframe;
6082                 rsurface.uselightmaptexture = surface->lightmaptexture != NULL;
6083                 // scan ahead until we find a different texture
6084                 endsurface = min(i + 1024, numsurfaces);
6085                 texturenumsurfaces = 0;
6086                 texturesurfacelist[texturenumsurfaces++] = surface;
6087                 for (;j < endsurface;j++)
6088                 {
6089                         surface = rsurface.modelsurfaces + surfacelist[j];
6090                         if (texture != surface->texture || rsurface.uselightmaptexture != (surface->lightmaptexture != NULL))
6091                                 break;
6092                         texturesurfacelist[texturenumsurfaces++] = surface;
6093                 }
6094                 // render the range of surfaces
6095                 R_DrawTextureSurfaceList(texturenumsurfaces, texturesurfacelist, true, false);
6096         }
6097
6098         RSurf_CleanUp();
6099 }
6100
6101 void R_QueueSurfaceList(entity_render_t *ent, int numsurfaces, msurface_t **surfacelist, int flagsmask, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes)
6102 {
6103         int i, j;
6104         vec3_t tempcenter, center;
6105         texture_t *texture;
6106         // if we're rendering water textures (extra scene renders), use a separate loop to avoid burdening the main one
6107         if (addwaterplanes)
6108         {
6109                 for (i = 0;i < numsurfaces;i++)
6110                         if (surfacelist[i]->texture->currentframe->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION))
6111                                 R_Water_AddWaterPlane(surfacelist[i]);
6112                 return;
6113         }
6114         // break the surface list down into batches by texture and use of lightmapping
6115         for (i = 0;i < numsurfaces;i = j)
6116         {
6117                 j = i + 1;
6118                 // texture is the base texture pointer, rsurface.texture is the
6119                 // current frame/skin the texture is directing us to use (for example
6120                 // if a model has 2 skins and it is on skin 1, then skin 0 tells us to
6121                 // use skin 1 instead)
6122                 texture = surfacelist[i]->texture;
6123                 rsurface.texture = texture->currentframe;
6124                 rsurface.uselightmaptexture = surfacelist[i]->lightmaptexture != NULL;
6125                 if (!(rsurface.texture->currentmaterialflags & flagsmask))
6126                 {
6127                         // if this texture is not the kind we want, skip ahead to the next one
6128                         for (;j < numsurfaces && texture == surfacelist[j]->texture;j++)
6129                                 ;
6130                         continue;
6131                 }
6132                 if (rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED)
6133                 {
6134                         // transparent surfaces get pushed off into the transparent queue
6135                         const msurface_t *surface = surfacelist[i];
6136                         if (depthonly)
6137                                 continue;
6138                         tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
6139                         tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
6140                         tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
6141                         Matrix4x4_Transform(&rsurface.matrix, tempcenter, center);
6142                         R_MeshQueue_AddTransparent(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST ? r_refdef.view.origin : center, R_DrawSurface_TransparentCallback, ent, surface - rsurface.modelsurfaces, rsurface.rtlight);
6143                 }
6144                 else
6145                 {
6146                         // simply scan ahead until we find a different texture or lightmap state
6147                         for (;j < numsurfaces && texture == surfacelist[j]->texture && rsurface.uselightmaptexture == (surfacelist[j]->lightmaptexture != NULL);j++)
6148                                 ;
6149                         // render the range of surfaces
6150                         R_DrawTextureSurfaceList(j - i, surfacelist + i, writedepth, depthonly);
6151                 }
6152         }
6153 }
6154
6155 float locboxvertex3f[6*4*3] =
6156 {
6157         1,0,1, 1,0,0, 1,1,0, 1,1,1,
6158         0,1,1, 0,1,0, 0,0,0, 0,0,1,
6159         1,1,1, 1,1,0, 0,1,0, 0,1,1,
6160         0,0,1, 0,0,0, 1,0,0, 1,0,1,
6161         0,0,1, 1,0,1, 1,1,1, 0,1,1,
6162         1,0,0, 0,0,0, 0,1,0, 1,1,0
6163 };
6164
6165 int locboxelement3i[6*2*3] =
6166 {
6167          0, 1, 2, 0, 2, 3,
6168          4, 5, 6, 4, 6, 7,
6169          8, 9,10, 8,10,11,
6170         12,13,14, 12,14,15,
6171         16,17,18, 16,18,19,
6172         20,21,22, 20,22,23
6173 };
6174
6175 void R_DrawLoc_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
6176 {
6177         int i, j;
6178         cl_locnode_t *loc = (cl_locnode_t *)ent;
6179         vec3_t mins, size;
6180         float vertex3f[6*4*3];
6181         CHECKGLERROR
6182         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6183         GL_DepthMask(false);
6184         GL_DepthRange(0, 1);
6185         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
6186         GL_DepthTest(true);
6187         GL_CullFace(GL_NONE);
6188         R_Mesh_Matrix(&identitymatrix);
6189
6190         R_Mesh_VertexPointer(vertex3f, 0, 0);
6191         R_Mesh_ColorPointer(NULL, 0, 0);
6192         R_Mesh_ResetTextureState();
6193
6194         i = surfacelist[0];
6195         GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_refdef.view.colorscale,
6196                          ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_refdef.view.colorscale,
6197                          ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_refdef.view.colorscale,
6198                         surfacelist[0] < 0 ? 0.5f : 0.125f);
6199
6200         if (VectorCompare(loc->mins, loc->maxs))
6201         {
6202                 VectorSet(size, 2, 2, 2);
6203                 VectorMA(loc->mins, -0.5f, size, mins);
6204         }
6205         else
6206         {
6207                 VectorCopy(loc->mins, mins);
6208                 VectorSubtract(loc->maxs, loc->mins, size);
6209         }
6210
6211         for (i = 0;i < 6*4*3;)
6212                 for (j = 0;j < 3;j++, i++)
6213                         vertex3f[i] = mins[j] + size[j] * locboxvertex3f[i];
6214
6215         R_Mesh_Draw(0, 6*4, 6*2, locboxelement3i, 0, 0);
6216 }
6217
6218 void R_DrawLocs(void)
6219 {
6220         int index;
6221         cl_locnode_t *loc, *nearestloc;
6222         vec3_t center;
6223         nearestloc = CL_Locs_FindNearest(cl.movement_origin);
6224         for (loc = cl.locnodes, index = 0;loc;loc = loc->next, index++)
6225         {
6226                 VectorLerp(loc->mins, 0.5f, loc->maxs, center);
6227                 R_MeshQueue_AddTransparent(center, R_DrawLoc_Callback, (entity_render_t *)loc, loc == nearestloc ? -1 : index, NULL);
6228         }
6229 }
6230
6231 void R_DrawDebugModel(entity_render_t *ent)
6232 {
6233         int i, j, k, l, flagsmask;
6234         const int *elements;
6235         q3mbrush_t *brush;
6236         msurface_t *surface;
6237         model_t *model = ent->model;
6238         vec3_t v;
6239
6240         flagsmask = MATERIALFLAG_SKY | MATERIALFLAG_WATER | MATERIALFLAG_WALL;
6241
6242         R_Mesh_ColorPointer(NULL, 0, 0);
6243         R_Mesh_ResetTextureState();
6244         GL_DepthRange(0, 1);
6245         GL_DepthTest(!r_showdisabledepthtest.integer);
6246         GL_DepthMask(false);
6247         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6248
6249         if (r_showcollisionbrushes.value > 0 && model->brush.num_brushes)
6250         {
6251                 GL_PolygonOffset(r_refdef.polygonfactor + r_showcollisionbrushes_polygonfactor.value, r_refdef.polygonoffset + r_showcollisionbrushes_polygonoffset.value);
6252                 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
6253                 {
6254                         if (brush->colbrushf && brush->colbrushf->numtriangles)
6255                         {
6256                                 R_Mesh_VertexPointer(brush->colbrushf->points->v, 0, 0);
6257                                 GL_Color((i & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, ((i >> 5) & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, ((i >> 10) & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, r_showcollisionbrushes.value);
6258                                 R_Mesh_Draw(0, brush->colbrushf->numpoints, brush->colbrushf->numtriangles, brush->colbrushf->elements, 0, 0);
6259                         }
6260                 }
6261                 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
6262                 {
6263                         if (surface->num_collisiontriangles)
6264                         {
6265                                 R_Mesh_VertexPointer(surface->data_collisionvertex3f, 0, 0);
6266                                 GL_Color((i & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, ((i >> 5) & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, ((i >> 10) & 31) * (1.0f / 32.0f) * r_refdef.view.colorscale, r_showcollisionbrushes.value);
6267                                 R_Mesh_Draw(0, surface->num_collisionvertices, surface->num_collisiontriangles, surface->data_collisionelement3i, 0, 0);
6268                         }
6269                 }
6270         }
6271
6272         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
6273
6274         if (r_showtris.integer || r_shownormals.integer)
6275         {
6276                 if (r_showdisabledepthtest.integer)
6277                 {
6278                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
6279                         GL_DepthMask(false);
6280                 }
6281                 else
6282                 {
6283                         GL_BlendFunc(GL_ONE, GL_ZERO);
6284                         GL_DepthMask(true);
6285                 }
6286                 for (i = 0, j = model->firstmodelsurface, surface = model->data_surfaces + j;i < model->nummodelsurfaces;i++, j++, surface++)
6287                 {
6288                         if (ent == r_refdef.scene.worldentity && !r_refdef.viewcache.world_surfacevisible[j])
6289                                 continue;
6290                         rsurface.texture = surface->texture->currentframe;
6291                         if ((rsurface.texture->currentmaterialflags & flagsmask) && surface->num_triangles)
6292                         {
6293                                 RSurf_PrepareVerticesForBatch(true, true, 1, &surface);
6294                                 if (r_showtris.value > 0)
6295                                 {
6296                                         if (!rsurface.texture->currentlayers->depthmask)
6297                                                 GL_Color(r_refdef.view.colorscale, 0, 0, r_showtris.value);
6298                                         else if (ent == r_refdef.scene.worldentity)
6299                                                 GL_Color(r_refdef.view.colorscale, r_refdef.view.colorscale, r_refdef.view.colorscale, r_showtris.value);
6300                                         else
6301                                                 GL_Color(0, r_refdef.view.colorscale, 0, r_showtris.value);
6302                                         elements = (ent->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle);
6303                                         CHECKGLERROR
6304                                         qglBegin(GL_LINES);
6305                                         for (k = 0;k < surface->num_triangles;k++, elements += 3)
6306                                         {
6307 #define GLVERTEXELEMENT(n) qglVertex3f(rsurface.vertex3f[elements[n]*3+0], rsurface.vertex3f[elements[n]*3+1], rsurface.vertex3f[elements[n]*3+2])
6308                                                 GLVERTEXELEMENT(0);GLVERTEXELEMENT(1);
6309                                                 GLVERTEXELEMENT(1);GLVERTEXELEMENT(2);
6310                                                 GLVERTEXELEMENT(2);GLVERTEXELEMENT(0);
6311                                         }
6312                                         qglEnd();
6313                                         CHECKGLERROR
6314                                 }
6315                                 if (r_shownormals.value > 0)
6316                                 {
6317                                         qglBegin(GL_LINES);
6318                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6319                                         {
6320                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6321                                                 GL_Color(r_refdef.view.colorscale, 0, 0, 1);
6322                                                 qglVertex3f(v[0], v[1], v[2]);
6323                                                 VectorMA(v, r_shownormals.value, rsurface.svector3f + l * 3, v);
6324                                                 GL_Color(r_refdef.view.colorscale, 1, 1, 1);
6325                                                 qglVertex3f(v[0], v[1], v[2]);
6326                                         }
6327                                         qglEnd();
6328                                         CHECKGLERROR
6329                                         qglBegin(GL_LINES);
6330                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6331                                         {
6332                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6333                                                 GL_Color(0, r_refdef.view.colorscale, 0, 1);
6334                                                 qglVertex3f(v[0], v[1], v[2]);
6335                                                 VectorMA(v, r_shownormals.value, rsurface.tvector3f + l * 3, v);
6336                                                 GL_Color(r_refdef.view.colorscale, 1, 1, 1);
6337                                                 qglVertex3f(v[0], v[1], v[2]);
6338                                         }
6339                                         qglEnd();
6340                                         CHECKGLERROR
6341                                         qglBegin(GL_LINES);
6342                                         for (k = 0, l = surface->num_firstvertex;k < surface->num_vertices;k++, l++)
6343                                         {
6344                                                 VectorCopy(rsurface.vertex3f + l * 3, v);
6345                                                 GL_Color(0, 0, r_refdef.view.colorscale, 1);
6346                                                 qglVertex3f(v[0], v[1], v[2]);
6347                                                 VectorMA(v, r_shownormals.value, rsurface.normal3f + l * 3, v);
6348                                                 GL_Color(r_refdef.view.colorscale, 1, 1, 1);
6349                                                 qglVertex3f(v[0], v[1], v[2]);
6350                                         }
6351                                         qglEnd();
6352                                         CHECKGLERROR
6353                                 }
6354                         }
6355                 }
6356                 rsurface.texture = NULL;
6357         }
6358 }
6359
6360 extern void R_BuildLightMap(const entity_render_t *ent, msurface_t *surface);
6361 void R_DrawWorldSurfaces(qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes, qboolean debug)
6362 {
6363         int i, j, endj, f, flagsmask;
6364         msurface_t *surface;
6365         texture_t *t;
6366         model_t *model = r_refdef.scene.worldmodel;
6367         const int maxsurfacelist = 1024;
6368         int numsurfacelist = 0;
6369         msurface_t *surfacelist[1024];
6370         if (model == NULL)
6371                 return;
6372
6373         RSurf_ActiveWorldEntity();
6374
6375         // update light styles on this submodel
6376         if (!skysurfaces && !depthonly && !addwaterplanes && model->brushq1.num_lightstyles && r_refdef.lightmapintensity > 0)
6377         {
6378                 model_brush_lightstyleinfo_t *style;
6379                 for (i = 0, style = model->brushq1.data_lightstyleinfo;i < model->brushq1.num_lightstyles;i++, style++)
6380                 {
6381                         if (style->value != r_refdef.scene.lightstylevalue[style->style])
6382                         {
6383                                 msurface_t *surfaces = model->data_surfaces;
6384                                 int *list = style->surfacelist;
6385                                 style->value = r_refdef.scene.lightstylevalue[style->style];
6386                                 for (j = 0;j < style->numsurfaces;j++)
6387                                         surfaces[list[j]].cached_dlight = true;
6388                         }
6389                 }
6390         }
6391
6392         R_UpdateAllTextureInfo(r_refdef.scene.worldentity);
6393         flagsmask = addwaterplanes ? (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) : (skysurfaces ? MATERIALFLAG_SKY : (MATERIALFLAG_WATER | MATERIALFLAG_WALL));
6394
6395         if (debug)
6396         {
6397                 R_DrawDebugModel(r_refdef.scene.worldentity);
6398                 return;
6399         }
6400
6401         f = 0;
6402         t = NULL;
6403         rsurface.uselightmaptexture = false;
6404         rsurface.texture = NULL;
6405         numsurfacelist = 0;
6406         j = model->firstmodelsurface;
6407         endj = j + model->nummodelsurfaces;
6408         while (j < endj)
6409         {
6410                 // quickly skip over non-visible surfaces
6411                 for (;j < endj && !r_refdef.viewcache.world_surfacevisible[j];j++)
6412                         ;
6413                 // quickly iterate over visible surfaces
6414                 for (;j < endj && r_refdef.viewcache.world_surfacevisible[j];j++)
6415                 {
6416                         // process this surface
6417                         surface = model->data_surfaces + j;
6418                         // if this surface fits the criteria, add it to the list
6419                         if (surface->num_triangles)
6420                         {
6421                                 // if lightmap parameters changed, rebuild lightmap texture
6422                                 if (surface->cached_dlight)
6423                                         R_BuildLightMap(r_refdef.scene.worldentity, surface);
6424                                 // add face to draw list
6425                                 surfacelist[numsurfacelist++] = surface;
6426                                 r_refdef.stats.world_triangles += surface->num_triangles;
6427                                 if (numsurfacelist >= maxsurfacelist)
6428                                 {
6429                                         r_refdef.stats.world_surfaces += numsurfacelist;
6430                                         R_QueueSurfaceList(r_refdef.scene.worldentity, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6431                                         numsurfacelist = 0;
6432                                 }
6433                         }
6434                 }
6435         }
6436         r_refdef.stats.world_surfaces += numsurfacelist;
6437         if (numsurfacelist)
6438                 R_QueueSurfaceList(r_refdef.scene.worldentity, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6439         RSurf_CleanUp();
6440 }
6441
6442 void R_DrawModelSurfaces(entity_render_t *ent, qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean addwaterplanes, qboolean debug)
6443 {
6444         int i, j, f, flagsmask;
6445         msurface_t *surface, *endsurface;
6446         texture_t *t;
6447         model_t *model = ent->model;
6448         const int maxsurfacelist = 1024;
6449         int numsurfacelist = 0;
6450         msurface_t *surfacelist[1024];
6451         if (model == NULL)
6452                 return;
6453
6454         // if the model is static it doesn't matter what value we give for
6455         // wantnormals and wanttangents, so this logic uses only rules applicable
6456         // to a model, knowing that they are meaningless otherwise
6457         if (ent == r_refdef.scene.worldentity)
6458                 RSurf_ActiveWorldEntity();
6459         else if ((ent->effects & EF_FULLBRIGHT) || r_showsurfaces.integer || VectorLength2(ent->modellight_diffuse) < (1.0f / 256.0f))
6460                 RSurf_ActiveModelEntity(ent, false, false);
6461         else
6462                 RSurf_ActiveModelEntity(ent, true, r_glsl.integer && gl_support_fragment_shader && !depthonly);
6463
6464         // update light styles
6465         if (!skysurfaces && !depthonly && !addwaterplanes && model->brushq1.num_lightstyles && r_refdef.lightmapintensity > 0)
6466         {
6467                 model_brush_lightstyleinfo_t *style;
6468                 for (i = 0, style = model->brushq1.data_lightstyleinfo;i < model->brushq1.num_lightstyles;i++, style++)
6469                 {
6470                         if (style->value != r_refdef.scene.lightstylevalue[style->style])
6471                         {
6472                                 msurface_t *surfaces = model->data_surfaces;
6473                                 int *list = style->surfacelist;
6474                                 style->value = r_refdef.scene.lightstylevalue[style->style];
6475                                 for (j = 0;j < style->numsurfaces;j++)
6476                                         surfaces[list[j]].cached_dlight = true;
6477                         }
6478                 }
6479         }
6480
6481         R_UpdateAllTextureInfo(ent);
6482         flagsmask = addwaterplanes ? (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION) : (skysurfaces ? MATERIALFLAG_SKY : (MATERIALFLAG_WATER | MATERIALFLAG_WALL));
6483
6484         if (debug)
6485         {
6486                 R_DrawDebugModel(ent);
6487                 return;
6488         }
6489
6490         f = 0;
6491         t = NULL;
6492         rsurface.uselightmaptexture = false;
6493         rsurface.texture = NULL;
6494         numsurfacelist = 0;
6495         surface = model->data_surfaces + model->firstmodelsurface;
6496         endsurface = surface + model->nummodelsurfaces;
6497         for (;surface < endsurface;surface++)
6498         {
6499                 // if this surface fits the criteria, add it to the list
6500                 if (surface->num_triangles)
6501                 {
6502                         // if lightmap parameters changed, rebuild lightmap texture
6503                         if (surface->cached_dlight)
6504                                 R_BuildLightMap(ent, surface);
6505                         // add face to draw list
6506                         surfacelist[numsurfacelist++] = surface;
6507                         r_refdef.stats.entities_triangles += surface->num_triangles;
6508                         if (numsurfacelist >= maxsurfacelist)
6509                         {
6510                                 r_refdef.stats.entities_surfaces += numsurfacelist;
6511                                 R_QueueSurfaceList(ent, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6512                                 numsurfacelist = 0;
6513                         }
6514                 }
6515         }
6516         r_refdef.stats.entities_surfaces += numsurfacelist;
6517         if (numsurfacelist)
6518                 R_QueueSurfaceList(ent, numsurfacelist, surfacelist, flagsmask, writedepth, depthonly, addwaterplanes);
6519         RSurf_CleanUp();
6520 }