gl_rsurf.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_surf.c: surface-related refresh code
  21
  22 #include "quakedef.h"
  23 #include "r_shadow.h"
  24
  25 #define MAX_LIGHTMAP_SIZE 256
  26
  27 static unsigned int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
  28 static float floatblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
  29
  30 static qbyte templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
  31
  32 cvar_t r_ambient = {0, "r_ambient", "0"};
  33 cvar_t r_vertexsurfaces = {0, "r_vertexsurfaces", "0"};
  34 cvar_t r_dlightmap = {CVAR_SAVE, "r_dlightmap", "1"};
  35 cvar_t r_drawportals = {0, "r_drawportals", "0"};
  36 cvar_t r_testvis = {0, "r_testvis", "0"};
  37 cvar_t r_floatbuildlightmap = {0, "r_floatbuildlightmap", "0"};
  38 cvar_t r_detailtextures = {CVAR_SAVE, "r_detailtextures", "1"};
  39 cvar_t r_surfaceworldnode = {0, "r_surfaceworldnode", "1"};
  40 cvar_t r_drawcollisionbrushes_polygonoffset = {0, "r_drawcollisionbrushes_polygonoffset", "-4"};
  41
  42 static int dlightdivtable[32768];
  43
  44 static int R_IntAddDynamicLights (const matrix4x4_t *matrix, msurface_t *surf)
  45 {
  46         int sdtable[256], lnum, td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, red, green, blue, lit, dist2, impacts, impactt, subtract, k;
  47         unsigned int *bl;
  48         float dist, impact[3], local[3];
  49
  50         lit = false;
  51
  52         smax = (surf->extents[0] >> 4) + 1;
  53         tmax = (surf->extents[1] >> 4) + 1;
  54         smax3 = smax * 3;
  55
  56         for (lnum = 0; lnum < r_numdlights; lnum++)
  57         {
  58                 if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
  59                         continue;                                       // not lit by this light
  60
  61                 Matrix4x4_Transform(matrix, r_dlight[lnum].origin, local);
  62                 dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
  63
  64                 // for comparisons to minimum acceptable light
  65                 // compensate for LIGHTOFFSET
  66                 maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
  67
  68                 dist2 = dist * dist;
  69                 dist2 += LIGHTOFFSET;
  70                 if (dist2 >= maxdist)
  71                         continue;
  72
  73                 if (surf->plane->type < 3)
  74                 {
  75                         VectorCopy(local, impact);
  76                         impact[surf->plane->type] -= dist;
  77                 }
  78                 else
  79                 {
  80                         impact[0] = local[0] - surf->plane->normal[0] * dist;
  81                         impact[1] = local[1] - surf->plane->normal[1] * dist;
  82                         impact[2] = local[2] - surf->plane->normal[2] * dist;
  83                 }
  84
  85                 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
  86                 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
  87
  88                 s = bound(0, impacts, smax * 16) - impacts;
  89                 t = bound(0, impactt, tmax * 16) - impactt;
  90                 i = s * s + t * t + dist2;
  91                 if (i > maxdist)
  92                         continue;
  93
  94                 // reduce calculations
  95                 for (s = 0, i = impacts; s < smax; s++, i -= 16)
  96                         sdtable[s] = i * i + dist2;
  97
  98                 maxdist3 = maxdist - dist2;
  99
 100                 // convert to 8.8 blocklights format
 101                 red = r_dlight[lnum].light[0] * (1.0f / 128.0f);
 102                 green = r_dlight[lnum].light[1] * (1.0f / 128.0f);
 103                 blue = r_dlight[lnum].light[2] * (1.0f / 128.0f);
 104                 subtract = (int) (r_dlight[lnum].subtract * 4194304.0f);
 105                 bl = intblocklights;
 106
 107                 i = impactt;
 108                 for (t = 0;t < tmax;t++, i -= 16)
 109                 {
 110                         td = i * i;
 111                         // make sure some part of it is visible on this line
 112                         if (td < maxdist3)
 113                         {
 114                                 maxdist2 = maxdist - td;
 115                                 for (s = 0;s < smax;s++)
 116                                 {
 117                                         if (sdtable[s] < maxdist2)
 118                                         {
 119                                                 k = dlightdivtable[(sdtable[s] + td) >> 7] - subtract;
 120                                                 if (k > 0)
 121                                                 {
 122                                                         bl[0] += (red   * k);
 123                                                         bl[1] += (green * k);
 124                                                         bl[2] += (blue  * k);
 125                                                         lit = true;
 126                                                 }
 127                                         }
 128                                         bl += 3;
 129                                 }
 130                         }
 131                         else // skip line
 132                                 bl += smax3;
 133                 }
 134         }
 135         return lit;
 136 }
 137
 138 static int R_FloatAddDynamicLights (const matrix4x4_t *matrix, msurface_t *surf)
 139 {
 140         int lnum, s, t, smax, tmax, smax3, lit, impacts, impactt;
 141         float sdtable[256], *bl, k, dist, dist2, maxdist, maxdist2, maxdist3, td1, td, red, green, blue, impact[3], local[3], subtract;
 142
 143         lit = false;
 144
 145         smax = (surf->extents[0] >> 4) + 1;
 146         tmax = (surf->extents[1] >> 4) + 1;
 147         smax3 = smax * 3;
 148
 149         for (lnum = 0; lnum < r_numdlights; lnum++)
 150         {
 151                 if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
 152                         continue;                                       // not lit by this light
 153
 154                 Matrix4x4_Transform(matrix, r_dlight[lnum].origin, local);
 155                 dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
 156
 157                 // for comparisons to minimum acceptable light
 158                 // compensate for LIGHTOFFSET
 159                 maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
 160
 161                 dist2 = dist * dist;
 162                 dist2 += LIGHTOFFSET;
 163                 if (dist2 >= maxdist)
 164                         continue;
 165
 166                 if (surf->plane->type < 3)
 167                 {
 168                         VectorCopy(local, impact);
 169                         impact[surf->plane->type] -= dist;
 170                 }
 171                 else
 172                 {
 173                         impact[0] = local[0] - surf->plane->normal[0] * dist;
 174                         impact[1] = local[1] - surf->plane->normal[1] * dist;
 175                         impact[2] = local[2] - surf->plane->normal[2] * dist;
 176                 }
 177
 178                 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
 179                 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
 180
 181                 td = bound(0, impacts, smax * 16) - impacts;
 182                 td1 = bound(0, impactt, tmax * 16) - impactt;
 183                 td = td * td + td1 * td1 + dist2;
 184                 if (td > maxdist)
 185                         continue;
 186
 187                 // reduce calculations
 188                 for (s = 0, td1 = impacts; s < smax; s++, td1 -= 16.0f)
 189                         sdtable[s] = td1 * td1 + dist2;
 190
 191                 maxdist3 = maxdist - dist2;
 192
 193                 // convert to 8.8 blocklights format
 194                 red = r_dlight[lnum].light[0];
 195                 green = r_dlight[lnum].light[1];
 196                 blue = r_dlight[lnum].light[2];
 197                 subtract = r_dlight[lnum].subtract * 32768.0f;
 198                 bl = floatblocklights;
 199
 200                 td1 = impactt;
 201                 for (t = 0;t < tmax;t++, td1 -= 16.0f)
 202                 {
 203                         td = td1 * td1;
 204                         // make sure some part of it is visible on this line
 205                         if (td < maxdist3)
 206                         {
 207                                 maxdist2 = maxdist - td;
 208                                 for (s = 0;s < smax;s++)
 209                                 {
 210                                         if (sdtable[s] < maxdist2)
 211                                         {
 212                                                 k = (32768.0f / (sdtable[s] + td)) - subtract;
 213                                                 bl[0] += red   * k;
 214                                                 bl[1] += green * k;
 215                                                 bl[2] += blue  * k;
 216                                                 lit = true;
 217                                         }
 218                                         bl += 3;
 219                                 }
 220                         }
 221                         else // skip line
 222                                 bl += smax3;
 223                 }
 224         }
 225         return lit;
 226 }
 227
 228 /*
 229 ===============
 230 R_BuildLightMap
 231
 232 Combine and scale multiple lightmaps into the 8.8 format in blocklights
 233 ===============
 234 */
 235 static void R_BuildLightMap (const entity_render_t *ent, msurface_t *surf)
 236 {
 237         if (!r_floatbuildlightmap.integer)
 238         {
 239                 int smax, tmax, i, j, size, size3, shift, maps, stride, l;
 240                 unsigned int *bl, scale;
 241                 qbyte *lightmap, *out, *stain;
 242
 243                 // update cached lighting info
 244                 surf->cached_dlight = 0;
 245
 246                 smax = (surf->extents[0]>>4)+1;
 247                 tmax = (surf->extents[1]>>4)+1;
 248                 size = smax*tmax;
 249                 size3 = size*3;
 250                 lightmap = surf->samples;
 251
 252         // set to full bright if no light data
 253                 bl = intblocklights;
 254                 if ((ent->effects & EF_FULLBRIGHT) || !ent->model->brushq1.lightdata)
 255                 {
 256                         for (i = 0;i < size3;i++)
 257                                 bl[i] = 255*256;
 258                 }
 259                 else
 260                 {
 261         // clear to no light
 262                         j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
 263                         if (j)
 264                         {
 265                                 for (i = 0;i < size3;i++)
 266                                         *bl++ = j;
 267                         }
 268                         else
 269                                 memset(bl, 0, size*3*sizeof(unsigned int));
 270
 271                         if (surf->dlightframe == r_framecount && r_dlightmap.integer)
 272                         {
 273                                 surf->cached_dlight = R_IntAddDynamicLights(&ent->inversematrix, surf);
 274                                 if (surf->cached_dlight)
 275                                         c_light_polys++;
 276                         }
 277
 278         // add all the lightmaps
 279                         if (lightmap)
 280                         {
 281                                 bl = intblocklights;
 282                                 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
 283                                         for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
 284                                                 bl[i] += lightmap[i] * scale;
 285                         }
 286                 }
 287
 288                 stain = surf->stainsamples;
 289                 bl = intblocklights;
 290                 out = templight;
 291                 // deal with lightmap brightness scale
 292                 shift = 7 + r_lightmapscalebit + 8;
 293                 if (ent->model->brushq1.lightmaprgba)
 294                 {
 295                         stride = (surf->lightmaptexturestride - smax) * 4;
 296                         for (i = 0;i < tmax;i++, out += stride)
 297                         {
 298                                 for (j = 0;j < smax;j++)
 299                                 {
 300                                         l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
 301                                         l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
 302                                         l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
 303                                         *out++ = 255;
 304                                 }
 305                         }
 306                 }
 307                 else
 308                 {
 309                         stride = (surf->lightmaptexturestride - smax) * 3;
 310                         for (i = 0;i < tmax;i++, out += stride)
 311                         {
 312                                 for (j = 0;j < smax;j++)
 313                                 {
 314                                         l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
 315                                         l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
 316                                         l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
 317                                 }
 318                         }
 319                 }
 320
 321                 R_UpdateTexture(surf->lightmaptexture, templight);
 322         }
 323         else
 324         {
 325                 int smax, tmax, i, j, size, size3, maps, stride, l;
 326                 float *bl, scale;
 327                 qbyte *lightmap, *out, *stain;
 328
 329                 // update cached lighting info
 330                 surf->cached_dlight = 0;
 331
 332                 smax = (surf->extents[0]>>4)+1;
 333                 tmax = (surf->extents[1]>>4)+1;
 334                 size = smax*tmax;
 335                 size3 = size*3;
 336                 lightmap = surf->samples;
 337
 338         // set to full bright if no light data
 339                 bl = floatblocklights;
 340                 if ((ent->effects & EF_FULLBRIGHT) || !ent->model->brushq1.lightdata)
 341                         j = 255*256;
 342                 else
 343                         j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
 344
 345                 // clear to no light
 346                 if (j)
 347                 {
 348                         for (i = 0;i < size3;i++)
 349                                 *bl++ = j;
 350                 }
 351                 else
 352                         memset(bl, 0, size*3*sizeof(float));
 353
 354                 if (surf->dlightframe == r_framecount && r_dlightmap.integer)
 355                 {
 356                         surf->cached_dlight = R_FloatAddDynamicLights(&ent->inversematrix, surf);
 357                         if (surf->cached_dlight)
 358                                 c_light_polys++;
 359                 }
 360
 361                 // add all the lightmaps
 362                 if (lightmap)
 363                 {
 364                         bl = floatblocklights;
 365                         for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
 366                                 for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
 367                                         bl[i] += lightmap[i] * scale;
 368                 }
 369
 370                 stain = surf->stainsamples;
 371                 bl = floatblocklights;
 372                 out = templight;
 373                 // deal with lightmap brightness scale
 374                 scale = 1.0f / (1 << (7 + r_lightmapscalebit + 8));
 375                 if (ent->model->brushq1.lightmaprgba)
 376                 {
 377                         stride = (surf->lightmaptexturestride - smax) * 4;
 378                         for (i = 0;i < tmax;i++, out += stride)
 379                         {
 380                                 for (j = 0;j < smax;j++)
 381                                 {
 382                                         l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
 383                                         l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
 384                                         l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
 385                                         *out++ = 255;
 386                                 }
 387                         }
 388                 }
 389                 else
 390                 {
 391                         stride = (surf->lightmaptexturestride - smax) * 3;
 392                         for (i = 0;i < tmax;i++, out += stride)
 393                         {
 394                                 for (j = 0;j < smax;j++)
 395                                 {
 396                                         l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
 397                                         l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
 398                                         l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
 399                                 }
 400                         }
 401                 }
 402
 403                 R_UpdateTexture(surf->lightmaptexture, templight);
 404         }
 405 }
 406
 407 void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
 408 {
 409         float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
 410         msurface_t *surf, *endsurf;
 411         int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
 412         qbyte *bl;
 413         vec3_t impact;
 414
 415         maxdist = radius * radius;
 416         invradius = 1.0f / radius;
 417
 418 loc0:
 419         if (node->contents < 0)
 420                 return;
 421         ndist = PlaneDiff(origin, node->plane);
 422         if (ndist > radius)
 423         {
 424                 node = node->children[0];
 425                 goto loc0;
 426         }
 427         if (ndist < -radius)
 428         {
 429                 node = node->children[1];
 430                 goto loc0;
 431         }
 432
 433         dist2 = ndist * ndist;
 434         maxdist3 = maxdist - dist2;
 435
 436         if (node->plane->type < 3)
 437         {
 438                 VectorCopy(origin, impact);
 439                 impact[node->plane->type] -= ndist;
 440         }
 441         else
 442         {
 443                 impact[0] = origin[0] - node->plane->normal[0] * ndist;
 444                 impact[1] = origin[1] - node->plane->normal[1] * ndist;
 445                 impact[2] = origin[2] - node->plane->normal[2] * ndist;
 446         }
 447
 448         for (surf = model->brushq1.surfaces + node->firstsurface, endsurf = surf + node->numsurfaces;surf < endsurf;surf++)
 449         {
 450                 if (surf->stainsamples)
 451                 {
 452                         smax = (surf->extents[0] >> 4) + 1;
 453                         tmax = (surf->extents[1] >> 4) + 1;
 454
 455                         impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
 456                         impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
 457
 458                         s = bound(0, impacts, smax * 16) - impacts;
 459                         t = bound(0, impactt, tmax * 16) - impactt;
 460                         i = s * s + t * t + dist2;
 461                         if (i > maxdist)
 462                                 continue;
 463
 464                         // reduce calculations
 465                         for (s = 0, i = impacts; s < smax; s++, i -= 16)
 466                                 sdtable[s] = i * i + dist2;
 467
 468                         bl = surf->stainsamples;
 469                         smax3 = smax * 3;
 470                         stained = false;
 471
 472                         i = impactt;
 473                         for (t = 0;t < tmax;t++, i -= 16)
 474                         {
 475                                 td = i * i;
 476                                 // make sure some part of it is visible on this line
 477                                 if (td < maxdist3)
 478                                 {
 479                                         maxdist2 = maxdist - td;
 480                                         for (s = 0;s < smax;s++)
 481                                         {
 482                                                 if (sdtable[s] < maxdist2)
 483                                                 {
 484                                                         ratio = lhrandom(0.0f, 1.0f);
 485                                                         a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
 486                                                         if (a >= (1.0f / 64.0f))
 487                                                         {
 488                                                                 if (a > 1)
 489                                                                         a = 1;
 490                                                                 bl[0] = (qbyte) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
 491                                                                 bl[1] = (qbyte) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
 492                                                                 bl[2] = (qbyte) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
 493                                                                 stained = true;
 494                                                         }
 495                                                 }
 496                                                 bl += 3;
 497                                         }
 498                                 }
 499                                 else // skip line
 500                                         bl += smax3;
 501                         }
 502                         // force lightmap upload
 503                         if (stained)
 504                                 surf->cached_dlight = true;
 505                 }
 506         }
 507
 508         if (node->children[0]->contents >= 0)
 509         {
 510                 if (node->children[1]->contents >= 0)
 511                 {
 512                         R_StainNode(node->children[0], model, origin, radius, fcolor);
 513                         node = node->children[1];
 514                         goto loc0;
 515                 }
 516                 else
 517                 {
 518                         node = node->children[0];
 519                         goto loc0;
 520                 }
 521         }
 522         else if (node->children[1]->contents >= 0)
 523         {
 524                 node = node->children[1];
 525                 goto loc0;
 526         }
 527 }
 528
 529 void R_Stain (const vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, int cr2, int cg2, int cb2, int ca2)
 530 {
 531         int n;
 532         float fcolor[8];
 533         entity_render_t *ent;
 534         model_t *model;
 535         vec3_t org;
 536         if (cl.worldmodel == NULL || !cl.worldmodel->brushq1.nodes)
 537                 return;
 538         fcolor[0] = cr1;
 539         fcolor[1] = cg1;
 540         fcolor[2] = cb1;
 541         fcolor[3] = ca1 * (1.0f / 64.0f);
 542         fcolor[4] = cr2 - cr1;
 543         fcolor[5] = cg2 - cg1;
 544         fcolor[6] = cb2 - cb1;
 545         fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
 546
 547         R_StainNode(cl.worldmodel->brushq1.nodes + cl.worldmodel->brushq1.hulls[0].firstclipnode, cl.worldmodel, origin, radius, fcolor);
 548
 549         // look for embedded bmodels
 550         for (n = 0;n < cl_num_brushmodel_entities;n++)
 551         {
 552                 ent = cl_brushmodel_entities[n];
 553                 model = ent->model;
 554                 if (model && model->name[0] == '*')
 555                 {
 556                         Mod_CheckLoaded(model);
 557                         if (model->brushq1.nodes)
 558                         {
 559                                 Matrix4x4_Transform(&ent->inversematrix, origin, org);
 560                                 R_StainNode(model->brushq1.nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
 561                         }
 562                 }
 563         }
 564 }
 565
 566
 567 /*
 568 =============================================================
 569
 570         BRUSH MODELS
 571
 572 =============================================================
 573 */
 574
 575 static void RSurf_AddLightmapToVertexColors_Color4f(const int *lightmapoffsets, float *c, int numverts, const qbyte *samples, int size3, const qbyte *styles)
 576 {
 577         int i;
 578         float scale;
 579         const qbyte *lm;
 580         if (styles[0] != 255)
 581         {
 582                 for (i = 0;i < numverts;i++, c += 4)
 583                 {
 584                         lm = samples + lightmapoffsets[i];
 585                         scale = d_lightstylevalue[styles[0]] * (1.0f / 32768.0f);
 586                         VectorMA(c, scale, lm, c);
 587                         if (styles[1] != 255)
 588                         {
 589                                 lm += size3;
 590                                 scale = d_lightstylevalue[styles[1]] * (1.0f / 32768.0f);
 591                                 VectorMA(c, scale, lm, c);
 592                                 if (styles[2] != 255)
 593                                 {
 594                                         lm += size3;
 595                                         scale = d_lightstylevalue[styles[2]] * (1.0f / 32768.0f);
 596                                         VectorMA(c, scale, lm, c);
 597                                         if (styles[3] != 255)
 598                                         {
 599                                                 lm += size3;
 600                                                 scale = d_lightstylevalue[styles[3]] * (1.0f / 32768.0f);
 601                                                 VectorMA(c, scale, lm, c);
 602                                         }
 603                                 }
 604                         }
 605                 }
 606         }
 607 }
 608
 609 static void RSurf_FogColors_Vertex3f_Color4f(const float *v, float *c, float colorscale, int numverts, const float *modelorg)
 610 {
 611         int i;
 612         float diff[3], f;
 613         if (fogenabled)
 614         {
 615                 for (i = 0;i < numverts;i++, v += 3, c += 4)
 616                 {
 617                         VectorSubtract(v, modelorg, diff);
 618                         f = colorscale * (1 - exp(fogdensity/DotProduct(diff, diff)));
 619                         VectorScale(c, f, c);
 620                 }
 621         }
 622         else if (colorscale != 1)
 623                 for (i = 0;i < numverts;i++, c += 4)
 624                         VectorScale(c, colorscale, c);
 625 }
 626
 627 static void RSurf_FoggedColors_Vertex3f_Color4f(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
 628 {
 629         int i;
 630         float diff[3], f;
 631         r *= colorscale;
 632         g *= colorscale;
 633         b *= colorscale;
 634         if (fogenabled)
 635         {
 636                 for (i = 0;i < numverts;i++, v += 3, c += 4)
 637                 {
 638                         VectorSubtract(v, modelorg, diff);
 639                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 640                         c[0] = r * f;
 641                         c[1] = g * f;
 642                         c[2] = b * f;
 643                         c[3] = a;
 644                 }
 645         }
 646         else
 647         {
 648                 for (i = 0;i < numverts;i++, c += 4)
 649                 {
 650                         c[0] = r;
 651                         c[1] = g;
 652                         c[2] = b;
 653                         c[3] = a;
 654                 }
 655         }
 656 }
 657
 658 static void RSurf_FogPassColors_Vertex3f_Color4f(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
 659 {
 660         int i;
 661         float diff[3], f;
 662         r *= colorscale;
 663         g *= colorscale;
 664         b *= colorscale;
 665         for (i = 0;i < numverts;i++, v += 3, c += 4)
 666         {
 667                 VectorSubtract(v, modelorg, diff);
 668                 f = exp(fogdensity/DotProduct(diff, diff));
 669                 c[0] = r;
 670                 c[1] = g;
 671                 c[2] = b;
 672                 c[3] = a * f;
 673         }
 674 }
 675
 676 static int RSurf_LightSeparate_Vertex3f_Color4f(const matrix4x4_t *matrix, const int *dlightbits, int numverts, const float *vert, float *color, float scale)
 677 {
 678         float f;
 679         const float *v;
 680         float *c;
 681         int i, l, lit = false;
 682         const rdlight_t *rd;
 683         vec3_t lightorigin;
 684         for (l = 0;l < r_numdlights;l++)
 685         {
 686                 if (dlightbits[l >> 5] & (1 << (l & 31)))
 687                 {
 688                         rd = &r_dlight[l];
 689                         Matrix4x4_Transform(matrix, rd->origin, lightorigin);
 690                         for (i = 0, v = vert, c = color;i < numverts;i++, v += 3, c += 4)
 691                         {
 692                                 f = VectorDistance2(v, lightorigin) + LIGHTOFFSET;
 693                                 if (f < rd->cullradius2)
 694                                 {
 695                                         f = ((1.0f / f) - rd->subtract) * scale;
 696                                         VectorMA(c, f, rd->light, c);
 697                                         lit = true;
 698                                 }
 699                         }
 700                 }
 701         }
 702         return lit;
 703 }
 704
 705 // note: this untransforms lights to do the checking
 706 static int RSurf_LightCheck(const matrix4x4_t *matrix, const int *dlightbits, const surfmesh_t *mesh)
 707 {
 708         int i, l;
 709         const rdlight_t *rd;
 710         vec3_t lightorigin;
 711         const float *v;
 712         for (l = 0;l < r_numdlights;l++)
 713         {
 714                 if (dlightbits[l >> 5] & (1 << (l & 31)))
 715                 {
 716                         rd = &r_dlight[l];
 717                         Matrix4x4_Transform(matrix, rd->origin, lightorigin);
 718                         for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
 719                                 if (VectorDistance2(v, lightorigin) < rd->cullradius2)
 720                                         return true;
 721                 }
 722         }
 723         return false;
 724 }
 725
 726 static void RSurfShader_Sky(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
 727 {
 728         const msurface_t *surf;
 729         const surfmesh_t *mesh;
 730         rmeshstate_t m;
 731
 732         // LordHavoc: HalfLife maps have freaky skypolys...
 733         if (ent->model->brush.ishlbsp)
 734                 return;
 735
 736         if (skyrendernow)
 737         {
 738                 skyrendernow = false;
 739                 if (skyrendermasked)
 740                         R_Sky();
 741         }
 742
 743         R_Mesh_Matrix(&ent->matrix);
 744
 745         GL_Color(fogcolor[0], fogcolor[1], fogcolor[2], 1);
 746         if (skyrendermasked)
 747         {
 748                 // depth-only (masking)
 749                 qglColorMask(0,0,0,0);
 750                 // just to make sure that braindead drivers don't draw anything
 751                 // despite that colormask...
 752                 GL_BlendFunc(GL_ZERO, GL_ONE);
 753         }
 754         else
 755         {
 756                 // fog sky
 757                 GL_BlendFunc(GL_ONE, GL_ZERO);
 758         }
 759         GL_DepthMask(true);
 760         GL_DepthTest(true);
 761
 762         memset(&m, 0, sizeof(m));
 763         R_Mesh_State_Texture(&m);
 764
 765         while((surf = *surfchain++) != NULL)
 766         {
 767                 if (surf->visframe == r_framecount)
 768                 {
 769                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
 770                         {
 771                                 GL_VertexPointer(mesh->vertex3f);
 772                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
 773                         }
 774                 }
 775         }
 776         qglColorMask(1,1,1,1);
 777 }
 778
 779 static void RSurfShader_Water_Callback(const void *calldata1, int calldata2)
 780 {
 781         const entity_render_t *ent = calldata1;
 782         const msurface_t *surf = ent->model->brushq1.surfaces + calldata2;
 783         float colorscale;
 784         const surfmesh_t *mesh;
 785         rmeshstate_t m;
 786         float alpha;
 787         float modelorg[3];
 788         texture_t *texture;
 789         matrix4x4_t tempmatrix;
 790         float   args[4] = {0.05f,0,0,0.04f};
 791
 792         if (r_waterscroll.value)
 793         {
 794                 // scrolling in texture matrix
 795                 Matrix4x4_CreateTranslate(&tempmatrix, sin(cl.time) * 0.025 * r_waterscroll.value, sin(cl.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
 796                 if (gl_textureshader && r_watershader.integer)
 797                 {
 798                         R_Mesh_TextureMatrix(1, &tempmatrix);
 799                         Matrix4x4_CreateTranslate(&tempmatrix, -sin(cl.time) * 0.025 * r_waterscroll.value, -sin(cl.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
 800                 }
 801                 R_Mesh_TextureMatrix(0, &tempmatrix);
 802         }
 803
 804         R_Mesh_Matrix(&ent->matrix);
 805         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
 806
 807         memset(&m, 0, sizeof(m));
 808         texture = surf->texinfo->texture->currentframe;
 809         alpha = texture->currentalpha;
 810         if (texture->rendertype == SURFRENDER_ADD)
 811         {
 812                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 813                 GL_DepthMask(false);
 814         }
 815         else if (texture->rendertype == SURFRENDER_ALPHA)
 816         {
 817                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 818                 GL_DepthMask(false);
 819         }
 820         else
 821         {
 822                 GL_BlendFunc(GL_ONE, GL_ZERO);
 823                 GL_DepthMask(true);
 824         }
 825         if (gl_textureshader && r_watershader.integer)
 826         {
 827                 m.tex[0] = R_GetTexture(mod_shared_distorttexture);
 828                 m.tex[1] = R_GetTexture(texture->skin.base);
 829         }
 830         else
 831                 m.tex[0] = R_GetTexture(texture->skin.base);
 832         colorscale = 1;
 833         if (gl_combine.integer)
 834         {
 835                 m.texrgbscale[0] = 4;
 836                 colorscale *= 0.25f;
 837         }
 838         GL_DepthTest(true);
 839         if (fogenabled)
 840                 GL_ColorPointer(varray_color4f);
 841         else
 842                 GL_Color(1, 1, 1, alpha);
 843         if (gl_textureshader && r_watershader.integer)
 844         {
 845                 GL_ActiveTexture (0);
 846                 qglTexEnvi (GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
 847                 GL_ActiveTexture (1);
 848                 qglTexEnvi (GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
 849                 qglTexEnvi (GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_OFFSET_TEXTURE_2D_NV);
 850                 qglTexEnvi (GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB);
 851                 qglTexEnvfv (GL_TEXTURE_SHADER_NV, GL_OFFSET_TEXTURE_MATRIX_NV, &args[0]);
 852                 qglEnable (GL_TEXTURE_SHADER_NV);
 853         }
 854         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
 855         {
 856                 GL_VertexPointer(mesh->vertex3f);
 857                 m.pointer_texcoord[0] = mesh->texcoordtexture2f;
 858                 m.pointer_texcoord[1] = mesh->texcoordtexture2f;
 859                 m.texcombinergb[1] = GL_REPLACE;
 860                 R_Mesh_State_Texture(&m);
 861                 if (fogenabled)
 862                 {
 863                         R_FillColors(varray_color4f, mesh->numverts, 1, 1, 1, alpha);
 864                         RSurf_FogColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, colorscale, mesh->numverts, modelorg);
 865                 }
 866                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
 867         }
 868         if (gl_textureshader && r_watershader.integer)
 869         {
 870                 qglDisable (GL_TEXTURE_SHADER_NV);
 871                 GL_ActiveTexture (0);
 872         }
 873
 874         if (fogenabled)
 875         {
 876                 memset(&m, 0, sizeof(m));
 877                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 878                 GL_DepthMask(false);
 879                 GL_DepthTest(true);
 880                 m.tex[0] = R_GetTexture(texture->skin.fog);
 881                 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
 882                 {
 883                         GL_VertexPointer(mesh->vertex3f);
 884                         m.pointer_texcoord[0] = mesh->texcoordtexture2f;
 885                         GL_ColorPointer(varray_color4f);
 886                         R_Mesh_State_Texture(&m);
 887                         RSurf_FogPassColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], alpha, 1, mesh->numverts, modelorg);
 888                         R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
 889                 }
 890         }
 891
 892         if (r_waterscroll.value)
 893         {
 894                 Matrix4x4_CreateIdentity(&tempmatrix);
 895                 R_Mesh_TextureMatrix(0, &tempmatrix);
 896                 R_Mesh_TextureMatrix(1, &tempmatrix);
 897         }
 898 }
 899
 900 static void RSurfShader_Water(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
 901 {
 902         const msurface_t *surf;
 903         msurface_t **chain;
 904         vec3_t center;
 905         if (texture->rendertype != SURFRENDER_OPAQUE)
 906         {
 907                 for (chain = surfchain;(surf = *chain) != NULL;chain++)
 908                 {
 909                         if (surf->visframe == r_framecount)
 910                         {
 911                                 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
 912                                 R_MeshQueue_AddTransparent(center, RSurfShader_Water_Callback, ent, surf - ent->model->brushq1.surfaces);
 913                         }
 914                 }
 915         }
 916         else
 917                 for (chain = surfchain;(surf = *chain) != NULL;chain++)
 918                         if (surf->visframe == r_framecount)
 919                                 RSurfShader_Water_Callback(ent, surf - ent->model->brushq1.surfaces);
 920 }
 921
 922 static void RSurfShader_Wall_Pass_BaseVertex(const entity_render_t *ent, const msurface_t *surf, const texture_t *texture, int rendertype, float currentalpha)
 923 {
 924         float base, colorscale;
 925         const surfmesh_t *mesh;
 926         rmeshstate_t m;
 927         float modelorg[3];
 928         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
 929         memset(&m, 0, sizeof(m));
 930         if (rendertype == SURFRENDER_ADD)
 931         {
 932                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 933                 GL_DepthMask(false);
 934         }
 935         else if (rendertype == SURFRENDER_ALPHA)
 936         {
 937                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 938                 GL_DepthMask(false);
 939         }
 940         else
 941         {
 942                 GL_BlendFunc(GL_ONE, GL_ZERO);
 943                 GL_DepthMask(true);
 944         }
 945         m.tex[0] = R_GetTexture(texture->skin.base);
 946         colorscale = 1;
 947         if (gl_combine.integer)
 948         {
 949                 m.texrgbscale[0] = 4;
 950                 colorscale *= 0.25f;
 951         }
 952         base = ent->effects & EF_FULLBRIGHT ? 2.0f : r_ambient.value * (1.0f / 64.0f);
 953         GL_DepthTest(true);
 954         GL_ColorPointer(varray_color4f);
 955         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
 956         {
 957                 GL_VertexPointer(mesh->vertex3f);
 958                 m.pointer_texcoord[0] = mesh->texcoordtexture2f;
 959                 R_Mesh_State_Texture(&m);
 960                 R_FillColors(varray_color4f, mesh->numverts, base, base, base, currentalpha);
 961                 if (!(ent->effects & EF_FULLBRIGHT))
 962                 {
 963                         if (surf->dlightframe == r_framecount)
 964                                 RSurf_LightSeparate_Vertex3f_Color4f(&ent->inversematrix, surf->dlightbits, mesh->numverts, mesh->vertex3f, varray_color4f, 1);
 965                         if (surf->flags & SURF_LIGHTMAP)
 966                                 RSurf_AddLightmapToVertexColors_Color4f(mesh->lightmapoffsets, varray_color4f, mesh->numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
 967                 }
 968                 RSurf_FogColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, colorscale, mesh->numverts, modelorg);
 969                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
 970         }
 971 }
 972
 973 static void RSurfShader_Wall_Pass_Glow(const entity_render_t *ent, const msurface_t *surf, const texture_t *texture, int rendertype, float currentalpha)
 974 {
 975         const surfmesh_t *mesh;
 976         rmeshstate_t m;
 977         float modelorg[3];
 978         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
 979         memset(&m, 0, sizeof(m));
 980         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 981         GL_DepthMask(false);
 982         GL_DepthTest(true);
 983         m.tex[0] = R_GetTexture(texture->skin.glow);
 984         GL_ColorPointer(varray_color4f);
 985         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
 986         {
 987                 GL_VertexPointer(mesh->vertex3f);
 988                 if (m.tex[0])
 989                         m.pointer_texcoord[0] = mesh->texcoordtexture2f;
 990                 R_Mesh_State_Texture(&m);
 991                 RSurf_FoggedColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, 1, 1, 1, currentalpha, 1, mesh->numverts, modelorg);
 992                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
 993         }
 994 }
 995
 996 static void RSurfShader_Wall_Pass_Fog(const entity_render_t *ent, const msurface_t *surf, const texture_t *texture, int rendertype, float currentalpha)
 997 {
 998         const surfmesh_t *mesh;
 999         rmeshstate_t m;
1000         float modelorg[3];
1001         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1002         memset(&m, 0, sizeof(m));
1003         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1004         GL_DepthMask(false);
1005         GL_DepthTest(true);
1006         m.tex[0] = R_GetTexture(texture->skin.fog);
1007         GL_ColorPointer(varray_color4f);
1008         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1009         {
1010                 GL_VertexPointer(mesh->vertex3f);
1011                 if (m.tex[0])
1012                         m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1013                 R_Mesh_State_Texture(&m);
1014                 RSurf_FogPassColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], currentalpha, 1, mesh->numverts, modelorg);
1015                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1016         }
1017 }
1018
1019 static void RSurfShader_OpaqueWall_Pass_BaseTripleTexCombine(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1020 {
1021         const msurface_t *surf;
1022         const surfmesh_t *mesh;
1023         rmeshstate_t m;
1024         int lightmaptexturenum;
1025         float cl;
1026         memset(&m, 0, sizeof(m));
1027         GL_BlendFunc(GL_ONE, GL_ZERO);
1028         GL_DepthMask(true);
1029         GL_DepthTest(true);
1030         m.tex[0] = R_GetTexture(texture->skin.base);
1031         m.tex[1] = R_GetTexture((**surfchain).lightmaptexture);
1032         m.tex[2] = R_GetTexture(texture->skin.detail);
1033         m.texrgbscale[0] = 1;
1034         m.texrgbscale[1] = 4;
1035         m.texrgbscale[2] = 2;
1036         cl = (float) (1 << r_lightmapscalebit);
1037         GL_Color(cl, cl, cl, 1);
1038
1039         while((surf = *surfchain++) != NULL)
1040         {
1041                 if (surf->visframe == r_framecount)
1042                 {
1043                         lightmaptexturenum = R_GetTexture(surf->lightmaptexture);
1044                         //if (m.tex[1] != lightmaptexturenum)
1045                         //{
1046                                 m.tex[1] = lightmaptexturenum;
1047                         //      R_Mesh_State_Texture(&m);
1048                         //}
1049                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1050                         {
1051                                 GL_VertexPointer(mesh->vertex3f);
1052                                 m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1053                                 m.pointer_texcoord[1] = mesh->texcoordlightmap2f;
1054                                 m.pointer_texcoord[2] = mesh->texcoorddetail2f;
1055                                 R_Mesh_State_Texture(&m);
1056                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1057                         }
1058                 }
1059         }
1060 }
1061
1062 static void RSurfShader_OpaqueWall_Pass_BaseDoubleTex(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1063 {
1064         const msurface_t *surf;
1065         const surfmesh_t *mesh;
1066         rmeshstate_t m;
1067         int lightmaptexturenum;
1068         memset(&m, 0, sizeof(m));
1069         GL_BlendFunc(GL_ONE, GL_ZERO);
1070         GL_DepthMask(true);
1071         GL_DepthTest(true);
1072         m.tex[0] = R_GetTexture(texture->skin.base);
1073         m.tex[1] = R_GetTexture((**surfchain).lightmaptexture);
1074         if (gl_combine.integer)
1075                 m.texrgbscale[1] = 4;
1076         GL_Color(1, 1, 1, 1);
1077         while((surf = *surfchain++) != NULL)
1078         {
1079                 if (surf->visframe == r_framecount)
1080                 {
1081                         lightmaptexturenum = R_GetTexture(surf->lightmaptexture);
1082                         //if (m.tex[1] != lightmaptexturenum)
1083                         //{
1084                                 m.tex[1] = lightmaptexturenum;
1085                         //      R_Mesh_State_Texture(&m);
1086                         //}
1087                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1088                         {
1089                                 GL_VertexPointer(mesh->vertex3f);
1090                                 m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1091                                 m.pointer_texcoord[1] = mesh->texcoordlightmap2f;
1092                                 R_Mesh_State_Texture(&m);
1093                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1094                         }
1095                 }
1096         }
1097 }
1098
1099 static void RSurfShader_OpaqueWall_Pass_BaseTexture(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1100 {
1101         const msurface_t *surf;
1102         const surfmesh_t *mesh;
1103         rmeshstate_t m;
1104         memset(&m, 0, sizeof(m));
1105         GL_DepthMask(true);
1106         GL_DepthTest(true);
1107         GL_BlendFunc(GL_ONE, GL_ZERO);
1108         m.tex[0] = R_GetTexture(texture->skin.base);
1109         GL_Color(1, 1, 1, 1);
1110         while((surf = *surfchain++) != NULL)
1111         {
1112                 if (surf->visframe == r_framecount)
1113                 {
1114                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1115                         {
1116                                 GL_VertexPointer(mesh->vertex3f);
1117                                 m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1118                                 R_Mesh_State_Texture(&m);
1119                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1120                         }
1121                 }
1122         }
1123 }
1124
1125 static void RSurfShader_OpaqueWall_Pass_BaseLightmap(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1126 {
1127         const msurface_t *surf;
1128         const surfmesh_t *mesh;
1129         rmeshstate_t m;
1130         int lightmaptexturenum;
1131         memset(&m, 0, sizeof(m));
1132         GL_BlendFunc(GL_ZERO, GL_SRC_COLOR);
1133         GL_DepthMask(false);
1134         GL_DepthTest(true);
1135         m.tex[0] = R_GetTexture((**surfchain).lightmaptexture);
1136         if (gl_combine.integer)
1137                 m.texrgbscale[0] = 4;
1138         GL_Color(1, 1, 1, 1);
1139         while((surf = *surfchain++) != NULL)
1140         {
1141                 if (surf->visframe == r_framecount)
1142                 {
1143                         lightmaptexturenum = R_GetTexture(surf->lightmaptexture);
1144                         //if (m.tex[0] != lightmaptexturenum)
1145                         //{
1146                                 m.tex[0] = lightmaptexturenum;
1147                         //      R_Mesh_State_Texture(&m);
1148                         //}
1149                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1150                         {
1151                                 GL_VertexPointer(mesh->vertex3f);
1152                                 m.pointer_texcoord[0] = mesh->texcoordlightmap2f;
1153                                 R_Mesh_State_Texture(&m);
1154                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1155                         }
1156                 }
1157         }
1158 }
1159
1160 static void RSurfShader_OpaqueWall_Pass_Light(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1161 {
1162         const msurface_t *surf;
1163         const surfmesh_t *mesh;
1164         float colorscale;
1165         rmeshstate_t m;
1166
1167         memset(&m, 0, sizeof(m));
1168         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1169         GL_DepthMask(false);
1170         GL_DepthTest(true);
1171         m.tex[0] = R_GetTexture(texture->skin.base);
1172         colorscale = 1;
1173         if (gl_combine.integer)
1174         {
1175                 m.texrgbscale[0] = 4;
1176                 colorscale *= 0.25f;
1177         }
1178         GL_ColorPointer(varray_color4f);
1179         while((surf = *surfchain++) != NULL)
1180         {
1181                 if (surf->visframe == r_framecount && surf->dlightframe == r_framecount)
1182                 {
1183                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1184                         {
1185                                 if (RSurf_LightCheck(&ent->inversematrix, surf->dlightbits, mesh))
1186                                 {
1187                                         GL_VertexPointer(mesh->vertex3f);
1188                                         m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1189                                         R_FillColors(varray_color4f, mesh->numverts, 0, 0, 0, 1);
1190                                         R_Mesh_State_Texture(&m);
1191                                         RSurf_LightSeparate_Vertex3f_Color4f(&ent->inversematrix, surf->dlightbits, mesh->numverts, mesh->vertex3f, varray_color4f, colorscale);
1192                                         R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1193                                 }
1194                         }
1195                 }
1196         }
1197 }
1198
1199 static void RSurfShader_OpaqueWall_Pass_Fog(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1200 {
1201         const msurface_t *surf;
1202         const surfmesh_t *mesh;
1203         rmeshstate_t m;
1204         float modelorg[3];
1205         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1206         memset(&m, 0, sizeof(m));
1207         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1208         GL_DepthMask(false);
1209         GL_DepthTest(true);
1210         GL_ColorPointer(varray_color4f);
1211         while((surf = *surfchain++) != NULL)
1212         {
1213                 if (surf->visframe == r_framecount)
1214                 {
1215                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1216                         {
1217                                 GL_VertexPointer(mesh->vertex3f);
1218                                 if (m.tex[0])
1219                                         m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1220                                 R_Mesh_State_Texture(&m);
1221                                 RSurf_FogPassColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], 1, 1, mesh->numverts, modelorg);
1222                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1223                         }
1224                 }
1225         }
1226 }
1227
1228 static void RSurfShader_OpaqueWall_Pass_BaseDetail(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1229 {
1230         const msurface_t *surf;
1231         const surfmesh_t *mesh;
1232         rmeshstate_t m;
1233         memset(&m, 0, sizeof(m));
1234         GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
1235         GL_DepthMask(false);
1236         GL_DepthTest(true);
1237         m.tex[0] = R_GetTexture(texture->skin.detail);
1238         GL_Color(1, 1, 1, 1);
1239         while((surf = *surfchain++) != NULL)
1240         {
1241                 if (surf->visframe == r_framecount)
1242                 {
1243                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1244                         {
1245                                 GL_VertexPointer(mesh->vertex3f);
1246                                 m.pointer_texcoord[0] = mesh->texcoorddetail2f;
1247                                 R_Mesh_State_Texture(&m);
1248                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1249                         }
1250                 }
1251         }
1252 }
1253
1254 static void RSurfShader_OpaqueWall_Pass_Glow(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1255 {
1256         const msurface_t *surf;
1257         const surfmesh_t *mesh;
1258         rmeshstate_t m;
1259         memset(&m, 0, sizeof(m));
1260         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1261         GL_DepthMask(false);
1262         GL_DepthTest(true);
1263         m.tex[0] = R_GetTexture(texture->skin.glow);
1264         GL_Color(1, 1, 1, 1);
1265         while((surf = *surfchain++) != NULL)
1266         {
1267                 if (surf->visframe == r_framecount)
1268                 {
1269                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1270                         {
1271                                 GL_VertexPointer(mesh->vertex3f);
1272                                 m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1273                                 R_Mesh_State_Texture(&m);
1274                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1275                         }
1276                 }
1277         }
1278 }
1279
1280 static void RSurfShader_OpaqueWall_Pass_OpaqueGlow(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1281 {
1282         const msurface_t *surf;
1283         const surfmesh_t *mesh;
1284         rmeshstate_t m;
1285         memset(&m, 0, sizeof(m));
1286         GL_BlendFunc(GL_SRC_ALPHA, GL_ZERO);
1287         GL_DepthMask(true);
1288         m.tex[0] = R_GetTexture(texture->skin.glow);
1289         if (m.tex[0])
1290                 GL_Color(1, 1, 1, 1);
1291         else
1292                 GL_Color(0, 0, 0, 1);
1293         while((surf = *surfchain++) != NULL)
1294         {
1295                 if (surf->visframe == r_framecount)
1296                 {
1297                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1298                         {
1299                                 GL_VertexPointer(mesh->vertex3f);
1300                                 m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1301                                 R_Mesh_State_Texture(&m);
1302                                 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1303                         }
1304                 }
1305         }
1306 }
1307
1308 static void RSurfShader_Wall_Vertex_Callback(const void *calldata1, int calldata2)
1309 {
1310         const entity_render_t *ent = calldata1;
1311         const msurface_t *surf = ent->model->brushq1.surfaces + calldata2;
1312         int rendertype;
1313         float currentalpha;
1314         texture_t *texture;
1315         R_Mesh_Matrix(&ent->matrix);
1316
1317         texture = surf->texinfo->texture;
1318         if (texture->animated)
1319                 texture = texture->anim_frames[ent->frame != 0][(texture->anim_total[ent->frame != 0] >= 2) ? ((int) (cl.time * 5.0f) % texture->anim_total[ent->frame != 0]) : 0];
1320
1321         currentalpha = ent->alpha;
1322         if (ent->effects & EF_ADDITIVE)
1323                 rendertype = SURFRENDER_ADD;
1324         else if (currentalpha < 1 || texture->skin.fog != NULL)
1325                 rendertype = SURFRENDER_ALPHA;
1326         else
1327                 rendertype = SURFRENDER_OPAQUE;
1328
1329         RSurfShader_Wall_Pass_BaseVertex(ent, surf, texture, rendertype, currentalpha);
1330         if (texture->skin.glow)
1331                 RSurfShader_Wall_Pass_Glow(ent, surf, texture, rendertype, currentalpha);
1332         if (fogenabled)
1333                 RSurfShader_Wall_Pass_Fog(ent, surf, texture, rendertype, currentalpha);
1334 }
1335
1336 static void RSurfShader_Wall_Lightmap(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1337 {
1338         const msurface_t *surf;
1339         msurface_t **chain;
1340         vec3_t center;
1341         if (texture->rendertype != SURFRENDER_OPAQUE)
1342         {
1343                 // transparent vertex shaded from lightmap
1344                 for (chain = surfchain;(surf = *chain) != NULL;chain++)
1345                 {
1346                         if (surf->visframe == r_framecount)
1347                         {
1348                                 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1349                                 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->brushq1.surfaces);
1350                         }
1351                 }
1352         }
1353         else if (r_shadow_realtime_world.integer)
1354         {
1355                 // opaque base lighting
1356                 RSurfShader_OpaqueWall_Pass_OpaqueGlow(ent, texture, surfchain);
1357                 if (fogenabled)
1358                         RSurfShader_OpaqueWall_Pass_Fog(ent, texture, surfchain);
1359         }
1360         else if (r_vertexsurfaces.integer)
1361         {
1362                 // opaque vertex shaded from lightmap
1363                 for (chain = surfchain;(surf = *chain) != NULL;chain++)
1364                         if (surf->visframe == r_framecount)
1365                                 RSurfShader_Wall_Pass_BaseVertex(ent, surf, texture, texture->rendertype, texture->currentalpha);
1366                 if (texture->skin.glow)
1367                         for (chain = surfchain;(surf = *chain) != NULL;chain++)
1368                                 if (surf->visframe == r_framecount)
1369                                         RSurfShader_Wall_Pass_Glow(ent, surf, texture, texture->rendertype, texture->currentalpha);
1370                 if (fogenabled)
1371                         for (chain = surfchain;(surf = *chain) != NULL;chain++)
1372                                 if (surf->visframe == r_framecount)
1373                                         RSurfShader_Wall_Pass_Fog(ent, surf, texture, texture->rendertype, texture->currentalpha);
1374         }
1375         else
1376         {
1377                 // opaque lightmapped
1378                 if (r_textureunits.integer >= 3 && gl_combine.integer && r_detailtextures.integer)
1379                         RSurfShader_OpaqueWall_Pass_BaseTripleTexCombine(ent, texture, surfchain);
1380                 else if (r_textureunits.integer >= 2)
1381                 {
1382                         RSurfShader_OpaqueWall_Pass_BaseDoubleTex(ent, texture, surfchain);
1383                         if (r_detailtextures.integer)
1384                                 RSurfShader_OpaqueWall_Pass_BaseDetail(ent, texture, surfchain);
1385                 }
1386                 else
1387                 {
1388                         RSurfShader_OpaqueWall_Pass_BaseTexture(ent, texture, surfchain);
1389                         RSurfShader_OpaqueWall_Pass_BaseLightmap(ent, texture, surfchain);
1390                         if (r_detailtextures.integer)
1391                                 RSurfShader_OpaqueWall_Pass_BaseDetail(ent, texture, surfchain);
1392                 }
1393                 if (!r_dlightmap.integer && !(ent->effects & EF_FULLBRIGHT))
1394                         RSurfShader_OpaqueWall_Pass_Light(ent, texture, surfchain);
1395                 if (texture->skin.glow)
1396                         RSurfShader_OpaqueWall_Pass_Glow(ent, texture, surfchain);
1397                 if (fogenabled)
1398                         RSurfShader_OpaqueWall_Pass_Fog(ent, texture, surfchain);
1399         }
1400 }
1401
1402 Cshader_t Cshader_wall_lightmap = {{NULL, RSurfShader_Wall_Lightmap}, SHADERFLAGS_NEEDLIGHTMAP};
1403 Cshader_t Cshader_water = {{NULL, RSurfShader_Water}, 0};
1404 Cshader_t Cshader_sky = {{RSurfShader_Sky, NULL}, 0};
1405
1406 int Cshader_count = 3;
1407 Cshader_t *Cshaders[3] =
1408 {
1409         &Cshader_wall_lightmap,
1410         &Cshader_water,
1411         &Cshader_sky
1412 };
1413
1414 void R_UpdateTextureInfo(entity_render_t *ent)
1415 {
1416         int i, texframe, alttextures;
1417         texture_t *t;
1418
1419         if (!ent->model)
1420                 return;
1421
1422         alttextures = ent->frame != 0;
1423         texframe = (int)(cl.time * 5.0f);
1424         for (i = 0;i < ent->model->brushq1.numtextures;i++)
1425         {
1426                 t = ent->model->brushq1.textures + i;
1427                 t->currentalpha = ent->alpha;
1428                 if (t->flags & SURF_WATERALPHA)
1429                         t->currentalpha *= r_wateralpha.value;
1430                 if (ent->effects & EF_ADDITIVE)
1431                         t->rendertype = SURFRENDER_ADD;
1432                 else if (t->currentalpha < 1 || t->skin.fog != NULL)
1433                         t->rendertype = SURFRENDER_ALPHA;
1434                 else
1435                         t->rendertype = SURFRENDER_OPAQUE;
1436                 // we don't need to set currentframe if t->animated is false because
1437                 // it was already set up by the texture loader for non-animating
1438                 if (t->animated)
1439                         t->currentframe = t->anim_frames[alttextures][(t->anim_total[alttextures] >= 2) ? (texframe % t->anim_total[alttextures]) : 0];
1440         }
1441 }
1442
1443 void R_PrepareSurfaces(entity_render_t *ent)
1444 {
1445         int i, numsurfaces, *surfacevisframes;
1446         model_t *model;
1447         msurface_t *surf, *surfaces, **surfchain;
1448         vec3_t modelorg;
1449
1450         if (!ent->model)
1451                 return;
1452
1453         model = ent->model;
1454         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1455         numsurfaces = model->brushq1.nummodelsurfaces;
1456         surfaces = model->brushq1.surfaces + model->brushq1.firstmodelsurface;
1457         surfacevisframes = model->brushq1.surfacevisframes + model->brushq1.firstmodelsurface;
1458
1459         R_UpdateTextureInfo(ent);
1460
1461         if (r_dynamic.integer && !r_shadow_realtime_dlight.integer)
1462                 R_MarkLights(ent);
1463
1464         if (model->brushq1.light_ambient != r_ambient.value || model->brushq1.light_scalebit != r_lightmapscalebit)
1465         {
1466                 model->brushq1.light_ambient = r_ambient.value;
1467                 model->brushq1.light_scalebit = r_lightmapscalebit;
1468                 for (i = 0;i < model->brushq1.nummodelsurfaces;i++)
1469                         model->brushq1.surfaces[i + model->brushq1.firstmodelsurface].cached_dlight = true;
1470         }
1471         else
1472         {
1473                 for (i = 0;i < model->brushq1.light_styles;i++)
1474                 {
1475                         if (model->brushq1.light_stylevalue[i] != d_lightstylevalue[model->brushq1.light_style[i]])
1476                         {
1477                                 model->brushq1.light_stylevalue[i] = d_lightstylevalue[model->brushq1.light_style[i]];
1478                                 for (surfchain = model->brushq1.light_styleupdatechains[i];*surfchain;surfchain++)
1479                                         (**surfchain).cached_dlight = true;
1480                         }
1481                 }
1482         }
1483
1484         for (i = 0, surf = surfaces;i < numsurfaces;i++, surf++)
1485         {
1486                 if (surfacevisframes[i] == r_framecount)
1487                 {
1488 #if !WORLDNODECULLBACKFACES
1489                         // mark any backface surfaces as not visible
1490                         if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1491                         {
1492                                 if (!(surf->flags & SURF_PLANEBACK))
1493                                         surfacevisframes[i] = -1;
1494                         }
1495                         else
1496                         {
1497                                 if ((surf->flags & SURF_PLANEBACK))
1498                                         surfacevisframes[i] = -1;
1499                         }
1500                         if (surfacevisframes[i] == r_framecount)
1501 #endif
1502                         {
1503                                 c_faces++;
1504                                 surf->visframe = r_framecount;
1505                                 if (surf->cached_dlight && surf->lightmaptexture != NULL && !r_vertexsurfaces.integer)
1506                                         R_BuildLightMap(ent, surf);
1507                         }
1508                 }
1509         }
1510 }
1511
1512 void R_DrawSurfaces(entity_render_t *ent, int type, msurface_t ***chains)
1513 {
1514         int i;
1515         texture_t *t;
1516         if (ent->model == NULL)
1517                 return;
1518         R_Mesh_Matrix(&ent->matrix);
1519         for (i = 0, t = ent->model->brushq1.textures;i < ent->model->brushq1.numtextures;i++, t++)
1520                 if (t->shader->shaderfunc[type] && t->currentframe && chains[i] != NULL)
1521                         t->shader->shaderfunc[type](ent, t->currentframe, chains[i]);
1522 }
1523
1524 static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
1525 {
1526         int i;
1527         float *v;
1528         rmeshstate_t m;
1529         const entity_render_t *ent = calldata1;
1530         const mportal_t *portal = ent->model->brushq1.portals + calldata2;
1531         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1532         GL_DepthMask(false);
1533         GL_DepthTest(true);
1534         R_Mesh_Matrix(&ent->matrix);
1535         GL_VertexPointer(varray_vertex3f);
1536
1537         memset(&m, 0, sizeof(m));
1538         R_Mesh_State_Texture(&m);
1539
1540         i = portal - ent->model->brushq1.portals;
1541         GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
1542                          ((i & 0x0038) >> 3) * (1.0f / 7.0f),
1543                          ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
1544                          0.125f);
1545         if (PlaneDiff(r_origin, (&portal->plane)) < 0)
1546         {
1547                 for (i = portal->numpoints - 1, v = varray_vertex3f;i >= 0;i--, v += 3)
1548                         VectorCopy(portal->points[i].position, v);
1549         }
1550         else
1551                 for (i = 0, v = varray_vertex3f;i < portal->numpoints;i++, v += 3)
1552                         VectorCopy(portal->points[i].position, v);
1553         R_Mesh_Draw(portal->numpoints, portal->numpoints - 2, polygonelements);
1554 }
1555
1556 // LordHavoc: this is just a nice debugging tool, very slow
1557 static void R_DrawPortals(entity_render_t *ent)
1558 {
1559         int i;
1560         mportal_t *portal, *endportal;
1561         float temp[3], center[3], f;
1562         if (ent->model == NULL)
1563                 return;
1564         for (portal = ent->model->brushq1.portals, endportal = portal + ent->model->brushq1.numportals;portal < endportal;portal++)
1565         {
1566                 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
1567                 {
1568                         VectorClear(temp);
1569                         for (i = 0;i < portal->numpoints;i++)
1570                                 VectorAdd(temp, portal->points[i].position, temp);
1571                         f = ixtable[portal->numpoints];
1572                         VectorScale(temp, f, temp);
1573                         Matrix4x4_Transform(&ent->matrix, temp, center);
1574                         R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, ent, portal - ent->model->brushq1.portals);
1575                 }
1576         }
1577 }
1578
1579 void R_PrepareBrushModel(entity_render_t *ent)
1580 {
1581         int i, numsurfaces, *surfacevisframes, *surfacepvsframes;
1582         msurface_t *surf;
1583         model_t *model;
1584 #if WORLDNODECULLBACKFACES
1585         vec3_t modelorg;
1586 #endif
1587
1588         // because bmodels can be reused, we have to decide which things to render
1589         // from scratch every time
1590         model = ent->model;
1591         if (model == NULL)
1592                 return;
1593 #if WORLDNODECULLBACKFACES
1594         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1595 #endif
1596         numsurfaces = model->brushq1.nummodelsurfaces;
1597         surf = model->brushq1.surfaces + model->brushq1.firstmodelsurface;
1598         surfacevisframes = model->brushq1.surfacevisframes + model->brushq1.firstmodelsurface;
1599         surfacepvsframes = model->brushq1.surfacepvsframes + model->brushq1.firstmodelsurface;
1600         for (i = 0;i < numsurfaces;i++, surf++)
1601         {
1602 #if WORLDNODECULLBACKFACES
1603                 // mark any backface surfaces as not visible
1604                 if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1605                 {
1606                         if ((surf->flags & SURF_PLANEBACK))
1607                                 surfacevisframes[i] = r_framecount;
1608                 }
1609                 else if (!(surf->flags & SURF_PLANEBACK))
1610                         surfacevisframes[i] = r_framecount;
1611 #else
1612                 surfacevisframes[i] = r_framecount;
1613 #endif
1614                 surf->dlightframe = -1;
1615         }
1616         R_PrepareSurfaces(ent);
1617 }
1618
1619 void R_SurfaceWorldNode (entity_render_t *ent)
1620 {
1621         int i, *surfacevisframes, *surfacepvsframes, surfnum;
1622         msurface_t *surf;
1623         mleaf_t *leaf;
1624         model_t *model;
1625         vec3_t modelorg;
1626
1627         // equivilant to quake's RecursiveWorldNode but faster and more effective
1628         model = ent->model;
1629         if (model == NULL)
1630                 return;
1631         surfacevisframes = model->brushq1.surfacevisframes + model->brushq1.firstmodelsurface;
1632         surfacepvsframes = model->brushq1.surfacepvsframes + model->brushq1.firstmodelsurface;
1633         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1634
1635         for (leaf = model->brushq1.pvsleafchain;leaf;leaf = leaf->pvschain)
1636         {
1637                 if (!R_CullBox (leaf->mins, leaf->maxs))
1638                 {
1639                         c_leafs++;
1640                         leaf->visframe = r_framecount;
1641                 }
1642         }
1643
1644         for (i = 0;i < model->brushq1.pvssurflistlength;i++)
1645         {
1646                 surfnum = model->brushq1.pvssurflist[i];
1647                 surf = model->brushq1.surfaces + surfnum;
1648 #if WORLDNODECULLBACKFACES
1649                 if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1650                 {
1651                         if ((surf->flags & SURF_PLANEBACK) && !R_CullBox (surf->poly_mins, surf->poly_maxs))
1652                                 surfacevisframes[surfnum] = r_framecount;
1653                 }
1654                 else
1655                 {
1656                         if (!(surf->flags & SURF_PLANEBACK) && !R_CullBox (surf->poly_mins, surf->poly_maxs))
1657                                 surfacevisframes[surfnum] = r_framecount;
1658                 }
1659 #else
1660                 if (!R_CullBox (surf->poly_mins, surf->poly_maxs))
1661                         surfacevisframes[surfnum] = r_framecount;
1662 #endif
1663         }
1664 }
1665
1666 static void R_PortalWorldNode(entity_render_t *ent, mleaf_t *viewleaf)
1667 {
1668         int c, leafstackpos, *mark, *surfacevisframes, bitnum;
1669 #if WORLDNODECULLBACKFACES
1670         int n;
1671         msurface_t *surf;
1672 #endif
1673         mleaf_t *leaf, *leafstack[8192];
1674         mportal_t *p;
1675         vec3_t modelorg;
1676         msurface_t *surfaces;
1677         if (ent->model == NULL)
1678                 return;
1679         // LordHavoc: portal-passage worldnode with PVS;
1680         // follows portals leading outward from viewleaf, does not venture
1681         // offscreen or into leafs that are not visible, faster than Quake's
1682         // RecursiveWorldNode
1683         surfaces = ent->model->brushq1.surfaces;
1684         surfacevisframes = ent->model->brushq1.surfacevisframes;
1685         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1686         viewleaf->worldnodeframe = r_framecount;
1687         leafstack[0] = viewleaf;
1688         leafstackpos = 1;
1689         while (leafstackpos)
1690         {
1691                 c_leafs++;
1692                 leaf = leafstack[--leafstackpos];
1693                 leaf->visframe = r_framecount;
1694                 // draw any surfaces bounding this leaf
1695                 if (leaf->nummarksurfaces)
1696                 {
1697                         for (c = leaf->nummarksurfaces, mark = leaf->firstmarksurface;c;c--)
1698                         {
1699 #if WORLDNODECULLBACKFACES
1700                                 n = *mark++;
1701                                 if (surfacevisframes[n] != r_framecount)
1702                                 {
1703                                         surf = surfaces + n;
1704                                         if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1705                                         {
1706                                                 if ((surf->flags & SURF_PLANEBACK))
1707                                                         surfacevisframes[n] = r_framecount;
1708                                         }
1709                                         else
1710                                         {
1711                                                 if (!(surf->flags & SURF_PLANEBACK))
1712                                                         surfacevisframes[n] = r_framecount;
1713                                         }
1714                                 }
1715 #else
1716                                 surfacevisframes[*mark++] = r_framecount;
1717 #endif
1718                         }
1719                 }
1720                 // follow portals into other leafs
1721                 for (p = leaf->portals;p;p = p->next)
1722                 {
1723                         // LordHavoc: this DotProduct hurts less than a cache miss
1724                         // (which is more likely to happen if backflowing through leafs)
1725                         if (DotProduct(modelorg, p->plane.normal) < (p->plane.dist + 1))
1726                         {
1727                                 leaf = p->past;
1728                                 if (leaf->worldnodeframe != r_framecount)
1729                                 {
1730                                         leaf->worldnodeframe = r_framecount;
1731                                         // FIXME: R_CullBox is absolute, should be done relative
1732                                         bitnum = (leaf - ent->model->brushq1.leafs) - 1;
1733                                         if ((r_pvsbits[bitnum >> 3] & (1 << (bitnum & 7))) && !R_CullBox(leaf->mins, leaf->maxs))
1734                                                 leafstack[leafstackpos++] = leaf;
1735                                 }
1736                         }
1737                 }
1738         }
1739 }
1740
1741 void R_PVSUpdate (entity_render_t *ent, mleaf_t *viewleaf)
1742 {
1743         int j, c, *surfacepvsframes, *mark;
1744         mleaf_t *leaf;
1745         model_t *model;
1746
1747         model = ent->model;
1748         if (model && (model->brushq1.pvsviewleaf != viewleaf || model->brushq1.pvsviewleafnovis != r_novis.integer))
1749         {
1750                 model->brushq1.pvsframecount++;
1751                 model->brushq1.pvsviewleaf = viewleaf;
1752                 model->brushq1.pvsviewleafnovis = r_novis.integer;
1753                 model->brushq1.pvsleafchain = NULL;
1754                 model->brushq1.pvssurflistlength = 0;
1755                 if (viewleaf)
1756                 {
1757                         surfacepvsframes = model->brushq1.surfacepvsframes;
1758                         for (j = 0;j < model->brushq1.visleafs;j++)
1759                         {
1760                                 if (r_pvsbits[j >> 3] & (1 << (j & 7)))
1761                                 {
1762                                         leaf = model->brushq1.leafs + j + 1;
1763                                         leaf->pvsframe = model->brushq1.pvsframecount;
1764                                         leaf->pvschain = model->brushq1.pvsleafchain;
1765                                         model->brushq1.pvsleafchain = leaf;
1766                                         // mark surfaces bounding this leaf as visible
1767                                         for (c = leaf->nummarksurfaces, mark = leaf->firstmarksurface;c;c--, mark++)
1768                                                 surfacepvsframes[*mark] = model->brushq1.pvsframecount;
1769                                 }
1770                         }
1771                         model->brushq1.BuildPVSTextureChains(model);
1772                 }
1773         }
1774 }
1775
1776 void R_WorldVisibility(entity_render_t *ent)
1777 {
1778         vec3_t modelorg;
1779         mleaf_t *viewleaf;
1780
1781         Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1782         viewleaf = (ent->model && ent->model->brushq1.PointInLeaf) ? ent->model->brushq1.PointInLeaf(ent->model, modelorg) : NULL;
1783         R_PVSUpdate(ent, viewleaf);
1784
1785         if (!viewleaf)
1786                 return;
1787
1788         if (r_surfaceworldnode.integer || viewleaf->contents == CONTENTS_SOLID)
1789                 R_SurfaceWorldNode (ent);
1790         else
1791                 R_PortalWorldNode (ent, viewleaf);
1792 }
1793
1794 void R_DrawWorld(entity_render_t *ent)
1795 {
1796         if (ent->model == NULL)
1797                 return;
1798         if (!ent->model->brushq1.numleafs && ent->model->Draw)
1799                 ent->model->Draw(ent);
1800         else
1801         {
1802                 R_PrepareSurfaces(ent);
1803                 R_DrawSurfaces(ent, SHADERSTAGE_SKY, ent->model->brushq1.pvstexturechains);
1804                 R_DrawSurfaces(ent, SHADERSTAGE_NORMAL, ent->model->brushq1.pvstexturechains);
1805                 if (r_drawportals.integer)
1806                         R_DrawPortals(ent);
1807         }
1808 }
1809
1810 void R_Model_Brush_DrawSky(entity_render_t *ent)
1811 {
1812         if (ent->model == NULL)
1813                 return;
1814         if (ent != &cl_entities[0].render)
1815                 R_PrepareBrushModel(ent);
1816         R_DrawSurfaces(ent, SHADERSTAGE_SKY, ent->model->brushq1.pvstexturechains);
1817 }
1818
1819 void R_Model_Brush_Draw(entity_render_t *ent)
1820 {
1821         if (ent->model == NULL)
1822                 return;
1823         c_bmodels++;
1824         if (ent != &cl_entities[0].render)
1825                 R_PrepareBrushModel(ent);
1826         R_DrawSurfaces(ent, SHADERSTAGE_NORMAL, ent->model->brushq1.pvstexturechains);
1827 }
1828
1829 void R_Model_Brush_DrawShadowVolume (entity_render_t *ent, vec3_t relativelightorigin, float lightradius)
1830 {
1831         int i;
1832         msurface_t *surf;
1833         float projectdistance, f, temp[3], lightradius2;
1834         surfmesh_t *mesh;
1835         if (ent->model == NULL)
1836                 return;
1837         R_Mesh_Matrix(&ent->matrix);
1838         lightradius2 = lightradius * lightradius;
1839         R_UpdateTextureInfo(ent);
1840         projectdistance = 1000000000.0f;//lightradius + ent->model->radius;
1841         for (i = 0, surf = ent->model->brushq1.surfaces + ent->model->brushq1.firstmodelsurface;i < ent->model->brushq1.nummodelsurfaces;i++, surf++)
1842         {
1843                 if (surf->texinfo->texture->rendertype == SURFRENDER_OPAQUE && surf->flags & SURF_SHADOWCAST)
1844                 {
1845                         f = PlaneDiff(relativelightorigin, surf->plane);
1846                         if (surf->flags & SURF_PLANEBACK)
1847                                 f = -f;
1848                         // draw shadows only for frontfaces and only if they are close
1849                         if (f >= 0.1 && f < lightradius)
1850                         {
1851                                 temp[0] = bound(surf->poly_mins[0], relativelightorigin[0], surf->poly_maxs[0]) - relativelightorigin[0];
1852                                 temp[1] = bound(surf->poly_mins[1], relativelightorigin[1], surf->poly_maxs[1]) - relativelightorigin[1];
1853                                 temp[2] = bound(surf->poly_mins[2], relativelightorigin[2], surf->poly_maxs[2]) - relativelightorigin[2];
1854                                 if (DotProduct(temp, temp) < lightradius2)
1855                                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1856                                                 R_Shadow_Volume(mesh->numverts, mesh->numtriangles, mesh->vertex3f, mesh->element3i, mesh->neighbor3i, relativelightorigin, lightradius, projectdistance);
1857                         }
1858                 }
1859         }
1860 }
1861
1862 void R_Model_Brush_DrawLightForSurfaceList(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, msurface_t **surflist, int numsurfaces, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz)
1863 {
1864         int surfnum;
1865         msurface_t *surf;
1866         texture_t *t;
1867         surfmesh_t *mesh;
1868         if (ent->model == NULL)
1869                 return;
1870         R_Mesh_Matrix(&ent->matrix);
1871         R_UpdateTextureInfo(ent);
1872         for (surfnum = 0;surfnum < numsurfaces;surfnum++)
1873         {
1874                 surf = surflist[surfnum];
1875                 if (surf->visframe == r_framecount)
1876                 {
1877                         t = surf->texinfo->texture->currentframe;
1878                         if (t->rendertype == SURFRENDER_OPAQUE && t->flags & SURF_SHADOWLIGHT)
1879                         {
1880                                 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1881                                 {
1882                                         R_Shadow_DiffuseLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.base, t->skin.nmap, NULL);
1883                                         R_Shadow_SpecularLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.gloss, t->skin.nmap, NULL);
1884                                 }
1885                         }
1886                 }
1887         }
1888 }
1889
1890 void R_Model_Brush_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz)
1891 {
1892         int surfnum;
1893         msurface_t *surf;
1894         texture_t *t;
1895         float f, lightmins[3], lightmaxs[3];
1896         surfmesh_t *mesh;
1897         if (ent->model == NULL)
1898                 return;
1899         R_Mesh_Matrix(&ent->matrix);
1900         lightmins[0] = relativelightorigin[0] - lightradius;
1901         lightmins[1] = relativelightorigin[1] - lightradius;
1902         lightmins[2] = relativelightorigin[2] - lightradius;
1903         lightmaxs[0] = relativelightorigin[0] + lightradius;
1904         lightmaxs[1] = relativelightorigin[1] + lightradius;
1905         lightmaxs[2] = relativelightorigin[2] + lightradius;
1906         R_UpdateTextureInfo(ent);
1907         for (surfnum = 0, surf = ent->model->brushq1.surfaces + ent->model->brushq1.firstmodelsurface;surfnum < ent->model->brushq1.nummodelsurfaces;surfnum++, surf++)
1908         {
1909                 if ((ent != &cl_entities[0].render || surf->visframe == r_framecount) && BoxesOverlap(surf->poly_mins, surf->poly_maxs, lightmins, lightmaxs))
1910                 {
1911                         f = PlaneDiff(relativelightorigin, surf->plane);
1912                         if (surf->flags & SURF_PLANEBACK)
1913                                 f = -f;
1914                         if (f >= -0.1 && f < lightradius)
1915                         {
1916                                 t = surf->texinfo->texture->currentframe;
1917                                 if (t->rendertype == SURFRENDER_OPAQUE && t->flags & SURF_SHADOWLIGHT)
1918                                 {
1919                                         for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1920                                         {
1921                                                 R_Shadow_DiffuseLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.base, t->skin.nmap, NULL);
1922                                                 R_Shadow_SpecularLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.gloss, t->skin.nmap, NULL);
1923                                         }
1924                                 }
1925                         }
1926                 }
1927         }
1928 }
1929
1930 void R_DrawCollisionBrush(colbrushf_t *brush)
1931 {
1932         int i;
1933         i = ((int)brush) / sizeof(colbrushf_t);
1934         GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
1935         GL_VertexPointer(brush->points->v);
1936         R_Mesh_Draw(brush->numpoints, brush->numtriangles, brush->elements);
1937 }
1938
1939 void R_Q3BSP_DrawFace(entity_render_t *ent, q3mface_t *face)
1940 {
1941         rmeshstate_t m;
1942         if (!face->numtriangles)
1943                 return;
1944         if (face->texture->renderflags)
1945         {
1946                 if (face->texture->renderflags & Q3MTEXTURERENDERFLAGS_SKY)
1947                 {
1948                         if (skyrendernow)
1949                         {
1950                                 skyrendernow = false;
1951                                 if (skyrendermasked)
1952                                         R_Sky();
1953                         }
1954
1955                         R_Mesh_Matrix(&ent->matrix);
1956
1957                         GL_Color(fogcolor[0], fogcolor[1], fogcolor[2], 1);
1958                         if (skyrendermasked)
1959                         {
1960                                 // depth-only (masking)
1961                                 qglColorMask(0,0,0,0);
1962                                 // just to make sure that braindead drivers don't draw anything
1963                                 // despite that colormask...
1964                                 GL_BlendFunc(GL_ZERO, GL_ONE);
1965                         }
1966                         else
1967                         {
1968                                 // fog sky
1969                                 GL_BlendFunc(GL_ONE, GL_ZERO);
1970                         }
1971                         GL_DepthMask(true);
1972                         GL_DepthTest(true);
1973
1974                         memset(&m, 0, sizeof(m));
1975                         R_Mesh_State_Texture(&m);
1976
1977                         GL_VertexPointer(face->data_vertex3f);
1978                         R_Mesh_Draw(face->numvertices, face->numtriangles, face->data_element3i);
1979                         qglColorMask(1,1,1,1);
1980                         return;
1981                 }
1982                 if (face->texture->renderflags & Q3MTEXTURERENDERFLAGS_NODRAW)
1983                         return;
1984         }
1985         R_Mesh_Matrix(&ent->matrix);
1986         face->visframe = r_framecount;
1987         memset(&m, 0, sizeof(m));
1988         GL_BlendFunc(GL_ONE, GL_ZERO);
1989         GL_DepthMask(true);
1990         GL_DepthTest(true);
1991         m.tex[0] = R_GetTexture(face->texture->skin.base);
1992         m.pointer_texcoord[0] = face->data_texcoordtexture2f;
1993         if (face->lightmaptexture)
1994         {
1995                 m.tex[1] = R_GetTexture(face->lightmaptexture);
1996                 m.pointer_texcoord[1] = face->data_texcoordlightmap2f;
1997                 m.texrgbscale[1] = 2;
1998                 GL_Color(1, 1, 1, 1);
1999         }
2000         else
2001         {
2002                 m.texrgbscale[0] = 2;
2003                 GL_ColorPointer(face->data_color4f);
2004         }
2005         R_Mesh_State_Texture(&m);
2006         GL_VertexPointer(face->data_vertex3f);
2007         R_Mesh_Draw(face->numvertices, face->numtriangles, face->data_element3i);
2008 }
2009
2010 /*
2011 void R_Q3BSP_DrawSky(entity_render_t *ent)
2012 {
2013 }
2014 */
2015
2016 void R_Q3BSP_RecursiveWorldNode(entity_render_t *ent, q3mnode_t *node, const vec3_t modelorg, qbyte *pvs, int markframe)
2017 {
2018         int i;
2019         q3mleaf_t *leaf;
2020         q3mface_t *face;
2021         while (node->isnode)
2022         {
2023                 if (R_CullBox(node->mins, node->maxs))
2024                         return;
2025                 R_Q3BSP_RecursiveWorldNode(ent, node->children[0], modelorg, pvs, markframe);
2026                 node = node->children[1];
2027         }
2028         if (R_CullBox(node->mins, node->maxs))
2029                 return;
2030         leaf = (q3mleaf_t *)node;
2031         if (pvs[leaf->clusterindex >> 3] & (1 << (leaf->clusterindex & 7)))
2032         {
2033                 for (i = 0;i < leaf->numleaffaces;i++)
2034                 {
2035                         face = leaf->firstleafface[i];
2036                         if (face->markframe != markframe)
2037                         {
2038                                 face->markframe = markframe;
2039                                 if (!R_CullBox(face->mins, face->maxs))
2040                                         R_Q3BSP_DrawFace(ent, face);
2041                         }
2042                 }
2043         }
2044 }
2045
2046
2047
2048 void R_Q3BSP_Draw(entity_render_t *ent)
2049 {
2050         int i;
2051         q3mface_t *face;
2052         vec3_t modelorg;
2053         model_t *model;
2054         qbyte *pvs;
2055         static int markframe = 0;
2056         R_Mesh_Matrix(&ent->matrix);
2057         model = ent->model;
2058         if (r_drawcollisionbrushes.integer < 2)
2059         {
2060                 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
2061                 if (ent == &cl_entities[0].render && model->brushq3.num_pvsclusters && !r_novis.integer && (pvs = model->brush.GetPVS(model, modelorg)))
2062                         R_Q3BSP_RecursiveWorldNode(ent, model->brushq3.data_nodes, modelorg, pvs, ++markframe);
2063                 else
2064                         for (i = 0, face = model->brushq3.data_thismodel->firstface;i < model->brushq3.data_thismodel->numfaces;i++, face++)
2065                                 R_Q3BSP_DrawFace(ent, face);
2066         }
2067         if (r_drawcollisionbrushes.integer >= 1)
2068         {
2069                 rmeshstate_t m;
2070                 memset(&m, 0, sizeof(m));
2071                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
2072                 GL_DepthMask(false);
2073                 GL_DepthTest(true);
2074                 R_Mesh_State_Texture(&m);
2075                 for (i = 0;i < model->brushq3.data_thismodel->numbrushes;i++)
2076                         if (model->brushq3.data_thismodel->firstbrush[i].colbrushf && model->brushq3.data_thismodel->firstbrush[i].colbrushf->numtriangles)
2077                                 R_DrawCollisionBrush(model->brushq3.data_thismodel->firstbrush[i].colbrushf);
2078         }
2079 }
2080
2081 /*
2082 void R_Q3BSP_DrawFakeShadow(entity_render_t *ent)
2083 {
2084 }
2085 */
2086
2087 void R_Q3BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius)
2088 {
2089         int i;
2090         q3mface_t *face;
2091         vec3_t modelorg, lightmins, lightmaxs;
2092         model_t *model;
2093         float projectdistance;
2094         projectdistance = 1000000000.0f;//lightradius + ent->model->radius;
2095         if (r_drawcollisionbrushes.integer < 2)
2096         {
2097                 model = ent->model;
2098                 R_Mesh_Matrix(&ent->matrix);
2099                 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
2100                 lightmins[0] = relativelightorigin[0] - lightradius;
2101                 lightmins[1] = relativelightorigin[1] - lightradius;
2102                 lightmins[2] = relativelightorigin[2] - lightradius;
2103                 lightmaxs[0] = relativelightorigin[0] + lightradius;
2104                 lightmaxs[1] = relativelightorigin[1] + lightradius;
2105                 lightmaxs[2] = relativelightorigin[2] + lightradius;
2106                 //if (ent == &cl_entities[0].render && model->brushq3.num_pvsclusters && !r_novis.integer && (pvs = model->brush.GetPVS(model, modelorg)))
2107                 //      R_Q3BSP_RecursiveWorldNode(ent, model->brushq3.data_nodes, modelorg, pvs, ++markframe);
2108                 //else
2109                         for (i = 0, face = model->brushq3.data_thismodel->firstface;i < model->brushq3.data_thismodel->numfaces;i++, face++)
2110                                 if (BoxesOverlap(lightmins, lightmaxs, face->mins, face->maxs))
2111                                         R_Shadow_Volume(face->numvertices, face->numtriangles, face->data_vertex3f, face->data_element3i, face->data_neighbor3i, relativelightorigin, lightradius, projectdistance);
2112         }
2113 }
2114
2115 void R_Q3BSP_DrawFaceLight(entity_render_t *ent, q3mface_t *face, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz)
2116 {
2117         if ((face->texture->renderflags & Q3MTEXTURERENDERFLAGS_NODRAW) || !face->numtriangles)
2118                 return;
2119         R_Shadow_DiffuseLighting(face->numvertices, face->numtriangles, face->data_element3i, face->data_vertex3f, face->data_svector3f, face->data_tvector3f, face->data_normal3f, face->data_texcoordtexture2f, relativelightorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, face->texture->skin.base, face->texture->skin.nmap, NULL);
2120         R_Shadow_SpecularLighting(face->numvertices, face->numtriangles, face->data_element3i, face->data_vertex3f, face->data_svector3f, face->data_tvector3f, face->data_normal3f, face->data_texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, face->texture->skin.gloss, face->texture->skin.nmap, NULL);
2121 }
2122
2123 void R_Q3BSP_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz)
2124 {
2125         int i;
2126         q3mface_t *face;
2127         vec3_t modelorg, lightmins, lightmaxs;
2128         model_t *model;
2129         //qbyte *pvs;
2130         //static int markframe = 0;
2131         if (r_drawcollisionbrushes.integer < 2)
2132         {
2133                 model = ent->model;
2134                 R_Mesh_Matrix(&ent->matrix);
2135                 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
2136                 lightmins[0] = relativelightorigin[0] - lightradius;
2137                 lightmins[1] = relativelightorigin[1] - lightradius;
2138                 lightmins[2] = relativelightorigin[2] - lightradius;
2139                 lightmaxs[0] = relativelightorigin[0] + lightradius;
2140                 lightmaxs[1] = relativelightorigin[1] + lightradius;
2141                 lightmaxs[2] = relativelightorigin[2] + lightradius;
2142                 //if (ent == &cl_entities[0].render && model->brushq3.num_pvsclusters && !r_novis.integer && (pvs = model->brush.GetPVS(model, modelorg)))
2143                 //      R_Q3BSP_RecursiveWorldNode(ent, model->brushq3.data_nodes, modelorg, pvs, ++markframe);
2144                 //else
2145                         for (i = 0, face = model->brushq3.data_thismodel->firstface;i < model->brushq3.data_thismodel->numfaces;i++, face++)
2146                                 if ((ent != &cl_entities[0].render || face->visframe == r_framecount) && BoxesOverlap(lightmins, lightmaxs, face->mins, face->maxs))
2147                                         R_Q3BSP_DrawFaceLight(ent, face, relativelightorigin, relativeeyeorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz);
2148         }
2149 }
2150
2151 static void gl_surf_start(void)
2152 {
2153 }
2154
2155 static void gl_surf_shutdown(void)
2156 {
2157 }
2158
2159 static void gl_surf_newmap(void)
2160 {
2161 }
2162
2163 void GL_Surf_Init(void)
2164 {
2165         int i;
2166         dlightdivtable[0] = 4194304;
2167         for (i = 1;i < 32768;i++)
2168                 dlightdivtable[i] = 4194304 / (i << 7);
2169
2170         Cvar_RegisterVariable(&r_ambient);
2171         Cvar_RegisterVariable(&r_vertexsurfaces);
2172         Cvar_RegisterVariable(&r_dlightmap);
2173         Cvar_RegisterVariable(&r_drawportals);
2174         Cvar_RegisterVariable(&r_testvis);
2175         Cvar_RegisterVariable(&r_floatbuildlightmap);
2176         Cvar_RegisterVariable(&r_detailtextures);
2177         Cvar_RegisterVariable(&r_surfaceworldnode);
2178         Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonoffset);
2179
2180         R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);
2181 }
2182