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 cvar_t r_ambient = {0, "r_ambient", "0"};
  28 cvar_t r_drawportals = {0, "r_drawportals", "0"};
  29 cvar_t r_testvis = {0, "r_testvis", "0"};
  30 cvar_t r_detailtextures = {CVAR_SAVE, "r_detailtextures", "1"};
  31 cvar_t r_surfaceworldnode = {0, "r_surfaceworldnode", "0"};
  32 cvar_t r_drawcollisionbrushes_polygonfactor = {0, "r_drawcollisionbrushes_polygonfactor", "-1"};
  33 cvar_t r_drawcollisionbrushes_polygonoffset = {0, "r_drawcollisionbrushes_polygonoffset", "0"};
  34 cvar_t r_q3bsp_renderskydepth = {0, "r_q3bsp_renderskydepth", "0"};
  35 cvar_t gl_lightmaps = {0, "gl_lightmaps", "0"};
  36
  37 // flag arrays used for visibility checking on world model
  38 // (all other entities have no per-surface/per-leaf visibility checks)
  39 // TODO: dynamic resize according to r_refdef.worldmodel->brush.num_clusters
  40 qbyte r_pvsbits[(32768+7)>>3];
  41 // TODO: dynamic resize according to r_refdef.worldmodel->brush.num_leafs
  42 qbyte r_worldleafvisible[32768];
  43 // TODO: dynamic resize according to r_refdef.worldmodel->brush.num_surfaces
  44 qbyte r_worldsurfacevisible[262144];
  45
  46 /*
  47 ===============
  48 R_BuildLightMap
  49
  50 Combine and scale multiple lightmaps into the 8.8 format in blocklights
  51 ===============
  52 */
  53 static void R_BuildLightMap (const entity_render_t *ent, msurface_t *surface)
  54 {
  55         int smax, tmax, i, j, size, size3, maps, stride, l;
  56         unsigned int *bl, scale;
  57         qbyte *lightmap, *out, *stain;
  58         static unsigned int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
  59         static qbyte templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
  60
  61         // update cached lighting info
  62         surface->cached_dlight = 0;
  63
  64         smax = (surface->lightmapinfo->extents[0]>>4)+1;
  65         tmax = (surface->lightmapinfo->extents[1]>>4)+1;
  66         size = smax*tmax;
  67         size3 = size*3;
  68         lightmap = surface->lightmapinfo->samples;
  69
  70 // set to full bright if no light data
  71         bl = intblocklights;
  72         if (!ent->model->brushq1.lightdata)
  73         {
  74                 for (i = 0;i < size3;i++)
  75                         bl[i] = 255*256;
  76         }
  77         else
  78         {
  79 // clear to no light
  80                 memset(bl, 0, size*3*sizeof(unsigned int));
  81
  82 // add all the lightmaps
  83                 if (lightmap)
  84                 {
  85                         bl = intblocklights;
  86                         for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
  87                                 for (scale = d_lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
  88                                         bl[i] += lightmap[i] * scale;
  89                 }
  90         }
  91
  92         stain = surface->lightmapinfo->stainsamples;
  93         bl = intblocklights;
  94         out = templight;
  95         // the >> 16 shift adjusts down 8 bits to account for the stainmap
  96         // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
  97         // be doubled during rendering to achieve 2x overbright
  98         // (0 = 0.0, 128 = 1.0, 256 = 2.0)
  99         if (ent->model->brushq1.lightmaprgba)
 100         {
 101                 stride = (surface->lightmapinfo->lightmaptexturestride - smax) * 4;
 102                 for (i = 0;i < tmax;i++, out += stride)
 103                 {
 104                         for (j = 0;j < smax;j++)
 105                         {
 106                                 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
 107                                 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
 108                                 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
 109                                 *out++ = 255;
 110                         }
 111                 }
 112         }
 113         else
 114         {
 115                 stride = (surface->lightmapinfo->lightmaptexturestride - smax) * 3;
 116                 for (i = 0;i < tmax;i++, out += stride)
 117                 {
 118                         for (j = 0;j < smax;j++)
 119                         {
 120                                 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
 121                                 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
 122                                 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
 123                         }
 124                 }
 125         }
 126
 127         R_UpdateTexture(surface->lightmaptexture, templight);
 128 }
 129
 130 void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
 131 {
 132         float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
 133         msurface_t *surface, *endsurface;
 134         int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
 135         qbyte *bl;
 136         vec3_t impact;
 137
 138         maxdist = radius * radius;
 139         invradius = 1.0f / radius;
 140
 141 loc0:
 142         if (!node->plane)
 143                 return;
 144         ndist = PlaneDiff(origin, node->plane);
 145         if (ndist > radius)
 146         {
 147                 node = node->children[0];
 148                 goto loc0;
 149         }
 150         if (ndist < -radius)
 151         {
 152                 node = node->children[1];
 153                 goto loc0;
 154         }
 155
 156         dist2 = ndist * ndist;
 157         maxdist3 = maxdist - dist2;
 158
 159         if (node->plane->type < 3)
 160         {
 161                 VectorCopy(origin, impact);
 162                 impact[node->plane->type] -= ndist;
 163         }
 164         else
 165         {
 166                 impact[0] = origin[0] - node->plane->normal[0] * ndist;
 167                 impact[1] = origin[1] - node->plane->normal[1] * ndist;
 168                 impact[2] = origin[2] - node->plane->normal[2] * ndist;
 169         }
 170
 171         for (surface = model->brush.data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
 172         {
 173                 if (surface->lightmapinfo->stainsamples)
 174                 {
 175                         smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
 176                         tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
 177
 178                         impacts = DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0];
 179                         impactt = DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1];
 180
 181                         s = bound(0, impacts, smax * 16) - impacts;
 182                         t = bound(0, impactt, tmax * 16) - impactt;
 183                         i = s * s + t * t + dist2;
 184                         if (i > maxdist)
 185                                 continue;
 186
 187                         // reduce calculations
 188                         for (s = 0, i = impacts; s < smax; s++, i -= 16)
 189                                 sdtable[s] = i * i + dist2;
 190
 191                         bl = surface->lightmapinfo->stainsamples;
 192                         smax3 = smax * 3;
 193                         stained = false;
 194
 195                         i = impactt;
 196                         for (t = 0;t < tmax;t++, i -= 16)
 197                         {
 198                                 td = i * i;
 199                                 // make sure some part of it is visible on this line
 200                                 if (td < maxdist3)
 201                                 {
 202                                         maxdist2 = maxdist - td;
 203                                         for (s = 0;s < smax;s++)
 204                                         {
 205                                                 if (sdtable[s] < maxdist2)
 206                                                 {
 207                                                         ratio = lhrandom(0.0f, 1.0f);
 208                                                         a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
 209                                                         if (a >= (1.0f / 64.0f))
 210                                                         {
 211                                                                 if (a > 1)
 212                                                                         a = 1;
 213                                                                 bl[0] = (qbyte) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
 214                                                                 bl[1] = (qbyte) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
 215                                                                 bl[2] = (qbyte) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
 216                                                                 stained = true;
 217                                                         }
 218                                                 }
 219                                                 bl += 3;
 220                                         }
 221                                 }
 222                                 else // skip line
 223                                         bl += smax3;
 224                         }
 225                         // force lightmap upload
 226                         if (stained)
 227                                 surface->cached_dlight = true;
 228                 }
 229         }
 230
 231         if (node->children[0]->plane)
 232         {
 233                 if (node->children[1]->plane)
 234                 {
 235                         R_StainNode(node->children[0], model, origin, radius, fcolor);
 236                         node = node->children[1];
 237                         goto loc0;
 238                 }
 239                 else
 240                 {
 241                         node = node->children[0];
 242                         goto loc0;
 243                 }
 244         }
 245         else if (node->children[1]->plane)
 246         {
 247                 node = node->children[1];
 248                 goto loc0;
 249         }
 250 }
 251
 252 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)
 253 {
 254         int n;
 255         float fcolor[8];
 256         entity_render_t *ent;
 257         model_t *model;
 258         vec3_t org;
 259         if (r_refdef.worldmodel == NULL || !r_refdef.worldmodel->brush.data_nodes || !r_refdef.worldmodel->brushq1.lightdata)
 260                 return;
 261         fcolor[0] = cr1;
 262         fcolor[1] = cg1;
 263         fcolor[2] = cb1;
 264         fcolor[3] = ca1 * (1.0f / 64.0f);
 265         fcolor[4] = cr2 - cr1;
 266         fcolor[5] = cg2 - cg1;
 267         fcolor[6] = cb2 - cb1;
 268         fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
 269
 270         R_StainNode(r_refdef.worldmodel->brush.data_nodes + r_refdef.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.worldmodel, origin, radius, fcolor);
 271
 272         // look for embedded bmodels
 273         for (n = 0;n < cl_num_brushmodel_entities;n++)
 274         {
 275                 ent = &cl_entities[cl_brushmodel_entities[n]].render;
 276                 model = ent->model;
 277                 if (model && model->name[0] == '*')
 278                 {
 279                         Mod_CheckLoaded(model);
 280                         if (model->brush.data_nodes)
 281                         {
 282                                 Matrix4x4_Transform(&ent->inversematrix, origin, org);
 283                                 R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
 284                         }
 285                 }
 286         }
 287 }
 288
 289
 290 /*
 291 =============================================================
 292
 293         BRUSH MODELS
 294
 295 =============================================================
 296 */
 297
 298 static void RSurf_DeformVertices(const entity_render_t *ent, const texture_t *texture, const msurface_t *surface, const vec3_t modelorg)
 299 {
 300         int i, j;
 301         float center[3], forward[3], right[3], up[3], v[4][3];
 302         matrix4x4_t matrix1, imatrix1;
 303         if (texture->textureflags & Q3TEXTUREFLAG_AUTOSPRITE2)
 304         {
 305                 // a single autosprite surface can contain multiple sprites...
 306                 VectorClear(forward);
 307                 VectorClear(right);
 308                 VectorSet(up, 0, 0, 1);
 309                 for (j = 0;j < surface->num_vertices - 3;j += 4)
 310                 {
 311                         VectorClear(center);
 312                         for (i = 0;i < 4;i++)
 313                                 VectorAdd(center, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + (j+i) * 3, center);
 314                         VectorScale(center, 0.25f, center);
 315                         // FIXME: calculate vectors from triangle edges instead of using texture vectors as an easy way out?
 316                         Matrix4x4_FromVectors(&matrix1, (surface->groupmesh->data_normal3f + 3 * surface->num_firstvertex) + j*3, (surface->groupmesh->data_svector3f + 3 * surface->num_firstvertex) + j*3, (surface->groupmesh->data_tvector3f + 3 * surface->num_firstvertex) + j*3, center);
 317                         Matrix4x4_Invert_Simple(&imatrix1, &matrix1);
 318                         for (i = 0;i < 4;i++)
 319                                 Matrix4x4_Transform(&imatrix1, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + (j+i)*3, v[i]);
 320                         forward[0] = modelorg[0] - center[0];
 321                         forward[1] = modelorg[1] - center[1];
 322                         VectorNormalize(forward);
 323                         right[0] = forward[1];
 324                         right[1] = -forward[0];
 325                         for (i = 0;i < 4;i++)
 326                                 VectorMAMAMAM(1, center, v[i][0], forward, v[i][1], right, v[i][2], up, varray_vertex3f + (surface->num_firstvertex+i+j) * 3);
 327                 }
 328         }
 329         else if (texture->textureflags & Q3TEXTUREFLAG_AUTOSPRITE)
 330         {
 331                 Matrix4x4_Transform(&ent->inversematrix, r_viewforward, forward);
 332                 Matrix4x4_Transform(&ent->inversematrix, r_viewright, right);
 333                 Matrix4x4_Transform(&ent->inversematrix, r_viewup, up);
 334                 // a single autosprite surface can contain multiple sprites...
 335                 for (j = 0;j < surface->num_vertices - 3;j += 4)
 336                 {
 337                         VectorClear(center);
 338                         for (i = 0;i < 4;i++)
 339                                 VectorAdd(center, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + (j+i) * 3, center);
 340                         VectorScale(center, 0.25f, center);
 341                         // FIXME: calculate vectors from triangle edges instead of using texture vectors as an easy way out?
 342                         Matrix4x4_FromVectors(&matrix1, (surface->groupmesh->data_normal3f + 3 * surface->num_firstvertex) + j*3, (surface->groupmesh->data_svector3f + 3 * surface->num_firstvertex) + j*3, (surface->groupmesh->data_tvector3f + 3 * surface->num_firstvertex) + j*3, center);
 343                         Matrix4x4_Invert_Simple(&imatrix1, &matrix1);
 344                         for (i = 0;i < 4;i++)
 345                                 Matrix4x4_Transform(&imatrix1, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + (j+i)*3, v[i]);
 346                         for (i = 0;i < 4;i++)
 347                                 VectorMAMAMAM(1, center, v[i][0], forward, v[i][1], right, v[i][2], up, varray_vertex3f + (surface->num_firstvertex+i+j) * 3);
 348                 }
 349         }
 350         else
 351                 memcpy((varray_vertex3f + 3 * surface->num_firstvertex), (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), sizeof(float[3]) * surface->num_vertices);
 352 }
 353
 354 // any sort of deformvertices call is *VERY* rare, so this must be optimized
 355 // to skip deformvertices quickly!
 356 #if 1
 357 #define RSurf_GetVertexPointer(ent, texture, surface, modelorg) ((texture->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) ? (RSurf_DeformVertices(ent, texture, surface, modelorg), varray_vertex3f) : surface->groupmesh->data_vertex3f)
 358 #else
 359 static float *RSurf_GetVertexPointer(const entity_render_t *ent, const texture_t *texture, const msurface_t *surface, const vec3_t modelorg)
 360 {
 361         if (texture->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
 362         {
 363                 RSurf_DeformVertices(ent, texture, surface, modelorg);
 364                 return varray_vertex3f;
 365         }
 366         else
 367                 return surface->groupmesh->data_vertex3f;
 368 }
 369 #endif
 370
 371 void R_UpdateTextureInfo(const entity_render_t *ent, texture_t *t)
 372 {
 373         // we don't need to set currentframe if t->animated is false because
 374         // it was already set up by the texture loader for non-animating
 375         if (t->animated)
 376         {
 377                 t->currentframe = t->anim_frames[ent->frame != 0][(t->anim_total[ent->frame != 0] >= 2) ? ((int)(r_refdef.time * 5.0f) % t->anim_total[ent->frame != 0]) : 0];
 378                 t = t->currentframe;
 379         }
 380         t->currentmaterialflags = t->basematerialflags;
 381         t->currentalpha = ent->alpha;
 382         if (t->basematerialflags & MATERIALFLAG_WATERALPHA)
 383                 t->currentalpha *= r_wateralpha.value;
 384         if (!(ent->flags & RENDER_LIGHT))
 385                 t->currentmaterialflags |= MATERIALFLAG_FULLBRIGHT;
 386         if (ent->effects & EF_ADDITIVE)
 387                 t->currentmaterialflags |= MATERIALFLAG_ADD | MATERIALFLAG_TRANSPARENT;
 388         else if (t->currentalpha < 1)
 389                 t->currentmaterialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
 390 }
 391
 392 matrix4x4_t r_surf_waterscrollmatrix;
 393
 394 void R_UpdateAllTextureInfo(entity_render_t *ent)
 395 {
 396         int i;
 397         Matrix4x4_CreateTranslate(&r_surf_waterscrollmatrix, sin(r_refdef.time) * 0.025 * r_waterscroll.value, sin(r_refdef.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
 398         if (ent->model)
 399                 for (i = 0;i < ent->model->brush.num_textures;i++)
 400                         R_UpdateTextureInfo(ent, ent->model->brush.data_textures + i);
 401 }
 402
 403 static void R_DrawSurfaceList(const entity_render_t *ent, texture_t *texture, int texturenumsurfaces, const msurface_t **texturesurfacelist, const vec3_t modelorg)
 404 {
 405         int i;
 406         int texturesurfaceindex;
 407         const float *v, *vertex3f;
 408         float *c;
 409         float diff[3];
 410         float f, r, g, b, a, base, colorscale;
 411         const msurface_t *surface;
 412         qboolean dolightmap;
 413         qboolean dobase;
 414         qboolean doambient;
 415         qboolean dodetail;
 416         qboolean doglow;
 417         qboolean dofogpass;
 418         qboolean fogallpasses;
 419         qboolean waterscrolling;
 420         surfmesh_t *groupmesh;
 421         rtexture_t *lightmaptexture;
 422         rmeshstate_t m;
 423         texture = texture->currentframe;
 424         if (texture->currentmaterialflags & MATERIALFLAG_NODRAW)
 425                 return;
 426         c_faces += texturenumsurfaces;
 427         // gl_lightmaps debugging mode skips normal texturing
 428         if (gl_lightmaps.integer)
 429         {
 430                 GL_BlendFunc(GL_ONE, GL_ZERO);
 431                 GL_DepthMask(true);
 432                 GL_DepthTest(true);
 433                 qglDisable(GL_CULL_FACE);
 434                 GL_Color(1, 1, 1, 1);
 435                 memset(&m, 0, sizeof(m));
 436                 R_Mesh_State(&m);
 437                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 438                 {
 439                         surface = texturesurfacelist[texturesurfaceindex];
 440                         R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 441                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordlightmap2f);
 442                         R_Mesh_ColorPointer(surface->lightmaptexture ? NULL : surface->groupmesh->data_lightmapcolor4f);
 443                         R_Mesh_VertexPointer(surface->groupmesh->data_vertex3f);
 444                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 445                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 446                         GL_LockArrays(0, 0);
 447                 }
 448                 qglEnable(GL_CULL_FACE);
 449                 return;
 450         }
 451         GL_DepthTest(!(texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST));
 452         GL_DepthMask(!(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT));
 453         if (texture->currentmaterialflags & MATERIALFLAG_ADD)
 454                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 455         else if (texture->currentmaterialflags & MATERIALFLAG_ALPHA)
 456                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 457         else
 458                 GL_BlendFunc(GL_ONE, GL_ZERO);
 459         // water waterscrolling in texture matrix
 460         waterscrolling = (texture->currentmaterialflags & MATERIALFLAG_WATER) && r_waterscroll.value != 0;
 461         if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
 462                 qglDisable(GL_CULL_FACE);
 463         if (texture->currentmaterialflags & MATERIALFLAG_SKY)
 464         {
 465                 if (skyrendernow)
 466                 {
 467                         skyrendernow = false;
 468                         if (skyrendermasked)
 469                                 R_Sky();
 470                 }
 471                 // LordHavoc: HalfLife maps have freaky skypolys...
 472                 if (!ent->model->brush.ishlbsp)
 473                 {
 474                         R_Mesh_Matrix(&ent->matrix);
 475                         GL_Color(fogcolor[0], fogcolor[1], fogcolor[2], 1);
 476                         if (skyrendermasked)
 477                         {
 478                                 // depth-only (masking)
 479                                 GL_ColorMask(0,0,0,0);
 480                                 // just to make sure that braindead drivers don't draw anything
 481                                 // despite that colormask...
 482                                 GL_BlendFunc(GL_ZERO, GL_ONE);
 483                         }
 484                         else
 485                         {
 486                                 // fog sky
 487                                 GL_BlendFunc(GL_ONE, GL_ZERO);
 488                         }
 489                         GL_DepthMask(true);
 490                         GL_DepthTest(true);
 491                         memset(&m, 0, sizeof(m));
 492                         R_Mesh_State(&m);
 493                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 494                         {
 495                                 surface = texturesurfacelist[texturesurfaceindex];
 496                                 R_Mesh_VertexPointer(surface->groupmesh->data_vertex3f);
 497                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 498                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 499                                 GL_LockArrays(0, 0);
 500                         }
 501                         GL_ColorMask(r_refdef.colormask[0], r_refdef.colormask[1], r_refdef.colormask[2], 1);
 502                 }
 503         }
 504         else if ((texture->currentmaterialflags & MATERIALFLAG_WATER) && r_watershader.value && gl_textureshader && !texture->skin.glow && !fogenabled && ent->colormod[0] == 1 && ent->colormod[1] == 1 && ent->colormod[2] == 1)
 505         {
 506                 // NVIDIA Geforce3 distortion texture shader on water
 507                 float args[4] = {0.05f,0,0,0.04f};
 508                 memset(&m, 0, sizeof(m));
 509                 m.tex[0] = R_GetTexture(mod_shared_distorttexture[(int)(r_refdef.time * 16)&63]);
 510                 m.tex[1] = R_GetTexture(texture->skin.base);
 511                 m.texcombinergb[0] = GL_REPLACE;
 512                 m.texcombinergb[1] = GL_REPLACE;
 513                 Matrix4x4_CreateFromQuakeEntity(&m.texmatrix[0], 0, 0, 0, 0, 0, 0, r_watershader.value);
 514                 m.texmatrix[1] = r_surf_waterscrollmatrix;
 515                 R_Mesh_State(&m);
 516
 517                 GL_Color(1, 1, 1, texture->currentalpha);
 518                 GL_ActiveTexture(0);
 519                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
 520                 GL_ActiveTexture(1);
 521                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_OFFSET_TEXTURE_2D_NV);
 522                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB);
 523                 qglTexEnvfv(GL_TEXTURE_SHADER_NV, GL_OFFSET_TEXTURE_MATRIX_NV, &args[0]);
 524                 qglEnable(GL_TEXTURE_SHADER_NV);
 525
 526                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 527                 {
 528                         surface = texturesurfacelist[texturesurfaceindex];
 529                         R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
 530                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
 531                         R_Mesh_TexCoordPointer(1, 2, surface->groupmesh->data_texcoordtexture2f);
 532                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 533                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 534                         GL_LockArrays(0, 0);
 535                 }
 536
 537                 qglDisable(GL_TEXTURE_SHADER_NV);
 538                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
 539                 GL_ActiveTexture(0);
 540         }
 541         else if (texture->currentmaterialflags & (MATERIALFLAG_WATER | MATERIALFLAG_WALL))
 542         {
 543                 // normal surface (wall or water)
 544                 dobase = true;
 545                 dolightmap = !(texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT);
 546                 doambient = r_ambient.value >= (1/64.0f);
 547                 dodetail = r_detailtextures.integer && texture->skin.detail != NULL && !(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT);
 548                 doglow = texture->skin.glow != NULL;
 549                 dofogpass = fogenabled && !(texture->currentmaterialflags & MATERIALFLAG_ADD);
 550                 fogallpasses = fogenabled && !(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT);
 551                 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
 552                 {
 553                         if (dobase && dolightmap && gl_combine.integer)
 554                         {
 555                                 dobase = false;
 556                                 memset(&m, 0, sizeof(m));
 557                                 m.tex[1] = R_GetTexture(texture->skin.base);
 558                                 if (waterscrolling)
 559                                         m.texmatrix[1] = r_surf_waterscrollmatrix;
 560                                 m.texrgbscale[1] = 2;
 561                                 m.pointer_color = varray_color4f;
 562                                 R_Mesh_State(&m);
 563                                 colorscale = 1;
 564                                 r = ent->colormod[0] * colorscale;
 565                                 g = ent->colormod[1] * colorscale;
 566                                 b = ent->colormod[2] * colorscale;
 567                                 a = texture->currentalpha;
 568                                 base = r_ambient.value * (1.0f / 64.0f);
 569                                 // q3bsp has no lightmap updates, so the lightstylevalue that
 570                                 // would normally be baked into the lightmaptexture must be
 571                                 // applied to the color
 572                                 if (ent->model->brushq1.lightdata)
 573                                 {
 574                                         float scale = d_lightstylevalue[0] * (1.0f / 128.0f);
 575                                         r *= scale;
 576                                         g *= scale;
 577                                         b *= scale;
 578                                 }
 579                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 580                                 {
 581                                         surface = texturesurfacelist[texturesurfaceindex];
 582                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
 583                                         R_Mesh_VertexPointer(vertex3f);
 584                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordlightmap2f);
 585                                         R_Mesh_TexCoordPointer(1, 2, surface->groupmesh->data_texcoordtexture2f);
 586                                         if (surface->lightmaptexture)
 587                                         {
 588                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 589                                                 if (fogallpasses)
 590                                                 {
 591                                                         R_Mesh_ColorPointer(varray_color4f);
 592                                                         for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
 593                                                         {
 594                                                                 VectorSubtract(v, modelorg, diff);
 595                                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
 596                                                                 c[0] = f * r;
 597                                                                 c[1] = f * g;
 598                                                                 c[2] = f * b;
 599                                                                 c[3] = a;
 600                                                         }
 601                                                 }
 602                                                 else
 603                                                 {
 604                                                         R_Mesh_ColorPointer(NULL);
 605                                                         GL_Color(r, g, b, a);
 606                                                 }
 607                                         }
 608                                         else
 609                                         {
 610                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 611                                                 R_Mesh_ColorPointer(varray_color4f);
 612                                                 if (!surface->lightmaptexture)
 613                                                 {
 614                                                         for (i = 0, c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, c += 4)
 615                                                         {
 616                                                                 c[0] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+0] * r;
 617                                                                 c[1] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+1] * g;
 618                                                                 c[2] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+2] * b;
 619                                                                 c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3] * a;
 620                                                         }
 621                                                         if (fogallpasses)
 622                                                         {
 623                                                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
 624                                                                 {
 625                                                                         VectorSubtract(v, modelorg, diff);
 626                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 627                                                                         VectorScale(c, f, c);
 628                                                                 }
 629                                                         }
 630                                                 }
 631                                                 else
 632                                                 {
 633                                                         R_Mesh_ColorPointer(NULL);
 634                                                         GL_Color(0, 0, 0, a);
 635                                                 }
 636                                         }
 637                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 638                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 639                                         GL_LockArrays(0, 0);
 640                                 }
 641                         }
 642                         if (dobase)
 643                         {
 644                                 dobase = false;
 645                                 memset(&m, 0, sizeof(m));
 646                                 m.tex[0] = R_GetTexture(texture->skin.base);
 647                                 if (waterscrolling)
 648                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
 649                                 m.pointer_color = varray_color4f;
 650                                 colorscale = 1;
 651                                 if (gl_combine.integer)
 652                                 {
 653                                         m.texrgbscale[0] = 4;
 654                                         colorscale *= 0.25f;
 655                                 }
 656                                 R_Mesh_State(&m);
 657                                 r = ent->colormod[0] * colorscale;
 658                                 g = ent->colormod[1] * colorscale;
 659                                 b = ent->colormod[2] * colorscale;
 660                                 a = texture->currentalpha;
 661                                 if (dolightmap)
 662                                 {
 663                                         // q3bsp has no lightmap updates, so the lightstylevalue that
 664                                         // would normally be baked into the lightmaptexture must be
 665                                         // applied to the color
 666                                         if (!ent->model->brushq1.lightdata)
 667                                         {
 668                                                 float scale = d_lightstylevalue[0] * (1.0f / 128.0f);
 669                                                 r *= scale;
 670                                                 g *= scale;
 671                                                 b *= scale;
 672                                         }
 673                                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 674                                         {
 675                                                 surface = texturesurfacelist[texturesurfaceindex];
 676                                                 vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
 677                                                 R_Mesh_VertexPointer(vertex3f);
 678                                                 R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
 679                                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
 680                                                 {
 681                                                         c[0] = 0;
 682                                                         c[1] = 0;
 683                                                         c[2] = 0;
 684                                                         if (!surface->lightmapinfo)
 685                                                                 VectorCopy((surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex) + i*4, c);
 686                                                         else //if (surface->lightmapinfo)
 687                                                         {
 688                                                                 const qbyte *lm = surface->lightmapinfo->samples + (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i];
 689                                                                 float scale = d_lightstylevalue[surface->lightmapinfo->styles[0]] * (1.0f / 32768.0f);
 690                                                                 VectorMA(c, scale, lm, c);
 691                                                                 if (surface->lightmapinfo->styles[1] != 255)
 692                                                                 {
 693                                                                         int size3 = ((surface->lightmapinfo->extents[0]>>4)+1)*((surface->lightmapinfo->extents[1]>>4)+1)*3;
 694                                                                         lm += size3;
 695                                                                         scale = d_lightstylevalue[surface->lightmapinfo->styles[1]] * (1.0f / 32768.0f);
 696                                                                         VectorMA(c, scale, lm, c);
 697                                                                         if (surface->lightmapinfo->styles[2] != 255)
 698                                                                         {
 699                                                                                 lm += size3;
 700                                                                                 scale = d_lightstylevalue[surface->lightmapinfo->styles[2]] * (1.0f / 32768.0f);
 701                                                                                 VectorMA(c, scale, lm, c);
 702                                                                                 if (surface->lightmapinfo->styles[3] != 255)
 703                                                                                 {
 704                                                                                         lm += size3;
 705                                                                                         scale = d_lightstylevalue[surface->lightmapinfo->styles[3]] * (1.0f / 32768.0f);
 706                                                                                         VectorMA(c, scale, lm, c);
 707                                                                                 }
 708                                                                         }
 709                                                                 }
 710                                                         }
 711                                                         c[0] *= r;
 712                                                         c[1] *= g;
 713                                                         c[2] *= b;
 714                                                         if (fogallpasses)
 715                                                         {
 716                                                                 VectorSubtract(v, modelorg, diff);
 717                                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
 718                                                                 VectorScale(c, f, c);
 719                                                         }
 720                                                         if (!surface->lightmapinfo && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 721                                                                 c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3] * a;
 722                                                         else
 723                                                                 c[3] = a;
 724                                                 }
 725                                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 726                                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 727                                                 GL_LockArrays(0, 0);
 728                                         }
 729                                 }
 730                                 else
 731                                 {
 732                                         if (fogallpasses)
 733                                         {
 734                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 735                                                 {
 736                                                         surface = texturesurfacelist[texturesurfaceindex];
 737                                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
 738                                                         R_Mesh_VertexPointer(vertex3f);
 739                                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
 740                                                         if (!surface->lightmapinfo && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 741                                                         {
 742                                                                 R_Mesh_ColorPointer(varray_color4f);
 743                                                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
 744                                                                 {
 745                                                                         VectorSubtract(v, modelorg, diff);
 746                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 747                                                                         c[0] = r * f;
 748                                                                         c[1] = g * f;
 749                                                                         c[2] = b * f;
 750                                                                         c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3] * a;
 751                                                                 }
 752                                                         }
 753                                                         else
 754                                                         {
 755                                                                 R_Mesh_ColorPointer(varray_color4f);
 756                                                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
 757                                                                 {
 758                                                                         VectorSubtract(v, modelorg, diff);
 759                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 760                                                                         c[0] = r * f;
 761                                                                         c[1] = g * f;
 762                                                                         c[2] = b * f;
 763                                                                         c[3] = a;
 764                                                                 }
 765                                                         }
 766                                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 767                                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 768                                                         GL_LockArrays(0, 0);
 769                                                 }
 770                                         }
 771                                         else
 772                                         {
 773                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 774                                                 {
 775                                                         surface = texturesurfacelist[texturesurfaceindex];
 776                                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
 777                                                         R_Mesh_VertexPointer(vertex3f);
 778                                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
 779                                                         if (!surface->lightmaptexture && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 780                                                         {
 781                                                                 R_Mesh_ColorPointer(varray_color4f);
 782                                                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
 783                                                                 {
 784                                                                         c[0] = r;
 785                                                                         c[1] = g;
 786                                                                         c[2] = b;
 787                                                                         c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3] * a;
 788                                                                 }
 789                                                         }
 790                                                         else
 791                                                         {
 792                                                                 R_Mesh_ColorPointer(NULL);
 793                                                                 GL_Color(r, g, b, a);
 794                                                         }
 795                                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 796                                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 797                                                         GL_LockArrays(0, 0);
 798                                                 }
 799                                         }
 800                                 }
 801                         }
 802                 }
 803                 else
 804                 {
 805                         if (!dolightmap && dobase)
 806                         {
 807                                 dolightmap = false;
 808                                 dobase = false;
 809                                 GL_Color(ent->colormod[0], ent->colormod[1], ent->colormod[2], 1);
 810                                 memset(&m, 0, sizeof(m));
 811                                 m.tex[0] = R_GetTexture(texture->skin.base);
 812                                 if (waterscrolling)
 813                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
 814                                 R_Mesh_State(&m);
 815                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 816                                 {
 817                                         surface = texturesurfacelist[texturesurfaceindex];
 818                                         R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
 819                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
 820                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 821                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 822                                         GL_LockArrays(0, 0);
 823                                 }
 824                         }
 825                         if (r_lightmapintensity <= 0 && dolightmap && dobase)
 826                         {
 827                                 dolightmap = false;
 828                                 dobase = false;
 829                                 GL_Color(0, 0, 0, 1);
 830                                 memset(&m, 0, sizeof(m));
 831                                 R_Mesh_State(&m);
 832                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 833                                 {
 834                                         surface = texturesurfacelist[texturesurfaceindex];
 835                                         R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
 836                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 837                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 838                                         GL_LockArrays(0, 0);
 839                                 }
 840                         }
 841                         if (r_textureunits.integer >= 2 && gl_combine.integer && dolightmap && dobase)
 842                         {
 843                                 // dualtexture combine
 844                                 GL_BlendFunc(GL_ONE, GL_ZERO);
 845                                 GL_DepthMask(true);
 846                                 dolightmap = false;
 847                                 dobase = false;
 848                                 memset(&m, 0, sizeof(m));
 849                                 m.tex[1] = R_GetTexture(texture->skin.base);
 850                                 if (waterscrolling)
 851                                         m.texmatrix[1] = r_surf_waterscrollmatrix;
 852                                 m.texrgbscale[1] = 2;
 853                                 R_Mesh_State(&m);
 854                                 r = ent->colormod[0] * r_lightmapintensity;
 855                                 g = ent->colormod[1] * r_lightmapintensity;
 856                                 b = ent->colormod[2] * r_lightmapintensity;
 857                                 GL_Color(r, g, b, 1);
 858                                 if (texture->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
 859                                 {
 860                                         R_Mesh_VertexPointer(varray_vertex3f);
 861                                         if (r == 1 && g == 1 && b == 1)
 862                                         {
 863                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 864                                                 {
 865                                                         surface = texturesurfacelist[texturesurfaceindex];
 866                                                         RSurf_DeformVertices(ent, texture, surface, modelorg);
 867                                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordlightmap2f);
 868                                                         R_Mesh_TexCoordPointer(1, 2, surface->groupmesh->data_texcoordtexture2f);
 869                                                         if (surface->lightmaptexture)
 870                                                         {
 871                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 872                                                                 R_Mesh_ColorPointer(NULL);
 873                                                         }
 874                                                         else //if (r == 1 && g == 1 && b == 1)
 875                                                         {
 876                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 877                                                                 R_Mesh_ColorPointer(surface->groupmesh->data_lightmapcolor4f);
 878                                                         }
 879                                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 880                                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 881                                                         GL_LockArrays(0, 0);
 882                                                 }
 883                                         }
 884                                         else
 885                                         {
 886                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 887                                                 {
 888                                                         surface = texturesurfacelist[texturesurfaceindex];
 889                                                         RSurf_DeformVertices(ent, texture, surface, modelorg);
 890                                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordlightmap2f);
 891                                                         R_Mesh_TexCoordPointer(1, 2, surface->groupmesh->data_texcoordtexture2f);
 892                                                         if (surface->lightmaptexture)
 893                                                         {
 894                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 895                                                                 R_Mesh_ColorPointer(NULL);
 896                                                         }
 897                                                         else
 898                                                         {
 899                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 900                                                                 R_Mesh_ColorPointer(varray_color4f);
 901                                                                 for (i = 0, c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, c += 4)
 902                                                                 {
 903                                                                         c[0] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+0] * r;
 904                                                                         c[1] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+1] * g;
 905                                                                         c[2] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+2] * b;
 906                                                                         c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3];
 907                                                                 }
 908                                                         }
 909                                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 910                                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 911                                                         GL_LockArrays(0, 0);
 912                                                 }
 913                                         }
 914                                 }
 915                                 else
 916                                 {
 917                                         if (r == 1 && g == 1 && b == 1)
 918                                         {
 919 #if 0
 920                                                 // experimental direct state calls for measuring
 921                                                 // R_Mesh_ call overhead, do not use!
 922                                                 R_Mesh_VertexPointer(varray_vertex3f);
 923                                                 R_Mesh_TexCoordPointer(0, 2, varray_texcoord2f[0]);
 924                                                 R_Mesh_TexCoordPointer(1, 2, varray_texcoord2f[1]);
 925                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 926                                                 R_Mesh_ColorPointer(varray_color4f);
 927                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 928                                                 {
 929                                                         surface = texturesurfacelist[texturesurfaceindex];
 930                                                         qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), surface->groupmesh->data_vertex3f);
 931                                                         qglClientActiveTexture(GL_TEXTURE0_ARB);
 932                                                         qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), surface->groupmesh->data_texcoordlightmap2f);
 933                                                         qglClientActiveTexture(GL_TEXTURE1_ARB);
 934                                                         qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), surface->groupmesh->data_texcoordtexture2f);
 935                                                         if (surface->lightmaptexture)
 936                                                         {
 937                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 938                                                                 qglDisableClientState(GL_COLOR_ARRAY);
 939                                                                 qglColor4f(r, g, b, 1);
 940                                                         }
 941                                                         else //if (r == 1 && g == 1 && b == 1)
 942                                                         {
 943                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 944                                                                 qglEnableClientState(GL_COLOR_ARRAY);
 945                                                                 qglColorPointer(4, GL_FLOAT, sizeof(float[4]), surface->groupmesh->data_lightmapcolor4f);
 946                                                         }
 947                                                         qglLockArraysEXT(0, surface->num_vertices);
 948                                                         qglDrawRangeElements(GL_TRIANGLES, surface->num_firstvertex, surface->num_firstvertex + surface->num_vertices, surface->num_triangles * 3, GL_UNSIGNED_INT, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 949                                                         qglUnlockArraysEXT();
 950                                                 }
 951 #else
 952                                                 groupmesh = NULL;
 953                                                 lightmaptexture = NULL;
 954                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 955                                                 {
 956                                                         surface = texturesurfacelist[texturesurfaceindex];
 957                                                         if (groupmesh != surface->groupmesh)
 958                                                         {
 959                                                                 groupmesh = surface->groupmesh;
 960                                                                 R_Mesh_VertexPointer(groupmesh->data_vertex3f);
 961                                                                 R_Mesh_TexCoordPointer(0, 2, groupmesh->data_texcoordlightmap2f);
 962                                                                 R_Mesh_TexCoordPointer(1, 2, groupmesh->data_texcoordtexture2f);
 963                                                                 if (!lightmaptexture)
 964                                                                         R_Mesh_ColorPointer(groupmesh->data_lightmapcolor4f);
 965                                                         }
 966                                                         if (lightmaptexture != surface->lightmaptexture)
 967                                                         {
 968                                                                 lightmaptexture = surface->lightmaptexture;
 969                                                                 if (lightmaptexture)
 970                                                                 {
 971                                                                         R_Mesh_TexBind(0, R_GetTexture(lightmaptexture));
 972                                                                         R_Mesh_ColorPointer(NULL);
 973                                                                 }
 974                                                                 else //if (r == 1 && g == 1 && b == 1)
 975                                                                 {
 976                                                                         R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 977                                                                         R_Mesh_ColorPointer(surface->groupmesh->data_lightmapcolor4f);
 978                                                                 }
 979                                                         }
 980                                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
 981                                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
 982                                                         GL_LockArrays(0, 0);
 983                                                 }
 984 #endif
 985                                         }
 986                                         else
 987                                         {
 988                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 989                                                 {
 990                                                         surface = texturesurfacelist[texturesurfaceindex];
 991                                                         R_Mesh_VertexPointer(surface->groupmesh->data_vertex3f);
 992                                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordlightmap2f);
 993                                                         R_Mesh_TexCoordPointer(1, 2, surface->groupmesh->data_texcoordtexture2f);
 994                                                         if (surface->lightmaptexture)
 995                                                         {
 996                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 997                                                                 R_Mesh_ColorPointer(NULL);
 998                                                         }
 999                                                         else
1000                                                         {
1001                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
1002                                                                 R_Mesh_ColorPointer(varray_color4f);
1003                                                                 for (i = 0, c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, c += 4)
1004                                                                 {
1005                                                                         c[0] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+0] * r;
1006                                                                         c[1] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+1] * g;
1007                                                                         c[2] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+2] * b;
1008                                                                         c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3];
1009                                                                 }
1010                                                         }
1011                                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1012                                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1013                                                         GL_LockArrays(0, 0);
1014                                                 }
1015                                         }
1016                                 }
1017                         }
1018                         // single texture
1019                         if (dolightmap)
1020                         {
1021                                 GL_BlendFunc(GL_ONE, GL_ZERO);
1022                                 GL_DepthMask(true);
1023                                 GL_Color(1, 1, 1, 1);
1024                                 memset(&m, 0, sizeof(m));
1025                                 R_Mesh_State(&m);
1026                                 if (texture->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
1027                                 {
1028                                         R_Mesh_VertexPointer(varray_vertex3f);
1029                                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1030                                         {
1031                                                 surface = texturesurfacelist[texturesurfaceindex];
1032                                                 RSurf_DeformVertices(ent, texture, surface, modelorg);
1033                                                 R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordlightmap2f);
1034                                                 if (surface->lightmaptexture)
1035                                                 {
1036                                                         R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
1037                                                         R_Mesh_ColorPointer(NULL);
1038                                                 }
1039                                                 else //if (r == 1 && g == 1 && b == 1)
1040                                                 {
1041                                                         R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
1042                                                         R_Mesh_ColorPointer(surface->groupmesh->data_lightmapcolor4f);
1043                                                 }
1044                                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1045                                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1046                                                 GL_LockArrays(0, 0);
1047                                         }
1048                                 }
1049                                 else
1050                                 {
1051                                         groupmesh = NULL;
1052                                         lightmaptexture = NULL;
1053                                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1054                                         {
1055                                                 surface = texturesurfacelist[texturesurfaceindex];
1056                                                 if (groupmesh != surface->groupmesh)
1057                                                 {
1058                                                         groupmesh = surface->groupmesh;
1059                                                         R_Mesh_VertexPointer(groupmesh->data_vertex3f);
1060                                                         R_Mesh_TexCoordPointer(0, 2, groupmesh->data_texcoordlightmap2f);
1061                                                         if (!lightmaptexture)
1062                                                                 R_Mesh_ColorPointer(groupmesh->data_lightmapcolor4f);
1063                                                 }
1064                                                 if (lightmaptexture != surface->lightmaptexture)
1065                                                 {
1066                                                         lightmaptexture = surface->lightmaptexture;
1067                                                         if (lightmaptexture)
1068                                                         {
1069                                                                 R_Mesh_TexBind(0, R_GetTexture(lightmaptexture));
1070                                                                 R_Mesh_ColorPointer(NULL);
1071                                                         }
1072                                                         else //if (r == 1 && g == 1 && b == 1)
1073                                                         {
1074                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
1075                                                                 R_Mesh_ColorPointer(surface->groupmesh->data_lightmapcolor4f);
1076                                                         }
1077                                                 }
1078                                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1079                                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1080                                                 GL_LockArrays(0, 0);
1081                                         }
1082                                 }
1083                         }
1084                         if (dobase)
1085                         {
1086                                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
1087                                 GL_DepthMask(false);
1088                                 GL_Color(r_lightmapintensity * ent->colormod[0], r_lightmapintensity * ent->colormod[1], r_lightmapintensity * ent->colormod[2], 1);
1089                                 memset(&m, 0, sizeof(m));
1090                                 m.tex[0] = R_GetTexture(texture->skin.base);
1091                                 if (waterscrolling)
1092                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
1093                                 R_Mesh_State(&m);
1094                                 if (texture->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
1095                                 {
1096                                         R_Mesh_VertexPointer(varray_vertex3f);
1097                                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1098                                         {
1099                                                 surface = texturesurfacelist[texturesurfaceindex];
1100                                                 RSurf_DeformVertices(ent, texture, surface, modelorg);
1101                                                 R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
1102                                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1103                                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1104                                                 GL_LockArrays(0, 0);
1105                                         }
1106                                 }
1107                                 else
1108                                 {
1109                                         groupmesh = NULL;
1110                                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1111                                         {
1112                                                 surface = texturesurfacelist[texturesurfaceindex];
1113                                                 if (groupmesh != surface->groupmesh)
1114                                                 {
1115                                                         groupmesh = surface->groupmesh;
1116                                                         R_Mesh_VertexPointer(groupmesh->data_vertex3f);
1117                                                         R_Mesh_TexCoordPointer(0, 2, groupmesh->data_texcoordtexture2f);
1118                                                 }
1119                                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1120                                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1121                                                 GL_LockArrays(0, 0);
1122                                         }
1123                                 }
1124                         }
1125                 }
1126                 if (doambient)
1127                 {
1128                         doambient = false;
1129                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1130                         GL_DepthMask(false);
1131                         memset(&m, 0, sizeof(m));
1132                         m.tex[0] = R_GetTexture(texture->skin.base);
1133                         if (waterscrolling)
1134                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
1135                         m.pointer_color = varray_color4f;
1136                         colorscale = 1;
1137                         if (gl_combine.integer)
1138                         {
1139                                 m.texrgbscale[0] = 4;
1140                                 colorscale *= 0.25f;
1141                         }
1142                         R_Mesh_State(&m);
1143                         base = r_ambient.value * (1.0f / 64.0f);
1144                         r = ent->colormod[0] * colorscale * base;
1145                         g = ent->colormod[1] * colorscale * base;
1146                         b = ent->colormod[2] * colorscale * base;
1147                         a = texture->currentalpha;
1148                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1149                         {
1150                                 surface = texturesurfacelist[texturesurfaceindex];
1151                                 vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
1152                                 R_Mesh_VertexPointer(vertex3f);
1153                                 R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
1154                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
1155                                 {
1156                                         c[0] = r;
1157                                         c[1] = g;
1158                                         c[2] = b;
1159                                         if (fogallpasses)
1160                                         {
1161                                                 VectorSubtract(v, modelorg, diff);
1162                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
1163                                                 VectorScale(c, f, c);
1164                                         }
1165                                         if (!surface->lightmaptexture && surface->groupmesh->data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1166                                                 c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3] * a;
1167                                         else
1168                                                 c[3] = a;
1169                                 }
1170                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1171                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1172                                 GL_LockArrays(0, 0);
1173                         }
1174                 }
1175                 if (dodetail)
1176                 {
1177                         GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
1178                         GL_DepthMask(false);
1179                         GL_Color(1, 1, 1, 1);
1180                         memset(&m, 0, sizeof(m));
1181                         m.tex[0] = R_GetTexture(texture->skin.detail);
1182                         R_Mesh_State(&m);
1183                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1184                         {
1185                                 surface = texturesurfacelist[texturesurfaceindex];
1186                                 R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
1187                                 R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoorddetail2f);
1188                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1189                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1190                                 GL_LockArrays(0, 0);
1191                         }
1192                 }
1193                 if (doglow)
1194                 {
1195                         // if glow was not already done using multitexture, do it now.
1196                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1197                         GL_DepthMask(false);
1198                         memset(&m, 0, sizeof(m));
1199                         m.tex[0] = R_GetTexture(texture->skin.glow);
1200                         if (waterscrolling)
1201                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
1202                         m.pointer_color = varray_color4f;
1203                         R_Mesh_State(&m);
1204                         colorscale = 1;
1205                         r = ent->colormod[0] * colorscale;
1206                         g = ent->colormod[1] * colorscale;
1207                         b = ent->colormod[2] * colorscale;
1208                         a = texture->currentalpha;
1209                         if (fogallpasses)
1210                         {
1211                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1212                                 {
1213                                         surface = texturesurfacelist[texturesurfaceindex];
1214                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
1215                                         R_Mesh_VertexPointer(vertex3f);
1216                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
1217                                         R_Mesh_ColorPointer(varray_color4f);
1218                                         if (!surface->lightmaptexture && surface->groupmesh->data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1219                                         {
1220                                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
1221                                                 {
1222                                                         VectorSubtract(v, modelorg, diff);
1223                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
1224                                                         c[0] = f * r;
1225                                                         c[1] = f * g;
1226                                                         c[2] = f * b;
1227                                                         c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3] * a;
1228                                                 }
1229                                         }
1230                                         else
1231                                         {
1232                                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
1233                                                 {
1234                                                         VectorSubtract(v, modelorg, diff);
1235                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
1236                                                         c[0] = f * r;
1237                                                         c[1] = f * g;
1238                                                         c[2] = f * b;
1239                                                         c[3] = a;
1240                                                 }
1241                                         }
1242                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1243                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1244                                         GL_LockArrays(0, 0);
1245                                 }
1246                         }
1247                         else
1248                         {
1249                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1250                                 {
1251                                         surface = texturesurfacelist[texturesurfaceindex];
1252                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
1253                                         R_Mesh_VertexPointer(vertex3f);
1254                                         R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
1255                                         if (!surface->lightmaptexture && surface->groupmesh->data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1256                                         {
1257                                                 R_Mesh_ColorPointer(varray_color4f);
1258                                                 for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
1259                                                 {
1260                                                         c[0] = r;
1261                                                         c[1] = g;
1262                                                         c[2] = b;
1263                                                         c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3] * a;
1264                                                 }
1265                                         }
1266                                         else
1267                                         {
1268                                                 R_Mesh_ColorPointer(NULL);
1269                                                 GL_Color(r, g, b, a);
1270                                         }
1271                                         GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1272                                         R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1273                                         GL_LockArrays(0, 0);
1274                                 }
1275                         }
1276                 }
1277                 if (dofogpass)
1278                 {
1279                         // if this is opaque use alpha blend which will darken the earlier
1280                         // passes cheaply.
1281                         //
1282                         // if this is an alpha blended material, all the earlier passes
1283                         // were darkened by fog already, so we only need to add the fog
1284                         // color ontop through the fog mask texture
1285                         //
1286                         // if this is an additive blended material, all the earlier passes
1287                         // were darkened by fog already, and we should not add fog color
1288                         // (because the background was not darkened, there is no fog color
1289                         // that was lost behind it).
1290                         if (!fogallpasses)
1291                                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1292                         else
1293                                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1294                         GL_DepthMask(false);
1295                         memset(&m, 0, sizeof(m));
1296                         m.tex[0] = R_GetTexture(texture->skin.fog);
1297                         if (waterscrolling)
1298                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
1299                         R_Mesh_State(&m);
1300                         r = fogcolor[0];
1301                         g = fogcolor[1];
1302                         b = fogcolor[2];
1303                         a = texture->currentalpha;
1304                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1305                         {
1306                                 surface = texturesurfacelist[texturesurfaceindex];
1307                                 vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
1308                                 R_Mesh_VertexPointer(vertex3f);
1309                                 R_Mesh_TexCoordPointer(0, 2, surface->groupmesh->data_texcoordtexture2f);
1310                                 R_Mesh_ColorPointer(varray_color4f);
1311                                 //RSurf_FogPassColors_Vertex3f_Color4f((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], texture->currentalpha, 1, surface->num_vertices, modelorg);
1312                                 if (!surface->lightmaptexture && surface->groupmesh->data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1313                                 {
1314                                         for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
1315                                         {
1316                                                 VectorSubtract(v, modelorg, diff);
1317                                                 f = exp(fogdensity/DotProduct(diff, diff));
1318                                                 c[0] = r;
1319                                                 c[1] = g;
1320                                                 c[2] = b;
1321                                                 c[3] = (surface->groupmesh->data_lightmapcolor4f + 4 * surface->num_firstvertex)[i*4+3] * f * a;
1322                                         }
1323                                 }
1324                                 else
1325                                 {
1326                                         for (i = 0, v = (vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
1327                                         {
1328                                                 VectorSubtract(v, modelorg, diff);
1329                                                 f = exp(fogdensity/DotProduct(diff, diff));
1330                                                 c[0] = r;
1331                                                 c[1] = g;
1332                                                 c[2] = b;
1333                                                 c[3] = f * a;
1334                                         }
1335                                 }
1336                                 GL_LockArrays(surface->num_firstvertex, surface->num_vertices);
1337                                 R_Mesh_Draw(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1338                                 GL_LockArrays(0, 0);
1339                         }
1340                 }
1341         }
1342         if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1343                 qglEnable(GL_CULL_FACE);
1344 }
1345
1346 static void RSurfShader_Transparent_Callback(const void *calldata1, int calldata2)
1347 {
1348         const entity_render_t *ent = calldata1;
1349         const msurface_t *surface = ent->model->brush.data_surfaces + calldata2;
1350         vec3_t modelorg;
1351         texture_t *texture;
1352
1353         texture = surface->texture;
1354         if (texture->basematerialflags & MATERIALFLAG_SKY)
1355                 return; // transparent sky is too difficult
1356         R_UpdateTextureInfo(ent, texture);
1357
1358         R_Mesh_Matrix(&ent->matrix);
1359         Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
1360         R_DrawSurfaceList(ent, texture, 1, &surface, modelorg);
1361 }
1362
1363 void R_QueueSurfaceList(entity_render_t *ent, texture_t *texture, int texturenumsurfaces, const msurface_t **texturesurfacelist, const vec3_t modelorg)
1364 {
1365         int texturesurfaceindex;
1366         const msurface_t *surface;
1367         vec3_t tempcenter, center;
1368         if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
1369         {
1370                 // drawing sky transparently would be too difficult
1371                 if (!(texture->currentmaterialflags & MATERIALFLAG_SKY))
1372                 {
1373                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1374                         {
1375                                 surface = texturesurfacelist[texturesurfaceindex];
1376                                 tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
1377                                 tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
1378                                 tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
1379                                 Matrix4x4_Transform(&ent->matrix, tempcenter, center);
1380                                 R_MeshQueue_AddTransparent(ent->effects & EF_NODEPTHTEST ? r_vieworigin : center, RSurfShader_Transparent_Callback, ent, surface - ent->model->brush.data_surfaces);
1381                         }
1382                 }
1383         }
1384         else
1385                 R_DrawSurfaceList(ent, texture, texturenumsurfaces, texturesurfacelist, modelorg);
1386 }
1387
1388 void R_DrawSurfaces(entity_render_t *ent, qboolean skysurfaces)
1389 {
1390         int i, j, f, flagsmask;
1391         msurface_t *surface, **surfacechain;
1392         texture_t *t, *texture;
1393         model_t *model = ent->model;
1394         vec3_t modelorg;
1395         const int maxsurfacelist = 1024;
1396         int numsurfacelist = 0;
1397         const msurface_t *surfacelist[1024];
1398         if (model == NULL)
1399                 return;
1400         R_Mesh_Matrix(&ent->matrix);
1401         Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
1402
1403         // update light styles
1404         if (!skysurfaces && model->brushq1.light_styleupdatechains)
1405         {
1406                 for (i = 0;i < model->brushq1.light_styles;i++)
1407                 {
1408                         if (model->brushq1.light_stylevalue[i] != d_lightstylevalue[model->brushq1.light_style[i]])
1409                         {
1410                                 model->brushq1.light_stylevalue[i] = d_lightstylevalue[model->brushq1.light_style[i]];
1411                                 if ((surfacechain = model->brushq1.light_styleupdatechains[i]))
1412                                         for (;(surface = *surfacechain);surfacechain++)
1413                                                 surface->cached_dlight = true;
1414                         }
1415                 }
1416         }
1417
1418         R_UpdateAllTextureInfo(ent);
1419         flagsmask = skysurfaces ? MATERIALFLAG_SKY : (MATERIALFLAG_WATER | MATERIALFLAG_WALL);
1420         f = 0;
1421         t = NULL;
1422         texture = NULL;
1423         numsurfacelist = 0;
1424         if (ent == r_refdef.worldentity)
1425         {
1426                 for (i = 0, j = model->firstmodelsurface, surface = model->brush.data_surfaces + j;i < model->nummodelsurfaces;i++, j++, surface++)
1427                 {
1428                         if (!r_worldsurfacevisible[j])
1429                                 continue;
1430                         if (t != surface->texture)
1431                         {
1432                                 if (numsurfacelist)
1433                                 {
1434                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1435                                         numsurfacelist = 0;
1436                                 }
1437                                 t = surface->texture;
1438                                 f = t->currentmaterialflags & flagsmask;
1439                                 texture = t->currentframe;
1440                         }
1441                         if (f && surface->num_triangles)
1442                         {
1443                                 // if lightmap parameters changed, rebuild lightmap texture
1444                                 if (surface->cached_dlight && surface->lightmapinfo->samples)
1445                                         R_BuildLightMap(ent, surface);
1446                                 // add face to draw list
1447                                 surfacelist[numsurfacelist++] = surface;
1448                                 if (numsurfacelist >= maxsurfacelist)
1449                                 {
1450                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1451                                         numsurfacelist = 0;
1452                                 }
1453                         }
1454                 }
1455         }
1456         else
1457         {
1458                 for (i = 0, j = model->firstmodelsurface, surface = model->brush.data_surfaces + j;i < model->nummodelsurfaces;i++, j++, surface++)
1459                 {
1460                         if (t != surface->texture)
1461                         {
1462                                 if (numsurfacelist)
1463                                 {
1464                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1465                                         numsurfacelist = 0;
1466                                 }
1467                                 t = surface->texture;
1468                                 f = t->currentmaterialflags & flagsmask;
1469                                 texture = t->currentframe;
1470                         }
1471                         if (f && surface->num_triangles)
1472                         {
1473                                 // if lightmap parameters changed, rebuild lightmap texture
1474                                 if (surface->cached_dlight && surface->lightmapinfo->samples)
1475                                         R_BuildLightMap(ent, surface);
1476                                 // add face to draw list
1477                                 surfacelist[numsurfacelist++] = surface;
1478                                 if (numsurfacelist >= maxsurfacelist)
1479                                 {
1480                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1481                                         numsurfacelist = 0;
1482                                 }
1483                         }
1484                 }
1485         }
1486         if (numsurfacelist)
1487                 R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1488 }
1489
1490 static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
1491 {
1492         int i;
1493         float *v;
1494         rmeshstate_t m;
1495         const mportal_t *portal = calldata1;
1496         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1497         GL_DepthMask(false);
1498         GL_DepthTest(true);
1499         R_Mesh_Matrix(&r_identitymatrix);
1500
1501         memset(&m, 0, sizeof(m));
1502         m.pointer_vertex = varray_vertex3f;
1503         R_Mesh_State(&m);
1504
1505         i = calldata2;
1506         GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
1507                          ((i & 0x0038) >> 3) * (1.0f / 7.0f),
1508                          ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
1509                          0.125f);
1510         if (PlaneDiff(r_vieworigin, (&portal->plane)) < 0)
1511         {
1512                 for (i = portal->numpoints - 1, v = varray_vertex3f;i >= 0;i--, v += 3)
1513                         VectorCopy(portal->points[i].position, v);
1514         }
1515         else
1516                 for (i = 0, v = varray_vertex3f;i < portal->numpoints;i++, v += 3)
1517                         VectorCopy(portal->points[i].position, v);
1518         GL_LockArrays(0, portal->numpoints);
1519         R_Mesh_Draw(0, portal->numpoints, portal->numpoints - 2, polygonelements);
1520         GL_LockArrays(0, 0);
1521 }
1522
1523 // LordHavoc: this is just a nice debugging tool, very slow
1524 static void R_DrawPortals(void)
1525 {
1526         int i, leafnum;//, portalnum;
1527         mportal_t *portal;
1528         float center[3], f;
1529         model_t *model = r_refdef.worldmodel;
1530         if (model == NULL)
1531                 return;
1532         for (leafnum = 0;leafnum < r_refdef.worldmodel->brush.num_leafs;leafnum++)
1533         {
1534                 if (r_worldleafvisible[leafnum])
1535                 {
1536                         //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
1537                         for (portal = r_refdef.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
1538                         {
1539                                 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
1540                                 if (!R_CullBox(portal->mins, portal->maxs))
1541                                 {
1542                                         VectorClear(center);
1543                                         for (i = 0;i < portal->numpoints;i++)
1544                                                 VectorAdd(center, portal->points[i].position, center);
1545                                         f = ixtable[portal->numpoints];
1546                                         VectorScale(center, f, center);
1547                                         //R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, portal, portalnum);
1548                                         R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, portal, leafnum);
1549                                 }
1550                         }
1551                 }
1552         }
1553 }
1554
1555 static void R_DrawCollisionBrush(colbrushf_t *brush)
1556 {
1557         int i;
1558         rmeshstate_t m;
1559         memset(&m, 0, sizeof(m));
1560         m.pointer_vertex = brush->points->v;
1561         R_Mesh_State(&m);
1562         i = (int)(((size_t)brush) / sizeof(colbrushf_t));
1563         GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
1564         GL_LockArrays(0, brush->numpoints);
1565         R_Mesh_Draw(0, brush->numpoints, brush->numtriangles, brush->elements);
1566         GL_LockArrays(0, 0);
1567 }
1568
1569 static void R_DrawCollisionSurface(entity_render_t *ent, msurface_t *surface)
1570 {
1571         int i;
1572         rmeshstate_t m;
1573         if (!surface->num_collisiontriangles)
1574                 return;
1575         memset(&m, 0, sizeof(m));
1576         m.pointer_vertex = surface->data_collisionvertex3f;
1577         R_Mesh_State(&m);
1578         i = (int)(((size_t)surface) / sizeof(msurface_t));
1579         GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
1580         GL_LockArrays(0, surface->num_collisionvertices);
1581         R_Mesh_Draw(0, surface->num_collisionvertices, surface->num_collisiontriangles, surface->data_collisionelement3i);
1582         GL_LockArrays(0, 0);
1583 }
1584
1585 void R_WorldVisibility(void)
1586 {
1587         int i, j, *mark;
1588         mleaf_t *leaf;
1589         mleaf_t *viewleaf;
1590         model_t *model = r_refdef.worldmodel;
1591
1592         if (!model)
1593                 return;
1594
1595         // if possible find the leaf the view origin is in
1596         viewleaf = model->brushq1.PointInLeaf ? model->brushq1.PointInLeaf(model, r_vieworigin) : NULL;
1597         // if possible fetch the visible cluster bits
1598         if (model->brush.FatPVS)
1599                 model->brush.FatPVS(model, r_vieworigin, 2, r_pvsbits, sizeof(r_pvsbits));
1600
1601         // clear the visible surface and leaf flags arrays
1602         memset(r_worldsurfacevisible, 0, model->brush.num_surfaces);
1603         memset(r_worldleafvisible, 0, model->brush.num_leafs);
1604
1605         // if the user prefers surfaceworldnode (testing?) or the viewleaf could
1606         // not be found, or the viewleaf is not part of the visible world
1607         // (floating around in the void), use the pvs method
1608         if (r_surfaceworldnode.integer || !viewleaf || viewleaf->clusterindex < 0)
1609         {
1610                 // pvs method:
1611                 // similar to quake's RecursiveWorldNode but without cache misses
1612                 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
1613                 {
1614                         // if leaf is in current pvs and on the screen, mark its surfaces
1615                         if (CHECKPVSBIT(r_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
1616                         {
1617                                 c_leafs++;
1618                                 r_worldleafvisible[j] = true;
1619                                 if (leaf->numleafsurfaces)
1620                                         for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
1621                                                 r_worldsurfacevisible[*mark] = true;
1622                         }
1623                 }
1624         }
1625         else
1626         {
1627                 int leafstackpos;
1628                 mportal_t *p;
1629                 mleaf_t *leafstack[8192];
1630                 // portal method:
1631                 // follows portals leading outward from viewleaf, does not venture
1632                 // offscreen or into leafs that are not visible, faster than Quake's
1633                 // RecursiveWorldNode and vastly better in unvised maps, often culls a
1634                 // lot of surface that pvs alone would miss
1635                 leafstack[0] = viewleaf;
1636                 leafstackpos = 1;
1637                 while (leafstackpos)
1638                 {
1639                         c_leafs++;
1640                         leaf = leafstack[--leafstackpos];
1641                         r_worldleafvisible[leaf - model->brush.data_leafs] = true;
1642                         // mark any surfaces bounding this leaf
1643                         if (leaf->numleafsurfaces)
1644                                 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
1645                                         r_worldsurfacevisible[*mark] = true;
1646                         // follow portals into other leafs
1647                         // the checks are:
1648                         // if viewer is behind portal (portal faces outward into the scene)
1649                         // and the portal polygon's bounding box is on the screen
1650                         // and the leaf has not been visited yet
1651                         // and the leaf is visible in the pvs
1652                         // (the first two checks won't cause as many cache misses as the leaf checks)
1653                         for (p = leaf->portals;p;p = p->next)
1654                                 if (DotProduct(r_vieworigin, p->plane.normal) < (p->plane.dist + 1) && !R_CullBox(p->mins, p->maxs) && !r_worldleafvisible[p->past - model->brush.data_leafs] && CHECKPVSBIT(r_pvsbits, p->past->clusterindex))
1655                                         leafstack[leafstackpos++] = p->past;
1656                 }
1657         }
1658
1659         if (r_drawportals.integer)
1660                 R_DrawPortals();
1661 }
1662
1663 void R_Q1BSP_DrawSky(entity_render_t *ent)
1664 {
1665         if (ent->model == NULL)
1666                 return;
1667         if (r_drawcollisionbrushes.integer < 2)
1668                 R_DrawSurfaces(ent, true);
1669 }
1670
1671 void R_Q1BSP_Draw(entity_render_t *ent)
1672 {
1673         if (ent->model == NULL)
1674                 return;
1675         c_bmodels++;
1676         if (r_drawcollisionbrushes.integer < 2)
1677                 R_DrawSurfaces(ent, false);
1678         if (r_drawcollisionbrushes.integer >= 1 && ent->model->brush.num_brushes)
1679         {
1680                 int i;
1681                 model_t *model = ent->model;
1682                 msurface_t *surface;
1683                 q3mbrush_t *brush;
1684                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1685                 GL_DepthMask(false);
1686                 GL_DepthTest(true);
1687                 qglPolygonOffset(r_drawcollisionbrushes_polygonfactor.value, r_drawcollisionbrushes_polygonoffset.value);
1688                 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
1689                         if (brush->colbrushf && brush->colbrushf->numtriangles)
1690                                 R_DrawCollisionBrush(brush->colbrushf);
1691                 for (i = 0, surface = model->brush.data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
1692                         if (surface->num_collisiontriangles)
1693                                 R_DrawCollisionSurface(ent, surface);
1694                 qglPolygonOffset(0, 0);
1695         }
1696 }
1697
1698 void R_Q1BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outclusterlist, qbyte *outclusterpvs, int *outnumclusterspointer, int *outsurfacelist, qbyte *outsurfacepvs, int *outnumsurfacespointer)
1699 {
1700         model_t *model = ent->model;
1701         vec3_t lightmins, lightmaxs;
1702         int t, leafindex, leafsurfaceindex, surfaceindex, triangleindex, outnumclusters = 0, outnumsurfaces = 0;
1703         const int *e;
1704         const float *v[3];
1705         msurface_t *surface;
1706         mleaf_t *leaf;
1707         const qbyte *pvs;
1708         lightmins[0] = relativelightorigin[0] - lightradius;
1709         lightmins[1] = relativelightorigin[1] - lightradius;
1710         lightmins[2] = relativelightorigin[2] - lightradius;
1711         lightmaxs[0] = relativelightorigin[0] + lightradius;
1712         lightmaxs[1] = relativelightorigin[1] + lightradius;
1713         lightmaxs[2] = relativelightorigin[2] + lightradius;
1714         *outnumclusterspointer = 0;
1715         *outnumsurfacespointer = 0;
1716         memset(outclusterpvs, 0, model->brush.num_pvsclusterbytes);
1717         memset(outsurfacepvs, 0, (model->nummodelsurfaces + 7) >> 3);
1718         if (model == NULL)
1719         {
1720                 VectorCopy(lightmins, outmins);
1721                 VectorCopy(lightmaxs, outmaxs);
1722                 return;
1723         }
1724         VectorCopy(relativelightorigin, outmins);
1725         VectorCopy(relativelightorigin, outmaxs);
1726         if (model->brush.GetPVS)
1727                 pvs = model->brush.GetPVS(model, relativelightorigin);
1728         else
1729                 pvs = NULL;
1730         R_UpdateAllTextureInfo(ent);
1731         // FIXME: use BSP recursion as lights are often small
1732         for (leafindex = 0, leaf = model->brush.data_leafs;leafindex < model->brush.num_leafs;leafindex++, leaf++)
1733         {
1734                 if (BoxesOverlap(lightmins, lightmaxs, leaf->mins, leaf->maxs) && (pvs == NULL || CHECKPVSBIT(pvs, leaf->clusterindex)))
1735                 {
1736                         outmins[0] = min(outmins[0], leaf->mins[0]);
1737                         outmins[1] = min(outmins[1], leaf->mins[1]);
1738                         outmins[2] = min(outmins[2], leaf->mins[2]);
1739                         outmaxs[0] = max(outmaxs[0], leaf->maxs[0]);
1740                         outmaxs[1] = max(outmaxs[1], leaf->maxs[1]);
1741                         outmaxs[2] = max(outmaxs[2], leaf->maxs[2]);
1742                         if (outclusterpvs)
1743                         {
1744                                 if (!CHECKPVSBIT(outclusterpvs, leaf->clusterindex))
1745                                 {
1746                                         SETPVSBIT(outclusterpvs, leaf->clusterindex);
1747                                         outclusterlist[outnumclusters++] = leaf->clusterindex;
1748                                 }
1749                         }
1750                         if (outsurfacepvs)
1751                         {
1752                                 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
1753                                 {
1754                                         surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
1755                                         if (!CHECKPVSBIT(outsurfacepvs, surfaceindex))
1756                                         {
1757                                                 surface = model->brush.data_surfaces + surfaceindex;
1758                                                 if (BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1759                                                 if ((surface->texture->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1760                                                 {
1761                                                         for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
1762                                                         {
1763                                                                 v[0] = model->brush.shadowmesh->vertex3f + e[0] * 3;
1764                                                                 v[1] = model->brush.shadowmesh->vertex3f + e[1] * 3;
1765                                                                 v[2] = model->brush.shadowmesh->vertex3f + e[2] * 3;
1766                                                                 if (lightmaxs[0] > min(v[0][0], min(v[1][0], v[2][0])) && lightmins[0] < max(v[0][0], max(v[1][0], v[2][0])) && lightmaxs[1] > min(v[0][1], min(v[1][1], v[2][1])) && lightmins[1] < max(v[0][1], max(v[1][1], v[2][1])) && lightmaxs[2] > min(v[0][2], min(v[1][2], v[2][2])) && lightmins[2] < max(v[0][2], max(v[1][2], v[2][2])))
1767                                                                 {
1768                                                                         SETPVSBIT(outsurfacepvs, surfaceindex);
1769                                                                         outsurfacelist[outnumsurfaces++] = surfaceindex;
1770                                                                         break;
1771                                                                 }
1772                                                         }
1773                                                 }
1774                                         }
1775                                 }
1776                         }
1777                 }
1778         }
1779
1780         // limit combined leaf box to light boundaries
1781         outmins[0] = max(outmins[0], lightmins[0]);
1782         outmins[1] = max(outmins[1], lightmins[1]);
1783         outmins[2] = max(outmins[2], lightmins[2]);
1784         outmaxs[0] = min(outmaxs[0], lightmaxs[0]);
1785         outmaxs[1] = min(outmaxs[1], lightmaxs[1]);
1786         outmaxs[2] = min(outmaxs[2], lightmaxs[2]);
1787
1788         *outnumclusterspointer = outnumclusters;
1789         *outnumsurfacespointer = outnumsurfaces;
1790 }
1791
1792 void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs)
1793 {
1794         model_t *model = ent->model;
1795         msurface_t *surface;
1796         int surfacelistindex;
1797         if (r_drawcollisionbrushes.integer < 2)
1798         {
1799                 R_Mesh_Matrix(&ent->matrix);
1800                 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1801                 if (!r_shadow_compilingrtlight)
1802                         R_UpdateAllTextureInfo(ent);
1803                 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1804                 {
1805                         surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
1806                         if ((surface->texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
1807                                 continue;
1808                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1809                                 continue;
1810                         R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
1811                 }
1812                 R_Shadow_VolumeFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, model->brush.shadowmesh->neighbor3i, relativelightorigin, lightradius + model->radius + r_shadow_projectdistance.value, numshadowmark, shadowmarklist);
1813         }
1814 }
1815
1816 void R_Q1BSP_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltolight, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz, rtexture_t *lightcubemap, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int numsurfaces, const int *surfacelist)
1817 {
1818         model_t *model = ent->model;
1819         msurface_t *surface;
1820         texture_t *t;
1821         int surfacelistindex;
1822         if (r_drawcollisionbrushes.integer < 2)
1823         {
1824                 R_Mesh_Matrix(&ent->matrix);
1825                 if (!r_shadow_compilingrtlight)
1826                         R_UpdateAllTextureInfo(ent);
1827                 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1828                 {
1829                         surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
1830                         if (surface->texture->basematerialflags & MATERIALFLAG_NODRAW || !surface->num_triangles)
1831                                 continue;
1832                         if (r_shadow_compilingrtlight)
1833                         {
1834                                 // if compiling an rtlight, capture the mesh
1835                                 t = surface->texture;
1836                                 if ((t->basematerialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1837                                         Mod_ShadowMesh_AddMesh(r_shadow_mempool, r_shadow_compilingrtlight->static_meshchain_light, surface->texture->skin.base, surface->texture->skin.gloss, surface->texture->skin.nmap, surface->groupmesh->data_vertex3f, surface->groupmesh->data_svector3f, surface->groupmesh->data_tvector3f, surface->groupmesh->data_normal3f, surface->groupmesh->data_texcoordtexture2f, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
1838                         }
1839                         else if (ent != r_refdef.worldentity || r_worldsurfacevisible[surfacelist[surfacelistindex]])
1840                         {
1841                                 t = surface->texture->currentframe;
1842                                 // FIXME: transparent surfaces need to be lit later
1843                                 if ((t->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1844                                 {
1845                                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1846                                                 qglDisable(GL_CULL_FACE);
1847                                         R_Shadow_RenderLighting(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle), surface->groupmesh->data_vertex3f, surface->groupmesh->data_svector3f, surface->groupmesh->data_tvector3f, surface->groupmesh->data_normal3f, surface->groupmesh->data_texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightcolor, matrix_modeltolight, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.base, t->skin.nmap, t->skin.gloss, lightcubemap, ambientscale, diffusescale, specularscale);
1848                                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1849                                                 qglEnable(GL_CULL_FACE);
1850                                 }
1851                         }
1852                 }
1853         }
1854 }
1855
1856 #if 0
1857 static void gl_surf_start(void)
1858 {
1859 }
1860
1861 static void gl_surf_shutdown(void)
1862 {
1863 }
1864
1865 static void gl_surf_newmap(void)
1866 {
1867 }
1868 #endif
1869
1870 void GL_Surf_Init(void)
1871 {
1872
1873         Cvar_RegisterVariable(&r_ambient);
1874         Cvar_RegisterVariable(&r_drawportals);
1875         Cvar_RegisterVariable(&r_testvis);
1876         Cvar_RegisterVariable(&r_detailtextures);
1877         Cvar_RegisterVariable(&r_surfaceworldnode);
1878         Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonfactor);
1879         Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonoffset);
1880         Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
1881         Cvar_RegisterVariable(&gl_lightmaps);
1882
1883         //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);
1884 }
1885