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_brushmodel_entities[n];
 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->mesh.num_vertices - 3;j += 4)
 310                 {
 311                         VectorClear(center);
 312                         for (i = 0;i < 4;i++)
 313                                 VectorAdd(center, surface->mesh.data_vertex3f + (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->mesh.data_normal3f + j*3, surface->mesh.data_svector3f + j*3, surface->mesh.data_tvector3f + j*3, center);
 317                         Matrix4x4_Invert_Simple(&imatrix1, &matrix1);
 318                         for (i = 0;i < 4;i++)
 319                                 Matrix4x4_Transform(&imatrix1, surface->mesh.data_vertex3f + (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 + (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->mesh.num_vertices - 3;j += 4)
 336                 {
 337                         VectorClear(center);
 338                         for (i = 0;i < 4;i++)
 339                                 VectorAdd(center, surface->mesh.data_vertex3f + (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->mesh.data_normal3f + j*3, surface->mesh.data_svector3f + j*3, surface->mesh.data_tvector3f + j*3, center);
 343                         Matrix4x4_Invert_Simple(&imatrix1, &matrix1);
 344                         for (i = 0;i < 4;i++)
 345                                 Matrix4x4_Transform(&imatrix1, surface->mesh.data_vertex3f + (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 + (i+j) * 3);
 348                 }
 349         }
 350         else
 351                 memcpy(varray_vertex3f, surface->mesh.data_vertex3f, sizeof(float[3]) * surface->mesh.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->mesh.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->mesh.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         rmeshstate_t m;
 421         texture = texture->currentframe;
 422         if (texture->currentmaterialflags & MATERIALFLAG_NODRAW)
 423                 return;
 424         c_faces += texturenumsurfaces;
 425         // gl_lightmaps debugging mode skips normal texturing
 426         if (gl_lightmaps.integer)
 427         {
 428                 GL_BlendFunc(GL_ONE, GL_ZERO);
 429                 GL_DepthMask(true);
 430                 GL_DepthTest(true);
 431                 qglDisable(GL_CULL_FACE);
 432                 GL_Color(1, 1, 1, 1);
 433                 memset(&m, 0, sizeof(m));
 434                 R_Mesh_State(&m);
 435                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 436                 {
 437                         surface = texturesurfacelist[texturesurfaceindex];
 438                         R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 439                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordlightmap2f);
 440                         R_Mesh_ColorPointer(surface->lightmaptexture ? NULL : surface->mesh.data_lightmapcolor4f);
 441                         R_Mesh_VertexPointer(surface->mesh.data_vertex3f);
 442                         GL_LockArrays(0, surface->mesh.num_vertices);
 443                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 444                         GL_LockArrays(0, 0);
 445                 }
 446                 qglEnable(GL_CULL_FACE);
 447                 return;
 448         }
 449         GL_DepthTest(!(texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST));
 450         GL_DepthMask(!(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT));
 451         if (texture->currentmaterialflags & MATERIALFLAG_ADD)
 452                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 453         else if (texture->currentmaterialflags & MATERIALFLAG_ALPHA)
 454                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 455         else
 456                 GL_BlendFunc(GL_ONE, GL_ZERO);
 457         // water waterscrolling in texture matrix
 458         waterscrolling = (texture->currentmaterialflags & MATERIALFLAG_WATER) && r_waterscroll.value != 0;
 459         if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
 460                 qglDisable(GL_CULL_FACE);
 461         if (texture->currentmaterialflags & MATERIALFLAG_SKY)
 462         {
 463                 if (skyrendernow)
 464                 {
 465                         skyrendernow = false;
 466                         if (skyrendermasked)
 467                                 R_Sky();
 468                 }
 469                 // LordHavoc: HalfLife maps have freaky skypolys...
 470                 if (!ent->model->brush.ishlbsp)
 471                 {
 472                         R_Mesh_Matrix(&ent->matrix);
 473                         GL_Color(fogcolor[0], fogcolor[1], fogcolor[2], 1);
 474                         if (skyrendermasked)
 475                         {
 476                                 // depth-only (masking)
 477                                 GL_ColorMask(0,0,0,0);
 478                                 // just to make sure that braindead drivers don't draw anything
 479                                 // despite that colormask...
 480                                 GL_BlendFunc(GL_ZERO, GL_ONE);
 481                         }
 482                         else
 483                         {
 484                                 // fog sky
 485                                 GL_BlendFunc(GL_ONE, GL_ZERO);
 486                         }
 487                         GL_DepthMask(true);
 488                         GL_DepthTest(true);
 489                         memset(&m, 0, sizeof(m));
 490                         R_Mesh_State(&m);
 491                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 492                         {
 493                                 surface = texturesurfacelist[texturesurfaceindex];
 494                                 R_Mesh_VertexPointer(surface->mesh.data_vertex3f);
 495                                 GL_LockArrays(0, surface->mesh.num_vertices);
 496                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 497                                 GL_LockArrays(0, 0);
 498                         }
 499                         GL_ColorMask(r_refdef.colormask[0], r_refdef.colormask[1], r_refdef.colormask[2], 1);
 500                 }
 501         }
 502         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)
 503         {
 504                 // NVIDIA Geforce3 distortion texture shader on water
 505                 float args[4] = {0.05f,0,0,0.04f};
 506                 memset(&m, 0, sizeof(m));
 507                 m.tex[0] = R_GetTexture(mod_shared_distorttexture[(int)(r_refdef.time * 16)&63]);
 508                 m.tex[1] = R_GetTexture(texture->skin.base);
 509                 m.texcombinergb[0] = GL_REPLACE;
 510                 m.texcombinergb[1] = GL_REPLACE;
 511                 Matrix4x4_CreateFromQuakeEntity(&m.texmatrix[0], 0, 0, 0, 0, 0, 0, r_watershader.value);
 512                 m.texmatrix[1] = r_surf_waterscrollmatrix;
 513                 R_Mesh_State(&m);
 514
 515                 GL_Color(1, 1, 1, texture->currentalpha);
 516                 GL_ActiveTexture(0);
 517                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
 518                 GL_ActiveTexture(1);
 519                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_OFFSET_TEXTURE_2D_NV);
 520                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB);
 521                 qglTexEnvfv(GL_TEXTURE_SHADER_NV, GL_OFFSET_TEXTURE_MATRIX_NV, &args[0]);
 522                 qglEnable(GL_TEXTURE_SHADER_NV);
 523
 524                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 525                 {
 526                         surface = texturesurfacelist[texturesurfaceindex];
 527                         R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
 528                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
 529                         R_Mesh_TexCoordPointer(1, 2, surface->mesh.data_texcoordtexture2f);
 530                         GL_LockArrays(0, surface->mesh.num_vertices);
 531                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 532                         GL_LockArrays(0, 0);
 533                 }
 534
 535                 qglDisable(GL_TEXTURE_SHADER_NV);
 536                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
 537                 GL_ActiveTexture(0);
 538         }
 539         else if (texture->currentmaterialflags & (MATERIALFLAG_WATER | MATERIALFLAG_WALL))
 540         {
 541                 // normal surface (wall or water)
 542                 dobase = true;
 543                 dolightmap = !(texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT);
 544                 doambient = r_ambient.value >= (1/64.0f);
 545                 dodetail = r_detailtextures.integer && texture->skin.detail != NULL && !(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT);
 546                 doglow = texture->skin.glow != NULL;
 547                 dofogpass = fogenabled && !(texture->currentmaterialflags & MATERIALFLAG_ADD);
 548                 fogallpasses = fogenabled && !(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT);
 549                 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
 550                 {
 551                         if (dobase && dolightmap && gl_combine.integer)
 552                         {
 553                                 dobase = false;
 554                                 memset(&m, 0, sizeof(m));
 555                                 m.tex[1] = R_GetTexture(texture->skin.base);
 556                                 if (waterscrolling)
 557                                         m.texmatrix[1] = r_surf_waterscrollmatrix;
 558                                 m.texrgbscale[1] = 2;
 559                                 m.pointer_color = varray_color4f;
 560                                 R_Mesh_State(&m);
 561                                 colorscale = 1;
 562                                 r = ent->colormod[0] * colorscale;
 563                                 g = ent->colormod[1] * colorscale;
 564                                 b = ent->colormod[2] * colorscale;
 565                                 a = texture->currentalpha;
 566                                 base = r_ambient.value * (1.0f / 64.0f);
 567                                 // q3bsp has no lightmap updates, so the lightstylevalue that
 568                                 // would normally be baked into the lightmaptexture must be
 569                                 // applied to the color
 570                                 if (ent->model->brushq1.lightdata)
 571                                 {
 572                                         float scale = d_lightstylevalue[0] * (1.0f / 128.0f);
 573                                         r *= scale;
 574                                         g *= scale;
 575                                         b *= scale;
 576                                 }
 577                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 578                                 {
 579                                         surface = texturesurfacelist[texturesurfaceindex];
 580                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
 581                                         R_Mesh_VertexPointer(vertex3f);
 582                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordlightmap2f);
 583                                         R_Mesh_TexCoordPointer(1, 2, surface->mesh.data_texcoordtexture2f);
 584                                         if (surface->lightmaptexture)
 585                                         {
 586                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 587                                                 if (fogallpasses)
 588                                                 {
 589                                                         R_Mesh_ColorPointer(varray_color4f);
 590                                                         for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 591                                                         {
 592                                                                 VectorSubtract(v, modelorg, diff);
 593                                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
 594                                                                 c[0] = f * r;
 595                                                                 c[1] = f * g;
 596                                                                 c[2] = f * b;
 597                                                                 c[3] = a;
 598                                                         }
 599                                                 }
 600                                                 else
 601                                                 {
 602                                                         R_Mesh_ColorPointer(NULL);
 603                                                         GL_Color(r, g, b, a);
 604                                                 }
 605                                         }
 606                                         else
 607                                         {
 608                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 609                                                 R_Mesh_ColorPointer(varray_color4f);
 610                                                 if (surface->mesh.data_lightmapcolor4f)
 611                                                 {
 612                                                         for (i = 0, c = varray_color4f;i < surface->mesh.num_vertices;i++, c += 4)
 613                                                         {
 614                                                                 c[0] = surface->mesh.data_lightmapcolor4f[i*4+0] * r;
 615                                                                 c[1] = surface->mesh.data_lightmapcolor4f[i*4+1] * g;
 616                                                                 c[2] = surface->mesh.data_lightmapcolor4f[i*4+2] * b;
 617                                                                 c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 618                                                         }
 619                                                         if (fogallpasses)
 620                                                         {
 621                                                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 622                                                                 {
 623                                                                         VectorSubtract(v, modelorg, diff);
 624                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 625                                                                         VectorScale(c, f, c);
 626                                                                 }
 627                                                         }
 628                                                 }
 629                                                 else
 630                                                 {
 631                                                         R_Mesh_ColorPointer(NULL);
 632                                                         GL_Color(0, 0, 0, a);
 633                                                 }
 634                                         }
 635                                         GL_LockArrays(0, surface->mesh.num_vertices);
 636                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 637                                         GL_LockArrays(0, 0);
 638                                 }
 639                         }
 640                         if (dobase)
 641                         {
 642                                 dobase = false;
 643                                 memset(&m, 0, sizeof(m));
 644                                 m.tex[0] = R_GetTexture(texture->skin.base);
 645                                 if (waterscrolling)
 646                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
 647                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
 648                                 m.pointer_color = varray_color4f;
 649                                 colorscale = 1;
 650                                 if (gl_combine.integer)
 651                                 {
 652                                         m.texrgbscale[0] = 4;
 653                                         colorscale *= 0.25f;
 654                                 }
 655                                 R_Mesh_State(&m);
 656                                 r = ent->colormod[0] * colorscale;
 657                                 g = ent->colormod[1] * colorscale;
 658                                 b = ent->colormod[2] * colorscale;
 659                                 a = texture->currentalpha;
 660                                 if (dolightmap)
 661                                 {
 662                                         // q3bsp has no lightmap updates, so the lightstylevalue that
 663                                         // would normally be baked into the lightmaptexture must be
 664                                         // applied to the color
 665                                         if (!ent->model->brushq1.lightdata)
 666                                         {
 667                                                 float scale = d_lightstylevalue[0] * (1.0f / 128.0f);
 668                                                 r *= scale;
 669                                                 g *= scale;
 670                                                 b *= scale;
 671                                         }
 672                                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 673                                         {
 674                                                 surface = texturesurfacelist[texturesurfaceindex];
 675                                                 vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
 676                                                 R_Mesh_VertexPointer(vertex3f);
 677                                                 R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
 678                                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 679                                                 {
 680                                                         c[0] = 0;
 681                                                         c[1] = 0;
 682                                                         c[2] = 0;
 683                                                         if (surface->mesh.data_lightmapcolor4f)
 684                                                                 VectorCopy(surface->mesh.data_lightmapcolor4f + i*4, c);
 685                                                         else if (surface->lightmapinfo)
 686                                                         {
 687                                                                 const qbyte *lm = surface->lightmapinfo->samples + surface->mesh.data_lightmapoffsets[i];
 688                                                                 float scale = d_lightstylevalue[surface->lightmapinfo->styles[0]] * (1.0f / 32768.0f);
 689                                                                 VectorMA(c, scale, lm, c);
 690                                                                 if (surface->lightmapinfo->styles[1] != 255)
 691                                                                 {
 692                                                                         int size3 = ((surface->lightmapinfo->extents[0]>>4)+1)*((surface->lightmapinfo->extents[1]>>4)+1)*3;
 693                                                                         lm += size3;
 694                                                                         scale = d_lightstylevalue[surface->lightmapinfo->styles[1]] * (1.0f / 32768.0f);
 695                                                                         VectorMA(c, scale, lm, c);
 696                                                                         if (surface->lightmapinfo->styles[2] != 255)
 697                                                                         {
 698                                                                                 lm += size3;
 699                                                                                 scale = d_lightstylevalue[surface->lightmapinfo->styles[2]] * (1.0f / 32768.0f);
 700                                                                                 VectorMA(c, scale, lm, c);
 701                                                                                 if (surface->lightmapinfo->styles[3] != 255)
 702                                                                                 {
 703                                                                                         lm += size3;
 704                                                                                         scale = d_lightstylevalue[surface->lightmapinfo->styles[3]] * (1.0f / 32768.0f);
 705                                                                                         VectorMA(c, scale, lm, c);
 706                                                                                 }
 707                                                                         }
 708                                                                 }
 709                                                         }
 710                                                         c[0] *= r;
 711                                                         c[1] *= g;
 712                                                         c[2] *= b;
 713                                                         if (fogallpasses)
 714                                                         {
 715                                                                 VectorSubtract(v, modelorg, diff);
 716                                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
 717                                                                 VectorScale(c, f, c);
 718                                                         }
 719                                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 720                                                                 c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 721                                                         else
 722                                                                 c[3] = a;
 723                                                 }
 724                                                 GL_LockArrays(0, surface->mesh.num_vertices);
 725                                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 726                                                 GL_LockArrays(0, 0);
 727                                         }
 728                                 }
 729                                 else
 730                                 {
 731                                         if (fogallpasses)
 732                                         {
 733                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 734                                                 {
 735                                                         surface = texturesurfacelist[texturesurfaceindex];
 736                                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
 737                                                         R_Mesh_VertexPointer(vertex3f);
 738                                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
 739                                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 740                                                         {
 741                                                                 R_Mesh_ColorPointer(varray_color4f);
 742                                                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 743                                                                 {
 744                                                                         VectorSubtract(v, modelorg, diff);
 745                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 746                                                                         c[0] = r * f;
 747                                                                         c[1] = g * f;
 748                                                                         c[2] = b * f;
 749                                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 750                                                                 }
 751                                                         }
 752                                                         else
 753                                                         {
 754                                                                 R_Mesh_ColorPointer(varray_color4f);
 755                                                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 756                                                                 {
 757                                                                         VectorSubtract(v, modelorg, diff);
 758                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 759                                                                         c[0] = r * f;
 760                                                                         c[1] = g * f;
 761                                                                         c[2] = b * f;
 762                                                                         c[3] = a;
 763                                                                 }
 764                                                         }
 765                                                         GL_LockArrays(0, surface->mesh.num_vertices);
 766                                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 767                                                         GL_LockArrays(0, 0);
 768                                                 }
 769                                         }
 770                                         else
 771                                         {
 772                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 773                                                 {
 774                                                         surface = texturesurfacelist[texturesurfaceindex];
 775                                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
 776                                                         R_Mesh_VertexPointer(vertex3f);
 777                                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
 778                                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 779                                                         {
 780                                                                 R_Mesh_ColorPointer(varray_color4f);
 781                                                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 782                                                                 {
 783                                                                         c[0] = r;
 784                                                                         c[1] = g;
 785                                                                         c[2] = b;
 786                                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 787                                                                 }
 788                                                         }
 789                                                         else
 790                                                         {
 791                                                                 R_Mesh_ColorPointer(NULL);
 792                                                                 GL_Color(r, g, b, a);
 793                                                         }
 794                                                         GL_LockArrays(0, surface->mesh.num_vertices);
 795                                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 796                                                         GL_LockArrays(0, 0);
 797                                                 }
 798                                         }
 799                                 }
 800                         }
 801                 }
 802                 else
 803                 {
 804                         if (!dolightmap && dobase)
 805                         {
 806                                 dolightmap = false;
 807                                 dobase = false;
 808                                 GL_Color(ent->colormod[0], ent->colormod[1], ent->colormod[2], 1);
 809                                 memset(&m, 0, sizeof(m));
 810                                 m.tex[0] = R_GetTexture(texture->skin.base);
 811                                 if (waterscrolling)
 812                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
 813                                 R_Mesh_State(&m);
 814                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 815                                 {
 816                                         surface = texturesurfacelist[texturesurfaceindex];
 817                                         R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
 818                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
 819                                         GL_LockArrays(0, surface->mesh.num_vertices);
 820                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 821                                         GL_LockArrays(0, 0);
 822                                 }
 823                         }
 824                         if (r_lightmapintensity <= 0 && dolightmap && dobase)
 825                         {
 826                                 dolightmap = false;
 827                                 dobase = false;
 828                                 GL_Color(0, 0, 0, 1);
 829                                 memset(&m, 0, sizeof(m));
 830                                 R_Mesh_State(&m);
 831                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 832                                 {
 833                                         surface = texturesurfacelist[texturesurfaceindex];
 834                                         R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
 835                                         GL_LockArrays(0, surface->mesh.num_vertices);
 836                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 837                                         GL_LockArrays(0, 0);
 838                                 }
 839                         }
 840                         if (r_textureunits.integer >= 2 && gl_combine.integer && dolightmap && dobase)
 841                         {
 842                                 // dualtexture combine
 843                                 GL_BlendFunc(GL_ONE, GL_ZERO);
 844                                 GL_DepthMask(true);
 845                                 dolightmap = false;
 846                                 dobase = false;
 847                                 memset(&m, 0, sizeof(m));
 848                                 m.tex[1] = R_GetTexture(texture->skin.base);
 849                                 if (waterscrolling)
 850                                         m.texmatrix[1] = r_surf_waterscrollmatrix;
 851                                 m.texrgbscale[1] = 2;
 852                                 R_Mesh_State(&m);
 853                                 r = ent->colormod[0] * r_lightmapintensity;
 854                                 g = ent->colormod[1] * r_lightmapintensity;
 855                                 b = ent->colormod[2] * r_lightmapintensity;
 856                                 GL_Color(r, g, b, 1);
 857                                 if (texture->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
 858                                 {
 859                                         R_Mesh_VertexPointer(varray_vertex3f);
 860                                         if (r == 1 && g == 1 && b == 1)
 861                                         {
 862                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 863                                                 {
 864                                                         surface = texturesurfacelist[texturesurfaceindex];
 865                                                         RSurf_DeformVertices(ent, texture, surface, modelorg);
 866                                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordlightmap2f);
 867                                                         R_Mesh_TexCoordPointer(1, 2, surface->mesh.data_texcoordtexture2f);
 868                                                         if (surface->lightmaptexture)
 869                                                         {
 870                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 871                                                                 R_Mesh_ColorPointer(NULL);
 872                                                         }
 873                                                         else //if (r == 1 && g == 1 && b == 1)
 874                                                         {
 875                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 876                                                                 R_Mesh_ColorPointer(surface->mesh.data_lightmapcolor4f);
 877                                                         }
 878                                                         GL_LockArrays(0, surface->mesh.num_vertices);
 879                                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 880                                                         GL_LockArrays(0, 0);
 881                                                 }
 882                                         }
 883                                         else
 884                                         {
 885                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 886                                                 {
 887                                                         surface = texturesurfacelist[texturesurfaceindex];
 888                                                         RSurf_DeformVertices(ent, texture, surface, modelorg);
 889                                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordlightmap2f);
 890                                                         R_Mesh_TexCoordPointer(1, 2, surface->mesh.data_texcoordtexture2f);
 891                                                         if (surface->lightmaptexture)
 892                                                         {
 893                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 894                                                                 R_Mesh_ColorPointer(NULL);
 895                                                         }
 896                                                         else
 897                                                         {
 898                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 899                                                                 R_Mesh_ColorPointer(varray_color4f);
 900                                                                 for (i = 0;i < surface->mesh.num_vertices;i++)
 901                                                                 {
 902                                                                         varray_color4f[i*4+0] = surface->mesh.data_lightmapcolor4f[i*4+0] * r;
 903                                                                         varray_color4f[i*4+1] = surface->mesh.data_lightmapcolor4f[i*4+1] * g;
 904                                                                         varray_color4f[i*4+2] = surface->mesh.data_lightmapcolor4f[i*4+2] * b;
 905                                                                         varray_color4f[i*4+3] = surface->mesh.data_lightmapcolor4f[i*4+3];
 906                                                                 }
 907                                                         }
 908                                                         GL_LockArrays(0, surface->mesh.num_vertices);
 909                                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 910                                                         GL_LockArrays(0, 0);
 911                                                 }
 912                                         }
 913                                 }
 914                                 else
 915                                 {
 916                                         if (r == 1 && g == 1 && b == 1)
 917                                         {
 918 #if 0
 919                                                 // experimental direct state calls for measuring
 920                                                 // R_Mesh_ call overhead, do not use!
 921                                                 R_Mesh_VertexPointer(varray_vertex3f);
 922                                                 R_Mesh_TexCoordPointer(0, 2, varray_texcoord2f[0]);
 923                                                 R_Mesh_TexCoordPointer(1, 2, varray_texcoord2f[1]);
 924                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 925                                                 R_Mesh_ColorPointer(varray_color4f);
 926                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 927                                                 {
 928                                                         surface = texturesurfacelist[texturesurfaceindex];
 929                                                         qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), surface->mesh.data_vertex3f);
 930                                                         qglClientActiveTexture(GL_TEXTURE0_ARB);
 931                                                         qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), surface->mesh.data_texcoordlightmap2f);
 932                                                         qglClientActiveTexture(GL_TEXTURE1_ARB);
 933                                                         qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), surface->mesh.data_texcoordtexture2f);
 934                                                         if (surface->lightmaptexture)
 935                                                         {
 936                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 937                                                                 qglDisableClientState(GL_COLOR_ARRAY);
 938                                                                 qglColor4f(r, g, b, 1);
 939                                                         }
 940                                                         else //if (r == 1 && g == 1 && b == 1)
 941                                                         {
 942                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 943                                                                 qglEnableClientState(GL_COLOR_ARRAY);
 944                                                                 qglColorPointer(4, GL_FLOAT, sizeof(float[4]), surface->mesh.data_lightmapcolor4f);
 945                                                         }
 946                                                         qglLockArraysEXT(0, surface->mesh.num_vertices);
 947                                                         qglDrawRangeElements(GL_TRIANGLES, 0, surface->mesh.num_vertices, surface->mesh.num_triangles * 3, GL_UNSIGNED_INT, surface->mesh.data_element3i);
 948                                                         qglUnlockArraysEXT();
 949                                                 }
 950 #else
 951                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 952                                                 {
 953                                                         surface = texturesurfacelist[texturesurfaceindex];
 954                                                         R_Mesh_VertexPointer(surface->mesh.data_vertex3f);
 955                                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordlightmap2f);
 956                                                         R_Mesh_TexCoordPointer(1, 2, surface->mesh.data_texcoordtexture2f);
 957                                                         if (surface->lightmaptexture)
 958                                                         {
 959                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 960                                                                 R_Mesh_ColorPointer(NULL);
 961                                                         }
 962                                                         else //if (r == 1 && g == 1 && b == 1)
 963                                                         {
 964                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 965                                                                 R_Mesh_ColorPointer(surface->mesh.data_lightmapcolor4f);
 966                                                         }
 967                                                         GL_LockArrays(0, surface->mesh.num_vertices);
 968                                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 969                                                         GL_LockArrays(0, 0);
 970                                                 }
 971 #endif
 972                                         }
 973                                         else
 974                                         {
 975                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 976                                                 {
 977                                                         surface = texturesurfacelist[texturesurfaceindex];
 978                                                         R_Mesh_VertexPointer(surface->mesh.data_vertex3f);
 979                                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordlightmap2f);
 980                                                         R_Mesh_TexCoordPointer(1, 2, surface->mesh.data_texcoordtexture2f);
 981                                                         if (surface->lightmaptexture)
 982                                                         {
 983                                                                 R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
 984                                                                 R_Mesh_ColorPointer(NULL);
 985                                                         }
 986                                                         else
 987                                                         {
 988                                                                 R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
 989                                                                 R_Mesh_ColorPointer(varray_color4f);
 990                                                                 for (i = 0;i < surface->mesh.num_vertices;i++)
 991                                                                 {
 992                                                                         varray_color4f[i*4+0] = surface->mesh.data_lightmapcolor4f[i*4+0] * r;
 993                                                                         varray_color4f[i*4+1] = surface->mesh.data_lightmapcolor4f[i*4+1] * g;
 994                                                                         varray_color4f[i*4+2] = surface->mesh.data_lightmapcolor4f[i*4+2] * b;
 995                                                                         varray_color4f[i*4+3] = surface->mesh.data_lightmapcolor4f[i*4+3];
 996                                                                 }
 997                                                         }
 998                                                         GL_LockArrays(0, surface->mesh.num_vertices);
 999                                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1000                                                         GL_LockArrays(0, 0);
1001                                                 }
1002                                         }
1003                                 }
1004                         }
1005                         // single texture
1006                         if (dolightmap)
1007                         {
1008                                 GL_BlendFunc(GL_ONE, GL_ZERO);
1009                                 GL_DepthMask(true);
1010                                 GL_Color(1, 1, 1, 1);
1011                                 memset(&m, 0, sizeof(m));
1012                                 R_Mesh_State(&m);
1013                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1014                                 {
1015                                         surface = texturesurfacelist[texturesurfaceindex];
1016                                         R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
1017                                         R_Mesh_TexBind(0, R_GetTexture(surface->lightmaptexture));
1018                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordlightmap2f);
1019                                         R_Mesh_ColorPointer(surface->lightmaptexture ? NULL : surface->mesh.data_lightmapcolor4f);
1020                                         GL_LockArrays(0, surface->mesh.num_vertices);
1021                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1022                                         GL_LockArrays(0, 0);
1023                                 }
1024                         }
1025                         if (dobase)
1026                         {
1027                                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
1028                                 GL_DepthMask(false);
1029                                 GL_Color(r_lightmapintensity * ent->colormod[0], r_lightmapintensity * ent->colormod[1], r_lightmapintensity * ent->colormod[2], 1);
1030                                 memset(&m, 0, sizeof(m));
1031                                 m.tex[0] = R_GetTexture(texture->skin.base);
1032                                 if (waterscrolling)
1033                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
1034                                 R_Mesh_State(&m);
1035                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1036                                 {
1037                                         surface = texturesurfacelist[texturesurfaceindex];
1038                                         R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
1039                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
1040                                         GL_LockArrays(0, surface->mesh.num_vertices);
1041                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1042                                         GL_LockArrays(0, 0);
1043                                 }
1044                         }
1045                 }
1046                 if (doambient)
1047                 {
1048                         doambient = false;
1049                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1050                         GL_DepthMask(false);
1051                         memset(&m, 0, sizeof(m));
1052                         m.tex[0] = R_GetTexture(texture->skin.base);
1053                         if (waterscrolling)
1054                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
1055                         m.pointer_color = varray_color4f;
1056                         colorscale = 1;
1057                         if (gl_combine.integer)
1058                         {
1059                                 m.texrgbscale[0] = 4;
1060                                 colorscale *= 0.25f;
1061                         }
1062                         R_Mesh_State(&m);
1063                         base = r_ambient.value * (1.0f / 64.0f);
1064                         r = ent->colormod[0] * colorscale * base;
1065                         g = ent->colormod[1] * colorscale * base;
1066                         b = ent->colormod[2] * colorscale * base;
1067                         a = texture->currentalpha;
1068                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1069                         {
1070                                 surface = texturesurfacelist[texturesurfaceindex];
1071                                 vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
1072                                 R_Mesh_VertexPointer(vertex3f);
1073                                 R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
1074                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1075                                 {
1076                                         c[0] = r;
1077                                         c[1] = g;
1078                                         c[2] = b;
1079                                         if (fogallpasses)
1080                                         {
1081                                                 VectorSubtract(v, modelorg, diff);
1082                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
1083                                                 VectorScale(c, f, c);
1084                                         }
1085                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1086                                                 c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
1087                                         else
1088                                                 c[3] = a;
1089                                 }
1090                                 GL_LockArrays(0, surface->mesh.num_vertices);
1091                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1092                                 GL_LockArrays(0, 0);
1093                         }
1094                 }
1095                 if (dodetail)
1096                 {
1097                         GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
1098                         GL_DepthMask(false);
1099                         GL_Color(1, 1, 1, 1);
1100                         memset(&m, 0, sizeof(m));
1101                         m.tex[0] = R_GetTexture(texture->skin.detail);
1102                         R_Mesh_State(&m);
1103                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1104                         {
1105                                 surface = texturesurfacelist[texturesurfaceindex];
1106                                 R_Mesh_VertexPointer(RSurf_GetVertexPointer(ent, texture, surface, modelorg));
1107                                 R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoorddetail2f);
1108                                 GL_LockArrays(0, surface->mesh.num_vertices);
1109                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1110                                 GL_LockArrays(0, 0);
1111                         }
1112                 }
1113                 if (doglow)
1114                 {
1115                         // if glow was not already done using multitexture, do it now.
1116                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1117                         GL_DepthMask(false);
1118                         memset(&m, 0, sizeof(m));
1119                         m.tex[0] = R_GetTexture(texture->skin.glow);
1120                         if (waterscrolling)
1121                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
1122                         m.pointer_color = varray_color4f;
1123                         R_Mesh_State(&m);
1124                         colorscale = 1;
1125                         r = ent->colormod[0] * colorscale;
1126                         g = ent->colormod[1] * colorscale;
1127                         b = ent->colormod[2] * colorscale;
1128                         a = texture->currentalpha;
1129                         if (fogallpasses)
1130                         {
1131                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1132                                 {
1133                                         surface = texturesurfacelist[texturesurfaceindex];
1134                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
1135                                         R_Mesh_VertexPointer(vertex3f);
1136                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
1137                                         R_Mesh_ColorPointer(varray_color4f);
1138                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1139                                         {
1140                                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1141                                                 {
1142                                                         VectorSubtract(v, modelorg, diff);
1143                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
1144                                                         c[0] = f * r;
1145                                                         c[1] = f * g;
1146                                                         c[2] = f * b;
1147                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
1148                                                 }
1149                                         }
1150                                         else
1151                                         {
1152                                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1153                                                 {
1154                                                         VectorSubtract(v, modelorg, diff);
1155                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
1156                                                         c[0] = f * r;
1157                                                         c[1] = f * g;
1158                                                         c[2] = f * b;
1159                                                         c[3] = a;
1160                                                 }
1161                                         }
1162                                         GL_LockArrays(0, surface->mesh.num_vertices);
1163                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1164                                         GL_LockArrays(0, 0);
1165                                 }
1166                         }
1167                         else
1168                         {
1169                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1170                                 {
1171                                         surface = texturesurfacelist[texturesurfaceindex];
1172                                         vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
1173                                         R_Mesh_VertexPointer(vertex3f);
1174                                         R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
1175                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1176                                         {
1177                                                 R_Mesh_ColorPointer(varray_color4f);
1178                                                 for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1179                                                 {
1180                                                         c[0] = r;
1181                                                         c[1] = g;
1182                                                         c[2] = b;
1183                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
1184                                                 }
1185                                         }
1186                                         else
1187                                         {
1188                                                 R_Mesh_ColorPointer(NULL);
1189                                                 GL_Color(r, g, b, a);
1190                                         }
1191                                         GL_LockArrays(0, surface->mesh.num_vertices);
1192                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1193                                         GL_LockArrays(0, 0);
1194                                 }
1195                         }
1196                 }
1197                 if (dofogpass)
1198                 {
1199                         // if this is opaque use alpha blend which will darken the earlier
1200                         // passes cheaply.
1201                         //
1202                         // if this is an alpha blended material, all the earlier passes
1203                         // were darkened by fog already, so we only need to add the fog
1204                         // color ontop through the fog mask texture
1205                         //
1206                         // if this is an additive blended material, all the earlier passes
1207                         // were darkened by fog already, and we should not add fog color
1208                         // (because the background was not darkened, there is no fog color
1209                         // that was lost behind it).
1210                         if (!fogallpasses)
1211                                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1212                         else
1213                                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1214                         GL_DepthMask(false);
1215                         memset(&m, 0, sizeof(m));
1216                         m.tex[0] = R_GetTexture(texture->skin.fog);
1217                         if (waterscrolling)
1218                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
1219                         R_Mesh_State(&m);
1220                         r = fogcolor[0];
1221                         g = fogcolor[1];
1222                         b = fogcolor[2];
1223                         a = texture->currentalpha;
1224                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1225                         {
1226                                 surface = texturesurfacelist[texturesurfaceindex];
1227                                 vertex3f = RSurf_GetVertexPointer(ent, texture, surface, modelorg);
1228                                 R_Mesh_VertexPointer(vertex3f);
1229                                 R_Mesh_TexCoordPointer(0, 2, surface->mesh.data_texcoordtexture2f);
1230                                 R_Mesh_ColorPointer(varray_color4f);
1231                                 //RSurf_FogPassColors_Vertex3f_Color4f(surface->mesh.data_vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], texture->currentalpha, 1, surface->mesh.num_vertices, modelorg);
1232                                 if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1233                                 {
1234                                         for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1235                                         {
1236                                                 VectorSubtract(v, modelorg, diff);
1237                                                 f = exp(fogdensity/DotProduct(diff, diff));
1238                                                 c[0] = r;
1239                                                 c[1] = g;
1240                                                 c[2] = b;
1241                                                 c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * f * a;
1242                                         }
1243                                 }
1244                                 else
1245                                 {
1246                                         for (i = 0, v = vertex3f, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1247                                         {
1248                                                 VectorSubtract(v, modelorg, diff);
1249                                                 f = exp(fogdensity/DotProduct(diff, diff));
1250                                                 c[0] = r;
1251                                                 c[1] = g;
1252                                                 c[2] = b;
1253                                                 c[3] = f * a;
1254                                         }
1255                                 }
1256                                 GL_LockArrays(0, surface->mesh.num_vertices);
1257                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1258                                 GL_LockArrays(0, 0);
1259                         }
1260                 }
1261         }
1262         if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1263                 qglEnable(GL_CULL_FACE);
1264 }
1265
1266 static void RSurfShader_Transparent_Callback(const void *calldata1, int calldata2)
1267 {
1268         const entity_render_t *ent = calldata1;
1269         const msurface_t *surface = ent->model->brush.data_surfaces + calldata2;
1270         vec3_t modelorg;
1271         texture_t *texture;
1272
1273         texture = surface->texture;
1274         if (texture->basematerialflags & MATERIALFLAG_SKY)
1275                 return; // transparent sky is too difficult
1276         R_UpdateTextureInfo(ent, texture);
1277
1278         R_Mesh_Matrix(&ent->matrix);
1279         Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
1280         R_DrawSurfaceList(ent, texture, 1, &surface, modelorg);
1281 }
1282
1283 void R_QueueSurfaceList(entity_render_t *ent, texture_t *texture, int texturenumsurfaces, const msurface_t **texturesurfacelist, const vec3_t modelorg)
1284 {
1285         int texturesurfaceindex;
1286         const msurface_t *surface;
1287         vec3_t tempcenter, center;
1288         if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
1289         {
1290                 // drawing sky transparently would be too difficult
1291                 if (!(texture->currentmaterialflags & MATERIALFLAG_SKY))
1292                 {
1293                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1294                         {
1295                                 surface = texturesurfacelist[texturesurfaceindex];
1296                                 tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
1297                                 tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
1298                                 tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
1299                                 Matrix4x4_Transform(&ent->matrix, tempcenter, center);
1300                                 R_MeshQueue_AddTransparent(ent->effects & EF_NODEPTHTEST ? r_vieworigin : center, RSurfShader_Transparent_Callback, ent, surface - ent->model->brush.data_surfaces);
1301                         }
1302                 }
1303         }
1304         else
1305                 R_DrawSurfaceList(ent, texture, texturenumsurfaces, texturesurfacelist, modelorg);
1306 }
1307
1308 void R_DrawSurfaces(entity_render_t *ent, qboolean skysurfaces)
1309 {
1310         int i, j, f, flagsmask;
1311         msurface_t *surface, **surfacechain;
1312         texture_t *t, *texture;
1313         model_t *model = ent->model;
1314         vec3_t modelorg;
1315         const int maxsurfacelist = 1024;
1316         int numsurfacelist = 0;
1317         const msurface_t *surfacelist[1024];
1318         if (model == NULL)
1319                 return;
1320         R_Mesh_Matrix(&ent->matrix);
1321         Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
1322
1323         // update light styles
1324         if (!skysurfaces && model->brushq1.light_styleupdatechains)
1325         {
1326                 for (i = 0;i < model->brushq1.light_styles;i++)
1327                 {
1328                         if (model->brushq1.light_stylevalue[i] != d_lightstylevalue[model->brushq1.light_style[i]])
1329                         {
1330                                 model->brushq1.light_stylevalue[i] = d_lightstylevalue[model->brushq1.light_style[i]];
1331                                 if ((surfacechain = model->brushq1.light_styleupdatechains[i]))
1332                                         for (;(surface = *surfacechain);surfacechain++)
1333                                                 surface->cached_dlight = true;
1334                         }
1335                 }
1336         }
1337
1338         R_UpdateAllTextureInfo(ent);
1339         flagsmask = skysurfaces ? MATERIALFLAG_SKY : (MATERIALFLAG_WATER | MATERIALFLAG_WALL);
1340         f = 0;
1341         t = NULL;
1342         texture = NULL;
1343         numsurfacelist = 0;
1344         if (ent == r_refdef.worldentity)
1345         {
1346                 for (i = 0, j = model->firstmodelsurface, surface = model->brush.data_surfaces + j;i < model->nummodelsurfaces;i++, j++, surface++)
1347                 {
1348                         if (!r_worldsurfacevisible[j])
1349                                 continue;
1350                         if (t != surface->texture)
1351                         {
1352                                 if (numsurfacelist)
1353                                 {
1354                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1355                                         numsurfacelist = 0;
1356                                 }
1357                                 t = surface->texture;
1358                                 f = t->currentmaterialflags & flagsmask;
1359                                 texture = t->currentframe;
1360                         }
1361                         if (f && surface->mesh.num_triangles)
1362                         {
1363                                 // if lightmap parameters changed, rebuild lightmap texture
1364                                 if (surface->cached_dlight && surface->lightmapinfo->samples)
1365                                         R_BuildLightMap(ent, surface);
1366                                 // add face to draw list
1367                                 surfacelist[numsurfacelist++] = surface;
1368                                 if (numsurfacelist >= maxsurfacelist)
1369                                 {
1370                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1371                                         numsurfacelist = 0;
1372                                 }
1373                         }
1374                 }
1375         }
1376         else
1377         {
1378                 for (i = 0, j = model->firstmodelsurface, surface = model->brush.data_surfaces + j;i < model->nummodelsurfaces;i++, j++, surface++)
1379                 {
1380                         if (t != surface->texture)
1381                         {
1382                                 if (numsurfacelist)
1383                                 {
1384                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1385                                         numsurfacelist = 0;
1386                                 }
1387                                 t = surface->texture;
1388                                 f = t->currentmaterialflags & flagsmask;
1389                                 texture = t->currentframe;
1390                         }
1391                         if (f && surface->mesh.num_triangles)
1392                         {
1393                                 // if lightmap parameters changed, rebuild lightmap texture
1394                                 if (surface->cached_dlight && surface->lightmapinfo->samples)
1395                                         R_BuildLightMap(ent, surface);
1396                                 // add face to draw list
1397                                 surfacelist[numsurfacelist++] = surface;
1398                                 if (numsurfacelist >= maxsurfacelist)
1399                                 {
1400                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1401                                         numsurfacelist = 0;
1402                                 }
1403                         }
1404                 }
1405         }
1406         if (numsurfacelist)
1407                 R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1408 }
1409
1410 static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
1411 {
1412         int i;
1413         float *v;
1414         rmeshstate_t m;
1415         const mportal_t *portal = calldata1;
1416         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1417         GL_DepthMask(false);
1418         GL_DepthTest(true);
1419         R_Mesh_Matrix(&r_identitymatrix);
1420
1421         memset(&m, 0, sizeof(m));
1422         m.pointer_vertex = varray_vertex3f;
1423         R_Mesh_State(&m);
1424
1425         i = calldata2;
1426         GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
1427                          ((i & 0x0038) >> 3) * (1.0f / 7.0f),
1428                          ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
1429                          0.125f);
1430         if (PlaneDiff(r_vieworigin, (&portal->plane)) < 0)
1431         {
1432                 for (i = portal->numpoints - 1, v = varray_vertex3f;i >= 0;i--, v += 3)
1433                         VectorCopy(portal->points[i].position, v);
1434         }
1435         else
1436                 for (i = 0, v = varray_vertex3f;i < portal->numpoints;i++, v += 3)
1437                         VectorCopy(portal->points[i].position, v);
1438         GL_LockArrays(0, portal->numpoints);
1439         R_Mesh_Draw(portal->numpoints, portal->numpoints - 2, polygonelements);
1440         GL_LockArrays(0, 0);
1441 }
1442
1443 // LordHavoc: this is just a nice debugging tool, very slow
1444 static void R_DrawPortals(void)
1445 {
1446         int i, portalnum;
1447         mportal_t *portal;
1448         float center[3], f;
1449         model_t *model = r_refdef.worldmodel;
1450         if (model == NULL)
1451                 return;
1452         for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
1453         {
1454                 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
1455                 if (!R_CullBox(portal->mins, portal->maxs))
1456                 {
1457                         VectorClear(center);
1458                         for (i = 0;i < portal->numpoints;i++)
1459                                 VectorAdd(center, portal->points[i].position, center);
1460                         f = ixtable[portal->numpoints];
1461                         VectorScale(center, f, center);
1462                         R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, portal, portalnum);
1463                 }
1464         }
1465 }
1466
1467 static void R_DrawCollisionBrush(colbrushf_t *brush)
1468 {
1469         int i;
1470         rmeshstate_t m;
1471         memset(&m, 0, sizeof(m));
1472         m.pointer_vertex = brush->points->v;
1473         R_Mesh_State(&m);
1474         i = (int)(((size_t)brush) / sizeof(colbrushf_t));
1475         GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
1476         GL_LockArrays(0, brush->numpoints);
1477         R_Mesh_Draw(brush->numpoints, brush->numtriangles, brush->elements);
1478         GL_LockArrays(0, 0);
1479 }
1480
1481 static void R_DrawCollisionSurface(entity_render_t *ent, msurface_t *surface)
1482 {
1483         int i;
1484         rmeshstate_t m;
1485         if (!surface->num_collisiontriangles)
1486                 return;
1487         memset(&m, 0, sizeof(m));
1488         m.pointer_vertex = surface->data_collisionvertex3f;
1489         R_Mesh_State(&m);
1490         i = (int)(((size_t)surface) / sizeof(msurface_t));
1491         GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
1492         GL_LockArrays(0, surface->num_collisionvertices);
1493         R_Mesh_Draw(surface->num_collisionvertices, surface->num_collisiontriangles, surface->data_collisionelement3i);
1494         GL_LockArrays(0, 0);
1495 }
1496
1497 void R_WorldVisibility(void)
1498 {
1499         int i, j, *mark;
1500         mleaf_t *leaf;
1501         mleaf_t *viewleaf;
1502         model_t *model = r_refdef.worldmodel;
1503
1504         if (!model)
1505                 return;
1506
1507         // if possible find the leaf the view origin is in
1508         viewleaf = model->brushq1.PointInLeaf ? model->brushq1.PointInLeaf(model, r_vieworigin) : NULL;
1509         // if possible fetch the visible cluster bits
1510         if (model->brush.FatPVS)
1511                 model->brush.FatPVS(model, r_vieworigin, 2, r_pvsbits, sizeof(r_pvsbits));
1512
1513         // clear the visible surface and leaf flags arrays
1514         memset(r_worldsurfacevisible, 0, model->brush.num_surfaces);
1515         memset(r_worldleafvisible, 0, model->brush.num_leafs);
1516
1517         // if the user prefers surfaceworldnode (testing?) or the viewleaf could
1518         // not be found, or the viewleaf is not part of the visible world
1519         // (floating around in the void), use the pvs method
1520         if (r_surfaceworldnode.integer || !viewleaf || viewleaf->clusterindex < 0)
1521         {
1522                 // pvs method:
1523                 // similar to quake's RecursiveWorldNode but without cache misses
1524                 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
1525                 {
1526                         // if leaf is in current pvs and on the screen, mark its surfaces
1527                         if (CHECKPVSBIT(r_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
1528                         {
1529                                 c_leafs++;
1530                                 r_worldleafvisible[j] = true;
1531                                 if (leaf->numleafsurfaces)
1532                                         for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
1533                                                 r_worldsurfacevisible[*mark] = true;
1534                         }
1535                 }
1536         }
1537         else
1538         {
1539                 int leafstackpos;
1540                 mportal_t *p;
1541                 mleaf_t *leafstack[8192];
1542                 // portal method:
1543                 // follows portals leading outward from viewleaf, does not venture
1544                 // offscreen or into leafs that are not visible, faster than Quake's
1545                 // RecursiveWorldNode and vastly better in unvised maps, often culls a
1546                 // lot of surface that pvs alone would miss
1547                 leafstack[0] = viewleaf;
1548                 leafstackpos = 1;
1549                 while (leafstackpos)
1550                 {
1551                         c_leafs++;
1552                         leaf = leafstack[--leafstackpos];
1553                         r_worldleafvisible[leaf - model->brush.data_leafs] = true;
1554                         // mark any surfaces bounding this leaf
1555                         if (leaf->numleafsurfaces)
1556                                 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
1557                                         r_worldsurfacevisible[*mark] = true;
1558                         // follow portals into other leafs
1559                         // the checks are:
1560                         // if viewer is behind portal (portal faces outward into the scene)
1561                         // and the portal polygon's bounding box is on the screen
1562                         // and the leaf has not been visited yet
1563                         // and the leaf is visible in the pvs
1564                         // (the first two checks won't cause as many cache misses as the leaf checks)
1565                         for (p = leaf->portals;p;p = p->next)
1566                                 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))
1567                                         leafstack[leafstackpos++] = p->past;
1568                 }
1569         }
1570
1571         if (r_drawportals.integer)
1572                 R_DrawPortals();
1573 }
1574
1575 void R_Q1BSP_DrawSky(entity_render_t *ent)
1576 {
1577         if (ent->model == NULL)
1578                 return;
1579         if (r_drawcollisionbrushes.integer < 2)
1580                 R_DrawSurfaces(ent, true);
1581 }
1582
1583 void R_Q1BSP_Draw(entity_render_t *ent)
1584 {
1585         if (ent->model == NULL)
1586                 return;
1587         c_bmodels++;
1588         if (r_drawcollisionbrushes.integer < 2)
1589                 R_DrawSurfaces(ent, false);
1590         if (r_drawcollisionbrushes.integer >= 1 && ent->model->brush.num_brushes)
1591         {
1592                 int i;
1593                 model_t *model = ent->model;
1594                 msurface_t *surface;
1595                 q3mbrush_t *brush;
1596                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1597                 GL_DepthMask(false);
1598                 GL_DepthTest(true);
1599                 qglPolygonOffset(r_drawcollisionbrushes_polygonfactor.value, r_drawcollisionbrushes_polygonoffset.value);
1600                 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
1601                         if (brush->colbrushf && brush->colbrushf->numtriangles)
1602                                 R_DrawCollisionBrush(brush->colbrushf);
1603                 for (i = 0, surface = model->brush.data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
1604                         if (surface->num_collisiontriangles)
1605                                 R_DrawCollisionSurface(ent, surface);
1606                 qglPolygonOffset(0, 0);
1607         }
1608 }
1609
1610 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)
1611 {
1612         model_t *model = ent->model;
1613         vec3_t lightmins, lightmaxs;
1614         int t, leafindex, leafsurfaceindex, surfaceindex, triangleindex, outnumclusters = 0, outnumsurfaces = 0;
1615         const int *e;
1616         const float *v[3];
1617         msurface_t *surface;
1618         mleaf_t *leaf;
1619         const qbyte *pvs;
1620         lightmins[0] = relativelightorigin[0] - lightradius;
1621         lightmins[1] = relativelightorigin[1] - lightradius;
1622         lightmins[2] = relativelightorigin[2] - lightradius;
1623         lightmaxs[0] = relativelightorigin[0] + lightradius;
1624         lightmaxs[1] = relativelightorigin[1] + lightradius;
1625         lightmaxs[2] = relativelightorigin[2] + lightradius;
1626         *outnumclusterspointer = 0;
1627         *outnumsurfacespointer = 0;
1628         memset(outclusterpvs, 0, model->brush.num_pvsclusterbytes);
1629         memset(outsurfacepvs, 0, (model->nummodelsurfaces + 7) >> 3);
1630         if (model == NULL)
1631         {
1632                 VectorCopy(lightmins, outmins);
1633                 VectorCopy(lightmaxs, outmaxs);
1634                 return;
1635         }
1636         VectorCopy(relativelightorigin, outmins);
1637         VectorCopy(relativelightorigin, outmaxs);
1638         if (model->brush.GetPVS)
1639                 pvs = model->brush.GetPVS(model, relativelightorigin);
1640         else
1641                 pvs = NULL;
1642         R_UpdateAllTextureInfo(ent);
1643         // FIXME: use BSP recursion as lights are often small
1644         for (leafindex = 0, leaf = model->brush.data_leafs;leafindex < model->brush.num_leafs;leafindex++, leaf++)
1645         {
1646                 if (BoxesOverlap(lightmins, lightmaxs, leaf->mins, leaf->maxs) && (pvs == NULL || CHECKPVSBIT(pvs, leaf->clusterindex)))
1647                 {
1648                         outmins[0] = min(outmins[0], leaf->mins[0]);
1649                         outmins[1] = min(outmins[1], leaf->mins[1]);
1650                         outmins[2] = min(outmins[2], leaf->mins[2]);
1651                         outmaxs[0] = max(outmaxs[0], leaf->maxs[0]);
1652                         outmaxs[1] = max(outmaxs[1], leaf->maxs[1]);
1653                         outmaxs[2] = max(outmaxs[2], leaf->maxs[2]);
1654                         if (outclusterpvs)
1655                         {
1656                                 if (!CHECKPVSBIT(outclusterpvs, leaf->clusterindex))
1657                                 {
1658                                         SETPVSBIT(outclusterpvs, leaf->clusterindex);
1659                                         outclusterlist[outnumclusters++] = leaf->clusterindex;
1660                                 }
1661                         }
1662                         if (outsurfacepvs)
1663                         {
1664                                 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
1665                                 {
1666                                         surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
1667                                         if (!CHECKPVSBIT(outsurfacepvs, surfaceindex))
1668                                         {
1669                                                 surface = model->brush.data_surfaces + surfaceindex;
1670                                                 if (BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1671                                                 if ((surface->texture->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1672                                                 {
1673                                                         for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->mesh.num_triangles;triangleindex++, t++, e += 3)
1674                                                         {
1675                                                                 v[0] = model->brush.shadowmesh->vertex3f + e[0] * 3;
1676                                                                 v[1] = model->brush.shadowmesh->vertex3f + e[1] * 3;
1677                                                                 v[2] = model->brush.shadowmesh->vertex3f + e[2] * 3;
1678                                                                 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])))
1679                                                                 {
1680                                                                         SETPVSBIT(outsurfacepvs, surfaceindex);
1681                                                                         outsurfacelist[outnumsurfaces++] = surfaceindex;
1682                                                                         break;
1683                                                                 }
1684                                                         }
1685                                                 }
1686                                         }
1687                                 }
1688                         }
1689                 }
1690         }
1691
1692         // limit combined leaf box to light boundaries
1693         outmins[0] = max(outmins[0], lightmins[0]);
1694         outmins[1] = max(outmins[1], lightmins[1]);
1695         outmins[2] = max(outmins[2], lightmins[2]);
1696         outmaxs[0] = min(outmaxs[0], lightmaxs[0]);
1697         outmaxs[1] = min(outmaxs[1], lightmaxs[1]);
1698         outmaxs[2] = min(outmaxs[2], lightmaxs[2]);
1699
1700         *outnumclusterspointer = outnumclusters;
1701         *outnumsurfacespointer = outnumsurfaces;
1702 }
1703
1704 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)
1705 {
1706         model_t *model = ent->model;
1707         msurface_t *surface;
1708         int surfacelistindex;
1709         if (r_drawcollisionbrushes.integer < 2)
1710         {
1711                 R_Mesh_Matrix(&ent->matrix);
1712                 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1713                 if (!r_shadow_compilingrtlight)
1714                         R_UpdateAllTextureInfo(ent);
1715                 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1716                 {
1717                         surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
1718                         if ((surface->texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
1719                                 continue;
1720                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1721                                 continue;
1722                         R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->mesh.num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
1723                 }
1724                 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);
1725         }
1726 }
1727
1728 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)
1729 {
1730         model_t *model = ent->model;
1731         msurface_t *surface;
1732         texture_t *t;
1733         int surfacelistindex;
1734         if (r_drawcollisionbrushes.integer < 2)
1735         {
1736                 R_Mesh_Matrix(&ent->matrix);
1737                 if (!r_shadow_compilingrtlight)
1738                         R_UpdateAllTextureInfo(ent);
1739                 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1740                 {
1741                         surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
1742                         if (surface->texture->basematerialflags & MATERIALFLAG_NODRAW || !surface->mesh.num_triangles)
1743                                 continue;
1744                         if (r_shadow_compilingrtlight)
1745                         {
1746                                 // if compiling an rtlight, capture the mesh
1747                                 t = surface->texture;
1748                                 if ((t->basematerialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1749                                         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->mesh.data_vertex3f, surface->mesh.data_svector3f, surface->mesh.data_tvector3f, surface->mesh.data_normal3f, surface->mesh.data_texcoordtexture2f, surface->mesh.num_triangles, surface->mesh.data_element3i);
1750                         }
1751                         else if (ent != r_refdef.worldentity || r_worldsurfacevisible[surfacelist[surfacelistindex]])
1752                         {
1753                                 t = surface->texture->currentframe;
1754                                 // FIXME: transparent surfaces need to be lit later
1755                                 if ((t->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1756                                 {
1757                                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1758                                                 qglDisable(GL_CULL_FACE);
1759                                         R_Shadow_RenderLighting(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i, surface->mesh.data_vertex3f, surface->mesh.data_svector3f, surface->mesh.data_tvector3f, surface->mesh.data_normal3f, surface->mesh.data_texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightcolor, matrix_modeltolight, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.base, t->skin.nmap, t->skin.gloss, lightcubemap, ambientscale, diffusescale, specularscale);
1760                                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1761                                                 qglEnable(GL_CULL_FACE);
1762                                 }
1763                         }
1764                 }
1765         }
1766 }
1767
1768 #if 0
1769 static void gl_surf_start(void)
1770 {
1771 }
1772
1773 static void gl_surf_shutdown(void)
1774 {
1775 }
1776
1777 static void gl_surf_newmap(void)
1778 {
1779 }
1780 #endif
1781
1782 void GL_Surf_Init(void)
1783 {
1784
1785         Cvar_RegisterVariable(&r_ambient);
1786         Cvar_RegisterVariable(&r_drawportals);
1787         Cvar_RegisterVariable(&r_testvis);
1788         Cvar_RegisterVariable(&r_detailtextures);
1789         Cvar_RegisterVariable(&r_surfaceworldnode);
1790         Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonfactor);
1791         Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonoffset);
1792         Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
1793         Cvar_RegisterVariable(&gl_lightmaps);
1794
1795         //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);
1796 }
1797