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->extents[0]>>4)+1;
  65         tmax = (surface->extents[1]>>4)+1;
  66         size = smax*tmax;
  67         size3 = size*3;
  68         lightmap = surface->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->styles[maps] != 255;maps++, lightmap += size3)
  87                                 for (scale = d_lightstylevalue[surface->styles[maps]], i = 0;i < size3;i++)
  88                                         bl[i] += lightmap[i] * scale;
  89                 }
  90         }
  91
  92         stain = surface->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->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->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->stainsamples)
 174                 {
 175                         smax = (surface->extents[0] >> 4) + 1;
 176                         tmax = (surface->extents[1] >> 4) + 1;
 177
 178                         impacts = DotProduct (impact, surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3] - surface->texturemins[0];
 179                         impactt = DotProduct (impact, surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3] - surface->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->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)
 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 float *RSurf_GetVertexPointer(const entity_render_t *ent, const msurface_t *surface)
 299 {
 300         if (surface->texture->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
 301         {
 302                 texture_t *texture = surface->texture;
 303                 int i, j;
 304                 float center[3], center2[3], forward[3], right[3], up[3], v[4][3];
 305                 matrix4x4_t matrix1, imatrix1;
 306                 R_Mesh_Matrix(&r_identitymatrix);
 307                 // a single autosprite surface can contain multiple sprites...
 308                 for (j = 0;j < surface->mesh.num_vertices - 3;j += 4)
 309                 {
 310                         VectorClear(center);
 311                         for (i = 0;i < 4;i++)
 312                                 VectorAdd(center, surface->mesh.data_vertex3f + (j+i) * 3, center);
 313                         VectorScale(center, 0.25f, center);
 314                         Matrix4x4_Transform(&ent->matrix, center, center2);
 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                         if (texture->textureflags & Q3TEXTUREFLAG_AUTOSPRITE2)
 321                         {
 322                                 forward[0] = r_vieworigin[0] - center2[0];
 323                                 forward[1] = r_vieworigin[1] - center2[1];
 324                                 forward[2] = 0;
 325                                 VectorNormalize(forward);
 326                                 right[0] = forward[1];
 327                                 right[1] = -forward[0];
 328                                 right[2] = 0;
 329                                 up[0] = 0;
 330                                 up[1] = 0;
 331                                 up[2] = 1;
 332                         }
 333                         else
 334                         {
 335                                 VectorCopy(r_viewforward, forward);
 336                                 VectorCopy(r_viewright, right);
 337                                 VectorCopy(r_viewup, up);
 338                         }
 339                         for (i = 0;i < 4;i++)
 340                                 VectorMAMAMAM(1, center2, v[i][0], forward, v[i][1], right, v[i][2], up, varray_vertex3f + (i+j) * 3);
 341                 }
 342                 return varray_vertex3f;
 343         }
 344         else
 345                 return surface->mesh.data_vertex3f;
 346 }
 347
 348 void R_UpdateTextureInfo(const entity_render_t *ent, texture_t *t)
 349 {
 350         // we don't need to set currentframe if t->animated is false because
 351         // it was already set up by the texture loader for non-animating
 352         if (t->animated)
 353         {
 354                 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];
 355                 t = t->currentframe;
 356         }
 357         t->currentmaterialflags = t->basematerialflags;
 358         t->currentalpha = ent->alpha;
 359         if (t->basematerialflags & MATERIALFLAG_WATERALPHA)
 360                 t->currentalpha *= r_wateralpha.value;
 361         if (!(ent->flags & RENDER_LIGHT))
 362                 t->currentmaterialflags |= MATERIALFLAG_FULLBRIGHT;
 363         if (ent->effects & EF_ADDITIVE)
 364                 t->currentmaterialflags |= MATERIALFLAG_ADD | MATERIALFLAG_TRANSPARENT;
 365         else if (t->currentalpha < 1)
 366                 t->currentmaterialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
 367 }
 368
 369 matrix4x4_t r_surf_waterscrollmatrix;
 370
 371 void R_UpdateAllTextureInfo(entity_render_t *ent)
 372 {
 373         int i;
 374         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);
 375         if (ent->model)
 376                 for (i = 0;i < ent->model->brush.num_textures;i++)
 377                         R_UpdateTextureInfo(ent, ent->model->brush.data_textures + i);
 378 }
 379
 380 static void R_DrawSurfaceList(const entity_render_t *ent, texture_t *texture, int texturenumsurfaces, const msurface_t **texturesurfacelist, const vec3_t modelorg)
 381 {
 382         int i;
 383         int texturesurfaceindex;
 384         const float *v;
 385         float *c;
 386         float diff[3];
 387         float f, r, g, b, a, base, colorscale;
 388         const msurface_t *surface;
 389         qboolean dolightmap;
 390         qboolean dobase;
 391         qboolean doambient;
 392         qboolean dodetail;
 393         qboolean doglow;
 394         qboolean dofogpass;
 395         qboolean fogallpasses;
 396         qboolean waterscrolling;
 397         rmeshstate_t m;
 398         texture = texture->currentframe;
 399         if (texture->currentmaterialflags & MATERIALFLAG_NODRAW)
 400                 return;
 401         c_faces += texturenumsurfaces;
 402         // gl_lightmaps debugging mode skips normal texturing
 403         if (gl_lightmaps.integer)
 404         {
 405                 GL_BlendFunc(GL_ONE, GL_ZERO);
 406                 GL_DepthMask(true);
 407                 GL_DepthTest(true);
 408                 qglDisable(GL_CULL_FACE);
 409                 GL_Color(1, 1, 1, 1);
 410                 memset(&m, 0, sizeof(m));
 411                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 412                 {
 413                         surface = texturesurfacelist[texturesurfaceindex];
 414                         m.tex[0] = R_GetTexture(surface->lightmaptexture);
 415                         m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
 416                         if (surface->lightmaptexture)
 417                         {
 418                                 GL_Color(1, 1, 1, 1);
 419                                 m.pointer_color = NULL;
 420                         }
 421                         else
 422                                 m.pointer_color = surface->mesh.data_lightmapcolor4f;
 423                         m.pointer_vertex = surface->mesh.data_vertex3f;
 424                         R_Mesh_State(&m);
 425                         GL_LockArrays(0, surface->mesh.num_vertices);
 426                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 427                         GL_LockArrays(0, 0);
 428                 }
 429                 qglEnable(GL_CULL_FACE);
 430                 return;
 431         }
 432         GL_DepthTest(!(texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST));
 433         GL_DepthMask(!(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT));
 434         if (texture->currentmaterialflags & MATERIALFLAG_ADD)
 435                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 436         else if (texture->currentmaterialflags & MATERIALFLAG_ALPHA)
 437                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 438         else
 439                 GL_BlendFunc(GL_ONE, GL_ZERO);
 440         // water waterscrolling in texture matrix
 441         waterscrolling = (texture->currentmaterialflags & MATERIALFLAG_WATER) && r_waterscroll.value != 0;
 442         if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
 443                 qglDisable(GL_CULL_FACE);
 444         if (texture->currentmaterialflags & MATERIALFLAG_SKY)
 445         {
 446                 if (skyrendernow)
 447                 {
 448                         skyrendernow = false;
 449                         if (skyrendermasked)
 450                                 R_Sky();
 451                 }
 452                 // LordHavoc: HalfLife maps have freaky skypolys...
 453                 if (!ent->model->brush.ishlbsp)
 454                 {
 455                         R_Mesh_Matrix(&ent->matrix);
 456                         GL_Color(fogcolor[0], fogcolor[1], fogcolor[2], 1);
 457                         if (skyrendermasked)
 458                         {
 459                                 // depth-only (masking)
 460                                 GL_ColorMask(0,0,0,0);
 461                                 // just to make sure that braindead drivers don't draw anything
 462                                 // despite that colormask...
 463                                 GL_BlendFunc(GL_ZERO, GL_ONE);
 464                         }
 465                         else
 466                         {
 467                                 // fog sky
 468                                 GL_BlendFunc(GL_ONE, GL_ZERO);
 469                         }
 470                         GL_DepthMask(true);
 471                         GL_DepthTest(true);
 472                         memset(&m, 0, sizeof(m));
 473                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 474                         {
 475                                 surface = texturesurfacelist[texturesurfaceindex];
 476                                 m.pointer_vertex = surface->mesh.data_vertex3f;
 477                                 R_Mesh_State(&m);
 478                                 GL_LockArrays(0, surface->mesh.num_vertices);
 479                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 480                                 GL_LockArrays(0, 0);
 481                         }
 482                         GL_ColorMask(r_refdef.colormask[0], r_refdef.colormask[1], r_refdef.colormask[2], 1);
 483                 }
 484         }
 485         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)
 486         {
 487                 // NVIDIA Geforce3 distortion texture shader on water
 488                 float args[4] = {0.05f,0,0,0.04f};
 489                 memset(&m, 0, sizeof(m));
 490                 m.tex[0] = R_GetTexture(mod_shared_distorttexture[(int)(r_refdef.time * 16)&63]);
 491                 m.tex[1] = R_GetTexture(texture->skin.base);
 492                 m.texcombinergb[0] = GL_REPLACE;
 493                 m.texcombinergb[1] = GL_REPLACE;
 494                 Matrix4x4_CreateFromQuakeEntity(&m.texmatrix[0], 0, 0, 0, 0, 0, 0, r_watershader.value);
 495                 m.texmatrix[1] = r_surf_waterscrollmatrix;
 496
 497                 GL_ActiveTexture(0);
 498                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
 499                 GL_ActiveTexture(1);
 500                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_OFFSET_TEXTURE_2D_NV);
 501                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB);
 502                 qglTexEnvfv(GL_TEXTURE_SHADER_NV, GL_OFFSET_TEXTURE_MATRIX_NV, &args[0]);
 503                 qglEnable(GL_TEXTURE_SHADER_NV);
 504
 505                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 506                 {
 507                         surface = texturesurfacelist[texturesurfaceindex];
 508                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 509                         m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
 510                         m.pointer_texcoord[1] = surface->mesh.data_texcoordtexture2f;
 511                         R_Mesh_State(&m);
 512                         GL_LockArrays(0, surface->mesh.num_vertices);
 513                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 514                         GL_LockArrays(0, 0);
 515                 }
 516
 517                 qglDisable(GL_TEXTURE_SHADER_NV);
 518                 qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
 519                 GL_ActiveTexture(0);
 520         }
 521         else if (texture->currentmaterialflags & (MATERIALFLAG_WATER | MATERIALFLAG_WALL))
 522         {
 523                 // normal surface (wall or water)
 524                 dobase = true;
 525                 dolightmap = !(texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT);
 526                 doambient = r_ambient.value >= (1/64.0f);
 527                 dodetail = r_detailtextures.integer && texture->skin.detail != NULL && !(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT);
 528                 doglow = texture->skin.glow != NULL;
 529                 dofogpass = fogenabled && !(texture->currentmaterialflags & MATERIALFLAG_ADD);
 530                 fogallpasses = fogenabled && !(texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT);
 531                 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
 532                 {
 533                         if (dobase && dolightmap && gl_combine.integer)
 534                         {
 535                                 dobase = false;
 536                                 memset(&m, 0, sizeof(m));
 537                                 m.tex[1] = R_GetTexture(texture->skin.base);
 538                                 if (waterscrolling)
 539                                         m.texmatrix[1] = r_surf_waterscrollmatrix;
 540                                 m.texrgbscale[1] = 2;
 541                                 m.pointer_color = varray_color4f;
 542                                 colorscale = 1;
 543                                 r = ent->colormod[0] * colorscale;
 544                                 g = ent->colormod[1] * colorscale;
 545                                 b = ent->colormod[2] * colorscale;
 546                                 a = texture->currentalpha;
 547                                 base = r_ambient.value * (1.0f / 64.0f);
 548                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 549                                 {
 550                                         surface = texturesurfacelist[texturesurfaceindex];
 551                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 552                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
 553                                         m.pointer_texcoord[1] = surface->mesh.data_texcoordtexture2f;
 554                                         if (surface->lightmaptexture)
 555                                         {
 556                                                 m.tex[0] = R_GetTexture(surface->lightmaptexture);
 557                                                 if (fogallpasses)
 558                                                 {
 559                                                         m.pointer_color = varray_color4f;
 560                                                         for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 561                                                         {
 562                                                                 VectorSubtract(v, modelorg, diff);
 563                                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
 564                                                                 c[0] = f * r;
 565                                                                 c[1] = f * g;
 566                                                                 c[2] = f * b;
 567                                                                 c[3] = a;
 568                                                         }
 569                                                 }
 570                                                 else
 571                                                 {
 572                                                         m.pointer_color = NULL;
 573                                                         GL_Color(r, g, b, a);
 574                                                 }
 575                                         }
 576                                         else
 577                                         {
 578                                                 m.tex[0] = R_GetTexture(r_texture_white);
 579                                                 m.pointer_color = varray_color4f;
 580                                                 if (surface->styles[0] != 255)
 581                                                 {
 582                                                         for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 583                                                         {
 584                                                                 c[0] = 0;
 585                                                                 c[1] = 0;
 586                                                                 c[2] = 0;
 587                                                                 if (surface->styles[0] != 255)
 588                                                                 {
 589                                                                         if (surface->mesh.data_lightmapcolor4f)
 590                                                                         {
 591                                                                                 float scale = d_lightstylevalue[surface->styles[0]] * (1.0f / 128.0f);
 592                                                                                 VectorMA(c, scale, surface->mesh.data_lightmapcolor4f + i*4, c);
 593                                                                         }
 594                                                                         else if (surface->mesh.data_lightmapoffsets)
 595                                                                         {
 596                                                                                 const qbyte *lm = surface->samples + surface->mesh.data_lightmapoffsets[i];
 597                                                                                 float scale = d_lightstylevalue[surface->styles[0]] * (1.0f / 32768.0f);
 598                                                                                 VectorMA(c, scale, lm, c);
 599                                                                                 if (surface->styles[1] != 255)
 600                                                                                 {
 601                                                                                         int size3 = ((surface->extents[0]>>4)+1)*((surface->extents[1]>>4)+1)*3;
 602                                                                                         lm += size3;
 603                                                                                         scale = d_lightstylevalue[surface->styles[1]] * (1.0f / 32768.0f);
 604                                                                                         VectorMA(c, scale, lm, c);
 605                                                                                         if (surface->styles[2] != 255)
 606                                                                                         {
 607                                                                                                 lm += size3;
 608                                                                                                 scale = d_lightstylevalue[surface->styles[2]] * (1.0f / 32768.0f);
 609                                                                                                 VectorMA(c, scale, lm, c);
 610                                                                                                 if (surface->styles[3] != 255)
 611                                                                                                 {
 612                                                                                                         lm += size3;
 613                                                                                                         scale = d_lightstylevalue[surface->styles[3]] * (1.0f / 32768.0f);
 614                                                                                                         VectorMA(c, scale, lm, c);
 615                                                                                                 }
 616                                                                                         }
 617                                                                                 }
 618                                                                         }
 619                                                                 }
 620                                                                 c[0] *= r;
 621                                                                 c[1] *= g;
 622                                                                 c[2] *= b;
 623                                                                 if (fogallpasses)
 624                                                                 {
 625                                                                         VectorSubtract(v, modelorg, diff);
 626                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 627                                                                         VectorScale(c, f, c);
 628                                                                 }
 629                                                                 if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 630                                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 631                                                                 else
 632                                                                         c[3] = a;
 633                                                         }
 634                                                 }
 635                                                 else
 636                                                 {
 637                                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 638                                                         {
 639                                                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 640                                                                 {
 641                                                                         c[0] = 0;
 642                                                                         c[1] = 0;
 643                                                                         c[2] = 0;
 644                                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 645                                                                 }
 646                                                         }
 647                                                         else
 648                                                         {
 649                                                                 m.pointer_color = NULL;
 650                                                                 GL_Color(0, 0, 0, a);
 651                                                         }
 652                                                 }
 653                                         }
 654                                         R_Mesh_State(&m);
 655                                         GL_LockArrays(0, surface->mesh.num_vertices);
 656                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 657                                         GL_LockArrays(0, 0);
 658                                 }
 659                         }
 660                         if (dobase)
 661                         {
 662                                 dobase = false;
 663                                 memset(&m, 0, sizeof(m));
 664                                 m.tex[0] = R_GetTexture(texture->skin.base);
 665                                 if (waterscrolling)
 666                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
 667                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
 668                                 m.pointer_color = varray_color4f;
 669                                 colorscale = 1;
 670                                 if (gl_combine.integer)
 671                                 {
 672                                         m.texrgbscale[0] = 4;
 673                                         colorscale *= 0.25f;
 674                                 }
 675                                 r = ent->colormod[0] * colorscale;
 676                                 g = ent->colormod[1] * colorscale;
 677                                 b = ent->colormod[2] * colorscale;
 678                                 a = texture->currentalpha;
 679                                 if (dolightmap)
 680                                 {
 681                                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 682                                         {
 683                                                 surface = texturesurfacelist[texturesurfaceindex];
 684                                                 m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 685                                                 m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
 686                                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 687                                                 {
 688                                                         c[0] = 0;
 689                                                         c[1] = 0;
 690                                                         c[2] = 0;
 691                                                         if (surface->styles[0] != 255)
 692                                                         {
 693                                                                 if (surface->mesh.data_lightmapcolor4f)
 694                                                                 {
 695                                                                         float scale = d_lightstylevalue[surface->styles[0]] * (1.0f / 128.0f);
 696                                                                         VectorMA(c, scale, surface->mesh.data_lightmapcolor4f + i*4, c);
 697                                                                 }
 698                                                                 else if (surface->mesh.data_lightmapoffsets)
 699                                                                 {
 700                                                                         const qbyte *lm = surface->samples + surface->mesh.data_lightmapoffsets[i];
 701                                                                         float scale = d_lightstylevalue[surface->styles[0]] * (1.0f / 32768.0f);
 702                                                                         VectorMA(c, scale, lm, c);
 703                                                                         if (surface->styles[1] != 255)
 704                                                                         {
 705                                                                                 int size3 = ((surface->extents[0]>>4)+1)*((surface->extents[1]>>4)+1)*3;
 706                                                                                 lm += size3;
 707                                                                                 scale = d_lightstylevalue[surface->styles[1]] * (1.0f / 32768.0f);
 708                                                                                 VectorMA(c, scale, lm, c);
 709                                                                                 if (surface->styles[2] != 255)
 710                                                                                 {
 711                                                                                         lm += size3;
 712                                                                                         scale = d_lightstylevalue[surface->styles[2]] * (1.0f / 32768.0f);
 713                                                                                         VectorMA(c, scale, lm, c);
 714                                                                                         if (surface->styles[3] != 255)
 715                                                                                         {
 716                                                                                                 lm += size3;
 717                                                                                                 scale = d_lightstylevalue[surface->styles[3]] * (1.0f / 32768.0f);
 718                                                                                                 VectorMA(c, scale, lm, c);
 719                                                                                         }
 720                                                                                 }
 721                                                                         }
 722                                                                 }
 723                                                         }
 724                                                         c[0] *= r;
 725                                                         c[1] *= g;
 726                                                         c[2] *= b;
 727                                                         if (fogallpasses)
 728                                                         {
 729                                                                 VectorSubtract(v, modelorg, diff);
 730                                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
 731                                                                 VectorScale(c, f, c);
 732                                                         }
 733                                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 734                                                                 c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 735                                                         else
 736                                                                 c[3] = a;
 737                                                 }
 738                                                 R_Mesh_State(&m);
 739                                                 GL_LockArrays(0, surface->mesh.num_vertices);
 740                                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 741                                                 GL_LockArrays(0, 0);
 742                                         }
 743                                 }
 744                                 else
 745                                 {
 746                                         if (fogallpasses)
 747                                         {
 748                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 749                                                 {
 750                                                         surface = texturesurfacelist[texturesurfaceindex];
 751                                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 752                                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
 753                                                         if (m.tex[1])
 754                                                                 m.pointer_texcoord[1] = surface->mesh.data_texcoordtexture2f;
 755                                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 756                                                         {
 757                                                                 m.pointer_color = varray_color4f;
 758                                                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 759                                                                 {
 760                                                                         VectorSubtract(v, modelorg, diff);
 761                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 762                                                                         c[0] = r * f;
 763                                                                         c[1] = g * f;
 764                                                                         c[2] = b * f;
 765                                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 766                                                                 }
 767                                                         }
 768                                                         else
 769                                                         {
 770                                                                 m.pointer_color = varray_color4f;
 771                                                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 772                                                                 {
 773                                                                         VectorSubtract(v, modelorg, diff);
 774                                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
 775                                                                         c[0] = r * f;
 776                                                                         c[1] = g * f;
 777                                                                         c[2] = b * f;
 778                                                                         c[3] = a;
 779                                                                 }
 780                                                         }
 781                                                         R_Mesh_State(&m);
 782                                                         GL_LockArrays(0, surface->mesh.num_vertices);
 783                                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 784                                                         GL_LockArrays(0, 0);
 785                                                 }
 786                                         }
 787                                         else
 788                                         {
 789                                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 790                                                 {
 791                                                         surface = texturesurfacelist[texturesurfaceindex];
 792                                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 793                                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
 794                                                         if (m.tex[1])
 795                                                                 m.pointer_texcoord[1] = surface->mesh.data_texcoordtexture2f;
 796                                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 797                                                         {
 798                                                                 m.pointer_color = varray_color4f;
 799                                                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 800                                                                 {
 801                                                                         c[0] = r;
 802                                                                         c[1] = g;
 803                                                                         c[2] = b;
 804                                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 805                                                                 }
 806                                                         }
 807                                                         else
 808                                                         {
 809                                                                 m.pointer_color = NULL;
 810                                                                 GL_Color(r, g, b, a);
 811                                                         }
 812                                                         R_Mesh_State(&m);
 813                                                         GL_LockArrays(0, surface->mesh.num_vertices);
 814                                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 815                                                         GL_LockArrays(0, 0);
 816                                                 }
 817                                         }
 818                                 }
 819                         }
 820                 }
 821                 else
 822                 {
 823                         if (!dolightmap && dobase)
 824                         {
 825                                 dolightmap = false;
 826                                 dobase = false;
 827                                 GL_Color(ent->colormod[0], ent->colormod[1], ent->colormod[2], 1);
 828                                 memset(&m, 0, sizeof(m));
 829                                 m.tex[0] = R_GetTexture(texture->skin.base);
 830                                 if (waterscrolling)
 831                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
 832                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 833                                 {
 834                                         surface = texturesurfacelist[texturesurfaceindex];
 835                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 836                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
 837                                         R_Mesh_State(&m);
 838                                         GL_LockArrays(0, surface->mesh.num_vertices);
 839                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 840                                         GL_LockArrays(0, 0);
 841                                 }
 842                         }
 843                         if (r_lightmapintensity <= 0 && dolightmap && dobase)
 844                         {
 845                                 dolightmap = false;
 846                                 dobase = false;
 847                                 GL_Color(0, 0, 0, 1);
 848                                 memset(&m, 0, sizeof(m));
 849                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 850                                 {
 851                                         surface = texturesurfacelist[texturesurfaceindex];
 852                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 853                                         R_Mesh_State(&m);
 854                                         GL_LockArrays(0, surface->mesh.num_vertices);
 855                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 856                                         GL_LockArrays(0, 0);
 857                                 }
 858                         }
 859                         if (r_textureunits.integer >= 2 && gl_combine.integer && dolightmap && dobase)
 860                         {
 861                                 // dualtexture combine
 862                                 GL_BlendFunc(GL_ONE, GL_ZERO);
 863                                 GL_DepthMask(true);
 864                                 dolightmap = false;
 865                                 dobase = false;
 866                                 memset(&m, 0, sizeof(m));
 867                                 m.tex[1] = R_GetTexture(texture->skin.base);
 868                                 if (waterscrolling)
 869                                         m.texmatrix[1] = r_surf_waterscrollmatrix;
 870                                 m.texrgbscale[1] = 2;
 871                                 r = ent->colormod[0] * r_lightmapintensity;
 872                                 g = ent->colormod[1] * r_lightmapintensity;
 873                                 b = ent->colormod[2] * r_lightmapintensity;
 874                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 875                                 {
 876                                         surface = texturesurfacelist[texturesurfaceindex];
 877                                         memset(&m, 0, sizeof(m));
 878                                         m.tex[1] = R_GetTexture(texture->skin.base);
 879                                         if (waterscrolling)
 880                                                 m.texmatrix[1] = r_surf_waterscrollmatrix;
 881                                         m.texrgbscale[1] = 2;
 882                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 883                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
 884                                         m.pointer_texcoord[1] = surface->mesh.data_texcoordtexture2f;
 885                                         if (surface->lightmaptexture)
 886                                         {
 887                                                 m.tex[0] = R_GetTexture(surface->lightmaptexture);
 888                                                 m.pointer_color = NULL;
 889                                                 GL_Color(r, g, b, 1);
 890                                         }
 891                                         else if (r == 1 && g == 1 && b == 1)
 892                                         {
 893                                                 m.tex[0] = R_GetTexture(r_texture_white);
 894                                                 m.pointer_color = surface->mesh.data_lightmapcolor4f;
 895                                         }
 896                                         else
 897                                         {
 898                                                 m.tex[0] = R_GetTexture(r_texture_white);
 899                                                 m.pointer_color = 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                                         R_Mesh_State(&m);
 909                                         GL_LockArrays(0, surface->mesh.num_vertices);
 910                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 911                                         GL_LockArrays(0, 0);
 912                                 }
 913                         }
 914                         // single texture
 915                         if (dolightmap)
 916                         {
 917                                 GL_BlendFunc(GL_ONE, GL_ZERO);
 918                                 GL_DepthMask(true);
 919                                 GL_Color(1, 1, 1, 1);
 920                                 memset(&m, 0, sizeof(m));
 921                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 922                                 {
 923                                         surface = texturesurfacelist[texturesurfaceindex];
 924                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 925                                         m.tex[0] = R_GetTexture(surface->lightmaptexture);
 926                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
 927                                         if (surface->lightmaptexture)
 928                                                 m.pointer_color = NULL;
 929                                         else
 930                                                 m.pointer_color = surface->mesh.data_lightmapcolor4f;
 931                                         R_Mesh_State(&m);
 932                                         GL_LockArrays(0, surface->mesh.num_vertices);
 933                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 934                                         GL_LockArrays(0, 0);
 935                                 }
 936                         }
 937                         if (dobase)
 938                         {
 939                                 GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
 940                                 GL_DepthMask(false);
 941                                 GL_Color(r_lightmapintensity * ent->colormod[0], r_lightmapintensity * ent->colormod[1], r_lightmapintensity * ent->colormod[2], 1);
 942                                 memset(&m, 0, sizeof(m));
 943                                 m.tex[0] = R_GetTexture(texture->skin.base);
 944                                 if (waterscrolling)
 945                                         m.texmatrix[0] = r_surf_waterscrollmatrix;
 946                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 947                                 {
 948                                         surface = texturesurfacelist[texturesurfaceindex];
 949                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 950                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
 951                                         R_Mesh_State(&m);
 952                                         GL_LockArrays(0, surface->mesh.num_vertices);
 953                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
 954                                         GL_LockArrays(0, 0);
 955                                 }
 956                         }
 957                 }
 958                 if (doambient)
 959                 {
 960                         doambient = false;
 961                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 962                         GL_DepthMask(false);
 963                         memset(&m, 0, sizeof(m));
 964                         m.tex[0] = R_GetTexture(texture->skin.base);
 965                         if (waterscrolling)
 966                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
 967                         m.pointer_color = varray_color4f;
 968                         colorscale = 1;
 969                         if (gl_combine.integer)
 970                         {
 971                                 m.texrgbscale[0] = 4;
 972                                 colorscale *= 0.25f;
 973                         }
 974                         base = r_ambient.value * (1.0f / 64.0f);
 975                         r = ent->colormod[0] * colorscale * base;
 976                         g = ent->colormod[1] * colorscale * base;
 977                         b = ent->colormod[2] * colorscale * base;
 978                         a = texture->currentalpha;
 979                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
 980                         {
 981                                 surface = texturesurfacelist[texturesurfaceindex];
 982                                 m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
 983                                 m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
 984                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
 985                                 {
 986                                         c[0] = r;
 987                                         c[1] = g;
 988                                         c[2] = b;
 989                                         if (fogallpasses)
 990                                         {
 991                                                 VectorSubtract(v, modelorg, diff);
 992                                                 f = 1 - exp(fogdensity/DotProduct(diff, diff));
 993                                                 VectorScale(c, f, c);
 994                                         }
 995                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
 996                                                 c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
 997                                         else
 998                                                 c[3] = a;
 999                                 }
1000                                 R_Mesh_State(&m);
1001                                 GL_LockArrays(0, surface->mesh.num_vertices);
1002                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1003                                 GL_LockArrays(0, 0);
1004                         }
1005                 }
1006                 if (dodetail)
1007                 {
1008                         GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
1009                         GL_DepthMask(false);
1010                         GL_Color(1, 1, 1, 1);
1011                         memset(&m, 0, sizeof(m));
1012                         m.tex[0] = R_GetTexture(texture->skin.detail);
1013                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1014                         {
1015                                 surface = texturesurfacelist[texturesurfaceindex];
1016                                 m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
1017                                 m.pointer_texcoord[0] = surface->mesh.data_texcoorddetail2f;
1018                                 R_Mesh_State(&m);
1019                                 GL_LockArrays(0, surface->mesh.num_vertices);
1020                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1021                                 GL_LockArrays(0, 0);
1022                         }
1023                 }
1024                 if (doglow)
1025                 {
1026                         // if glow was not already done using multitexture, do it now.
1027                         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1028                         GL_DepthMask(false);
1029                         memset(&m, 0, sizeof(m));
1030                         m.tex[0] = R_GetTexture(texture->skin.glow);
1031                         if (waterscrolling)
1032                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
1033                         m.pointer_color = varray_color4f;
1034                         colorscale = 1;
1035                         r = ent->colormod[0] * colorscale;
1036                         g = ent->colormod[1] * colorscale;
1037                         b = ent->colormod[2] * colorscale;
1038                         a = texture->currentalpha;
1039                         if (fogallpasses)
1040                         {
1041                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1042                                 {
1043                                         surface = texturesurfacelist[texturesurfaceindex];
1044                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
1045                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
1046                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1047                                         {
1048                                                 m.pointer_color = varray_color4f;
1049                                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1050                                                 {
1051                                                         VectorSubtract(v, modelorg, diff);
1052                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
1053                                                         c[0] = f * r;
1054                                                         c[1] = f * g;
1055                                                         c[2] = f * b;
1056                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
1057                                                 }
1058                                         }
1059                                         else
1060                                         {
1061                                                 m.pointer_color = varray_color4f;
1062                                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1063                                                 {
1064                                                         VectorSubtract(v, modelorg, diff);
1065                                                         f = 1 - exp(fogdensity/DotProduct(diff, diff));
1066                                                         c[0] = f * r;
1067                                                         c[1] = f * g;
1068                                                         c[2] = f * b;
1069                                                         c[3] = a;
1070                                                 }
1071                                         }
1072                                         R_Mesh_State(&m);
1073                                         GL_LockArrays(0, surface->mesh.num_vertices);
1074                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1075                                         GL_LockArrays(0, 0);
1076                                 }
1077                         }
1078                         else
1079                         {
1080                                 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1081                                 {
1082                                         surface = texturesurfacelist[texturesurfaceindex];
1083                                         m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
1084                                         m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
1085                                         if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1086                                         {
1087                                                 m.pointer_color = varray_color4f;
1088                                                 for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1089                                                 {
1090                                                         c[0] = r;
1091                                                         c[1] = g;
1092                                                         c[2] = b;
1093                                                         c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * a;
1094                                                 }
1095                                         }
1096                                         else
1097                                         {
1098                                                 m.pointer_color = NULL;
1099                                                 GL_Color(r, g, b, a);
1100                                         }
1101                                         R_Mesh_State(&m);
1102                                         GL_LockArrays(0, surface->mesh.num_vertices);
1103                                         R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1104                                         GL_LockArrays(0, 0);
1105                                 }
1106                         }
1107                 }
1108                 if (dofogpass)
1109                 {
1110                         // if this is opaque use alpha blend which will darken the earlier
1111                         // passes cheaply.
1112                         //
1113                         // if this is an alpha blended material, all the earlier passes
1114                         // were darkened by fog already, so we only need to add the fog
1115                         // color ontop through the fog mask texture
1116                         //
1117                         // if this is an additive blended material, all the earlier passes
1118                         // were darkened by fog already, and we should not add fog color
1119                         // (because the background was not darkened, there is no fog color
1120                         // that was lost behind it).
1121                         if (!fogallpasses)
1122                                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1123                         else
1124                                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1125                         GL_DepthMask(false);
1126                         memset(&m, 0, sizeof(m));
1127                         m.tex[0] = R_GetTexture(texture->skin.fog);
1128                         if (waterscrolling)
1129                                 m.texmatrix[0] = r_surf_waterscrollmatrix;
1130                         r = fogcolor[0];
1131                         g = fogcolor[1];
1132                         b = fogcolor[2];
1133                         a = texture->currentalpha;
1134                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1135                         {
1136                                 surface = texturesurfacelist[texturesurfaceindex];
1137                                 m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
1138                                 m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
1139                                 m.pointer_color = varray_color4f;
1140                                 //RSurf_FogPassColors_Vertex3f_Color4f(surface->mesh.data_vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], texture->currentalpha, 1, surface->mesh.num_vertices, modelorg);
1141                                 if (surface->mesh.data_lightmapcolor4f && (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT))
1142                                 {
1143                                         m.pointer_color = varray_color4f;
1144                                         for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1145                                         {
1146                                                 VectorSubtract(v, modelorg, diff);
1147                                                 f = exp(fogdensity/DotProduct(diff, diff));
1148                                                 c[0] = r;
1149                                                 c[1] = g;
1150                                                 c[2] = b;
1151                                                 c[3] = surface->mesh.data_lightmapcolor4f[i*4+3] * f * a;
1152                                         }
1153                                 }
1154                                 else
1155                                 {
1156                                         m.pointer_color = varray_color4f;
1157                                         for (i = 0, v = m.pointer_vertex, c = varray_color4f;i < surface->mesh.num_vertices;i++, v += 3, c += 4)
1158                                         {
1159                                                 VectorSubtract(v, modelorg, diff);
1160                                                 f = exp(fogdensity/DotProduct(diff, diff));
1161                                                 c[0] = r;
1162                                                 c[1] = g;
1163                                                 c[2] = b;
1164                                                 c[3] = f * a;
1165                                         }
1166                                 }
1167                                 R_Mesh_State(&m);
1168                                 GL_LockArrays(0, surface->mesh.num_vertices);
1169                                 R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
1170                                 GL_LockArrays(0, 0);
1171                         }
1172                 }
1173         }
1174         if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1175                 qglEnable(GL_CULL_FACE);
1176 }
1177
1178 static void RSurfShader_Transparent_Callback(const void *calldata1, int calldata2)
1179 {
1180         const entity_render_t *ent = calldata1;
1181         const msurface_t *surface = ent->model->brush.data_surfaces + calldata2;
1182         vec3_t modelorg;
1183         texture_t *texture;
1184
1185         texture = surface->texture;
1186         if (texture->basematerialflags & MATERIALFLAG_SKY)
1187                 return; // transparent sky is too difficult
1188         R_UpdateTextureInfo(ent, texture);
1189
1190         R_Mesh_Matrix(&ent->matrix);
1191         Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
1192         R_DrawSurfaceList(ent, texture, 1, &surface, modelorg);
1193 }
1194
1195 void R_QueueSurfaceList(entity_render_t *ent, texture_t *texture, int texturenumsurfaces, const msurface_t **texturesurfacelist, const vec3_t modelorg)
1196 {
1197         int texturesurfaceindex;
1198         const msurface_t *surface;
1199         vec3_t tempcenter, center;
1200         if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
1201         {
1202                 // drawing sky transparently would be too difficult
1203                 if (!(texture->currentmaterialflags & MATERIALFLAG_SKY))
1204                 {
1205                         for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
1206                         {
1207                                 surface = texturesurfacelist[texturesurfaceindex];
1208                                 tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
1209                                 tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
1210                                 tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
1211                                 Matrix4x4_Transform(&ent->matrix, tempcenter, center);
1212                                 R_MeshQueue_AddTransparent(ent->effects & EF_NODEPTHTEST ? r_vieworigin : center, RSurfShader_Transparent_Callback, ent, surface - ent->model->brush.data_surfaces);
1213                         }
1214                 }
1215         }
1216         else
1217                 R_DrawSurfaceList(ent, texture, texturenumsurfaces, texturesurfacelist, modelorg);
1218 }
1219
1220 void R_DrawSurfaces(entity_render_t *ent, qboolean skysurfaces)
1221 {
1222         int i, j, f, flagsmask;
1223         msurface_t *surface, **surfacechain;
1224         texture_t *t, *texture;
1225         model_t *model = ent->model;
1226         vec3_t modelorg;
1227         const int maxsurfacelist = 1024;
1228         int numsurfacelist = 0;
1229         const msurface_t *surfacelist[1024];
1230         if (model == NULL)
1231                 return;
1232         R_Mesh_Matrix(&ent->matrix);
1233         Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
1234
1235         // update light styles
1236         if (!skysurfaces)
1237         {
1238                 for (i = 0;i < model->brushq1.light_styles;i++)
1239                 {
1240                         if (model->brushq1.light_stylevalue[i] != d_lightstylevalue[model->brushq1.light_style[i]])
1241                         {
1242                                 model->brushq1.light_stylevalue[i] = d_lightstylevalue[model->brushq1.light_style[i]];
1243                                 if ((surfacechain = model->brushq1.light_styleupdatechains[i]))
1244                                         for (;(surface = *surfacechain);surfacechain++)
1245                                                 surface->cached_dlight = true;
1246                         }
1247                 }
1248         }
1249
1250         R_UpdateAllTextureInfo(ent);
1251         flagsmask = skysurfaces ? MATERIALFLAG_SKY : (MATERIALFLAG_WATER | MATERIALFLAG_WALL);
1252         f = 0;
1253         t = NULL;
1254         texture = NULL;
1255         numsurfacelist = 0;
1256         for (i = 0, j = model->firstmodelsurface;i < model->nummodelsurfaces;i++, j++)
1257         {
1258                 if (ent != r_refdef.worldentity || r_worldsurfacevisible[j])
1259                 {
1260                         surface = model->brush.data_surfaces + j;
1261                         if (t != surface->texture)
1262                         {
1263                                 if (numsurfacelist)
1264                                 {
1265                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1266                                         numsurfacelist = 0;
1267                                 }
1268                                 t = surface->texture;
1269                                 f = t->currentmaterialflags & flagsmask;
1270                                 texture = t->currentframe;
1271                         }
1272                         if (f)
1273                         {
1274                                 // if lightmap parameters changed, rebuild lightmap texture
1275                                 if (surface->cached_dlight && surface->samples)
1276                                         R_BuildLightMap(ent, surface);
1277                                 // add face to draw list
1278                                 surfacelist[numsurfacelist++] = surface;
1279                                 if (numsurfacelist >= maxsurfacelist)
1280                                 {
1281                                         R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1282                                         numsurfacelist = 0;
1283                                 }
1284                         }
1285                 }
1286         }
1287         if (numsurfacelist)
1288                 R_QueueSurfaceList(ent, texture, numsurfacelist, surfacelist, modelorg);
1289 }
1290
1291 static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
1292 {
1293         int i;
1294         float *v;
1295         rmeshstate_t m;
1296         const mportal_t *portal = calldata1;
1297         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1298         GL_DepthMask(false);
1299         GL_DepthTest(true);
1300         R_Mesh_Matrix(&r_identitymatrix);
1301
1302         memset(&m, 0, sizeof(m));
1303         m.pointer_vertex = varray_vertex3f;
1304         R_Mesh_State(&m);
1305
1306         i = calldata2;
1307         GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
1308                          ((i & 0x0038) >> 3) * (1.0f / 7.0f),
1309                          ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
1310                          0.125f);
1311         if (PlaneDiff(r_vieworigin, (&portal->plane)) < 0)
1312         {
1313                 for (i = portal->numpoints - 1, v = varray_vertex3f;i >= 0;i--, v += 3)
1314                         VectorCopy(portal->points[i].position, v);
1315         }
1316         else
1317                 for (i = 0, v = varray_vertex3f;i < portal->numpoints;i++, v += 3)
1318                         VectorCopy(portal->points[i].position, v);
1319         GL_LockArrays(0, portal->numpoints);
1320         R_Mesh_Draw(portal->numpoints, portal->numpoints - 2, polygonelements);
1321         GL_LockArrays(0, 0);
1322 }
1323
1324 // LordHavoc: this is just a nice debugging tool, very slow
1325 static void R_DrawPortals(void)
1326 {
1327         int i, portalnum;
1328         mportal_t *portal;
1329         float center[3], f;
1330         model_t *model = r_refdef.worldmodel;
1331         if (model == NULL)
1332                 return;
1333         for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
1334         {
1335                 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
1336                 if (!R_CullBox(portal->mins, portal->maxs))
1337                 {
1338                         VectorClear(center);
1339                         for (i = 0;i < portal->numpoints;i++)
1340                                 VectorAdd(center, portal->points[i].position, center);
1341                         f = ixtable[portal->numpoints];
1342                         VectorScale(center, f, center);
1343                         R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, portal, portalnum);
1344                 }
1345         }
1346 }
1347
1348 static void R_DrawCollisionBrush(colbrushf_t *brush)
1349 {
1350         int i;
1351         rmeshstate_t m;
1352         memset(&m, 0, sizeof(m));
1353         m.pointer_vertex = brush->points->v;
1354         R_Mesh_State(&m);
1355         i = (int)(((size_t)brush) / sizeof(colbrushf_t));
1356         GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
1357         GL_LockArrays(0, brush->numpoints);
1358         R_Mesh_Draw(brush->numpoints, brush->numtriangles, brush->elements);
1359         GL_LockArrays(0, 0);
1360 }
1361
1362 static void R_DrawCollisionSurface(entity_render_t *ent, msurface_t *surface)
1363 {
1364         int i;
1365         rmeshstate_t m;
1366         if (!surface->mesh.num_collisiontriangles)
1367                 return;
1368         memset(&m, 0, sizeof(m));
1369         m.pointer_vertex = surface->mesh.data_collisionvertex3f;
1370         R_Mesh_State(&m);
1371         i = (int)(((size_t)surface) / sizeof(msurface_t));
1372         GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
1373         GL_LockArrays(0, surface->mesh.num_collisionvertices);
1374         R_Mesh_Draw(surface->mesh.num_collisionvertices, surface->mesh.num_collisiontriangles, surface->mesh.data_collisionelement3i);
1375         GL_LockArrays(0, 0);
1376 }
1377
1378 void R_WorldVisibility(void)
1379 {
1380         int i, j, *mark;
1381         mleaf_t *leaf;
1382         mleaf_t *viewleaf;
1383         model_t *model = r_refdef.worldmodel;
1384
1385         if (!model)
1386                 return;
1387
1388         // if possible find the leaf the view origin is in
1389         viewleaf = model->brushq1.PointInLeaf ? model->brushq1.PointInLeaf(model, r_vieworigin) : NULL;
1390         // if possible fetch the visible cluster bits
1391         if (model->brush.FatPVS)
1392                 model->brush.FatPVS(model, r_vieworigin, 2, r_pvsbits, sizeof(r_pvsbits));
1393
1394         // clear the visible surface and leaf flags arrays
1395         memset(r_worldsurfacevisible, 0, model->brush.num_surfaces);
1396         memset(r_worldleafvisible, 0, model->brush.num_leafs);
1397
1398         // if the user prefers surfaceworldnode (testing?) or the viewleaf could
1399         // not be found, or the viewleaf is not part of the visible world
1400         // (floating around in the void), use the pvs method
1401         if (r_surfaceworldnode.integer || !viewleaf || viewleaf->clusterindex < 0)
1402         {
1403                 // pvs method:
1404                 // similar to quake's RecursiveWorldNode but without cache misses
1405                 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
1406                 {
1407                         // if leaf is in current pvs and on the screen, mark its surfaces
1408                         if (CHECKPVSBIT(r_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
1409                         {
1410                                 c_leafs++;
1411                                 r_worldleafvisible[j] = true;
1412                                 if (leaf->numleafsurfaces)
1413                                         for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
1414                                                 r_worldsurfacevisible[*mark] = true;
1415                         }
1416                 }
1417         }
1418         else
1419         {
1420                 int leafstackpos;
1421                 mportal_t *p;
1422                 mleaf_t *leafstack[8192];
1423                 // portal method:
1424                 // follows portals leading outward from viewleaf, does not venture
1425                 // offscreen or into leafs that are not visible, faster than Quake's
1426                 // RecursiveWorldNode and vastly better in unvised maps, often culls a
1427                 // lot of surface that pvs alone would miss
1428                 leafstack[0] = viewleaf;
1429                 leafstackpos = 1;
1430                 while (leafstackpos)
1431                 {
1432                         c_leafs++;
1433                         leaf = leafstack[--leafstackpos];
1434                         r_worldleafvisible[leaf - model->brush.data_leafs] = true;
1435                         // mark any surfaces bounding this leaf
1436                         if (leaf->numleafsurfaces)
1437                                 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
1438                                         r_worldsurfacevisible[*mark] = true;
1439                         // follow portals into other leafs
1440                         // the checks are:
1441                         // if viewer is behind portal (portal faces outward into the scene)
1442                         // and the portal polygon's bounding box is on the screen
1443                         // and the leaf has not been visited yet
1444                         // and the leaf is visible in the pvs
1445                         // (the first two checks won't cause as many cache misses as the leaf checks)
1446                         for (p = leaf->portals;p;p = p->next)
1447                                 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))
1448                                         leafstack[leafstackpos++] = p->past;
1449                 }
1450         }
1451
1452         if (r_drawportals.integer)
1453                 R_DrawPortals();
1454 }
1455
1456 void R_Q1BSP_DrawSky(entity_render_t *ent)
1457 {
1458         if (ent->model == NULL)
1459                 return;
1460         if (r_drawcollisionbrushes.integer < 2)
1461                 R_DrawSurfaces(ent, true);
1462 }
1463
1464 void R_Q1BSP_Draw(entity_render_t *ent)
1465 {
1466         if (ent->model == NULL)
1467                 return;
1468         c_bmodels++;
1469         if (r_drawcollisionbrushes.integer < 2)
1470                 R_DrawSurfaces(ent, false);
1471         if (r_drawcollisionbrushes.integer >= 1 && ent->model->brush.num_brushes)
1472         {
1473                 int i;
1474                 model_t *model = ent->model;
1475                 msurface_t *surface;
1476                 q3mbrush_t *brush;
1477                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1478                 GL_DepthMask(false);
1479                 GL_DepthTest(true);
1480                 qglPolygonOffset(r_drawcollisionbrushes_polygonfactor.value, r_drawcollisionbrushes_polygonoffset.value);
1481                 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
1482                         if (brush->colbrushf && brush->colbrushf->numtriangles)
1483                                 R_DrawCollisionBrush(brush->colbrushf);
1484                 for (i = 0, surface = model->brush.data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
1485                         if (surface->mesh.num_collisiontriangles)
1486                                 R_DrawCollisionSurface(ent, surface);
1487                 qglPolygonOffset(0, 0);
1488         }
1489 }
1490
1491 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)
1492 {
1493         model_t *model = ent->model;
1494         vec3_t lightmins, lightmaxs;
1495         int t, leafindex, leafsurfaceindex, surfaceindex, triangleindex, outnumclusters = 0, outnumsurfaces = 0;
1496         const int *e;
1497         const float *v[3];
1498         msurface_t *surface;
1499         mleaf_t *leaf;
1500         const qbyte *pvs;
1501         lightmins[0] = relativelightorigin[0] - lightradius;
1502         lightmins[1] = relativelightorigin[1] - lightradius;
1503         lightmins[2] = relativelightorigin[2] - lightradius;
1504         lightmaxs[0] = relativelightorigin[0] + lightradius;
1505         lightmaxs[1] = relativelightorigin[1] + lightradius;
1506         lightmaxs[2] = relativelightorigin[2] + lightradius;
1507         *outnumclusterspointer = 0;
1508         *outnumsurfacespointer = 0;
1509         memset(outclusterpvs, 0, model->brush.num_pvsclusterbytes);
1510         memset(outsurfacepvs, 0, (model->nummodelsurfaces + 7) >> 3);
1511         if (model == NULL)
1512         {
1513                 VectorCopy(lightmins, outmins);
1514                 VectorCopy(lightmaxs, outmaxs);
1515                 return;
1516         }
1517         VectorCopy(relativelightorigin, outmins);
1518         VectorCopy(relativelightorigin, outmaxs);
1519         if (model->brush.GetPVS)
1520                 pvs = model->brush.GetPVS(model, relativelightorigin);
1521         else
1522                 pvs = NULL;
1523         R_UpdateAllTextureInfo(ent);
1524         // FIXME: use BSP recursion as lights are often small
1525         for (leafindex = 0, leaf = model->brush.data_leafs;leafindex < model->brush.num_leafs;leafindex++, leaf++)
1526         {
1527                 if (BoxesOverlap(lightmins, lightmaxs, leaf->mins, leaf->maxs) && (pvs == NULL || CHECKPVSBIT(pvs, leaf->clusterindex)))
1528                 {
1529                         outmins[0] = min(outmins[0], leaf->mins[0]);
1530                         outmins[1] = min(outmins[1], leaf->mins[1]);
1531                         outmins[2] = min(outmins[2], leaf->mins[2]);
1532                         outmaxs[0] = max(outmaxs[0], leaf->maxs[0]);
1533                         outmaxs[1] = max(outmaxs[1], leaf->maxs[1]);
1534                         outmaxs[2] = max(outmaxs[2], leaf->maxs[2]);
1535                         if (outclusterpvs)
1536                         {
1537                                 if (!CHECKPVSBIT(outclusterpvs, leaf->clusterindex))
1538                                 {
1539                                         SETPVSBIT(outclusterpvs, leaf->clusterindex);
1540                                         outclusterlist[outnumclusters++] = leaf->clusterindex;
1541                                 }
1542                         }
1543                         if (outsurfacepvs)
1544                         {
1545                                 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
1546                                 {
1547                                         surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
1548                                         if (!CHECKPVSBIT(outsurfacepvs, surfaceindex))
1549                                         {
1550                                                 surface = model->brush.data_surfaces + surfaceindex;
1551                                                 if (BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1552                                                 if ((surface->texture->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1553                                                 {
1554                                                         for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->mesh.num_triangles;triangleindex++, t++, e += 3)
1555                                                         {
1556                                                                 v[0] = model->brush.shadowmesh->vertex3f + e[0] * 3;
1557                                                                 v[1] = model->brush.shadowmesh->vertex3f + e[1] * 3;
1558                                                                 v[2] = model->brush.shadowmesh->vertex3f + e[2] * 3;
1559                                                                 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])))
1560                                                                 {
1561                                                                         SETPVSBIT(outsurfacepvs, surfaceindex);
1562                                                                         outsurfacelist[outnumsurfaces++] = surfaceindex;
1563                                                                         break;
1564                                                                 }
1565                                                         }
1566                                                 }
1567                                         }
1568                                 }
1569                         }
1570                 }
1571         }
1572
1573         // limit combined leaf box to light boundaries
1574         outmins[0] = max(outmins[0], lightmins[0]);
1575         outmins[1] = max(outmins[1], lightmins[1]);
1576         outmins[2] = max(outmins[2], lightmins[2]);
1577         outmaxs[0] = min(outmaxs[0], lightmaxs[0]);
1578         outmaxs[1] = min(outmaxs[1], lightmaxs[1]);
1579         outmaxs[2] = min(outmaxs[2], lightmaxs[2]);
1580
1581         *outnumclusterspointer = outnumclusters;
1582         *outnumsurfacespointer = outnumsurfaces;
1583 }
1584
1585 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)
1586 {
1587         model_t *model = ent->model;
1588         msurface_t *surface;
1589         int surfacelistindex;
1590         if (r_drawcollisionbrushes.integer < 2)
1591         {
1592                 R_Mesh_Matrix(&ent->matrix);
1593                 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1594                 if (!r_shadow_compilingrtlight)
1595                         R_UpdateAllTextureInfo(ent);
1596                 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1597                 {
1598                         surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
1599                         if ((surface->texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
1600                                 continue;
1601                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1602                                 continue;
1603                         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);
1604                 }
1605                 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);
1606         }
1607 }
1608
1609 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)
1610 {
1611         model_t *model = ent->model;
1612         msurface_t *surface;
1613         texture_t *t;
1614         int surfacelistindex;
1615         if (r_drawcollisionbrushes.integer < 2)
1616         {
1617                 R_Mesh_Matrix(&ent->matrix);
1618                 if (!r_shadow_compilingrtlight)
1619                         R_UpdateAllTextureInfo(ent);
1620                 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1621                 {
1622                         surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
1623                         if (surface->texture->basematerialflags & MATERIALFLAG_NODRAW || !surface->mesh.num_triangles)
1624                                 continue;
1625                         if (r_shadow_compilingrtlight)
1626                         {
1627                                 // if compiling an rtlight, capture the mesh
1628                                 t = surface->texture;
1629                                 if ((t->basematerialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1630                                         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);
1631                         }
1632                         else if (ent != r_refdef.worldentity || r_worldsurfacevisible[surfacelist[surfacelistindex]])
1633                         {
1634                                 t = surface->texture->currentframe;
1635                                 // FIXME: transparent surfaces need to be lit later
1636                                 if ((t->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
1637                                 {
1638                                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1639                                                 qglDisable(GL_CULL_FACE);
1640                                         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);
1641                                         if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1642                                                 qglEnable(GL_CULL_FACE);
1643                                 }
1644                         }
1645                 }
1646         }
1647 }
1648
1649 #if 0
1650 static void gl_surf_start(void)
1651 {
1652 }
1653
1654 static void gl_surf_shutdown(void)
1655 {
1656 }
1657
1658 static void gl_surf_newmap(void)
1659 {
1660 }
1661 #endif
1662
1663 void GL_Surf_Init(void)
1664 {
1665
1666         Cvar_RegisterVariable(&r_ambient);
1667         Cvar_RegisterVariable(&r_drawportals);
1668         Cvar_RegisterVariable(&r_testvis);
1669         Cvar_RegisterVariable(&r_detailtextures);
1670         Cvar_RegisterVariable(&r_surfaceworldnode);
1671         Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonfactor);
1672         Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonoffset);
1673         Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
1674         Cvar_RegisterVariable(&gl_lightmaps);
1675
1676         //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);
1677 }
1678