]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_rsurf.c
395
[xonotic/darkplaces.git] / gl_rsurf.c
index eae22edb9f2e8511b41cd77cc93a745a0259bdec..898da1fbffc9acf85e73007a77a6fb5b68405f3e 100644 (file)
@@ -20,214 +20,28 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 // r_surf.c: surface-related refresh code
 
 #include "quakedef.h"
+#include "r_shadow.h"
+#include "portals.h"
 
 #define MAX_LIGHTMAP_SIZE 256
 
-static unsigned int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
-static float floatblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
-
-static qbyte templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
-
 cvar_t r_ambient = {0, "r_ambient", "0"};
-cvar_t r_vertexsurfaces = {0, "r_vertexsurfaces", "0"};
-cvar_t r_dlightmap = {CVAR_SAVE, "r_dlightmap", "1"};
 cvar_t r_drawportals = {0, "r_drawportals", "0"};
 cvar_t r_testvis = {0, "r_testvis", "0"};
-cvar_t r_floatbuildlightmap = {0, "r_floatbuildlightmap", "0"};
 cvar_t r_detailtextures = {CVAR_SAVE, "r_detailtextures", "1"};
-
-static int dlightdivtable[32768];
-
-static int R_IntAddDynamicLights (msurface_t *surf)
-{
-       int sdtable[256], lnum, td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, red, green, blue, lit, dist2, impacts, impactt, subtract;
-       unsigned int *bl;
-       float dist, impact[3], local[3];
-
-       // LordHavoc: use 64bit integer...  shame it's not very standardized...
-#if _MSC_VER || __BORLANDC__
-       __int64     k;
-#else
-       long long   k;
-#endif
-
-       lit = false;
-
-       smax = (surf->extents[0] >> 4) + 1;
-       tmax = (surf->extents[1] >> 4) + 1;
-       smax3 = smax * 3;
-
-       for (lnum = 0; lnum < r_numdlights; lnum++)
-       {
-               if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
-                       continue;                                       // not lit by this light
-
-               softwareuntransform(r_dlight[lnum].origin, local);
-               dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
-
-               // for comparisons to minimum acceptable light
-               // compensate for LIGHTOFFSET
-               maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
-
-               dist2 = dist * dist;
-               dist2 += LIGHTOFFSET;
-               if (dist2 >= maxdist)
-                       continue;
-
-               if (surf->plane->type < 3)
-               {
-                       VectorCopy(local, impact);
-                       impact[surf->plane->type] -= dist;
-               }
-               else
-               {
-                       impact[0] = local[0] - surf->plane->normal[0] * dist;
-                       impact[1] = local[1] - surf->plane->normal[1] * dist;
-                       impact[2] = local[2] - surf->plane->normal[2] * dist;
-               }
-
-               impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
-               impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
-
-               s = bound(0, impacts, smax * 16) - impacts;
-               t = bound(0, impactt, tmax * 16) - impactt;
-               i = s * s + t * t + dist2;
-               if (i > maxdist)
-                       continue;
-
-               // reduce calculations
-               for (s = 0, i = impacts; s < smax; s++, i -= 16)
-                       sdtable[s] = i * i + dist2;
-
-               maxdist3 = maxdist - dist2;
-
-               // convert to 8.8 blocklights format
-               red = r_dlight[lnum].light[0];
-               green = r_dlight[lnum].light[1];
-               blue = r_dlight[lnum].light[2];
-               subtract = (int) (r_dlight[lnum].subtract * 4194304.0f);
-               bl = intblocklights;
-
-               i = impactt;
-               for (t = 0;t < tmax;t++, i -= 16)
-               {
-                       td = i * i;
-                       // make sure some part of it is visible on this line
-                       if (td < maxdist3)
-                       {
-                               maxdist2 = maxdist - td;
-                               for (s = 0;s < smax;s++)
-                               {
-                                       if (sdtable[s] < maxdist2)
-                                       {
-                                               k = dlightdivtable[(sdtable[s] + td) >> 7] - subtract;
-                                               if (k > 0)
-                                               {
-                                                       bl[0] += (red   * k) >> 7;
-                                                       bl[1] += (green * k) >> 7;
-                                                       bl[2] += (blue  * k) >> 7;
-                                                       lit = true;
-                                               }
-                                       }
-                                       bl += 3;
-                               }
-                       }
-                       else // skip line
-                               bl += smax3;
-               }
-       }
-       return lit;
-}
-
-static int R_FloatAddDynamicLights (msurface_t *surf)
-{
-       int lnum, s, t, smax, tmax, smax3, lit, impacts, impactt;
-       float sdtable[256], *bl, k, dist, dist2, maxdist, maxdist2, maxdist3, td1, td, red, green, blue, impact[3], local[3], subtract;
-
-       lit = false;
-
-       smax = (surf->extents[0] >> 4) + 1;
-       tmax = (surf->extents[1] >> 4) + 1;
-       smax3 = smax * 3;
-
-       for (lnum = 0; lnum < r_numdlights; lnum++)
-       {
-               if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
-                       continue;                                       // not lit by this light
-
-               softwareuntransform(r_dlight[lnum].origin, local);
-               dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
-
-               // for comparisons to minimum acceptable light
-               // compensate for LIGHTOFFSET
-               maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
-
-               dist2 = dist * dist;
-               dist2 += LIGHTOFFSET;
-               if (dist2 >= maxdist)
-                       continue;
-
-               if (surf->plane->type < 3)
-               {
-                       VectorCopy(local, impact);
-                       impact[surf->plane->type] -= dist;
-               }
-               else
-               {
-                       impact[0] = local[0] - surf->plane->normal[0] * dist;
-                       impact[1] = local[1] - surf->plane->normal[1] * dist;
-                       impact[2] = local[2] - surf->plane->normal[2] * dist;
-               }
-
-               impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
-               impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
-
-               td = bound(0, impacts, smax * 16) - impacts;
-               td1 = bound(0, impactt, tmax * 16) - impactt;
-               td = td * td + td1 * td1 + dist2;
-               if (td > maxdist)
-                       continue;
-
-               // reduce calculations
-               for (s = 0, td1 = impacts; s < smax; s++, td1 -= 16.0f)
-                       sdtable[s] = td1 * td1 + dist2;
-
-               maxdist3 = maxdist - dist2;
-
-               // convert to 8.8 blocklights format
-               red = r_dlight[lnum].light[0];
-               green = r_dlight[lnum].light[1];
-               blue = r_dlight[lnum].light[2];
-               subtract = r_dlight[lnum].subtract * 32768.0f;
-               bl = floatblocklights;
-
-               td1 = impactt;
-               for (t = 0;t < tmax;t++, td1 -= 16.0f)
-               {
-                       td = td1 * td1;
-                       // make sure some part of it is visible on this line
-                       if (td < maxdist3)
-                       {
-                               maxdist2 = maxdist - td;
-                               for (s = 0;s < smax;s++)
-                               {
-                                       if (sdtable[s] < maxdist2)
-                                       {
-                                               k = (32768.0f / (sdtable[s] + td)) - subtract;
-                                               bl[0] += red   * k;
-                                               bl[1] += green * k;
-                                               bl[2] += blue  * k;
-                                               lit = true;
-                                       }
-                                       bl += 3;
-                               }
-                       }
-                       else // skip line
-                               bl += smax3;
-               }
-       }
-       return lit;
-}
+cvar_t r_surfaceworldnode = {0, "r_surfaceworldnode", "0"};
+cvar_t r_drawcollisionbrushes_polygonfactor = {0, "r_drawcollisionbrushes_polygonfactor", "-1"};
+cvar_t r_drawcollisionbrushes_polygonoffset = {0, "r_drawcollisionbrushes_polygonoffset", "0"};
+cvar_t r_q3bsp_renderskydepth = {0, "r_q3bsp_renderskydepth", "0"};
+
+// flag arrays used for visibility checking on world model
+// (all other entities have no per-surface/per-leaf visibility checks)
+// TODO: dynamic resize according to r_refdef.worldmodel->brush.num_clusters
+qbyte r_pvsbits[(32768+7)>>3];
+// TODO: dynamic resize according to r_refdef.worldmodel->brush.num_leafs
+qbyte r_worldleafvisible[32768];
+// TODO: dynamic resize according to r_refdef.worldmodel->num_surfaces
+qbyte r_worldsurfacevisible[262144];
 
 /*
 ===============
@@ -236,221 +50,96 @@ R_BuildLightMap
 Combine and scale multiple lightmaps into the 8.8 format in blocklights
 ===============
 */
-static void R_BuildLightMap (const entity_render_t *ent, msurface_t *surf, int dlightchanged)
+void R_BuildLightMap (const entity_render_t *ent, msurface_t *surface)
 {
-       if (!r_floatbuildlightmap.integer)
-       {
-               int smax, tmax, i, j, size, size3, shift, maps, stride, l;
-               unsigned int *bl, scale;
-               qbyte *lightmap, *out, *stain;
-
-               // update cached lighting info
-               surf->cached_dlight = 0;
-               surf->cached_lightscalebit = lightscalebit;
-               surf->cached_ambient = r_ambient.value;
-               surf->cached_light[0] = d_lightstylevalue[surf->styles[0]];
-               surf->cached_light[1] = d_lightstylevalue[surf->styles[1]];
-               surf->cached_light[2] = d_lightstylevalue[surf->styles[2]];
-               surf->cached_light[3] = d_lightstylevalue[surf->styles[3]];
-
-               smax = (surf->extents[0]>>4)+1;
-               tmax = (surf->extents[1]>>4)+1;
-               size = smax*tmax;
-               size3 = size*3;
-               lightmap = surf->samples;
-
-       // set to full bright if no light data
-               bl = intblocklights;
-               if ((ent->effects & EF_FULLBRIGHT) || !ent->model->lightdata)
-               {
-                       for (i = 0;i < size3;i++)
-                               bl[i] = 255*256;
-               }
-               else
-               {
-       // clear to no light
-                       j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
-                       if (j)
-                       {
-                               for (i = 0;i < size3;i++)
-                                       *bl++ = j;
-                       }
-                       else
-                               memset(bl, 0, size*3*sizeof(unsigned int));
+       int smax, tmax, i, j, size, size3, maps, stride, l;
+       unsigned int *bl, scale;
+       qbyte *lightmap, *out, *stain;
+       static unsigned int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
+       static qbyte templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
 
-                       if (surf->dlightframe == r_framecount && r_dlightmap.integer)
-                       {
-                               surf->cached_dlight = R_IntAddDynamicLights(surf);
-                               if (surf->cached_dlight)
-                                       c_light_polys++;
-                               else if (dlightchanged)
-                                       return; // don't upload if only updating dlights and none mattered
-                       }
-
-       // add all the lightmaps
-                       if (lightmap)
-                       {
-                               bl = intblocklights;
-                               for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
-                                       for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
-                                               bl[i] += lightmap[i] * scale;
-                       }
-               }
+       // update cached lighting info
+       surface->cached_dlight = 0;
 
-               stain = surf->stainsamples;
-               bl = intblocklights;
-               out = templight;
-               // deal with lightmap brightness scale
-               shift = 7 + lightscalebit + 8;
-               if (ent->model->lightmaprgba)
-               {
-                       stride = (surf->lightmaptexturestride - smax) * 4;
-                       for (i = 0;i < tmax;i++, out += stride)
-                       {
-                               for (j = 0;j < smax;j++)
-                               {
-                                       l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
-                                       l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
-                                       l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
-                                       *out++ = 255;
-                               }
-                       }
-               }
-               else
-               {
-                       stride = (surf->lightmaptexturestride - smax) * 3;
-                       for (i = 0;i < tmax;i++, out += stride)
-                       {
-                               for (j = 0;j < smax;j++)
-                               {
-                                       l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
-                                       l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
-                                       l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
-                               }
-                       }
-               }
+       smax = (surface->lightmapinfo->extents[0]>>4)+1;
+       tmax = (surface->lightmapinfo->extents[1]>>4)+1;
+       size = smax*tmax;
+       size3 = size*3;
+       lightmap = surface->lightmapinfo->samples;
 
-               R_UpdateTexture(surf->lightmaptexture, templight);
+// set to full bright if no light data
+       bl = intblocklights;
+       if (!ent->model->brushq1.lightdata)
+       {
+               for (i = 0;i < size3;i++)
+                       bl[i] = 255*256;
        }
        else
        {
-               int smax, tmax, i, j, size, size3, maps, stride, l;
-               float *bl, scale;
-               qbyte *lightmap, *out, *stain;
-
-               // update cached lighting info
-               surf->cached_dlight = 0;
-               surf->cached_lightscalebit = lightscalebit;
-               surf->cached_ambient = r_ambient.value;
-               surf->cached_light[0] = d_lightstylevalue[surf->styles[0]];
-               surf->cached_light[1] = d_lightstylevalue[surf->styles[1]];
-               surf->cached_light[2] = d_lightstylevalue[surf->styles[2]];
-               surf->cached_light[3] = d_lightstylevalue[surf->styles[3]];
-
-               smax = (surf->extents[0]>>4)+1;
-               tmax = (surf->extents[1]>>4)+1;
-               size = smax*tmax;
-               size3 = size*3;
-               lightmap = surf->samples;
-
-       // set to full bright if no light data
-               bl = floatblocklights;
-               if ((ent->effects & EF_FULLBRIGHT) || !ent->model->lightdata)
-                       j = 255*256;
-               else
-                       j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
-
-               // clear to no light
-               if (j)
-               {
-                       for (i = 0;i < size3;i++)
-                               *bl++ = j;
-               }
-               else
-                       memset(bl, 0, size*3*sizeof(float));
-
-               if (surf->dlightframe == r_framecount && r_dlightmap.integer)
-               {
-                       surf->cached_dlight = R_FloatAddDynamicLights(surf);
-                       if (surf->cached_dlight)
-                               c_light_polys++;
-                       else if (dlightchanged)
-                               return; // don't upload if only updating dlights and none mattered
-               }
+// clear to no light
+               memset(bl, 0, size*3*sizeof(unsigned int));
 
-               // add all the lightmaps
+// add all the lightmaps
                if (lightmap)
                {
-                       bl = floatblocklights;
-                       for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
-                               for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
+                       bl = intblocklights;
+                       for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
+                               for (scale = d_lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
                                        bl[i] += lightmap[i] * scale;
                }
+       }
 
-               stain = surf->stainsamples;
-               bl = floatblocklights;
-               out = templight;
-               // deal with lightmap brightness scale
-               scale = 1.0f / (1 << (7 + lightscalebit + 8));
-               if (ent->model->lightmaprgba)
+       stain = surface->lightmapinfo->stainsamples;
+       bl = intblocklights;
+       out = templight;
+       // the >> 16 shift adjusts down 8 bits to account for the stainmap
+       // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
+       // be doubled during rendering to achieve 2x overbright
+       // (0 = 0.0, 128 = 1.0, 256 = 2.0)
+       if (ent->model->brushq1.lightmaprgba)
+       {
+               stride = (surface->lightmapinfo->lightmaptexturestride - smax) * 4;
+               for (i = 0;i < tmax;i++, out += stride)
                {
-                       stride = (surf->lightmaptexturestride - smax) * 4;
-                       for (i = 0;i < tmax;i++, out += stride)
+                       for (j = 0;j < smax;j++)
                        {
-                               for (j = 0;j < smax;j++)
-                               {
-                                       l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
-                                       l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
-                                       l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
-                                       *out++ = 255;
-                               }
+                               l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
+                               l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
+                               l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
+                               *out++ = 255;
                        }
                }
-               else
+       }
+       else
+       {
+               stride = (surface->lightmapinfo->lightmaptexturestride - smax) * 3;
+               for (i = 0;i < tmax;i++, out += stride)
                {
-                       stride = (surf->lightmaptexturestride - smax) * 3;
-                       for (i = 0;i < tmax;i++, out += stride)
+                       for (j = 0;j < smax;j++)
                        {
-                               for (j = 0;j < smax;j++)
-                               {
-                                       l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
-                                       l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
-                                       l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
-                               }
+                               l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
+                               l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
+                               l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
                        }
                }
-
-               R_UpdateTexture(surf->lightmaptexture, templight);
        }
+
+       R_UpdateTexture(surface->lightmaptexture, templight);
 }
 
-void R_StainNode (mnode_t *node, model_t *model, vec3_t origin, float radius, int icolor[8])
+void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
 {
-       float ndist;
-       msurface_t *surf, *endsurf;
-       int sdtable[256], td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, dist2, impacts, impactt, subtract, a, stained, cr, cg, cb, ca, ratio;
+       float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
+       msurface_t *surface, *endsurface;
+       int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
        qbyte *bl;
        vec3_t impact;
-       // LordHavoc: use 64bit integer...  shame it's not very standardized...
-#if _MSC_VER || __BORLANDC__
-       __int64     k;
-#else
-       long long   k;
-#endif
-
-
-       // for comparisons to minimum acceptable light
-       // compensate for 256 offset
-       maxdist = radius * radius + 256.0f;
-
-       // clamp radius to avoid exceeding 32768 entry division table
-       if (maxdist > 4194304)
-               maxdist = 4194304;
 
-       subtract = (int) ((1.0f / maxdist) * 4194304.0f);
+       maxdist = radius * radius;
+       invradius = 1.0f / radius;
 
 loc0:
-       if (node->contents < 0)
+       if (!node->plane)
                return;
        ndist = PlaneDiff(origin, node->plane);
        if (ndist > radius)
@@ -464,97 +153,86 @@ loc0:
                goto loc0;
        }
 
-       dist2 = ndist * ndist + 256.0f;
-       if (dist2 < maxdist)
-       {
-               maxdist3 = maxdist - dist2;
+       dist2 = ndist * ndist;
+       maxdist3 = maxdist - dist2;
 
-               if (node->plane->type < 3)
-               {
-                       VectorCopy(origin, impact);
-                       impact[node->plane->type] -= ndist;
-               }
-               else
-               {
-                       impact[0] = origin[0] - node->plane->normal[0] * ndist;
-                       impact[1] = origin[1] - node->plane->normal[1] * ndist;
-                       impact[2] = origin[2] - node->plane->normal[2] * ndist;
-               }
+       if (node->plane->type < 3)
+       {
+               VectorCopy(origin, impact);
+               impact[node->plane->type] -= ndist;
+       }
+       else
+       {
+               impact[0] = origin[0] - node->plane->normal[0] * ndist;
+               impact[1] = origin[1] - node->plane->normal[1] * ndist;
+               impact[2] = origin[2] - node->plane->normal[2] * ndist;
+       }
 
-               for (surf = model->surfaces + node->firstsurface, endsurf = surf + node->numsurfaces;surf < endsurf;surf++)
+       for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
+       {
+               if (surface->lightmapinfo->stainsamples)
                {
-                       if (surf->stainsamples)
-                       {
-                               smax = (surf->extents[0] >> 4) + 1;
-                               tmax = (surf->extents[1] >> 4) + 1;
+                       smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
+                       tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
 
-                               impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
-                               impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
+                       impacts = DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0];
+                       impactt = DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1];
 
-                               s = bound(0, impacts, smax * 16) - impacts;
-                               t = bound(0, impactt, tmax * 16) - impactt;
-                               i = s * s + t * t + dist2;
-                               if (i > maxdist)
-                                       continue;
+                       s = bound(0, impacts, smax * 16) - impacts;
+                       t = bound(0, impactt, tmax * 16) - impactt;
+                       i = s * s + t * t + dist2;
+                       if (i > maxdist)
+                               continue;
 
-                               // reduce calculations
-                               for (s = 0, i = impacts; s < smax; s++, i -= 16)
-                                       sdtable[s] = i * i + dist2;
+                       // reduce calculations
+                       for (s = 0, i = impacts; s < smax; s++, i -= 16)
+                               sdtable[s] = i * i + dist2;
 
-                               // convert to 8.8 blocklights format
-                               bl = surf->stainsamples;
-                               smax3 = smax * 3;
-                               stained = false;
+                       bl = surface->lightmapinfo->stainsamples;
+                       smax3 = smax * 3;
+                       stained = false;
 
-                               i = impactt;
-                               for (t = 0;t < tmax;t++, i -= 16)
+                       i = impactt;
+                       for (t = 0;t < tmax;t++, i -= 16)
+                       {
+                               td = i * i;
+                               // make sure some part of it is visible on this line
+                               if (td < maxdist3)
                                {
-                                       td = i * i;
-                                       // make sure some part of it is visible on this line
-                                       if (td < maxdist3)
+                                       maxdist2 = maxdist - td;
+                                       for (s = 0;s < smax;s++)
                                        {
-                                               maxdist2 = maxdist - td;
-                                               for (s = 0;s < smax;s++)
+                                               if (sdtable[s] < maxdist2)
                                                {
-                                                       if (sdtable[s] < maxdist2)
+                                                       ratio = lhrandom(0.0f, 1.0f);
+                                                       a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
+                                                       if (a >= (1.0f / 64.0f))
                                                        {
-                                                               k = dlightdivtable[(sdtable[s] + td) >> 7] - subtract;
-                                                               if (k > 0)
-                                                               {
-                                                                       ratio = rand() & 255;
-                                                                       ca = (((icolor[7] - icolor[3]) * ratio) >> 8) + icolor[3];
-                                                                       a = (ca * k) >> 8;
-                                                                       if (a > 0)
-                                                                       {
-                                                                               a = bound(0, a, 256);
-                                                                               cr = (((icolor[4] - icolor[0]) * ratio) >> 8) + icolor[0];
-                                                                               cg = (((icolor[5] - icolor[1]) * ratio) >> 8) + icolor[1];
-                                                                               cb = (((icolor[6] - icolor[2]) * ratio) >> 8) + icolor[2];
-                                                                               bl[0] = (qbyte) ((((cr - (int) bl[0]) * a) >> 8) + (int) bl[0]);
-                                                                               bl[1] = (qbyte) ((((cg - (int) bl[1]) * a) >> 8) + (int) bl[1]);
-                                                                               bl[2] = (qbyte) ((((cb - (int) bl[2]) * a) >> 8) + (int) bl[2]);
-                                                                               stained = true;
-                                                                       }
-                                                               }
+                                                               if (a > 1)
+                                                                       a = 1;
+                                                               bl[0] = (qbyte) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
+                                                               bl[1] = (qbyte) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
+                                                               bl[2] = (qbyte) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
+                                                               stained = true;
                                                        }
-                                                       bl += 3;
                                                }
+                                               bl += 3;
                                        }
-                                       else // skip line
-                                               bl += smax3;
                                }
-                               // force lightmap upload
-                               if (stained)
-                                       surf->cached_dlight = true;
+                               else // skip line
+                                       bl += smax3;
                        }
+                       // force lightmap upload
+                       if (stained)
+                               surface->cached_dlight = true;
                }
        }
 
-       if (node->children[0]->contents >= 0)
+       if (node->children[0]->plane)
        {
-               if (node->children[1]->contents >= 0)
+               if (node->children[1]->plane)
                {
-                       R_StainNode(node->children[0], model, origin, radius, icolor);
+                       R_StainNode(node->children[0], model, origin, radius, fcolor);
                        node = node->children[1];
                        goto loc0;
                }
@@ -564,43 +242,45 @@ loc0:
                        goto loc0;
                }
        }
-       else if (node->children[1]->contents >= 0)
+       else if (node->children[1]->plane)
        {
                node = node->children[1];
                goto loc0;
        }
 }
 
-void R_Stain (vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, int cr2, int cg2, int cb2, int ca2)
+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)
 {
-       int n, icolor[8];
+       int n;
+       float fcolor[8];
        entity_render_t *ent;
        model_t *model;
        vec3_t org;
-       icolor[0] = cr1;
-       icolor[1] = cg1;
-       icolor[2] = cb1;
-       icolor[3] = ca1;
-       icolor[4] = cr2;
-       icolor[5] = cg2;
-       icolor[6] = cb2;
-       icolor[7] = ca2;
-
-       model = cl.worldmodel;
-       R_StainNode(model->nodes + model->hulls[0].firstclipnode, model, origin, radius, icolor);
+       if (r_refdef.worldmodel == NULL || !r_refdef.worldmodel->brush.data_nodes || !r_refdef.worldmodel->brushq1.lightdata)
+               return;
+       fcolor[0] = cr1;
+       fcolor[1] = cg1;
+       fcolor[2] = cb1;
+       fcolor[3] = ca1 * (1.0f / 64.0f);
+       fcolor[4] = cr2 - cr1;
+       fcolor[5] = cg2 - cg1;
+       fcolor[6] = cb2 - cb1;
+       fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
+
+       R_StainNode(r_refdef.worldmodel->brush.data_nodes + r_refdef.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.worldmodel, origin, radius, fcolor);
 
        // look for embedded bmodels
        for (n = 0;n < cl_num_brushmodel_entities;n++)
        {
-               ent = cl_brushmodel_entities[n];
+               ent = &cl_entities[cl_brushmodel_entities[n]].render;
                model = ent->model;
                if (model && model->name[0] == '*')
                {
                        Mod_CheckLoaded(model);
-                       if (model->type == mod_brush)
+                       if (model->brush.data_nodes)
                        {
                                Matrix4x4_Transform(&ent->inversematrix, origin, org);
-                               R_StainNode(model->nodes + model->hulls[0].firstclipnode, model, org, radius, icolor);
+                               R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
                        }
                }
        }
@@ -615,1403 +295,535 @@ void R_Stain (vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, i
 =============================================================
 */
 
-static void RSurf_CopyXYZ(const surfvertex_t *in, float *out, int numverts)
+static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
 {
        int i;
-       for (i = 0;i < numverts;i++, in++, out += 4)
+       float *v;
+       rmeshstate_t m;
+       const mportal_t *portal = calldata1;
+       GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+       GL_DepthMask(false);
+       GL_DepthTest(true);
+       R_Mesh_Matrix(&r_identitymatrix);
+
+       memset(&m, 0, sizeof(m));
+       m.pointer_vertex = varray_vertex3f;
+       R_Mesh_State(&m);
+
+       i = calldata2;
+       GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
+                        ((i & 0x0038) >> 3) * (1.0f / 7.0f),
+                        ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
+                        0.125f);
+       if (PlaneDiff(r_vieworigin, (&portal->plane)) < 0)
        {
-               VectorCopy(in->v, out);
-               out[3] = 1;
+               for (i = portal->numpoints - 1, v = varray_vertex3f;i >= 0;i--, v += 3)
+                       VectorCopy(portal->points[i].position, v);
        }
+       else
+               for (i = 0, v = varray_vertex3f;i < portal->numpoints;i++, v += 3)
+                       VectorCopy(portal->points[i].position, v);
+       GL_LockArrays(0, portal->numpoints);
+       R_Mesh_Draw(0, portal->numpoints, portal->numpoints - 2, polygonelements);
+       GL_LockArrays(0, 0);
 }
 
-static void RSurf_CopyST(const surfvertex_t *in, float *out, int numverts)
+// LordHavoc: this is just a nice debugging tool, very slow
+static void R_DrawPortals(void)
 {
-       int i;
-       for (i = 0;i < numverts;i++, in++, out += 2)
+       int i, leafnum;//, portalnum;
+       mportal_t *portal;
+       float center[3], f;
+       model_t *model = r_refdef.worldmodel;
+       if (model == NULL)
+               return;
+       for (leafnum = 0;leafnum < r_refdef.worldmodel->brush.num_leafs;leafnum++)
        {
-               out[0] = in->st[0];
-               out[1] = in->st[1];
+               if (r_worldleafvisible[leafnum])
+               {
+                       //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
+                       for (portal = r_refdef.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
+                       {
+                               if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
+                               if (!R_CullBox(portal->mins, portal->maxs))
+                               {
+                                       VectorClear(center);
+                                       for (i = 0;i < portal->numpoints;i++)
+                                               VectorAdd(center, portal->points[i].position, center);
+                                       f = ixtable[portal->numpoints];
+                                       VectorScale(center, f, center);
+                                       //R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, portal, portalnum);
+                                       R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, portal, leafnum);
+                               }
+                       }
+               }
        }
 }
 
-static void RSurf_CopyUV(const surfvertex_t *in, float *out, int numverts)
+static void R_DrawCollisionBrush(colbrushf_t *brush)
 {
        int i;
-       for (i = 0;i < numverts;i++, in++, out += 2)
-       {
-               out[0] = in->uv[0];
-               out[1] = in->uv[1];
-       }
+       rmeshstate_t m;
+       memset(&m, 0, sizeof(m));
+       m.pointer_vertex = brush->points->v;
+       R_Mesh_State(&m);
+       i = (int)(((size_t)brush) / sizeof(colbrushf_t));
+       GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
+       GL_LockArrays(0, brush->numpoints);
+       R_Mesh_Draw(0, brush->numpoints, brush->numtriangles, brush->elements);
+       GL_LockArrays(0, 0);
 }
 
-static void RSurf_CopyAB(const surfvertex_t *in, float *out, int numverts)
+static void R_DrawCollisionSurface(entity_render_t *ent, msurface_t *surface)
 {
        int i;
-       for (i = 0;i < numverts;i++, in++, out += 2)
-       {
-               out[0] = in->ab[0];
-               out[1] = in->ab[1];
-       }
+       rmeshstate_t m;
+       if (!surface->num_collisiontriangles)
+               return;
+       memset(&m, 0, sizeof(m));
+       m.pointer_vertex = surface->data_collisionvertex3f;
+       R_Mesh_State(&m);
+       i = (int)(((size_t)surface) / sizeof(msurface_t));
+       GL_Color((i & 31) * (1.0f / 32.0f), ((i >> 5) & 31) * (1.0f / 32.0f), ((i >> 10) & 31) * (1.0f / 32.0f), 0.2f);
+       GL_LockArrays(0, surface->num_collisionvertices);
+       R_Mesh_Draw(0, surface->num_collisionvertices, surface->num_collisiontriangles, surface->data_collisionelement3i);
+       GL_LockArrays(0, 0);
 }
 
-static void RSurf_AddLightmapToVertexColors(const surfvertex_t *in, float *c, int numverts, const qbyte *samples, int size3, const qbyte *styles)
+void R_WorldVisibility(void)
 {
-       int i;
-       float scale;
-       const qbyte *lm;
-       if (styles[0] != 255)
+       int i, j, *mark;
+       mleaf_t *leaf;
+       mleaf_t *viewleaf;
+       model_t *model = r_refdef.worldmodel;
+
+       if (!model)
+               return;
+
+       // if possible find the leaf the view origin is in
+       viewleaf = model->brush.PointInLeaf ? model->brush.PointInLeaf(model, r_vieworigin) : NULL;
+       // if possible fetch the visible cluster bits
+       if (model->brush.FatPVS)
+               model->brush.FatPVS(model, r_vieworigin, 2, r_pvsbits, sizeof(r_pvsbits));
+
+       // clear the visible surface and leaf flags arrays
+       memset(r_worldsurfacevisible, 0, model->num_surfaces);
+       memset(r_worldleafvisible, 0, model->brush.num_leafs);
+
+       // if the user prefers surfaceworldnode (testing?) or the viewleaf could
+       // not be found, or the viewleaf is not part of the visible world
+       // (floating around in the void), use the pvs method
+       if (r_surfaceworldnode.integer || !viewleaf || viewleaf->clusterindex < 0)
        {
-               for (i = 0;i < numverts;i++, in++, c += 4)
+               // pvs method:
+               // similar to quake's RecursiveWorldNode but without cache misses
+               for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
                {
-                       lm = samples + in->lightmapoffset;
-                       scale = d_lightstylevalue[styles[0]] * (1.0f / 32768.0f);
-                       VectorMA(c, scale, lm, c);
-                       if (styles[1] != 255)
+                       // if leaf is in current pvs and on the screen, mark its surfaces
+                       if (CHECKPVSBIT(r_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
                        {
-                               lm += size3;
-                               scale = d_lightstylevalue[styles[1]] * (1.0f / 32768.0f);
-                               VectorMA(c, scale, lm, c);
-                               if (styles[2] != 255)
-                               {
-                                       lm += size3;
-                                       scale = d_lightstylevalue[styles[2]] * (1.0f / 32768.0f);
-                                       VectorMA(c, scale, lm, c);
-                                       if (styles[3] != 255)
-                                       {
-                                               lm += size3;
-                                               scale = d_lightstylevalue[styles[3]] * (1.0f / 32768.0f);
-                                               VectorMA(c, scale, lm, c);
-                                       }
-                               }
+                               c_leafs++;
+                               r_worldleafvisible[j] = true;
+                               if (leaf->numleafsurfaces)
+                                       for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
+                                               r_worldsurfacevisible[*mark] = true;
                        }
                }
        }
+       else
+       {
+               int leafstackpos;
+               mportal_t *p;
+               mleaf_t *leafstack[8192];
+               // portal method:
+               // follows portals leading outward from viewleaf, does not venture
+               // offscreen or into leafs that are not visible, faster than Quake's
+               // RecursiveWorldNode and vastly better in unvised maps, often culls a
+               // lot of surface that pvs alone would miss
+               leafstack[0] = viewleaf;
+               leafstackpos = 1;
+               while (leafstackpos)
+               {
+                       c_leafs++;
+                       leaf = leafstack[--leafstackpos];
+                       r_worldleafvisible[leaf - model->brush.data_leafs] = true;
+                       // mark any surfaces bounding this leaf
+                       if (leaf->numleafsurfaces)
+                               for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
+                                       r_worldsurfacevisible[*mark] = true;
+                       // follow portals into other leafs
+                       // the checks are:
+                       // if viewer is behind portal (portal faces outward into the scene)
+                       // and the portal polygon's bounding box is on the screen
+                       // and the leaf has not been visited yet
+                       // and the leaf is visible in the pvs
+                       // (the first two checks won't cause as many cache misses as the leaf checks)
+                       for (p = leaf->portals;p;p = p->next)
+                               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))
+                                       leafstack[leafstackpos++] = p->past;
+               }
+       }
+
+       if (r_drawportals.integer)
+               R_DrawPortals();
+}
+
+void R_Q1BSP_DrawSky(entity_render_t *ent)
+{
+       if (ent->model == NULL)
+               return;
+       if (r_drawcollisionbrushes.integer < 2)
+               R_DrawSurfaces(ent, true);
 }
 
-static void RSurf_FogColors(const float *v, float *c, float colorscale, int numverts, const float *modelorg)
+void R_Q1BSP_Draw(entity_render_t *ent)
 {
-       int i;
-       float diff[3], f;
-       if (fogenabled)
+       if (ent->model == NULL)
+               return;
+       c_bmodels++;
+       if (r_drawcollisionbrushes.integer < 2)
+               R_DrawSurfaces(ent, false);
+       if (r_drawcollisionbrushes.integer >= 1 && ent->model->brush.num_brushes)
+       {
+               int i;
+               model_t *model = ent->model;
+               msurface_t *surface;
+               q3mbrush_t *brush;
+               R_Mesh_Matrix(&ent->matrix);
+               GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
+               GL_DepthMask(false);
+               GL_DepthTest(true);
+               qglPolygonOffset(r_drawcollisionbrushes_polygonfactor.value, r_drawcollisionbrushes_polygonoffset.value);
+               for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
+                       if (brush->colbrushf && brush->colbrushf->numtriangles)
+                               R_DrawCollisionBrush(brush->colbrushf);
+               for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
+                       if (surface->num_collisiontriangles)
+                               R_DrawCollisionSurface(ent, surface);
+               qglPolygonOffset(0, 0);
+       }
+}
+
+typedef struct r_q1bsp_getlightinfo_s
+{
+       model_t *model;
+       vec3_t relativelightorigin;
+       float lightradius;
+       int *outleaflist;
+       qbyte *outleafpvs;
+       int outnumleafs;
+       int *outsurfacelist;
+       qbyte *outsurfacepvs;
+       int outnumsurfaces;
+       vec3_t outmins;
+       vec3_t outmaxs;
+       vec3_t lightmins;
+       vec3_t lightmaxs;
+       const qbyte *pvs;
+}
+r_q1bsp_getlightinfo_t;
+
+void R_Q1BSP_RecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, mnode_t *node)
+{
+       int sides;
+       mleaf_t *leaf;
+       for (;;)
        {
-               for (i = 0;i < numverts;i++, v += 4, c += 4)
+               if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
+                       return;
+               if (!node->plane)
+                       break;
+               sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, node->plane) - 1;
+               if (sides == 2)
                {
-                       VectorSubtract(v, modelorg, diff);
-                       f = colorscale * (1 - exp(fogdensity/DotProduct(diff, diff)));
-                       VectorScale(c, f, c);
+                       R_Q1BSP_RecursiveGetLightInfo(info, node->children[0]);
+                       node = node->children[1];
                }
+               else
+                       node = node->children[sides];
        }
-       else if (colorscale != 1)
-               for (i = 0;i < numverts;i++, c += 4)
-                       VectorScale(c, colorscale, c);
-}
-
-static void RSurf_FoggedColors(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
-{
-       int i;
-       float diff[3], f;
-       r *= colorscale;
-       g *= colorscale;
-       b *= colorscale;
-       if (fogenabled)
+       leaf = (mleaf_t *)node;
+       if (info->pvs == NULL || CHECKPVSBIT(info->pvs, leaf->clusterindex))
        {
-               for (i = 0;i < numverts;i++, v += 4, c += 4)
+               info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
+               info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
+               info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
+               info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
+               info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
+               info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
+               if (info->outleafpvs)
                {
-                       VectorSubtract(v, modelorg, diff);
-                       f = 1 - exp(fogdensity/DotProduct(diff, diff));
-                       c[0] = r * f;
-                       c[1] = g * f;
-                       c[2] = b * f;
-                       c[3] = a;
+                       int leafindex = leaf - info->model->brush.data_leafs;
+                       if (!CHECKPVSBIT(info->outleafpvs, leafindex))
+                       {
+                               SETPVSBIT(info->outleafpvs, leafindex);
+                               info->outleaflist[info->outnumleafs++] = leafindex;
+                       }
                }
-       }
-       else
-       {
-               for (i = 0;i < numverts;i++, c += 4)
+               if (info->outsurfacepvs)
                {
-                       c[0] = r;
-                       c[1] = g;
-                       c[2] = b;
-                       c[3] = a;
+                       int leafsurfaceindex;
+                       for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
+                       {
+                               int surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
+                               if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
+                               {
+                                       msurface_t *surface = info->model->data_surfaces + surfaceindex;
+                                       if (BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
+                                       if ((surface->texture->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
+                                       {
+                                               int triangleindex, t;
+                                               const int *e;
+                                               const vec_t *v[3];
+                                               for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
+                                               {
+                                                       v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
+                                                       v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
+                                                       v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
+                                                       if (PointInfrontOfTriangle(info->relativelightorigin, v[0], v[1], v[2]) && info->lightmaxs[0] > min(v[0][0], min(v[1][0], v[2][0])) && info->lightmins[0] < max(v[0][0], max(v[1][0], v[2][0])) && info->lightmaxs[1] > min(v[0][1], min(v[1][1], v[2][1])) && info->lightmins[1] < max(v[0][1], max(v[1][1], v[2][1])) && info->lightmaxs[2] > min(v[0][2], min(v[1][2], v[2][2])) && info->lightmins[2] < max(v[0][2], max(v[1][2], v[2][2])))
+                                                       {
+                                                               SETPVSBIT(info->outsurfacepvs, surfaceindex);
+                                                               info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
+                                                               break;
+                                                       }
+                                               }
+                                       }
+                               }
+                       }
                }
        }
 }
 
-static void RSurf_FogPassColors(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
+void R_Q1BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outleaflist, qbyte *outleafpvs, int *outnumleafspointer, int *outsurfacelist, qbyte *outsurfacepvs, int *outnumsurfacespointer)
 {
-       int i;
-       float diff[3], f;
-       r *= colorscale;
-       g *= colorscale;
-       b *= colorscale;
-       for (i = 0;i < numverts;i++, v += 4, c += 4)
+       r_q1bsp_getlightinfo_t info;
+       VectorCopy(relativelightorigin, info.relativelightorigin);
+       info.lightradius = lightradius;
+       info.lightmins[0] = info.relativelightorigin[0] - info.lightradius;
+       info.lightmins[1] = info.relativelightorigin[1] - info.lightradius;
+       info.lightmins[2] = info.relativelightorigin[2] - info.lightradius;
+       info.lightmaxs[0] = info.relativelightorigin[0] + info.lightradius;
+       info.lightmaxs[1] = info.relativelightorigin[1] + info.lightradius;
+       info.lightmaxs[2] = info.relativelightorigin[2] + info.lightradius;
+       if (ent->model == NULL)
        {
-               VectorSubtract(v, modelorg, diff);
-               f = exp(fogdensity/DotProduct(diff, diff));
-               c[0] = r;
-               c[1] = g;
-               c[2] = b;
-               c[3] = a * f;
+               VectorCopy(info.lightmins, outmins);
+               VectorCopy(info.lightmaxs, outmaxs);
+               *outnumleafspointer = 0;
+               *outnumsurfacespointer = 0;
+               return;
+       }
+       info.model = ent->model;
+       info.outleaflist = outleaflist;
+       info.outleafpvs = outleafpvs;
+       info.outnumleafs = 0;
+       info.outsurfacelist = outsurfacelist;
+       info.outsurfacepvs = outsurfacepvs;
+       info.outnumsurfaces = 0;
+       VectorCopy(info.relativelightorigin, info.outmins);
+       VectorCopy(info.relativelightorigin, info.outmaxs);
+       memset(outleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
+       memset(outsurfacepvs, 0, (info.model->nummodelsurfaces + 7) >> 3);
+       if (info.model->brush.GetPVS)
+               info.pvs = info.model->brush.GetPVS(info.model, info.relativelightorigin);
+       else
+               info.pvs = NULL;
+       R_UpdateAllTextureInfo(ent);
+       if (r_shadow_compilingrtlight)
+       {
+               // use portal recursion for exact light volume culling, and exact surface checking
+               Portal_Visibility(info.model, info.relativelightorigin, info.outleaflist, info.outleafpvs, &info.outnumleafs, info.outsurfacelist, info.outsurfacepvs, &info.outnumsurfaces, NULL, 0, true, info.lightmins, info.lightmaxs, info.outmins, info.outmaxs);
+       }
+       else if (r_shadow_realtime_dlight_portalculling.integer)
+       {
+               // use portal recursion for exact light volume culling, but not the expensive exact surface checking
+               Portal_Visibility(info.model, info.relativelightorigin, info.outleaflist, info.outleafpvs, &info.outnumleafs, info.outsurfacelist, info.outsurfacepvs, &info.outnumsurfaces, NULL, 0, r_shadow_realtime_dlight_portalculling.integer >= 2, info.lightmins, info.lightmaxs, info.outmins, info.outmaxs);
+       }
+       else
+       {
+               // use BSP recursion as lights are often small
+               R_Q1BSP_RecursiveGetLightInfo(&info, info.model->brush.data_nodes);
        }
-}
 
-static void RSurf_ScaleColors(float *c, float scale, int numverts)
-{
-       int i;
-       if (scale != 1)
-               for (i = 0;i < numverts;i++, c += 4)
-                       VectorScale(c, scale, c);
+       // limit combined leaf box to light boundaries
+       outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
+       outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
+       outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
+       outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
+       outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
+       outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
+
+       *outnumleafspointer = info.outnumleafs;
+       *outnumsurfacespointer = info.outnumsurfaces;
 }
 
-static int RSurf_LightSeparate(const matrix4x4_t *matrix, const int *dlightbits, int numverts, const float *vert, float *color)
+extern float *rsurface_vertex3f;
+extern float *rsurface_svector3f;
+extern float *rsurface_tvector3f;
+extern float *rsurface_normal3f;
+extern void RSurf_SetVertexPointer(const entity_render_t *ent, const texture_t *texture, const msurface_t *surface, const vec3_t modelorg);
+
+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)
 {
-       float f;
-       const float *v;
-       float *c;
-       int i, l, lit = false;
-       rdlight_t *rd;
-       vec3_t lightorigin;
-       for (l = 0;l < r_numdlights;l++)
+       model_t *model = ent->model;
+       msurface_t *surface;
+       int surfacelistindex;
+       float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
+       vec3_t modelorg;
+       texture_t *texture;
+       // check the box in modelspace, it was already checked in worldspace
+       if (!BoxesOverlap(ent->model->normalmins, ent->model->normalmaxs, lightmins, lightmaxs))
+               return;
+       if (r_drawcollisionbrushes.integer >= 2)
+               return;
+       if (!r_shadow_compilingrtlight)
+               R_UpdateAllTextureInfo(ent);
+       if (model->brush.shadowmesh)
        {
-               if (dlightbits[l >> 5] & (1 << (l & 31)))
+               R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
+               if (r_shadow_compilingrtlight)
                {
-                       rd = &r_dlight[l];
-                       Matrix4x4_Transform(matrix, rd->origin, lightorigin);
-                       for (i = 0, v = vert, c = color;i < numverts;i++, v += 4, c += 4)
+                       for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
                        {
-                               f = VectorDistance2(v, lightorigin) + LIGHTOFFSET;
-                               if (f < rd->cullradius2)
-                               {
-                                       f = (1.0f / f) - rd->subtract;
-                                       VectorMA(c, f, rd->light, c);
-                                       lit = true;
-                               }
+                               surface = model->data_surfaces + surfacelist[surfacelistindex];
+                               texture = surface->texture;
+                               if ((texture->basematerialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
+                                       continue;
+                               if (texture->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
+                                       continue;
+                               R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
+                       }
+               }
+               else
+               {
+                       for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
+                       {
+                               surface = model->data_surfaces + surfacelist[surfacelistindex];
+                               texture = surface->texture->currentframe;
+                               if ((texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
+                                       continue;
+                               if (texture->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
+                                       continue;
+                               R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
                        }
                }
+               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 + projectdistance, numshadowmark, shadowmarklist);
        }
-       return lit;
-}
-
-// note: this untransforms lights to do the checking,
-// and takes surf->mesh->vertex data
-static int RSurf_LightCheck(const int *dlightbits, surfmesh_t *mesh)
-{
-       int i, l;
-       rdlight_t *rd;
-       vec3_t lightorigin;
-       surfvertex_t *sv;
-       for (l = 0;l < r_numdlights;l++)
+       else
        {
-               if (dlightbits[l >> 5] & (1 << (l & 31)))
+               projectdistance = lightradius + ent->model->radius*2;
+               Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
+               for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
                {
-                       rd = &r_dlight[l];
-                       softwareuntransform(rd->origin, lightorigin);
-                       for (i = 0, sv = mesh->vertex;i < mesh->numverts;i++, sv++)
-                               if (VectorDistance2(sv->v, lightorigin) < rd->cullradius2)
-                                       return true;
+                       surface = model->data_surfaces + surfacelist[surfacelistindex];
+                       // FIXME: get current skin
+                       texture = surface->texture;//R_FetchAliasSkin(ent, surface->groupmesh);
+                       if (texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT) || !surface->num_triangles)
+                               continue;
+                       RSurf_SetVertexPointer(ent, texture, surface, modelorg);
+                       // identify lit faces within the bounding box
+                       R_Shadow_PrepareShadowMark(surface->groupmesh->num_triangles);
+                       R_Shadow_MarkVolumeFromBox(surface->num_firsttriangle, surface->num_triangles, rsurface_vertex3f, surface->groupmesh->data_element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
+                       R_Shadow_VolumeFromList(surface->groupmesh->num_vertices, surface->groupmesh->num_triangles, rsurface_vertex3f, surface->groupmesh->data_element3i, surface->groupmesh->data_neighbor3i, relativelightorigin, projectdistance, numshadowmark, shadowmarklist);
                }
        }
-       return false;
 }
 
-static void RSurfShader_Sky(const entity_render_t *ent, const msurface_t *firstsurf)
+void R_Q1BSP_DrawLight(entity_render_t *ent, float *lightcolor, int numsurfaces, const int *surfacelist)
 {
-       const msurface_t *surf;
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-
-       // LordHavoc: HalfLife maps have freaky skypolys...
-       if (ent->model->ishlbsp)
+       model_t *model = ent->model;
+       msurface_t *surface;
+       texture_t *texture;
+       int surfacelistindex;
+       vec3_t modelorg;
+       if (r_drawcollisionbrushes.integer >= 2)
                return;
-
-       if (skyrendernow)
-       {
-               skyrendernow = false;
-               if (skyrendermasked)
-                       R_Sky();
-       }
-
-       // draw depth-only polys
-       memset(&m, 0, sizeof(m));
-       if (skyrendermasked)
+       if (r_shadow_compilingrtlight)
        {
-               m.blendfunc1 = GL_ZERO;
-               m.blendfunc2 = GL_ONE;
+               // if compiling an rtlight, capture the meshes
+               int tri;
+               int *e;
+               float *lightmins, *lightmaxs, *v[3], *vertex3f;
+               for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
+               {
+                       surface = model->data_surfaces + surfacelist[surfacelistindex];
+                       texture = surface->texture;
+                       if ((texture->basematerialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) != MATERIALFLAG_WALL || !surface->num_triangles)
+                               continue;
+                       e = surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle;
+                       vertex3f = surface->groupmesh->data_vertex3f;
+                       lightmins = r_shadow_compilingrtlight->cullmins;
+                       lightmaxs = r_shadow_compilingrtlight->cullmaxs;
+                       for (tri = 0;tri < surface->num_triangles;tri++, e += 3)
+                       {
+                               v[0] = vertex3f + e[0] * 3;
+                               v[1] = vertex3f + e[1] * 3;
+                               v[2] = vertex3f + e[2] * 3;
+                               if (PointInfrontOfTriangle(r_shadow_compilingrtlight->shadoworigin, v[0], v[1], v[2]) && 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])))
+                                       Mod_ShadowMesh_AddMesh(r_shadow_mempool, r_shadow_compilingrtlight->static_meshchain_light, surface->texture->skin.base, surface->texture->skin.gloss, surface->texture->skin.nmap, surface->groupmesh->data_vertex3f, surface->groupmesh->data_svector3f, surface->groupmesh->data_tvector3f, surface->groupmesh->data_normal3f, surface->groupmesh->data_texcoordtexture2f, 1, e);
+                       }
+               }
        }
        else
        {
-               // fog sky
-               m.blendfunc1 = GL_ONE;
-               m.blendfunc2 = GL_ZERO;
-       }
-       m.depthwrite = true;
-       m.matrix = ent->matrix;
-       for (surf = firstsurf;surf;surf = surf->chain)
-       {
-               for (mesh = surf->mesh;mesh;mesh = mesh->chain)
+               R_UpdateAllTextureInfo(ent);
+               Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
+               for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
                {
-                       m.numtriangles = mesh->numtriangles;
-                       m.numverts = mesh->numverts;
-                       if (R_Mesh_Draw_GetBuffer(&m, false))
-                       {
-                               memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                               RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                               if (skyrendermasked)
-                                       memset(m.color, 0, m.numverts * sizeof(float[4]));
+                       if (ent == r_refdef.worldentity && !r_worldsurfacevisible[surfacelist[surfacelistindex]])
+                               continue;
+                       surface = model->data_surfaces + surfacelist[surfacelistindex];
+                       texture = surface->texture->currentframe;
+                       // FIXME: transparent surfaces need to be lit later
+                       if ((texture->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) != MATERIALFLAG_WALL || !surface->num_triangles)
+                               continue;
+                       if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
+                               qglDisable(GL_CULL_FACE);
+                       RSurf_SetVertexPointer(ent, texture, surface, modelorg);
+                       if (!rsurface_svector3f)
+                       {
+                               rsurface_svector3f = varray_svector3f;
+                               rsurface_tvector3f = varray_tvector3f;
+                               rsurface_normal3f = varray_normal3f;
+                               Mod_BuildTextureVectorsAndNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, rsurface_vertex3f, surface->groupmesh->data_texcoordtexture2f, surface->groupmesh->data_element3i + surface->num_firsttriangle * 3, rsurface_svector3f, rsurface_tvector3f, rsurface_normal3f, r_smoothnormals_areaweighting.integer);
+                       }
+                       if (ent->colormap >= 0)
+                       {
+                               vec3_t lightcolorpants, lightcolorshirt;
+                               // 128-224 are backwards ranges
+                               int b = (ent->colormap & 0xF) << 4;b += (b >= 128 && b < 224) ? 4 : 12;
+                               if (texture->skin.pants && b < 224)
+                               {
+                                       qbyte *bcolor = (qbyte *) (&palette_complete[b]);
+                                       lightcolorpants[0] = lightcolor[0] * bcolor[0] * (1.0f / 255.0f);
+                                       lightcolorpants[1] = lightcolor[1] * bcolor[1] * (1.0f / 255.0f);
+                                       lightcolorpants[2] = lightcolor[2] * bcolor[2] * (1.0f / 255.0f);
+                               }
+                               else
+                                       VectorClear(lightcolorpants);
+                               // 128-224 are backwards ranges
+                               b = (ent->colormap & 0xF0);b += (b >= 128 && b < 224) ? 4 : 12;
+                               if (texture->skin.shirt && b < 224)
+                               {
+                                       qbyte *bcolor = (qbyte *) (&palette_complete[b]);
+                                       lightcolorshirt[0] = lightcolor[0] * bcolor[0] * (1.0f / 255.0f);
+                                       lightcolorshirt[1] = lightcolor[1] * bcolor[1] * (1.0f / 255.0f);
+                                       lightcolorshirt[2] = lightcolor[2] * bcolor[2] * (1.0f / 255.0f);
+                               }
                                else
-                                       R_FillColors(m.color, m.numverts, fogcolor[0] * m.colorscale, fogcolor[1] * m.colorscale, fogcolor[2] * m.colorscale, 1);
-                               R_Mesh_Render();
+                                       VectorClear(lightcolorshirt);
+                               R_Shadow_RenderLighting(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle), rsurface_vertex3f, rsurface_svector3f, rsurface_tvector3f, rsurface_normal3f, surface->groupmesh->data_texcoordtexture2f, lightcolor, lightcolorpants, lightcolorshirt, texture->skin.base, texture->skin.pants, texture->skin.shirt, texture->skin.nmap, texture->skin.gloss);
                        }
+                       else
+                               R_Shadow_RenderLighting(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle), rsurface_vertex3f, rsurface_svector3f, rsurface_tvector3f, rsurface_normal3f, surface->groupmesh->data_texcoordtexture2f, lightcolor, vec3_origin, vec3_origin, texture->skin.merged ? texture->skin.merged : texture->skin.base, NULL, NULL, texture->skin.nmap, texture->skin.gloss);
+                       if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
+                               qglEnable(GL_CULL_FACE);
                }
        }
 }
 
-static void RSurfShader_Water_Callback(const void *calldata1, int calldata2)
-{
-       const entity_render_t *ent = calldata1;
-       msurface_t *surf = ent->model->surfaces + calldata2;
-       float f;
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float alpha = ent->alpha * (surf->flags & SURF_DRAWNOALPHA ? 1 : r_wateralpha.value);
-       float modelorg[3];
-       Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
-
-       memset(&m, 0, sizeof(m));
-       if (ent->effects & EF_ADDITIVE)
-       {
-               m.blendfunc1 = GL_SRC_ALPHA;
-               m.blendfunc2 = GL_ONE;
-       }
-       else if (surf->currenttexture->fogtexture != NULL || alpha < 1)
-       {
-               m.blendfunc1 = GL_SRC_ALPHA;
-               m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
-       }
-       else
-       {
-               m.blendfunc1 = GL_ONE;
-               m.blendfunc2 = GL_ZERO;
-       }
-       m.tex[0] = R_GetTexture(surf->currenttexture->texture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, true))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       f = surf->flags & SURF_DRAWFULLBRIGHT ? 1.0f : ((surf->flags & SURF_LIGHTMAP) ? 0 : 0.5f);
-                       R_FillColors(m.color, m.numverts, f, f, f, alpha);
-                       if (!(surf->flags & SURF_DRAWFULLBRIGHT || ent->effects & EF_FULLBRIGHT))
-                       {
-                               if (surf->dlightframe == r_framecount)
-                                       RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
-                               if (surf->flags & SURF_LIGHTMAP)
-                                       RSurf_AddLightmapToVertexColors(mesh->vertex, m.color, m.numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
-                       }
-                       RSurf_FogColors(m.vertex, m.color, m.colorscale, m.numverts, modelorg);
-                       R_Mesh_Render();
-               }
-       }
-
-       if (fogenabled)
-       {
-               memset(&m, 0, sizeof(m));
-               m.blendfunc1 = GL_SRC_ALPHA;
-               m.blendfunc2 = GL_ONE;
-               m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
-               m.matrix = ent->matrix;
-               for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-               {
-                       m.numtriangles = mesh->numtriangles;
-                       m.numverts = mesh->numverts;
-                       if (R_Mesh_Draw_GetBuffer(&m, false))
-                       {
-                               memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                               RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                               if (m.tex[0])
-                                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                               RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], alpha, m.colorscale, m.numverts, modelorg);
-                               R_Mesh_Render();
-                       }
-               }
-       }
-}
-
-static void RSurfShader_Water(const entity_render_t *ent, const msurface_t *firstsurf)
-{
-       const msurface_t *surf;
-       vec3_t center;
-       for (surf = firstsurf;surf;surf = surf->chain)
-       {
-               if ((r_wateralpha.value < 1 && !(surf->flags & SURF_DRAWNOALPHA)) || ent->effects & EF_ADDITIVE || surf->currenttexture->fogtexture)
-               {
-                       Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                       R_MeshQueue_AddTransparent(center, RSurfShader_Water_Callback, ent, surf - ent->model->surfaces);
-               }
-               else
-                       R_MeshQueue_Add(RSurfShader_Water_Callback, ent, surf - ent->model->surfaces);
-       }
-}
-
-static void RSurfShader_Wall_Pass_BaseVertex(const entity_render_t *ent, const msurface_t *surf)
-{
-       float base;
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float modelorg[3];
-       Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
-       memset(&m, 0, sizeof(m));
-       if (ent->effects & EF_ADDITIVE)
-       {
-               m.blendfunc1 = GL_SRC_ALPHA;
-               m.blendfunc2 = GL_ONE;
-       }
-       else if (surf->currenttexture->fogtexture != NULL || ent->alpha < 1)
-       {
-               m.blendfunc1 = GL_SRC_ALPHA;
-               m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
-       }
-       else
-       {
-               m.blendfunc1 = GL_ONE;
-               m.blendfunc2 = GL_ZERO;
-       }
-       m.tex[0] = R_GetTexture(surf->currenttexture->texture);
-       base = ent->effects & EF_FULLBRIGHT ? 2.0f : r_ambient.value * (1.0f / 64.0f);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, true))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       R_FillColors(m.color, m.numverts, base, base, base, ent->alpha);
-                       if (!(ent->effects & EF_FULLBRIGHT))
-                       {
-                               if (surf->dlightframe == r_framecount)
-                                       RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
-                               if (surf->flags & SURF_LIGHTMAP)
-                                       RSurf_AddLightmapToVertexColors(mesh->vertex, m.color, m.numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
-                       }
-                       RSurf_FogColors(m.vertex, m.color, m.colorscale, m.numverts, modelorg);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_Wall_Pass_BaseFullbright(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float modelorg[3];
-       Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
-       memset(&m, 0, sizeof(m));
-       if (ent->effects & EF_ADDITIVE)
-       {
-               m.blendfunc1 = GL_SRC_ALPHA;
-               m.blendfunc2 = GL_ONE;
-       }
-       else if (surf->currenttexture->fogtexture != NULL || ent->alpha < 1)
-       {
-               m.blendfunc1 = GL_SRC_ALPHA;
-               m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
-       }
-       else
-       {
-               m.blendfunc1 = GL_ONE;
-               m.blendfunc2 = GL_ZERO;
-       }
-       m.tex[0] = R_GetTexture(surf->currenttexture->texture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, false))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       RSurf_FoggedColors(m.vertex, m.color, 1, 1, 1, ent->alpha, m.colorscale, m.numverts, modelorg);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_Wall_Pass_Glow(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float modelorg[3];
-       Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_SRC_ALPHA;
-       m.blendfunc2 = GL_ONE;
-       m.tex[0] = R_GetTexture(surf->currenttexture->glowtexture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, false))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       RSurf_FoggedColors(m.vertex, m.color, 1, 1, 1, ent->alpha, m.colorscale, m.numverts, modelorg);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_Wall_Pass_Fog(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float modelorg[3];
-       Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_SRC_ALPHA;
-       m.blendfunc2 = GL_ONE;
-       m.matrix = ent->matrix;
-       m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, false))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       if (m.tex[0])
-                               RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], ent->alpha, m.colorscale, m.numverts, modelorg);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_OpaqueWall_Pass_TripleTexCombine(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float cl;
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_ONE;
-       m.blendfunc2 = GL_ZERO;
-       m.tex[0] = R_GetTexture(surf->currenttexture->texture);
-       m.texrgbscale[0] = 1.0f;
-       m.tex[1] = R_GetTexture(surf->lightmaptexture);
-       m.texrgbscale[1] = 4.0f;
-       m.tex[2] = R_GetTexture(surf->currenttexture->detailtexture);
-       m.texrgbscale[2] = 2.0f;
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, false))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       cl = (float) (1 << lightscalebit) * m.colorscale;
-                       R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
-                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       RSurf_CopyUV(mesh->vertex, m.texcoords[1], m.numverts);
-                       RSurf_CopyAB(mesh->vertex, m.texcoords[2], m.numverts);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_OpaqueWall_Pass_BaseMTex(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float cl;
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_ONE;
-       m.blendfunc2 = GL_ZERO;
-       m.tex[0] = R_GetTexture(surf->currenttexture->texture);
-       m.tex[1] = R_GetTexture(surf->lightmaptexture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, true))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       cl = (float) (1 << lightscalebit) * m.colorscale;
-                       R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
-                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       RSurf_CopyUV(mesh->vertex, m.texcoords[1], m.numverts);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_OpaqueWall_Pass_BaseTexture(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float cl;
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_ONE;
-       m.blendfunc2 = GL_ZERO;
-       m.tex[0] = R_GetTexture(surf->currenttexture->texture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, false))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       cl = m.colorscale;
-                       R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
-                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_OpaqueWall_Pass_BaseLightmap(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float cl;
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_ZERO;
-       m.blendfunc2 = GL_SRC_COLOR;
-       m.tex[0] = R_GetTexture(surf->lightmaptexture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, true))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       cl = (float) (1 << lightscalebit) * m.colorscale;
-                       R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
-                       RSurf_CopyUV(mesh->vertex, m.texcoords[0], m.numverts);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_OpaqueWall_Pass_Light(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-
-       if (surf->dlightframe != r_framecount)
-               return;
-       if (ent->effects & EF_FULLBRIGHT)
-               return;
-
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_SRC_ALPHA;
-       m.blendfunc2 = GL_ONE;
-       m.tex[0] = R_GetTexture(surf->currenttexture->texture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               if (RSurf_LightCheck(surf->dlightbits, mesh))
-               {
-                       m.numtriangles = mesh->numtriangles;
-                       m.numverts = mesh->numverts;
-                       if (R_Mesh_Draw_GetBuffer(&m, true))
-                       {
-                               memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                               RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                               RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                               R_FillColors(m.color, m.numverts, 0, 0, 0, 1);
-                               RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
-                               RSurf_ScaleColors(m.color, m.colorscale, m.numverts);
-                               R_Mesh_Render();
-                       }
-               }
-       }
-}
-
-static void RSurfShader_OpaqueWall_Pass_Fog(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       float modelorg[3];
-       Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_SRC_ALPHA;
-       m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
-       m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, false))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       if (m.tex[0])
-                               RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], 1, m.colorscale, m.numverts, modelorg);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_OpaqueWall_Pass_BaseDetail(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_DST_COLOR;
-       m.blendfunc2 = GL_SRC_COLOR;
-       m.tex[0] = R_GetTexture(surf->currenttexture->detailtexture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, false))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       R_FillColors(m.color, m.numverts, 1, 1, 1, 1);
-                       RSurf_CopyAB(mesh->vertex, m.texcoords[0], m.numverts);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_OpaqueWall_Pass_Glow(const entity_render_t *ent, const msurface_t *surf)
-{
-       surfmesh_t *mesh;
-       rmeshbufferinfo_t m;
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_SRC_ALPHA;
-       m.blendfunc2 = GL_ONE;
-       m.tex[0] = R_GetTexture(surf->currenttexture->glowtexture);
-       m.matrix = ent->matrix;
-       for (mesh = surf->mesh;mesh;mesh = mesh->chain)
-       {
-               m.numtriangles = mesh->numtriangles;
-               m.numverts = mesh->numverts;
-               if (R_Mesh_Draw_GetBuffer(&m, false))
-               {
-                       memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
-                       RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
-                       R_FillColors(m.color, m.numverts, m.colorscale, m.colorscale, m.colorscale, 1);
-                       RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
-                       R_Mesh_Render();
-               }
-       }
-}
-
-static void RSurfShader_Wall_Fullbright_Callback(const void *calldata1, int calldata2)
-{
-       const entity_render_t *ent = calldata1;
-       const msurface_t *surf = ent->model->surfaces + calldata2;
-       RSurfShader_Wall_Pass_BaseFullbright(ent, surf);
-       if (surf->currenttexture->glowtexture)
-               RSurfShader_Wall_Pass_Glow(ent, surf);
-       if (fogenabled)
-               RSurfShader_Wall_Pass_Fog(ent, surf);
-}
-
-static void RSurfShader_Wall_Fullbright(const entity_render_t *ent, const msurface_t *firstsurf)
-{
-       const msurface_t *surf;
-       vec3_t center;
-       if (ent->effects & EF_ADDITIVE || ent->alpha < 1)
-       {
-               for (surf = firstsurf;surf;surf = surf->chain)
-               {
-                       c_brush_polys++;
-                       Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                       R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Fullbright_Callback, ent, surf - ent->model->surfaces);
-               }
-       }
-       else
-       {
-               for (surf = firstsurf;surf;surf = surf->chain)
-               {
-                       c_brush_polys++;
-                       if (surf->currenttexture->fogtexture != NULL)
-                       {
-                               Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                               R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Fullbright_Callback, ent, surf - ent->model->surfaces);
-                       }
-                       else
-                               RSurfShader_Wall_Pass_BaseFullbright(ent, surf);
-               }
-               for (surf = firstsurf;surf;surf = surf->chain)
-                       if (surf->currenttexture->glowtexture)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_Wall_Pass_Glow(ent, surf);
-               if (fogenabled)
-                       for (surf = firstsurf;surf;surf = surf->chain)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_Wall_Pass_Fog(ent, surf);
-       }
-}
-
-static void RSurfShader_Wall_Vertex_Callback(const void *calldata1, int calldata2)
-{
-       const entity_render_t *ent = calldata1;
-       const msurface_t *surf = ent->model->surfaces + calldata2;
-       RSurfShader_Wall_Pass_BaseVertex(ent, surf);
-       if (surf->currenttexture->glowtexture)
-               RSurfShader_Wall_Pass_Glow(ent, surf);
-       if (fogenabled)
-               RSurfShader_Wall_Pass_Fog(ent, surf);
-}
-
-static void RSurfShader_Wall_Vertex(const entity_render_t *ent, const msurface_t *firstsurf)
-{
-       const msurface_t *surf;
-       vec3_t center;
-       if (ent->effects & EF_ADDITIVE || ent->alpha < 1)
-       {
-               for (surf = firstsurf;surf;surf = surf->chain)
-               {
-                       c_brush_polys++;
-                       Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                       R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
-               }
-       }
-       else
-       {
-               for (surf = firstsurf;surf;surf = surf->chain)
-               {
-                       c_brush_polys++;
-                       if (surf->currenttexture->fogtexture != NULL)
-                       {
-                               Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                               R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
-                       }
-                       else
-                               RSurfShader_Wall_Pass_BaseVertex(ent, surf);
-               }
-               for (surf = firstsurf;surf;surf = surf->chain)
-                       if (surf->currenttexture->glowtexture)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_Wall_Pass_Glow(ent, surf);
-               if (fogenabled)
-                       for (surf = firstsurf;surf;surf = surf->chain)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_Wall_Pass_Fog(ent, surf);
-       }
-}
-
-static void RSurfShader_Wall_Lightmap(const entity_render_t *ent, const msurface_t *firstsurf)
-{
-       const msurface_t *surf;
-       vec3_t center;
-       if (ent->alpha < 1 || ent->effects & EF_ADDITIVE)
-       {
-               for (surf = firstsurf;surf;surf = surf->chain)
-               {
-                       c_brush_polys++;
-                       Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                       R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
-               }
-       }
-       else if (r_vertexsurfaces.integer || ent->alpha < 1 || ent->effects & EF_ADDITIVE)
-       {
-               for (surf = firstsurf;surf;surf = surf->chain)
-               {
-                       c_brush_polys++;
-                       if (surf->currenttexture->fogtexture != NULL)
-                       {
-                               Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                               R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
-                       }
-                       else
-                               RSurfShader_Wall_Pass_BaseVertex(ent, surf);
-               }
-               for (surf = firstsurf;surf;surf = surf->chain)
-                       if (surf->currenttexture->glowtexture)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_Wall_Pass_Glow(ent, surf);
-               if (fogenabled)
-                       for (surf = firstsurf;surf;surf = surf->chain)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_Wall_Pass_Fog(ent, surf);
-       }
-       else
-       {
-               if (r_textureunits.integer >= 2)
-               {
-                       if (r_textureunits.integer >= 3 && gl_combine.integer && r_detailtextures.integer)
-                       {
-                               for (surf = firstsurf;surf;surf = surf->chain)
-                               {
-                                       c_brush_polys++;
-                                       if (surf->currenttexture->fogtexture != NULL)
-                                       {
-                                               Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                                               R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
-                                       }
-                                       else
-                                               RSurfShader_OpaqueWall_Pass_TripleTexCombine(ent, surf);
-                               }
-                       }
-                       else
-                       {
-                               for (surf = firstsurf;surf;surf = surf->chain)
-                               {
-                                       c_brush_polys++;
-                                       if (surf->currenttexture->fogtexture != NULL)
-                                       {
-                                               Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                                               R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
-                                       }
-                                       else
-                                               RSurfShader_OpaqueWall_Pass_BaseMTex(ent, surf);
-                               }
-                               if (r_detailtextures.integer)
-                                       for (surf = firstsurf;surf;surf = surf->chain)
-                                               if (surf->currenttexture->fogtexture == NULL)
-                                                       RSurfShader_OpaqueWall_Pass_BaseDetail(ent, surf);
-                       }
-               }
-               else
-               {
-                       for (surf = firstsurf;surf;surf = surf->chain)
-                       {
-                               c_brush_polys++;
-                               if (surf->currenttexture->fogtexture != NULL)
-                               {
-                                       Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
-                                       R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
-                               }
-                               else
-                                       RSurfShader_OpaqueWall_Pass_BaseTexture(ent, surf);
-                       }
-                       for (surf = firstsurf;surf;surf = surf->chain)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_OpaqueWall_Pass_BaseLightmap(ent, surf);
-                       if (r_detailtextures.integer)
-                               for (surf = firstsurf;surf;surf = surf->chain)
-                                       if (surf->currenttexture->fogtexture == NULL)
-                                               RSurfShader_OpaqueWall_Pass_BaseDetail(ent, surf);
-               }
-               if (!r_dlightmap.integer)
-                       for (surf = firstsurf;surf;surf = surf->chain)
-                               if (surf->dlightframe == r_framecount)
-                                       if (surf->currenttexture->fogtexture == NULL)
-                                               RSurfShader_OpaqueWall_Pass_Light(ent, surf);
-               for (surf = firstsurf;surf;surf = surf->chain)
-                       if (surf->currenttexture->glowtexture)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_OpaqueWall_Pass_Glow(ent, surf);
-               if (fogenabled)
-                       for (surf = firstsurf;surf;surf = surf->chain)
-                               if (surf->currenttexture->fogtexture == NULL)
-                                       RSurfShader_OpaqueWall_Pass_Fog(ent, surf);
-       }
-}
-
-/*
-=============================================================
-
-       WORLD MODEL
-
-=============================================================
-*/
-
-static void R_SolidWorldNode (entity_render_t *ent)
-{
-       if (r_viewleaf->contents != CONTENTS_SOLID)
-       {
-               int portalstack;
-               mportal_t *p, *pstack[8192];
-               msurface_t *surf, **mark, **endmark;
-               mleaf_t *leaf;
-               // LordHavoc: portal-passage worldnode; follows portals leading
-               // outward from viewleaf, if a portal leads offscreen it is not
-               // followed, in indoor maps this can often cull a great deal of
-               // geometry away when pvs data is not present (useful with pvs as well)
-
-               leaf = r_viewleaf;
-               leaf->worldnodeframe = r_framecount;
-               portalstack = 0;
-       loc0:
-               c_leafs++;
-
-               leaf->visframe = r_framecount;
-
-               if (leaf->nummarksurfaces)
-               {
-                       mark = leaf->firstmarksurface;
-                       endmark = mark + leaf->nummarksurfaces;
-                       do
-                       {
-                               surf = *mark++;
-                               // make sure surfaces are only processed once
-                               if (surf->worldnodeframe == r_framecount)
-                                       continue;
-                               surf->worldnodeframe = r_framecount;
-                               if (PlaneDist(r_origin, surf->plane) < surf->plane->dist)
-                               {
-                                       if (surf->flags & SURF_PLANEBACK)
-                                               surf->visframe = r_framecount;
-                               }
-                               else
-                               {
-                                       if (!(surf->flags & SURF_PLANEBACK))
-                                               surf->visframe = r_framecount;
-                               }
-                       }
-                       while (mark < endmark);
-               }
-
-               // follow portals into other leafs
-               p = leaf->portals;
-               for (;p;p = p->next)
-               {
-                       if (DotProduct(r_origin, p->plane.normal) < p->plane.dist)
-                       {
-                               leaf = p->past;
-                               if (leaf->worldnodeframe != r_framecount)
-                               {
-                                       leaf->worldnodeframe = r_framecount;
-                                       if (leaf->contents != CONTENTS_SOLID)
-                                       {
-                                               if (R_NotCulledBox(leaf->mins, leaf->maxs))
-                                               {
-                                                       p->visframe = r_framecount;
-                                                       pstack[portalstack++] = p;
-                                                       goto loc0;
-
-       loc1:
-                                                       p = pstack[--portalstack];
-                                               }
-                                       }
-                               }
-                       }
-               }
-
-               if (portalstack)
-                       goto loc1;
-       }
-       else
-       {
-               mnode_t *nodestack[8192], *node = cl.worldmodel->nodes;
-               int nodestackpos = 0;
-               // LordHavoc: recursive descending worldnode; if portals are not
-               // available, this is a good last resort, can cull large amounts of
-               // geometry, but is more time consuming than portal-passage and renders
-               // things behind walls
-
-loc2:
-               if (R_NotCulledBox(node->mins, node->maxs))
-               {
-                       if (node->numsurfaces)
-                       {
-                               msurface_t *surf = cl.worldmodel->surfaces + node->firstsurface, *surfend = surf + node->numsurfaces;
-                               if (PlaneDiff (r_origin, node->plane) < 0)
-                               {
-                                       for (;surf < surfend;surf++)
-                                       {
-                                               if (surf->flags & SURF_PLANEBACK)
-                                                       surf->visframe = r_framecount;
-                                       }
-                               }
-                               else
-                               {
-                                       for (;surf < surfend;surf++)
-                                       {
-                                               if (!(surf->flags & SURF_PLANEBACK))
-                                                       surf->visframe = r_framecount;
-                                       }
-                               }
-                       }
-
-                       // recurse down the children
-                       if (node->children[0]->contents >= 0)
-                       {
-                               if (node->children[1]->contents >= 0)
-                               {
-                                       if (nodestackpos < 8192)
-                                               nodestack[nodestackpos++] = node->children[1];
-                                       node = node->children[0];
-                                       goto loc2;
-                               }
-                               else
-                                       ((mleaf_t *)node->children[1])->visframe = r_framecount;
-                               node = node->children[0];
-                               goto loc2;
-                       }
-                       else
-                       {
-                               ((mleaf_t *)node->children[0])->visframe = r_framecount;
-                               if (node->children[1]->contents >= 0)
-                               {
-                                       node = node->children[1];
-                                       goto loc2;
-                               }
-                               else if (nodestackpos > 0)
-                               {
-                                       ((mleaf_t *)node->children[1])->visframe = r_framecount;
-                                       node = nodestack[--nodestackpos];
-                                       goto loc2;
-                               }
-                       }
-               }
-               else if (nodestackpos > 0)
-               {
-                       node = nodestack[--nodestackpos];
-                       goto loc2;
-               }
-       }
-}
-
-static void R_PVSWorldNode()
-{
-       int portalstack, i;
-       mportal_t *p, *pstack[8192];
-       msurface_t *surf, **mark, **endmark;
-       mleaf_t *leaf;
-       qbyte *worldvis;
-
-       worldvis = Mod_LeafPVS (r_viewleaf, cl.worldmodel);
-
-       leaf = r_viewleaf;
-       leaf->worldnodeframe = r_framecount;
-       portalstack = 0;
-loc0:
-       c_leafs++;
-
-       leaf->visframe = r_framecount;
-
-       if (leaf->nummarksurfaces)
-       {
-               mark = leaf->firstmarksurface;
-               endmark = mark + leaf->nummarksurfaces;
-               do
-               {
-                       surf = *mark++;
-                       // make sure surfaces are only processed once
-                       if (surf->worldnodeframe == r_framecount)
-                               continue;
-                       surf->worldnodeframe = r_framecount;
-                       if (PlaneDist(r_origin, surf->plane) < surf->plane->dist)
-                       {
-                               if (surf->flags & SURF_PLANEBACK)
-                                       surf->visframe = r_framecount;
-                       }
-                       else
-                       {
-                               if (!(surf->flags & SURF_PLANEBACK))
-                                       surf->visframe = r_framecount;
-                       }
-               }
-               while (mark < endmark);
-       }
-
-       // follow portals into other leafs
-       for (p = leaf->portals;p;p = p->next)
-       {
-               if (DotProduct(r_origin, p->plane.normal) < p->plane.dist)
-               {
-                       leaf = p->past;
-                       if (leaf->worldnodeframe != r_framecount)
-                       {
-                               leaf->worldnodeframe = r_framecount;
-                               if (leaf->contents != CONTENTS_SOLID)
-                               {
-                                       i = (leaf - cl.worldmodel->leafs) - 1;
-                                       if (worldvis[i>>3] & (1<<(i&7)))
-                                       {
-                                               if (R_NotCulledBox(leaf->mins, leaf->maxs))
-                                               {
-                                                       pstack[portalstack++] = p;
-                                                       goto loc0;
-
-loc1:
-                                                       p = pstack[--portalstack];
-                                               }
-                                       }
-                               }
-                       }
-               }
-       }
-
-       if (portalstack)
-               goto loc1;
-}
-
-Cshader_t Cshader_wall_vertex = {{NULL, RSurfShader_Wall_Vertex}, NULL};
-Cshader_t Cshader_wall_lightmap = {{NULL, RSurfShader_Wall_Lightmap}, NULL};
-Cshader_t Cshader_wall_fullbright = {{NULL, RSurfShader_Wall_Fullbright}, NULL};
-Cshader_t Cshader_water = {{NULL, RSurfShader_Water}, NULL};
-Cshader_t Cshader_sky = {{RSurfShader_Sky, NULL}, NULL};
-
-int Cshader_count = 5;
-Cshader_t *Cshaders[5] =
-{
-       &Cshader_wall_vertex,
-       &Cshader_wall_lightmap,
-       &Cshader_wall_fullbright,
-       &Cshader_water,
-       &Cshader_sky
-};
-
-void R_PrepareSurfaces(entity_render_t *ent)
-{
-       int i, alttextures, texframe, framecount;
-       texture_t *t;
-       model_t *model;
-       msurface_t *surf;
-
-       for (i = 0;i < Cshader_count;i++)
-               Cshaders[i]->chain = NULL;
-
-       model = ent->model;
-       alttextures = ent->frame != 0;
-       texframe = (int)(cl.time * 5.0f);
-
-       for (i = 0;i < model->nummodelsurfaces;i++)
-       {
-               surf = model->modelsortedsurfaces[i];
-               if (surf->visframe == r_framecount)
-               {
-                       if (surf->insertframe != r_framecount)
-                       {
-                               surf->insertframe = r_framecount;
-                               c_faces++;
-                               t = surf->texinfo->texture;
-                               if (t->animated)
-                               {
-                                       framecount = t->anim_total[alttextures];
-                                       if (framecount >= 2)
-                                               surf->currenttexture = t->anim_frames[alttextures][texframe % framecount];
-                                       else
-                                               surf->currenttexture = t->anim_frames[alttextures][0];
-                               }
-                               else
-                                       surf->currenttexture = t;
-                       }
-
-                       surf->chain = surf->shader->chain;
-                       surf->shader->chain = surf;
-               }
-       }
-}
-
-void R_DrawSurfaces (entity_render_t *ent, int type)
-{
-       int                     i;
-       Cshader_t       *shader;
-
-       for (i = 0;i < Cshader_count;i++)
-       {
-               shader = Cshaders[i];
-               if (shader->chain && shader->shaderfunc[type])
-                       shader->shaderfunc[type](ent, shader->chain);
-       }
-}
-
-static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
-{
-       int i;
-       float *v;
-       rmeshbufferinfo_t m;
-       const entity_render_t *ent = calldata1;
-       const mportal_t *portal = ent->model->portals + calldata2;
-       memset(&m, 0, sizeof(m));
-       m.blendfunc1 = GL_SRC_ALPHA;
-       m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
-       m.numverts = portal->numpoints;
-       m.numtriangles = portal->numpoints - 2;
-       m.matrix = ent->matrix;
-       if (R_Mesh_Draw_GetBuffer(&m, false))
-       {
-               for (i = 0;i < m.numtriangles;i++)
-               {
-                       m.index[i * 3 + 0] = 0;
-                       m.index[i * 3 + 1] = i + 1;
-                       m.index[i * 3 + 2] = i + 2;
-               }
-               i = portal - ent->model->portals;
-               R_FillColors(m.color, m.numverts,
-                       ((i & 0x0007) >> 0) * (1.0f / 7.0f) * m.colorscale,
-                       ((i & 0x0038) >> 3) * (1.0f / 7.0f) * m.colorscale,
-                       ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * m.colorscale,
-                       0.125f);
-               if (PlaneDiff(r_origin, (&portal->plane)) > 0)
-               {
-                       for (i = portal->numpoints - 1, v = m.vertex;i >= 0;i--, v += 4)
-                               VectorCopy(portal->points[i].position, v);
-               }
-               else
-                       for (i = 0, v = m.vertex;i < portal->numpoints;i++, v += 4)
-                               VectorCopy(portal->points[i].position, v);
-               R_Mesh_Render();
-       }
-}
-
-void R_DrawPortals(entity_render_t *ent)
-{
-       int i;
-       mportal_t *portal, *endportal;
-       float temp[3], center[3], f;
-
-       if (r_drawportals.integer < 1)
-               return;
-
-       for (portal = ent->model->portals, endportal = portal + ent->model->numportals;portal < endportal;portal++)
-       {
-               if (portal->here->visframe == r_framecount || portal->past->visframe == r_framecount)
-               {
-                       VectorClear(temp);
-                       for (i = 0;i < portal->numpoints;i++)
-                               VectorAdd(temp, portal->points[i].position, temp);
-                       f = ixtable[portal->numpoints];
-                       VectorScale(temp, f, temp);
-                       Matrix4x4_Transform(&ent->matrix, temp, center);
-                       R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, ent, portal - ent->model->portals);
-               }
-       }
-}
-
-void R_SetupForBModelRendering(entity_render_t *ent)
-{
-       int                     i;
-       msurface_t      *surf;
-       model_t         *model;
-       vec3_t          modelorg;
-
-       // because bmodels can be reused, we have to decide which things to render
-       // from scratch every time
-
-       model = ent->model;
-
-       Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
-       for (i = 0;i < model->nummodelsurfaces;i++)
-       {
-               surf = model->modelsortedsurfaces[i];
-               if (((surf->flags & SURF_PLANEBACK) == 0) == (PlaneDiff(modelorg, surf->plane) >= 0))
-                       surf->visframe = r_framecount;
-               else
-                       surf->visframe = -1;
-               surf->worldnodeframe = -1;
-               surf->lightframe = -1;
-               surf->dlightframe = -1;
-               surf->insertframe = -1;
-       }
-}
-
-void R_SetupForWorldRendering(entity_render_t *ent)
-{
-       // there is only one instance of the world, but it can be rendered in
-       // multiple stages
-}
-
-static void R_SurfMarkLights (entity_render_t *ent)
-{
-       int                     i;
-       msurface_t      *surf;
-
-       if (r_dynamic.integer)
-               R_MarkLights(ent);
-
-       if (!r_vertexsurfaces.integer)
-       {
-               for (i = 0;i < ent->model->nummodelsurfaces;i++)
-               {
-                       surf = ent->model->modelsortedsurfaces[i];
-                       if (surf->visframe == r_framecount && surf->lightmaptexture != NULL)
-                       {
-                               if (surf->cached_dlight
-                                || surf->cached_ambient != r_ambient.value
-                                || surf->cached_lightscalebit != lightscalebit)
-                                       R_BuildLightMap(ent, surf, false); // base lighting changed
-                               else if (r_dynamic.integer)
-                               {
-                                       if  (surf->styles[0] != 255 && (d_lightstylevalue[surf->styles[0]] != surf->cached_light[0]
-                                        || (surf->styles[1] != 255 && (d_lightstylevalue[surf->styles[1]] != surf->cached_light[1]
-                                        || (surf->styles[2] != 255 && (d_lightstylevalue[surf->styles[2]] != surf->cached_light[2]
-                                        || (surf->styles[3] != 255 && (d_lightstylevalue[surf->styles[3]] != surf->cached_light[3]))))))))
-                                               R_BuildLightMap(ent, surf, false); // base lighting changed
-                                       else if (surf->dlightframe == r_framecount && r_dlightmap.integer)
-                                               R_BuildLightMap(ent, surf, true); // only dlights
-                               }
-                       }
-               }
-       }
-}
-
-void R_MarkWorldLights(entity_render_t *ent)
-{
-       R_SetupForWorldRendering(ent);
-       R_SurfMarkLights(ent);
-}
-
-/*
-=============
-R_DrawWorld
-=============
-*/
-void R_DrawWorld (entity_render_t *ent)
-{
-       R_SetupForWorldRendering(ent);
-
-       if (r_viewleaf->contents == CONTENTS_SOLID || r_novis.integer || r_viewleaf->compressed_vis == NULL)
-               R_SolidWorldNode (ent);
-       else
-               R_PVSWorldNode (ent);
-}
-
-/*
-=================
-R_DrawBrushModel
-=================
-*/
-void R_DrawBrushModelSky (entity_render_t *ent)
-{
-       R_SetupForBModelRendering(ent);
-
-       R_PrepareSurfaces(ent);
-       R_DrawSurfaces(ent, SHADERSTAGE_SKY);
-}
-
-void R_DrawBrushModelNormal (entity_render_t *ent)
-{
-       c_bmodels++;
-
-       // have to flush queue because of possible lightmap reuse
-       R_Mesh_Render();
-
-       R_SetupForBModelRendering(ent);
-
-       R_SurfMarkLights(ent);
-
-       R_PrepareSurfaces(ent);
-
-       if (!skyrendermasked)
-               R_DrawSurfaces(ent, SHADERSTAGE_SKY);
-       R_DrawSurfaces(ent, SHADERSTAGE_NORMAL);
-}
-
-static void gl_surf_start(void)
+#if 0
+static void gl_surf_start(void)
 {
 }
 
@@ -2022,22 +834,20 @@ static void gl_surf_shutdown(void)
 static void gl_surf_newmap(void)
 {
 }
+#endif
 
 void GL_Surf_Init(void)
 {
-       int i;
-       dlightdivtable[0] = 4194304;
-       for (i = 1;i < 32768;i++)
-               dlightdivtable[i] = 4194304 / (i << 7);
 
        Cvar_RegisterVariable(&r_ambient);
-       Cvar_RegisterVariable(&r_vertexsurfaces);
-       Cvar_RegisterVariable(&r_dlightmap);
        Cvar_RegisterVariable(&r_drawportals);
        Cvar_RegisterVariable(&r_testvis);
-       Cvar_RegisterVariable(&r_floatbuildlightmap);
        Cvar_RegisterVariable(&r_detailtextures);
+       Cvar_RegisterVariable(&r_surfaceworldnode);
+       Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonfactor);
+       Cvar_RegisterVariable(&r_drawcollisionbrushes_polygonoffset);
+       Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
 
-       R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);
+       //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);
 }