made darkplaces compile successfully with g++ to test for errors C doesn't care about...
[xonotic/darkplaces.git] / gl_rsurf.c
index 797a8ec..bec9823 100644 (file)
@@ -21,212 +21,26 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #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_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"};
 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"};
-cvar_t gl_lightmaps = {0, "gl_lightmaps", "0"};
-
-static int dlightdivtable[32768];
-
-static int R_IntAddDynamicLights (const matrix4x4_t *matrix, msurface_t *surface)
-{
-       int sdtable[256], lnum, td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, red, green, blue, lit, dist2, impacts, impactt, subtract, k;
-       unsigned int *bl;
-       float dist, impact[3], local[3];
-       dlight_t *light;
-
-       lit = false;
-
-       smax = (surface->extents[0] >> 4) + 1;
-       tmax = (surface->extents[1] >> 4) + 1;
-       smax3 = smax * 3;
-
-       for (lnum = 0, light = r_dlight;lnum < r_numdlights;lnum++, light++)
-       {
-               if (!(surface->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
-                       continue;                                       // not lit by this light
-
-               Matrix4x4_Transform(matrix, light->origin, local);
-               dist = DotProduct (local, surface->plane->normal) - surface->plane->dist;
-
-               // for comparisons to minimum acceptable light
-               // compensate for LIGHTOFFSET
-               maxdist = (int) light->rtlight.lightmap_cullradius2 + LIGHTOFFSET;
-
-               dist2 = dist * dist;
-               dist2 += LIGHTOFFSET;
-               if (dist2 >= maxdist)
-                       continue;
-
-               if (surface->plane->type < 3)
-               {
-                       VectorCopy(local, impact);
-                       impact[surface->plane->type] -= dist;
-               }
-               else
-               {
-                       impact[0] = local[0] - surface->plane->normal[0] * dist;
-                       impact[1] = local[1] - surface->plane->normal[1] * dist;
-                       impact[2] = local[2] - surface->plane->normal[2] * dist;
-               }
-
-               impacts = DotProduct (impact, surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3] - surface->texturemins[0];
-               impactt = DotProduct (impact, surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3] - surface->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 = light->rtlight.lightmap_light[0] * (1.0f / 128.0f);
-               green = light->rtlight.lightmap_light[1] * (1.0f / 128.0f);
-               blue = light->rtlight.lightmap_light[2] * (1.0f / 128.0f);
-               subtract = (int) (light->rtlight.lightmap_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);
-                                                       bl[1] += (green * k);
-                                                       bl[2] += (blue  * k);
-                                                       lit = true;
-                                               }
-                                       }
-                                       bl += 3;
-                               }
-                       }
-                       else // skip line
-                               bl += smax3;
-               }
-       }
-       return lit;
-}
-
-static int R_FloatAddDynamicLights (const matrix4x4_t *matrix, msurface_t *surface)
-{
-       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;
-       dlight_t *light;
-
-       lit = false;
-
-       smax = (surface->extents[0] >> 4) + 1;
-       tmax = (surface->extents[1] >> 4) + 1;
-       smax3 = smax * 3;
-
-       for (lnum = 0, light = r_dlight;lnum < r_numdlights;lnum++, light++)
-       {
-               if (!(surface->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
-                       continue;                                       // not lit by this light
-
-               Matrix4x4_Transform(matrix, light->origin, local);
-               dist = DotProduct (local, surface->plane->normal) - surface->plane->dist;
-
-               // for comparisons to minimum acceptable light
-               // compensate for LIGHTOFFSET
-               maxdist = (int) light->rtlight.lightmap_cullradius2 + LIGHTOFFSET;
-
-               dist2 = dist * dist;
-               dist2 += LIGHTOFFSET;
-               if (dist2 >= maxdist)
-                       continue;
 
-               if (surface->plane->type < 3)
-               {
-                       VectorCopy(local, impact);
-                       impact[surface->plane->type] -= dist;
-               }
-               else
-               {
-                       impact[0] = local[0] - surface->plane->normal[0] * dist;
-                       impact[1] = local[1] - surface->plane->normal[1] * dist;
-                       impact[2] = local[2] - surface->plane->normal[2] * dist;
-               }
-
-               impacts = DotProduct (impact, surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3] - surface->texturemins[0];
-               impactt = DotProduct (impact, surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3] - surface->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 = light->rtlight.lightmap_light[0];
-               green = light->rtlight.lightmap_light[1];
-               blue = light->rtlight.lightmap_light[2];
-               subtract = light->rtlight.lightmap_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;
-}
+// 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];
 
 /*
 ===============
@@ -235,170 +49,81 @@ 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 *surface)
+void R_BuildLightMap (const entity_render_t *ent, msurface_t *surface)
 {
-       if (!r_floatbuildlightmap.integer)
-       {
-               int smax, tmax, i, j, size, size3, maps, stride, l;
-               unsigned int *bl, scale;
-               qbyte *lightmap, *out, *stain;
-
-               // update cached lighting info
-               surface->cached_dlight = 0;
-
-               smax = (surface->extents[0]>>4)+1;
-               tmax = (surface->extents[1]>>4)+1;
-               size = smax*tmax;
-               size3 = size*3;
-               lightmap = surface->samples;
-
-       // 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
-               {
-       // clear to no light
-                       memset(bl, 0, size*3*sizeof(unsigned int));
-
-                       if (surface->dlightframe == r_framecount)
-                       {
-                               surface->cached_dlight = R_IntAddDynamicLights(&ent->inversematrix, surface);
-                               if (surface->cached_dlight)
-                                       c_light_polys++;
-                       }
+       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];
 
-       // add all the lightmaps
-                       if (lightmap)
-                       {
-                               bl = intblocklights;
-                               for (maps = 0;maps < MAXLIGHTMAPS && surface->styles[maps] != 255;maps++, lightmap += size3)
-                                       for (scale = d_lightstylevalue[surface->styles[maps]], i = 0;i < size3;i++)
-                                               bl[i] += lightmap[i] * scale;
-                       }
-               }
+       // update cached lighting info
+       surface->cached_dlight = 0;
 
-               stain = surface->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->lightmaptexturestride - smax) * 4;
-                       for (i = 0;i < tmax;i++, out += stride)
-                       {
-                               for (j = 0;j < smax;j++)
-                               {
-                                       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
-               {
-                       stride = (surface->lightmaptexturestride - smax) * 3;
-                       for (i = 0;i < tmax;i++, out += stride)
-                       {
-                               for (j = 0;j < smax;j++)
-                               {
-                                       l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
-                                       l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
-                                       l = (*bl++ * *stain++) >> 16;*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(surface->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
-               surface->cached_dlight = 0;
-
-               smax = (surface->extents[0]>>4)+1;
-               tmax = (surface->extents[1]>>4)+1;
-               size = smax*tmax;
-               size3 = size*3;
-               lightmap = surface->samples;
-
-       // set to full bright if no light data
-               bl = floatblocklights;
-               if (!ent->model->brushq1.lightdata)
-               {
-                       for (i = 0;i < size3;i++)
-                               bl[i] = 255*256;
-               }
-               else
-               {
-                       memset(bl, 0, size*3*sizeof(float));
-
-                       if (surface->dlightframe == r_framecount)
-                       {
-                               surface->cached_dlight = R_FloatAddDynamicLights(&ent->inversematrix, surface);
-                               if (surface->cached_dlight)
-                                       c_light_polys++;
-                       }
+// clear to no light
+               memset(bl, 0, size*3*sizeof(unsigned int));
 
-                       // add all the lightmaps
-                       if (lightmap)
-                       {
-                               bl = floatblocklights;
-                               for (maps = 0;maps < MAXLIGHTMAPS && surface->styles[maps] != 255;maps++, lightmap += size3)
-                                       for (scale = d_lightstylevalue[surface->styles[maps]], i = 0;i < size3;i++)
-                                               bl[i] += lightmap[i] * scale;
-                       }
+// add all the lightmaps
+               if (lightmap)
+               {
+                       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 = surface->stainsamples;
-               bl = floatblocklights;
-               out = templight;
-               // this scaling adjusts down 8 bits to account for the stainmap
-               // scaling, and remaps the 0.0-2.0 (2x overbright) to 0-256, it will
-               // be doubled during rendering to achieve 2x overbright
-               // (0 = 0.0, 128 = 1.0, 256 = 2.0)
-               scale = 1.0f / (1 << 16);
-               if (ent->model->brushq1.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 = (surface->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 = (surface->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(surface->lightmaptexture, templight);
        }
+
+       R_UpdateTexture(surface->lightmaptexture, templight);
 }
 
 void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
@@ -442,15 +167,15 @@ loc0:
                impact[2] = origin[2] - node->plane->normal[2] * ndist;
        }
 
-       for (surface = model->brush.data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
+       for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
        {
-               if (surface->stainsamples)
+               if (surface->lightmapinfo->stainsamples)
                {
-                       smax = (surface->extents[0] >> 4) + 1;
-                       tmax = (surface->extents[1] >> 4) + 1;
+                       smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
+                       tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
 
-                       impacts = DotProduct (impact, surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3] - surface->texturemins[0];
-                       impactt = DotProduct (impact, surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3] - surface->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;
@@ -462,7 +187,7 @@ loc0:
                        for (s = 0, i = impacts; s < smax; s++, i -= 16)
                                sdtable[s] = i * i + dist2;
 
-                       bl = surface->stainsamples;
+                       bl = surface->lightmapinfo->stainsamples;
                        smax3 = smax * 3;
                        stained = false;
 
@@ -530,7 +255,7 @@ void R_Stain (const vec3_t origin, float radius, int cr1, int cg1, int cb1, int
        entity_render_t *ent;
        model_t *model;
        vec3_t org;
-       if (r_refdef.worldmodel == NULL || !r_refdef.worldmodel->brush.data_nodes)
+       if (r_refdef.worldmodel == NULL || !r_refdef.worldmodel->brush.data_nodes || !r_refdef.worldmodel->brushq1.lightdata)
                return;
        fcolor[0] = cr1;
        fcolor[1] = cg1;
@@ -546,7 +271,7 @@ void R_Stain (const vec3_t origin, float radius, int cr1, int cg1, int cb1, int
        // 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] == '*')
                {
@@ -569,1730 +294,531 @@ void R_Stain (const vec3_t origin, float radius, int cr1, int cg1, int cb1, int
 =============================================================
 */
 
-static void RSurf_AddLightmapToVertexColors_Color4f(const int *lightmapoffsets, float *c, int numverts, const qbyte *samples, int size3, const qbyte *styles)
+static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
 {
        int i;
-       float scale;
-       const qbyte *lm;
-       if (styles[0] != 255)
+       float *v;
+       rmeshstate_t m;
+       const mportal_t *portal = (mportal_t *)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)
+       {
+               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);
+}
+
+// LordHavoc: this is just a nice debugging tool, very slow
+static void R_DrawPortals(void)
+{
+       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++)
        {
-               for (i = 0;i < numverts;i++, c += 4)
+               if (r_worldleafvisible[leafnum])
                {
-                       lm = samples + lightmapoffsets[i];
-                       scale = d_lightstylevalue[styles[0]] * (1.0f / 32768.0f);
-                       VectorMA(c, scale, lm, c);
-                       if (styles[1] != 255)
+                       //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)
                        {
-                               lm += size3;
-                               scale = d_lightstylevalue[styles[1]] * (1.0f / 32768.0f);
-                               VectorMA(c, scale, lm, c);
-                               if (styles[2] != 255)
+                               if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
+                               if (!R_CullBox(portal->mins, portal->maxs))
                                {
-                                       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);
-                                       }
+                                       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_FogColors_Vertex3f_Color4f(const float *v, float *c, float colorscale, int numverts, const float *modelorg)
+static void R_DrawCollisionBrush(colbrushf_t *brush)
 {
        int i;
-       float diff[3], f;
-       if (fogenabled)
-       {
-               for (i = 0;i < numverts;i++, v += 3, c += 4)
-               {
-                       VectorSubtract(v, modelorg, diff);
-                       f = colorscale * (1 - exp(fogdensity/DotProduct(diff, diff)));
-                       VectorScale(c, f, c);
-               }
-       }
-       else if (colorscale != 1)
-               for (i = 0;i < numverts;i++, c += 4)
-                       VectorScale(c, colorscale, c);
+       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_FoggedColors_Vertex3f_Color4f(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
+static void R_DrawCollisionSurface(entity_render_t *ent, msurface_t *surface)
 {
        int i;
-       float diff[3], f;
-       r *= colorscale;
-       g *= colorscale;
-       b *= colorscale;
-       if (fogenabled)
+       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);
+}
+
+void R_WorldVisibility(void)
+{
+       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++, v += 3, 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++)
                {
-                       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;
+                       // 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))
+                       {
+                               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
        {
-               for (i = 0;i < numverts;i++, c += 4)
+               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[0] = r;
-                       c[1] = g;
-                       c[2] = b;
-                       c[3] = a;
+                       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;
                }
        }
-}
 
-static void RSurf_FogPassColors_Vertex3f_Color4f(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
-{
-       int i;
-       float diff[3], f;
-       r *= colorscale;
-       g *= colorscale;
-       b *= colorscale;
-       for (i = 0;i < numverts;i++, v += 3, c += 4)
-       {
-               VectorSubtract(v, modelorg, diff);
-               f = exp(fogdensity/DotProduct(diff, diff));
-               c[0] = r;
-               c[1] = g;
-               c[2] = b;
-               c[3] = a * f;
-       }
+       if (r_drawportals.integer)
+               R_DrawPortals();
 }
 
-static int RSurf_LightSeparate_Vertex3f_Color4f(const matrix4x4_t *matrix, const int *dlightbits, int numverts, const float *vert, float *color, float scale)
+void R_Q1BSP_DrawSky(entity_render_t *ent)
 {
-       float f;
-       const float *v;
-       float *c;
-       int i, l, lit = false;
-       const dlight_t *light;
-       vec3_t lightorigin;
-       for (l = 0;l < r_numdlights;l++)
-       {
-               if (dlightbits[l >> 5] & (1 << (l & 31)))
-               {
-                       light = &r_dlight[l];
-                       Matrix4x4_Transform(matrix, light->origin, lightorigin);
-                       for (i = 0, v = vert, c = color;i < numverts;i++, v += 3, c += 4)
-                       {
-                               f = VectorDistance2(v, lightorigin) + LIGHTOFFSET;
-                               if (f < light->rtlight.lightmap_cullradius2)
-                               {
-                                       f = ((1.0f / f) - light->rtlight.lightmap_subtract) * scale;
-                                       VectorMA(c, f, light->rtlight.lightmap_light, c);
-                                       lit = true;
-                               }
-                       }
-               }
-       }
-       return lit;
+       if (ent->model == NULL)
+               return;
+       if (r_drawcollisionbrushes.integer < 2)
+               R_DrawSurfaces(ent, true);
 }
 
-static void RSurfShader_Transparent_Callback(const void *calldata1, int calldata2)
-{
-       const entity_render_t *ent = calldata1;
-       const msurface_t *surface = ent->model->brush.data_surfaces + calldata2;
-       rmeshstate_t m;
-       float currentalpha;
-       float base, colorscale;
-       vec3_t modelorg;
-       texture_t *texture;
-       float args[4] = {0.05f,0,0,0.04f};
-       int rendertype, turb, fullbright;
-
-       R_Mesh_Matrix(&ent->matrix);
-       Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
-
-       texture = surface->texture;
-       if (texture->animated)
-               texture = texture->anim_frames[ent->frame != 0][(texture->anim_total[ent->frame != 0] >= 2) ? ((int) (r_refdef.time * 5.0f) % texture->anim_total[ent->frame != 0]) : 0];
-       currentalpha = ent->alpha;
-       if (texture->flags & SURF_WATERALPHA)
-               currentalpha *= r_wateralpha.value;
-
-       GL_DepthTest(!(ent->effects & EF_NODEPTHTEST));
-       if (ent->effects & EF_ADDITIVE)
-       {
-               rendertype = SURFRENDER_ADD;
-               GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
-               GL_DepthMask(false);
-       }
-       else if (currentalpha < 1 || texture->skin.fog != NULL)
-       {
-               rendertype = SURFRENDER_ALPHA;
-               GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-               GL_DepthMask(false);
-       }
-       else
-       {
-               rendertype = SURFRENDER_OPAQUE;
-               GL_BlendFunc(GL_ONE, GL_ZERO);
-               GL_DepthMask(!(ent->effects & EF_NODEPTHTEST));
-       }
-
-       turb = (texture->flags & SURF_DRAWTURB) && r_waterscroll.value;
-       fullbright = !(ent->flags & RENDER_LIGHT) || (texture->flags & SURF_DRAWFULLBRIGHT) || !surface->samples;
-       base = fullbright ? 2.0f : r_ambient.value * (1.0f / 64.0f);
-       if (texture->flags & SURF_DRAWTURB)
-               base *= 0.5f;
-       if ((texture->flags & SURF_DRAWTURB) && gl_textureshader && r_watershader.value && !fogenabled && fullbright && ent->colormod[0] == 1 && ent->colormod[1] == 1 && ent->colormod[2] == 1)
-       {
-               // NVIDIA Geforce3 distortion texture shader on water
-               GL_Color(1, 1, 1, currentalpha);
-               memset(&m, 0, sizeof(m));
-               m.pointer_vertex = surface->mesh.data_vertex3f;
-               m.tex[0] = R_GetTexture(mod_shared_distorttexture[(int)(r_refdef.time * 16)&63]);
-               m.tex[1] = R_GetTexture(texture->skin.base);
-               m.texcombinergb[0] = GL_REPLACE;
-               m.texcombinergb[1] = GL_REPLACE;
-               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-               m.pointer_texcoord[1] = surface->mesh.data_texcoordtexture2f;
-               Matrix4x4_CreateFromQuakeEntity(&m.texmatrix[0], 0, 0, 0, 0, 0, 0, r_watershader.value);
-               Matrix4x4_CreateTranslate(&m.texmatrix[1], sin(r_refdef.time) * 0.025 * r_waterscroll.value, sin(r_refdef.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
-               R_Mesh_State(&m);
-
-               GL_ActiveTexture(0);
-               qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
-               GL_ActiveTexture(1);
-               qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_OFFSET_TEXTURE_2D_NV);
-               qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB);
-               qglTexEnvfv(GL_TEXTURE_SHADER_NV, GL_OFFSET_TEXTURE_MATRIX_NV, &args[0]);
-               qglEnable(GL_TEXTURE_SHADER_NV);
-
-               GL_LockArrays(0, surface->mesh.num_vertices);
-               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-               GL_LockArrays(0, 0);
-
-               qglDisable(GL_TEXTURE_SHADER_NV);
-               qglTexEnvi(GL_TEXTURE_SHADER_NV, GL_SHADER_OPERATION_NV, GL_TEXTURE_2D);
-               GL_ActiveTexture(0);
-       }
-       else
-       {
-               memset(&m, 0, sizeof(m));
-               m.pointer_vertex = surface->mesh.data_vertex3f;
-               m.pointer_color = varray_color4f;
-               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-               m.tex[0] = R_GetTexture(texture->skin.base);
-               if (turb)
-               {
-                       // scrolling in texture matrix
-                       Matrix4x4_CreateTranslate(&m.texmatrix[0], sin(r_refdef.time) * 0.025 * r_waterscroll.value, sin(r_refdef.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
-               }
-               colorscale = 1;
-               if (gl_combine.integer)
-               {
-                       m.texrgbscale[0] = 4;
-                       colorscale *= 0.25f;
-               }
-               R_FillColors(varray_color4f, surface->mesh.num_vertices, base * ent->colormod[0], base * ent->colormod[1], base * ent->colormod[2], currentalpha);
-               if (!fullbright)
-               {
-                       if (surface->dlightframe == r_framecount)
-                               RSurf_LightSeparate_Vertex3f_Color4f(&ent->inversematrix, surface->dlightbits, surface->mesh.num_vertices, surface->mesh.data_vertex3f, varray_color4f, 1);
-                       if (surface->samples)
-                               RSurf_AddLightmapToVertexColors_Color4f(surface->mesh.data_lightmapoffsets, varray_color4f,surface->mesh.num_vertices, surface->samples, ((surface->extents[0]>>4)+1)*((surface->extents[1]>>4)+1)*3, surface->styles);
-               }
-               RSurf_FogColors_Vertex3f_Color4f(surface->mesh.data_vertex3f, varray_color4f, colorscale, surface->mesh.num_vertices, modelorg);
-               R_Mesh_State(&m);
-               GL_LockArrays(0, surface->mesh.num_vertices);
-               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-               GL_LockArrays(0, 0);
-               if (texture->skin.glow)
-               {
-                       memset(&m, 0, sizeof(m));
-                       GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
-                       GL_DepthMask(false);
-                       m.pointer_color = varray_color4f;
-                       m.tex[0] = R_GetTexture(texture->skin.glow);
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       if (m.tex[0])
-                       {
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               if (turb)
-                               {
-                                       // scrolling in texture matrix
-                                       Matrix4x4_CreateTranslate(&m.texmatrix[0], sin(r_refdef.time) * 0.025 * r_waterscroll.value, sin(r_refdef.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
-                               }
-                       }
-                       R_Mesh_State(&m);
-                       RSurf_FoggedColors_Vertex3f_Color4f(surface->mesh.data_vertex3f, varray_color4f, 1, 1, 1, currentalpha, 1, surface->mesh.num_vertices, modelorg);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-               if (fogenabled && rendertype != SURFRENDER_ADD)
-               {
-                       memset(&m, 0, sizeof(m));
-                       GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
-                       GL_DepthMask(false);
-                       m.pointer_color = varray_color4f;
-                       m.tex[0] = R_GetTexture(texture->skin.fog);
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       if (m.tex[0])
-                       {
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               if (turb)
-                               {
-                                       // scrolling in texture matrix
-                                       Matrix4x4_CreateTranslate(&m.texmatrix[0], sin(r_refdef.time) * 0.025 * r_waterscroll.value, sin(r_refdef.time * 0.8f) * 0.025 * r_waterscroll.value, 0);
-                               }
-                       }
-                       R_Mesh_State(&m);
-                       RSurf_FogPassColors_Vertex3f_Color4f(surface->mesh.data_vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], currentalpha, 1, surface->mesh.num_vertices, modelorg);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-       }
-}
-
-void R_UpdateTextureInfo(entity_render_t *ent)
-{
-       int i, texframe, alttextures;
-       texture_t *t;
-
-       if (!ent->model)
-               return;
-
-       alttextures = ent->frame != 0;
-       texframe = (int)(r_refdef.time * 5.0f);
-       for (i = 0;i < ent->model->brush.num_textures;i++)
-       {
-               t = ent->model->brush.data_textures + i;
-               t->currentalpha = ent->alpha;
-               if (t->flags & SURF_WATERALPHA)
-                       t->currentalpha *= r_wateralpha.value;
-               if (ent->effects & EF_ADDITIVE)
-                       t->rendertype = SURFRENDER_ADD;
-               else if (t->currentalpha < 1 || t->skin.fog != NULL)
-                       t->rendertype = SURFRENDER_ALPHA;
-               else
-                       t->rendertype = SURFRENDER_OPAQUE;
-               // we don't need to set currentframe if t->animated is false because
-               // it was already set up by the texture loader for non-animating
-               if (t->animated)
-                       t->currentframe = t->anim_frames[alttextures][(t->anim_total[alttextures] >= 2) ? (texframe % t->anim_total[alttextures]) : 0];
-       }
-}
-
-void R_DrawSurfaceList(entity_render_t *ent, texture_t *texture, int texturenumsurfaces, msurface_t **texturesurfacelist)
-{
-       int texturesurfaceindex;
-       vec3_t tempcenter, center, modelorg;
-       msurface_t *surface;
-       rmeshstate_t m;
-       Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
-       if (gl_lightmaps.integer)
-       {
-               GL_BlendFunc(GL_ONE, GL_ZERO);
-               GL_DepthMask(true);
-               GL_DepthTest(true);
-               GL_Color(1, 1, 1, 1);
-               memset(&m, 0, sizeof(m));
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.tex[0] = R_GetTexture(surface->lightmaptexture);
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-       }
-       else if (texture->rendertype != SURFRENDER_OPAQUE)
-       {
-               // transparent vertex shaded from lightmap
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
-                       tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
-                       tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
-                       Matrix4x4_Transform(&ent->matrix, tempcenter, center);
-                       R_MeshQueue_AddTransparent(ent->effects & EF_NODEPTHTEST ? r_vieworigin : center, RSurfShader_Transparent_Callback, ent, surface - ent->model->brush.data_surfaces);
-               }
-       }
-       else if (texture->flags & SURF_LIGHTMAP)
-       {
-               qboolean dolightmap = (ent->flags & RENDER_LIGHT);
-               qboolean dobase = true;
-               qboolean doambient = r_ambient.value > 0;
-               qboolean dodetail = r_detailtextures.integer != 0;
-               qboolean doglow = texture->skin.glow != NULL;
-               qboolean dofog = fogenabled;
-               // multitexture cases
-               if (r_textureunits.integer >= 2 && gl_combine.integer && dobase && dolightmap)
-               {
-                       dobase = false;
-                       dolightmap = false;
-                       GL_BlendFunc(GL_ONE, GL_ZERO);
-                       GL_DepthMask(true);
-                       GL_DepthTest(true);
-                       GL_Color(1, 1, 1, 1);
-                       GL_Color(r_lightmapintensity * ent->colormod[0], r_lightmapintensity * ent->colormod[1], r_lightmapintensity * ent->colormod[2], 1);
-                       memset(&m, 0, sizeof(m));
-                       m.tex[0] = R_GetTexture(texture->skin.base);
-                       m.texrgbscale[1] = 2;
-                       if (r_textureunits.integer >= 3 && !doambient && dodetail)
-                       {
-                               m.tex[2] = R_GetTexture(texture->skin.detail);
-                               m.texrgbscale[2] = 2;
-                               dodetail = false;
-                               if (r_textureunits.integer >= 3 && texture->skin.glow)
-                               {
-                                       m.tex[3] = R_GetTexture(texture->skin.glow);
-                                       m.texcombinergb[3] = GL_ADD;
-                                       doglow = false;
-                                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                                       {
-                                               surface = texturesurfacelist[texturesurfaceindex];
-                                               m.tex[1] = R_GetTexture(surface->lightmaptexture);
-                                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                                               m.pointer_texcoord[1] = surface->mesh.data_texcoordlightmap2f;
-                                               m.pointer_texcoord[2] = surface->mesh.data_texcoorddetail2f;
-                                               m.pointer_texcoord[3] = surface->mesh.data_texcoordtexture2f;
-                                               R_Mesh_State(&m);
-                                               GL_LockArrays(0, surface->mesh.num_vertices);
-                                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                                               GL_LockArrays(0, 0);
-                                       }
-                               }
-                               else
-                               {
-                                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                                       {
-                                               surface = texturesurfacelist[texturesurfaceindex];
-                                               m.tex[1] = R_GetTexture(surface->lightmaptexture);
-                                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                                               m.pointer_texcoord[1] = surface->mesh.data_texcoordlightmap2f;
-                                               m.pointer_texcoord[2] = surface->mesh.data_texcoorddetail2f;
-                                               R_Mesh_State(&m);
-                                               GL_LockArrays(0, surface->mesh.num_vertices);
-                                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                                               GL_LockArrays(0, 0);
-                                       }
-                               }
-                       }
-                       else if (r_textureunits.integer >= 3 && !doambient && !dodetail && doglow)
-                       {
-                               m.tex[2] = R_GetTexture(texture->skin.glow);
-                               m.texcombinergb[2] = GL_ADD;
-                               doglow = false;
-                               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                               {
-                                       surface = texturesurfacelist[texturesurfaceindex];
-                                       m.tex[1] = R_GetTexture(surface->lightmaptexture);
-                                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                                       m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                                       m.pointer_texcoord[1] = surface->mesh.data_texcoordlightmap2f;
-                                       m.pointer_texcoord[2] = surface->mesh.data_texcoordtexture2f;
-                                       R_Mesh_State(&m);
-                                       GL_LockArrays(0, surface->mesh.num_vertices);
-                                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                                       GL_LockArrays(0, 0);
-                               }
-                       }
-               }
-               // anything not handled above
-               if (dobase)
-               {
-                       GL_BlendFunc(GL_ONE, GL_ZERO);
-                       GL_DepthMask(true);
-                       GL_DepthTest(true);
-                       GL_Color(1, 1, 1, 1);
-                       if (ent->flags & RENDER_LIGHT)
-                               GL_Color(r_lightmapintensity * ent->colormod[0], r_lightmapintensity * ent->colormod[1], r_lightmapintensity * ent->colormod[2], 1);
-                       else
-                               GL_Color(ent->colormod[0], ent->colormod[1], ent->colormod[2], 1);
-                       memset(&m, 0, sizeof(m));
-                       m.tex[0] = R_GetTexture(texture->skin.base);
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                       {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               R_Mesh_State(&m);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
-                       }
-               }
-               GL_DepthMask(false);
-               if (dolightmap)
-               {
-                       GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
-                       GL_DepthMask(false);
-                       GL_DepthTest(true);
-                       GL_Color(1, 1, 1, 1);
-                       memset(&m, 0, sizeof(m));
-                       m.tex[0] = R_GetTexture(texture->skin.base);
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                       {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               m.tex[0] = R_GetTexture(surface->lightmaptexture);
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
-                               R_Mesh_State(&m);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
-                       }
-               }
-               if (doambient)
-               {
-                       GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
-                       GL_DepthMask(false);
-                       GL_DepthTest(true);
-                       memset(&m, 0, sizeof(m));
-                       GL_Color(r_ambient.value * (1.0f / 128.0f) * ent->colormod[0], r_ambient.value * (1.0f / 128.0f) * ent->colormod[1], r_ambient.value * (1.0f / 128.0f) * ent->colormod[2], 1);
-                       m.tex[0] = R_GetTexture(texture->skin.base);
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                       {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               R_Mesh_State(&m);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
-                       }
-               }
-               if (dodetail)
-               {
-                       GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
-                       GL_DepthMask(false);
-                       GL_DepthTest(true);
-                       GL_Color(1, 1, 1, 1);
-                       memset(&m, 0, sizeof(m));
-                       m.tex[0] = R_GetTexture(texture->skin.detail);
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                       {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               R_Mesh_State(&m);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
-                       }
-               }
-               if (doglow)
-               {
-                       GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
-                       GL_DepthMask(false);
-                       GL_DepthTest(true);
-                       GL_Color(1, 1, 1, 1);
-                       memset(&m, 0, sizeof(m));
-                       m.tex[0] = R_GetTexture(texture->skin.glow);
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                       {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               R_Mesh_State(&m);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
-                       }
-               }
-               if (dofog)
-               {
-                       GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-                       GL_DepthMask(false);
-                       GL_DepthTest(true);
-                       memset(&m, 0, sizeof(m));
-                       m.pointer_color = varray_color4f;
-                       m.tex[0] = R_GetTexture(texture->skin.glow);
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                       {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               if (m.tex[0])
-                                       m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               R_Mesh_State(&m);
-                               RSurf_FogPassColors_Vertex3f_Color4f(surface->mesh.data_vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], 1, 1, surface->mesh.num_vertices, modelorg);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
-                       }
-               }
-       }
-       else if (texture->flags & SURF_DRAWTURB)
-       {
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       RSurfShader_Transparent_Callback(ent, surface - ent->model->brush.data_surfaces);
-               }
-       }
-       else if (texture->flags & SURF_DRAWSKY)
-       {
-               if (skyrendernow)
-               {
-                       skyrendernow = false;
-                       if (skyrendermasked)
-                               R_Sky();
-               }
-               // LordHavoc: HalfLife maps have freaky skypolys...
-               if (!ent->model->brush.ishlbsp)
-               {
-                       R_Mesh_Matrix(&ent->matrix);
-                       GL_Color(fogcolor[0], fogcolor[1], fogcolor[2], 1);
-                       if (skyrendermasked)
-                       {
-                               // depth-only (masking)
-                               GL_ColorMask(0,0,0,0);
-                               // just to make sure that braindead drivers don't draw anything
-                               // despite that colormask...
-                               GL_BlendFunc(GL_ZERO, GL_ONE);
-                       }
-                       else
-                       {
-                               // fog sky
-                               GL_BlendFunc(GL_ONE, GL_ZERO);
-                       }
-                       GL_DepthMask(true);
-                       GL_DepthTest(true);
-                       memset(&m, 0, sizeof(m));
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-                       {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               R_Mesh_State(&m);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
-                       }
-                       GL_ColorMask(r_refdef.colormask[0], r_refdef.colormask[1], r_refdef.colormask[2], 1);
-               }
-       }
-}
-
-void R_DrawSurfaces(entity_render_t *ent, qboolean skysurfaces)
-{
-       int i, j, f, flagsmask;
-       msurface_t *surface, **surfacechain;
-       texture_t *t, *texture;
-       model_t *model = ent->model;
-       vec3_t modelorg;
-       const int maxsurfacelist = 1024;
-       int numsurfacelist = 0;
-       msurface_t *surfacelist[1024];
-       if (model == NULL)
-               return;
-       R_Mesh_Matrix(&ent->matrix);
-       Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
-
-       if (ent != r_refdef.worldentity)
-       {
-               // because bmodels can be reused, we have to clear dlightframe every time
-               surface = model->brush.data_surfaces + model->firstmodelsurface;
-               for (i = 0;i < model->nummodelsurfaces;i++, surface++)
-                       surface->dlightframe = -1;
-       }
-
-       // update light styles
-       if (!skysurfaces)
-       {
-               if (r_dynamic.integer && !r_rtdlight)
-                       R_MarkLights(ent);
-               for (i = 0;i < model->brushq1.light_styles;i++)
-               {
-                       if (model->brushq1.light_stylevalue[i] != d_lightstylevalue[model->brushq1.light_style[i]])
-                       {
-                               model->brushq1.light_stylevalue[i] = d_lightstylevalue[model->brushq1.light_style[i]];
-                               if ((surfacechain = model->brushq1.light_styleupdatechains[i]))
-                                       for (;(surface = *surfacechain);surfacechain++)
-                                               surface->cached_dlight = true;
-                       }
-               }
-       }
-
-       R_UpdateTextureInfo(ent);
-       flagsmask = skysurfaces ? SURF_DRAWSKY : (SURF_DRAWTURB | SURF_LIGHTMAP);
-       f = 0;
-       t = NULL;
-       numsurfacelist = 0;
-       for (i = 0, j = model->firstmodelsurface;i < model->nummodelsurfaces;i++, j++)
-       {
-               if (ent != r_refdef.worldentity || r_worldsurfacevisible[j])
-               {
-                       surface = model->brush.data_surfaces + j;
-                       if (t != surface->texture)
-                       {
-                               if (numsurfacelist)
-                               {
-                                       R_DrawSurfaceList(ent, texture, numsurfacelist, surfacelist);
-                                       numsurfacelist = 0;
-                               }
-                               t = surface->texture;
-                               f = t->flags & flagsmask;
-                               texture = t->currentframe;
-                       }
-                       if (f)
-                       {
-                               // add face to draw list and update lightmap if necessary
-                               c_faces++;
-                               if (surface->cached_dlight && surface->lightmaptexture != NULL)
-                                       R_BuildLightMap(ent, surface);
-                               surfacelist[numsurfacelist++] = surface;
-                               if (numsurfacelist >= maxsurfacelist)
-                               {
-                                       R_DrawSurfaceList(ent, texture, numsurfacelist, surfacelist);
-                                       numsurfacelist = 0;
-                               }
-                       }
-               }
-       }
-       if (numsurfacelist)
-               R_DrawSurfaceList(ent, texture, numsurfacelist, surfacelist);
-}
-
-static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
-{
-       int i;
-       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)
-       {
-               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(portal->numpoints, portal->numpoints - 2, polygonelements);
-       GL_LockArrays(0, 0);
-}
-
-// LordHavoc: this is just a nice debugging tool, very slow
-static void R_DrawPortals(void)
-{
-       int i, portalnum;
-       mportal_t *portal;
-       float center[3], f;
-       model_t *model = r_refdef.worldmodel;
-       if (model == NULL)
-               return;
-       for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
-       {
-               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);
-               }
-       }
-}
-
-void R_WorldVisibility(void)
-{
-       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->brushq1.PointInLeaf ? model->brushq1.PointInLeaf(model, r_vieworigin) : NULL;
-
-       // clear the visible surface flags array
-       memset(r_worldsurfacevisible, 0, model->brush.num_surfaces);
-
-       // 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)
-       {
-               // 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++)
-               {
-                       // 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))
-                       {
-                               c_leafs++;
-                               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];
-               qbyte leafvisited[32768];
-               // 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;
-               memset(leafvisited, 0, model->brush.num_leafs);
-               while (leafstackpos)
-               {
-                       c_leafs++;
-                       leaf = leafstack[--leafstackpos];
-                       leafvisited[leaf - model->brush.data_leafs] = 1;
-                       // 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) && !leafvisited[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)
+void R_Q1BSP_Draw(entity_render_t *ent)
 {
        if (ent->model == NULL)
                return;
-       R_DrawSurfaces(ent, true);
-}
-
-void R_Q1BSP_Draw(entity_render_t *ent)
-{
-       if (ent->model == NULL)
-               return;
-       c_bmodels++;
-       R_DrawSurfaces(ent, false);
-}
-
-void R_Q1BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outclusterlist, qbyte *outclusterpvs, int *outnumclusterspointer, int *outsurfacelist, qbyte *outsurfacepvs, int *outnumsurfacespointer)
-{
-       model_t *model = ent->model;
-       vec3_t lightmins, lightmaxs;
-       int t, leafindex, leafsurfaceindex, surfaceindex, triangleindex, outnumclusters = 0, outnumsurfaces = 0;
-       const int *e;
-       const float *v[3];
-       msurface_t *surface;
-       mleaf_t *leaf;
-       const qbyte *pvs;
-       lightmins[0] = relativelightorigin[0] - lightradius;
-       lightmins[1] = relativelightorigin[1] - lightradius;
-       lightmins[2] = relativelightorigin[2] - lightradius;
-       lightmaxs[0] = relativelightorigin[0] + lightradius;
-       lightmaxs[1] = relativelightorigin[1] + lightradius;
-       lightmaxs[2] = relativelightorigin[2] + lightradius;
-       *outnumclusterspointer = 0;
-       *outnumsurfacespointer = 0;
-       memset(outclusterpvs, 0, model->brush.num_pvsclusterbytes);
-       memset(outsurfacepvs, 0, (model->nummodelsurfaces + 7) >> 3);
-       if (model == NULL)
-       {
-               VectorCopy(lightmins, outmins);
-               VectorCopy(lightmaxs, outmaxs);
-               return;
-       }
-       VectorCopy(relativelightorigin, outmins);
-       VectorCopy(relativelightorigin, outmaxs);
-       if (model->brush.GetPVS)
-               pvs = model->brush.GetPVS(model, relativelightorigin);
-       else
-               pvs = NULL;
-       // FIXME: use BSP recursion as lights are often small
-       for (leafindex = 0, leaf = model->brush.data_leafs;leafindex < model->brush.num_leafs;leafindex++, leaf++)
-       {
-               if (BoxesOverlap(lightmins, lightmaxs, leaf->mins, leaf->maxs) && (pvs == NULL || CHECKPVSBIT(pvs, leaf->clusterindex)))
-               {
-                       outmins[0] = min(outmins[0], leaf->mins[0]);
-                       outmins[1] = min(outmins[1], leaf->mins[1]);
-                       outmins[2] = min(outmins[2], leaf->mins[2]);
-                       outmaxs[0] = max(outmaxs[0], leaf->maxs[0]);
-                       outmaxs[1] = max(outmaxs[1], leaf->maxs[1]);
-                       outmaxs[2] = max(outmaxs[2], leaf->maxs[2]);
-                       if (outclusterpvs)
-                       {
-                               if (!CHECKPVSBIT(outclusterpvs, leaf->clusterindex))
-                               {
-                                       SETPVSBIT(outclusterpvs, leaf->clusterindex);
-                                       outclusterlist[outnumclusters++] = leaf->clusterindex;
-                               }
-                       }
-                       if (outsurfacepvs)
-                       {
-                               for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
-                               {
-                                       surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
-                                       if (!CHECKPVSBIT(outsurfacepvs, surfaceindex))
-                                       {
-                                               surface = model->brush.data_surfaces + surfaceindex;
-                                               if (BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs) && (surface->texture->flags & SURF_LIGHTMAP) && !surface->texture->skin.fog)
-                                               {
-                                                       for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->mesh.num_triangles;triangleindex++, t++, e += 3)
-                                                       {
-                                                               v[0] = model->brush.shadowmesh->vertex3f + e[0] * 3;
-                                                               v[1] = model->brush.shadowmesh->vertex3f + e[1] * 3;
-                                                               v[2] = model->brush.shadowmesh->vertex3f + e[2] * 3;
-                                                               if (PointInfrontOfTriangle(relativelightorigin, 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])))
-                                                               {
-                                                                       SETPVSBIT(outsurfacepvs, surfaceindex);
-                                                                       outsurfacelist[outnumsurfaces++] = surfaceindex;
-                                                                       break;
-                                                               }
-                                                       }
-                                               }
-                                       }
-                               }
-                       }
-               }
-       }
-
-       // limit combined leaf box to light boundaries
-       outmins[0] = max(outmins[0], lightmins[0]);
-       outmins[1] = max(outmins[1], lightmins[1]);
-       outmins[2] = max(outmins[2], lightmins[2]);
-       outmaxs[0] = min(outmaxs[0], lightmaxs[0]);
-       outmaxs[1] = min(outmaxs[1], lightmaxs[1]);
-       outmaxs[2] = min(outmaxs[2], lightmaxs[2]);
-
-       *outnumclusterspointer = outnumclusters;
-       *outnumsurfacespointer = outnumsurfaces;
-}
-
-void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist)
-{
-       model_t *model = ent->model;
-       vec3_t lightmins, lightmaxs;
-       msurface_t *surface;
-       int surfacelistindex;
-       if (r_drawcollisionbrushes.integer < 2)
-       {
-               lightmins[0] = relativelightorigin[0] - lightradius;
-               lightmins[1] = relativelightorigin[1] - lightradius;
-               lightmins[2] = relativelightorigin[2] - lightradius;
-               lightmaxs[0] = relativelightorigin[0] + lightradius;
-               lightmaxs[1] = relativelightorigin[1] + lightradius;
-               lightmaxs[2] = relativelightorigin[2] + lightradius;
-               R_Mesh_Matrix(&ent->matrix);
-               R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
-               for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
-               {
-                       surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
-                       R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->mesh.num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
-               }
-               R_Shadow_VolumeFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, model->brush.shadowmesh->neighbor3i, relativelightorigin, lightradius + model->radius + r_shadow_projectdistance.value, numshadowmark, shadowmarklist);
-       }
-}
-
-void R_Q1BSP_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltolight, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz, rtexture_t *lightcubemap, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int numsurfaces, const int *surfacelist)
-{
-       model_t *model = ent->model;
-       vec3_t lightmins, lightmaxs, modelorg;
-       msurface_t *surface;
-       texture_t *t;
-       int surfacelistindex;
-       if (r_drawcollisionbrushes.integer < 2)
-       {
-               lightmins[0] = relativelightorigin[0] - lightradius;
-               lightmins[1] = relativelightorigin[1] - lightradius;
-               lightmins[2] = relativelightorigin[2] - lightradius;
-               lightmaxs[0] = relativelightorigin[0] + lightradius;
-               lightmaxs[1] = relativelightorigin[1] + lightradius;
-               lightmaxs[2] = relativelightorigin[2] + lightradius;
-               R_Mesh_Matrix(&ent->matrix);
-               Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
-               R_UpdateTextureInfo(ent);
-               for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
-               {
-                       surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
-                       if (r_shadow_compilingrtlight)
-                       {
-                               // if compiling an rtlight, capture the mesh
-                               t = surface->texture;
-                               if (t->flags & SURF_LIGHTMAP && t->skin.fog == NULL)
-                                       Mod_ShadowMesh_AddMesh(r_shadow_mempool, r_shadow_compilingrtlight->static_meshchain_light, surface->texture->skin.base, surface->texture->skin.gloss, surface->texture->skin.nmap, surface->mesh.data_vertex3f, surface->mesh.data_svector3f, surface->mesh.data_tvector3f, surface->mesh.data_normal3f, surface->mesh.data_texcoordtexture2f, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       }
-                       else if (ent != r_refdef.worldentity || r_worldsurfacevisible[surfacelist[surfacelistindex]])
-                       {
-                               t = surface->texture->currentframe;
-                               // FIXME: transparent surfaces need to be lit later
-                               if (t->flags & SURF_LIGHTMAP && t->rendertype == SURFRENDER_OPAQUE)
-                                       R_Shadow_RenderLighting(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i, surface->mesh.data_vertex3f, surface->mesh.data_svector3f, surface->mesh.data_tvector3f, surface->mesh.data_normal3f, surface->mesh.data_texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightcolor, matrix_modeltolight, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.base, t->skin.nmap, t->skin.gloss, lightcubemap, ambientscale, diffusescale, specularscale);
-                       }
-               }
-       }
-}
-
-void R_DrawCollisionBrush(colbrushf_t *brush)
-{
-       int i;
-       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(brush->numpoints, brush->numtriangles, brush->elements);
-       GL_LockArrays(0, 0);
-}
-
-void R_Q3BSP_DrawCollisionSurface(entity_render_t *ent, msurface_t *surface)
-{
-       int i;
-       rmeshstate_t m;
-       if (!surface->mesh.num_collisiontriangles)
-               return;
-       memset(&m, 0, sizeof(m));
-       m.pointer_vertex = surface->mesh.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->mesh.num_collisionvertices);
-       R_Mesh_Draw(surface->mesh.num_collisionvertices, surface->mesh.num_collisiontriangles, surface->mesh.data_collisionelement3i);
-       GL_LockArrays(0, 0);
-}
-
-void R_Q3BSP_DrawFace_TransparentCallback(const void *voident, int surfacenumber)
-{
-       const entity_render_t *ent = voident;
-       msurface_t *surface = ent->model->brush.data_surfaces + surfacenumber;
-       rmeshstate_t m;
-       R_Mesh_Matrix(&ent->matrix);
-       memset(&m, 0, sizeof(m));
-       if ((ent->effects & EF_ADDITIVE) || (surface->texture->textureflags & Q3TEXTUREFLAG_ADDITIVE))
-               GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
-       else
-               GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-       GL_DepthMask(false);
-       GL_DepthTest(!(ent->effects & EF_NODEPTHTEST));
-       m.tex[0] = R_GetTexture(surface->texture->skin.base);
-       m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-       // LordHavoc: quake3 was not able to do this; lit transparent surfaces
-       if (gl_combine.integer)
-       {
-               m.texrgbscale[0] = 2;
-               if (r_textureunits.integer >= 2)
-               {
-                       m.tex[1] = R_GetTexture(surface->lightmaptexture);
-                       m.pointer_texcoord[1] = surface->mesh.data_texcoordlightmap2f;
-                       GL_Color(ent->colormod[0], ent->colormod[1], ent->colormod[2], ent->alpha);
-               }
-               else
-               {
-                       if (ent->colormod[0] == 1 && ent->colormod[1] == 1 && ent->colormod[2] == 1 && ent->alpha == 1)
-                               m.pointer_color = surface->mesh.data_lightmapcolor4f;
-                       else
-                       {
-                               int i;
-                               for (i = 0;i < surface->mesh.num_vertices;i++)
-                               {
-                                       varray_color4f[i*4+0] = surface->mesh.data_lightmapcolor4f[i*4+0] * ent->colormod[0];
-                                       varray_color4f[i*4+1] = surface->mesh.data_lightmapcolor4f[i*4+1] * ent->colormod[1];
-                                       varray_color4f[i*4+2] = surface->mesh.data_lightmapcolor4f[i*4+2] * ent->colormod[2];
-                                       varray_color4f[i*4+3] = surface->mesh.data_lightmapcolor4f[i*4+3] * ent->alpha;
-                               }
-                               m.pointer_color = varray_color4f;
-                       }
-               }
-       }
-       else
+       c_bmodels++;
+       if (r_drawcollisionbrushes.integer < 2)
+               R_DrawSurfaces(ent, false);
+       if (r_drawcollisionbrushes.integer >= 1 && ent->model->brush.num_brushes)
        {
                int i;
-               for (i = 0;i < surface->mesh.num_vertices;i++)
-               {
-                       varray_color4f[i*4+0] = surface->mesh.data_lightmapcolor4f[i*4+0] * ent->colormod[0] * 2.0f;
-                       varray_color4f[i*4+1] = surface->mesh.data_lightmapcolor4f[i*4+1] * ent->colormod[1] * 2.0f;
-                       varray_color4f[i*4+2] = surface->mesh.data_lightmapcolor4f[i*4+2] * ent->colormod[2] * 2.0f;
-                       varray_color4f[i*4+3] = surface->mesh.data_lightmapcolor4f[i*4+3] * ent->alpha;
-               }
-               m.pointer_color = varray_color4f;
-       }
-       if (surface->texture->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
-       {
-               int i, j;
-               float center[3], center2[3], forward[3], right[3], up[3], v[4][3];
-               matrix4x4_t matrix1, imatrix1;
-               R_Mesh_Matrix(&r_identitymatrix);
-               // a single autosprite surface can contain multiple sprites...
-               for (j = 0;j < surface->mesh.num_vertices - 3;j += 4)
-               {
-                       VectorClear(center);
-                       for (i = 0;i < 4;i++)
-                               VectorAdd(center, surface->mesh.data_vertex3f + (j+i) * 3, center);
-                       VectorScale(center, 0.25f, center);
-                       Matrix4x4_Transform(&ent->matrix, center, center2);
-                       // FIXME: calculate vectors from triangle edges instead of using texture vectors as an easy way out?
-                       Matrix4x4_FromVectors(&matrix1, surface->mesh.data_normal3f + j*3, surface->mesh.data_svector3f + j*3, surface->mesh.data_tvector3f + j*3, center);
-                       Matrix4x4_Invert_Simple(&imatrix1, &matrix1);
-                       for (i = 0;i < 4;i++)
-                               Matrix4x4_Transform(&imatrix1, surface->mesh.data_vertex3f + (j+i)*3, v[i]);
-                       if (surface->texture->textureflags & Q3TEXTUREFLAG_AUTOSPRITE2)
-                       {
-                               forward[0] = r_vieworigin[0] - center2[0];
-                               forward[1] = r_vieworigin[1] - center2[1];
-                               forward[2] = 0;
-                               VectorNormalize(forward);
-                               right[0] = forward[1];
-                               right[1] = -forward[0];
-                               right[2] = 0;
-                               up[0] = 0;
-                               up[1] = 0;
-                               up[2] = 1;
-                       }
-                       else
-                       {
-                               VectorCopy(r_viewforward, forward);
-                               VectorCopy(r_viewright, right);
-                               VectorCopy(r_viewup, up);
-                       }
-                       for (i = 0;i < 4;i++)
-                               VectorMAMAMAM(1, center2, v[i][0], forward, v[i][1], right, v[i][2], up, varray_vertex3f + (i+j) * 3);
-               }
-               m.pointer_vertex = varray_vertex3f;
+               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);
        }
-       else
-               m.pointer_vertex = surface->mesh.data_vertex3f;
-       R_Mesh_State(&m);
-       if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
-               qglDisable(GL_CULL_FACE);
-       GL_LockArrays(0, surface->mesh.num_vertices);
-       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-       GL_LockArrays(0, 0);
-       if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
-               qglEnable(GL_CULL_FACE);
 }
 
-void R_Q3BSP_DrawFaceList(entity_render_t *ent, texture_t *t, int texturenumsurfaces, msurface_t **texturesurfacelist)
+typedef struct r_q1bsp_getlightinfo_s
 {
-       int i, texturesurfaceindex;
-       msurface_t *surface;
-       qboolean dolightmap;
-       qboolean dobase;
-       qboolean doambient;
-       qboolean doglow;
-       qboolean dofog;
-       rmeshstate_t m;
-       if (!texturenumsurfaces)
-               return;
-       c_faces += texturenumsurfaces;
-       // gl_lightmaps debugging mode skips normal texturing
-       if (gl_lightmaps.integer)
-       {
-               GL_DepthMask(true);
-               GL_DepthTest(true);
-               GL_BlendFunc(GL_ONE, GL_ZERO);
-               qglDisable(GL_CULL_FACE);
-               memset(&m, 0, sizeof(m));
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.tex[0] = R_GetTexture(surface->lightmaptexture);
-                       m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
-                       if (surface->lightmaptexture)
-                       {
-                               GL_Color(1, 1, 1, 1);
-                               m.pointer_color = NULL;
-                       }
-                       else
-                               m.pointer_color = surface->mesh.data_lightmapcolor4f;
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-               qglEnable(GL_CULL_FACE);
-               return;
-       }
-       // transparent surfaces get sorted for later drawing
-       if ((t->surfaceparms & Q3SURFACEPARM_TRANS) || ent->alpha < 1 || (ent->effects & EF_ADDITIVE))
-       {
-               vec3_t facecenter, center;
-               // drawing sky transparently would be too difficult
-               if (t->surfaceparms & Q3SURFACEPARM_SKY)
-                       return;
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       facecenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
-                       facecenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
-                       facecenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
-                       Matrix4x4_Transform(&ent->matrix, facecenter, center);
-                       R_MeshQueue_AddTransparent(center, R_Q3BSP_DrawFace_TransparentCallback, ent, surface - ent->model->brush.data_surfaces);
-               }
-               return;
-       }
-       // sky surfaces draw sky if needed and render themselves as a depth mask
-       if (t->surfaceparms & Q3SURFACEPARM_SKY)
+       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 (;;)
        {
-               if (skyrendernow)
-               {
-                       skyrendernow = false;
-                       if (skyrendermasked)
-                               R_Sky();
-               }
-               if (!r_q3bsp_renderskydepth.integer)
+               if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
                        return;
-
-               R_Mesh_Matrix(&ent->matrix);
-
-               GL_Color(fogcolor[0], fogcolor[1], fogcolor[2], 1);
-               if (skyrendermasked)
+               if (!node->plane)
+                       break;
+               sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, node->plane) - 1;
+               if (sides == 2)
                {
-                       // depth-only (masking)
-                       GL_ColorMask(0,0,0,0);
-                       // just to make sure that braindead drivers don't draw anything
-                       // despite that colormask...
-                       GL_BlendFunc(GL_ZERO, GL_ONE);
+                       R_Q1BSP_RecursiveGetLightInfo(info, node->children[0]);
+                       node = node->children[1];
                }
                else
-               {
-                       // fog sky
-                       GL_BlendFunc(GL_ONE, GL_ZERO);
-               }
-               GL_DepthMask(true);
-               GL_DepthTest(true);
-
-               memset(&m, 0, sizeof(m));
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-               GL_ColorMask(r_refdef.colormask[0], r_refdef.colormask[1], r_refdef.colormask[2], 1);
-               return;
-       }
-       // anything else is a typical wall, lightmap * texture + glow
-       dolightmap = (ent->flags & RENDER_LIGHT);
-       dobase = true;
-       doambient = r_ambient.value > 0;
-       doglow = t->skin.glow != NULL;
-       dofog = fogenabled;
-       if (t->textureflags & Q3TEXTUREFLAG_TWOSIDED)
-               qglDisable(GL_CULL_FACE);
-       if (!dolightmap && dobase)
-       {
-               dolightmap = false;
-               dobase = false;
-               GL_DepthMask(true);
-               GL_DepthTest(true);
-               GL_BlendFunc(GL_ONE, GL_ZERO);
-               GL_Color(ent->colormod[0], ent->colormod[1], ent->colormod[2], 1);
-               if (t->textureflags & Q3TEXTUREFLAG_TWOSIDED)
-                       qglDisable(GL_CULL_FACE);
-               memset(&m, 0, sizeof(m));
-               m.tex[0] = R_GetTexture(t->skin.base);
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
+                       node = node->children[sides];
        }
-       if (r_lightmapintensity <= 0 && dolightmap && dobase)
+       leaf = (mleaf_t *)node;
+       if (info->pvs == NULL || CHECKPVSBIT(info->pvs, leaf->clusterindex))
        {
-               dolightmap = false;
-               dobase = false;
-               GL_DepthMask(true);
-               GL_DepthTest(true);
-               GL_BlendFunc(GL_ONE, GL_ZERO);
-               GL_Color(0, 0, 0, 1);
-               memset(&m, 0, sizeof(m));
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-       }
-       if (r_textureunits.integer >= 2 && gl_combine.integer && dolightmap && dobase)
-       {
-               // dualtexture combine
-               dolightmap = false;
-               dobase = false;
-               GL_DepthMask(true);
-               GL_DepthTest(true);
-               GL_BlendFunc(GL_ONE, GL_ZERO);
-               memset(&m, 0, sizeof(m));
-               m.tex[0] = R_GetTexture(t->skin.base);
-               GL_Color(r_lightmapintensity * ent->colormod[0], r_lightmapintensity * ent->colormod[1], r_lightmapintensity * ent->colormod[2], 1);
-               m.pointer_color = NULL;
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       if (!surface->lightmaptexture)
-                               continue;
-                       m.tex[1] = R_GetTexture(surface->lightmaptexture);
-                       m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                       m.pointer_texcoord[1] = surface->mesh.data_texcoordlightmap2f;
-                       m.texrgbscale[1] = 2;
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-               if (r_lightmapintensity == 1 && ent->colormod[0] == 1 && ent->colormod[1] == 1 && ent->colormod[2] == 1)
+               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)
                {
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
+                       int leafindex = leaf - info->model->brush.data_leafs;
+                       if (!CHECKPVSBIT(info->outleafpvs, leafindex))
                        {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               if (surface->lightmaptexture)
-                                       continue;
-                               m.tex[1] = R_GetTexture(surface->lightmaptexture);
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               m.pointer_texcoord[1] = surface->mesh.data_texcoordlightmap2f;
-                               m.texrgbscale[1] = 2;
-                               m.pointer_color = surface->mesh.data_lightmapcolor4f;
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               R_Mesh_State(&m);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
+                               SETPVSBIT(info->outleafpvs, leafindex);
+                               info->outleaflist[info->outnumleafs++] = leafindex;
                        }
                }
-               else
+               if (info->outsurfacepvs)
                {
-                       for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
+                       int leafsurfaceindex;
+                       for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
                        {
-                               surface = texturesurfacelist[texturesurfaceindex];
-                               if (surface->lightmaptexture)
-                                       continue;
-                               m.tex[1] = R_GetTexture(surface->lightmaptexture);
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                               m.pointer_texcoord[1] = surface->mesh.data_texcoordlightmap2f;
-                               m.texrgbscale[1] = 2;
-                               m.pointer_color = varray_color4f;
-                               for (i = 0;i < surface->mesh.num_vertices;i++)
+                               int surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
+                               if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
                                {
-                                       varray_color4f[i*4+0] = surface->mesh.data_lightmapcolor4f[i*4+0] * ent->colormod[0] * r_lightmapintensity;
-                                       varray_color4f[i*4+1] = surface->mesh.data_lightmapcolor4f[i*4+1] * ent->colormod[1] * r_lightmapintensity;
-                                       varray_color4f[i*4+2] = surface->mesh.data_lightmapcolor4f[i*4+2] * ent->colormod[2] * r_lightmapintensity;
-                                       varray_color4f[i*4+3] = surface->mesh.data_lightmapcolor4f[i*4+3];
+                                       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;
+                                                       }
+                                               }
+                                       }
                                }
-                               m.pointer_vertex = surface->mesh.data_vertex3f;
-                               R_Mesh_State(&m);
-                               GL_LockArrays(0, surface->mesh.num_vertices);
-                               R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                               GL_LockArrays(0, 0);
                        }
                }
        }
-       // single texture
-       if (dolightmap)
-       {
-               GL_DepthMask(true);
-               GL_DepthTest(true);
-               GL_BlendFunc(GL_ONE, GL_ZERO);
-               memset(&m, 0, sizeof(m));
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.tex[0] = R_GetTexture(surface->lightmaptexture);
-                       m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
-                       if (surface->lightmaptexture)
-                               m.pointer_color = NULL;
-                       else
-                               m.pointer_color = surface->mesh.data_lightmapcolor4f;
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-       }
-       if (dobase)
-       {
-               GL_BlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
-               GL_DepthMask(false);
-               GL_DepthTest(true);
-               GL_Color(r_lightmapintensity * ent->colormod[0], r_lightmapintensity * ent->colormod[1], r_lightmapintensity * ent->colormod[2], 1);
-               memset(&m, 0, sizeof(m));
-               m.tex[0] = R_GetTexture(t->skin.base);
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
-       }
-       if (doambient)
+}
+
+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)
+{
+       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)
        {
-               GL_BlendFunc(GL_ONE, GL_ONE);
-               GL_DepthMask(false);
-               GL_DepthTest(true);
-               GL_Color(r_ambient.value * (1.0f / 128.0f) * ent->colormod[0], r_ambient.value * (1.0f / 128.0f) * ent->colormod[1], r_ambient.value * (1.0f / 128.0f) * ent->colormod[2], 1);
-               memset(&m, 0, sizeof(m));
-               m.tex[0] = R_GetTexture(t->skin.base);
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
+               VectorCopy(info.lightmins, outmins);
+               VectorCopy(info.lightmaxs, outmaxs);
+               *outnumleafspointer = 0;
+               *outnumsurfacespointer = 0;
+               return;
        }
-       if (doglow)
+       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)
        {
-               GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
-               GL_DepthMask(false);
-               GL_DepthTest(true);
-               GL_Color(1, 1, 1, 1);
-               memset(&m, 0, sizeof(m));
-               m.tex[0] = R_GetTexture(t->skin.glow);
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
+               // 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);
        }
-       if (dofog)
+       else if (r_shadow_realtime_dlight_portalculling.integer)
        {
-               float modelorg[3];
-               Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
-               GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-               GL_DepthMask(false);
-               GL_DepthTest(true);
-               GL_Color(1, 1, 1, 1);
-               memset(&m, 0, sizeof(m));
-               m.tex[0] = R_GetTexture(t->skin.fog);
-               m.pointer_color = varray_color4f;
-               for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
-               {
-                       surface = texturesurfacelist[texturesurfaceindex];
-                       if (m.tex[0])
-                               m.pointer_texcoord[0] = surface->mesh.data_texcoordtexture2f;
-                       m.pointer_vertex = surface->mesh.data_vertex3f;
-                       R_Mesh_State(&m);
-                       RSurf_FogPassColors_Vertex3f_Color4f(surface->mesh.data_vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], 1, 1, surface->mesh.num_vertices, modelorg);
-                       GL_LockArrays(0, surface->mesh.num_vertices);
-                       R_Mesh_Draw(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i);
-                       GL_LockArrays(0, 0);
-               }
+               // 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);
        }
-       if (t->textureflags & Q3TEXTUREFLAG_TWOSIDED)
-               qglEnable(GL_CULL_FACE);
-}
-
-void R_Q3BSP_DrawFaces(entity_render_t *ent, int skyfaces)
-{
-       int i, j, f, flagsmask, flags;
-       msurface_t *surface;
-       model_t *model = ent->model;
-       texture_t *t;
-       const int maxfaces = 1024;
-       int numsurfaces = 0;
-       msurface_t *surfacelist[1024];
-       R_Mesh_Matrix(&ent->matrix);
-       flagsmask = Q3SURFACEFLAG_NODRAW | Q3SURFACEFLAG_SKY;
-       if (skyfaces)
-               flags = Q3SURFACEFLAG_SKY;
        else
-               flags = 0;
-       t = NULL;
-       f = 0;
-       numsurfaces = 0;
-       for (i = 0, j = model->firstmodelsurface;i < model->nummodelsurfaces;i++, j++)
        {
-               if (ent != r_refdef.worldentity || r_worldsurfacevisible[j])
-               {
-                       surface = model->brush.data_surfaces + j;
-                       if (t != surface->texture)
-                       {
-                               if (numsurfaces)
-                               {
-                                       R_Q3BSP_DrawFaceList(ent, t, numsurfaces, surfacelist);
-                                       numsurfaces = 0;
-                               }
-                               t = surface->texture;
-                               f = t->surfaceflags & flagsmask;
-                       }
-                       if (f == flags)
-                       {
-                               if (!surface->mesh.num_triangles)
-                                       continue;
-                               surfacelist[numsurfaces++] = surface;
-                               if (numsurfaces >= maxfaces)
-                               {
-                                       R_Q3BSP_DrawFaceList(ent, t, numsurfaces, surfacelist);
-                                       numsurfaces = 0;
-                               }
-                       }
-               }
+               // use BSP recursion as lights are often small
+               R_Q1BSP_RecursiveGetLightInfo(&info, info.model->brush.data_nodes);
        }
-       if (numsurfaces)
-               R_Q3BSP_DrawFaceList(ent, t, numsurfaces, surfacelist);
-}
 
-void R_Q3BSP_DrawSky(entity_render_t *ent)
-{
-       if (r_drawcollisionbrushes.integer < 2)
-               R_Q3BSP_DrawFaces(ent, true);
-}
+       // 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]);
 
-void R_Q3BSP_Draw(entity_render_t *ent)
-{
-       if (r_drawcollisionbrushes.integer < 2)
-               R_Q3BSP_DrawFaces(ent, false);
-       if (r_drawcollisionbrushes.integer >= 1)
-       {
-               int i;
-               model_t *model = ent->model;
-               msurface_t *surface;
-               q3mbrush_t *brush;
-               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->brush.data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
-                       if (surface->mesh.num_collisiontriangles)
-                               R_Q3BSP_DrawCollisionSurface(ent, surface);
-               qglPolygonOffset(0, 0);
-       }
+       *outnumleafspointer = info.outnumleafs;
+       *outnumsurfacespointer = info.outnumsurfaces;
 }
 
-void R_Q3BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outclusterlist, qbyte *outclusterpvs, int *outnumclusterspointer, int *outsurfacelist, qbyte *outsurfacepvs, int *outnumsurfacespointer)
+void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist)
 {
        model_t *model = ent->model;
-       vec3_t lightmins, lightmaxs;
-       int t, leafindex, leafsurfaceindex, surfaceindex, triangleindex, outnumclusters = 0, outnumsurfaces = 0;
-       const int *e;
-       const float *v[3];
        msurface_t *surface;
-       mleaf_t *leaf;
-       const qbyte *pvs;
-       lightmins[0] = relativelightorigin[0] - lightradius;
-       lightmins[1] = relativelightorigin[1] - lightradius;
-       lightmins[2] = relativelightorigin[2] - lightradius;
-       lightmaxs[0] = relativelightorigin[0] + lightradius;
-       lightmaxs[1] = relativelightorigin[1] + lightradius;
-       lightmaxs[2] = relativelightorigin[2] + lightradius;
-       *outnumclusterspointer = 0;
-       *outnumsurfacespointer = 0;
-       memset(outclusterpvs, 0, model->brush.num_pvsclusterbytes);
-       memset(outsurfacepvs, 0, (model->nummodelsurfaces + 7) >> 3);
-       if (model == NULL)
-       {
-               VectorCopy(lightmins, outmins);
-               VectorCopy(lightmaxs, outmaxs);
-               return;
-       }
-       VectorCopy(relativelightorigin, outmins);
-       VectorCopy(relativelightorigin, outmaxs);
-       if (model->brush.GetPVS)
-               pvs = model->brush.GetPVS(model, relativelightorigin);
-       else
-               pvs = NULL;
-       // FIXME: use BSP recursion as lights are often small
-       for (leafindex = 0, leaf = model->brush.data_leafs;leafindex < model->brush.num_leafs;leafindex++, leaf++)
+       int surfacelistindex;
+       float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
+       texture_t *texture;
+       r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Begin(r_shadow_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
+       R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
+       for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
        {
-               if (BoxesOverlap(lightmins, lightmaxs, leaf->mins, leaf->maxs) && (pvs == NULL || CHECKPVSBIT(pvs, leaf->clusterindex)))
-               {
-                       outmins[0] = min(outmins[0], leaf->mins[0]);
-                       outmins[1] = min(outmins[1], leaf->mins[1]);
-                       outmins[2] = min(outmins[2], leaf->mins[2]);
-                       outmaxs[0] = max(outmaxs[0], leaf->maxs[0]);
-                       outmaxs[1] = max(outmaxs[1], leaf->maxs[1]);
-                       outmaxs[2] = max(outmaxs[2], leaf->maxs[2]);
-                       if (outclusterpvs)
-                       {
-                               if (!CHECKPVSBIT(outclusterpvs, leaf->clusterindex))
-                               {
-                                       SETPVSBIT(outclusterpvs, leaf->clusterindex);
-                                       outclusterlist[outnumclusters++] = leaf->clusterindex;
-                               }
-                       }
-                       if (outsurfacepvs)
-                       {
-                               for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
-                               {
-                                       surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
-                                       surface = model->brush.data_surfaces + surfaceindex;
-                                       if (!CHECKPVSBIT(outsurfacepvs, surfaceindex))
-                                       {
-                                               if (BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs) && !(surface->texture->surfaceparms & Q3SURFACEPARM_TRANS) && !(surface->texture->surfaceflags & (Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NODRAW)) && surface->mesh.num_triangles)
-                                               {
-                                                       if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
-                                                       {
-                                                               for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->mesh.num_triangles;triangleindex++, t++, e += 3)
-                                                               {
-                                                                       v[0] = model->brush.shadowmesh->vertex3f + e[0] * 3;
-                                                                       v[1] = model->brush.shadowmesh->vertex3f + e[1] * 3;
-                                                                       v[2] = model->brush.shadowmesh->vertex3f + e[2] * 3;
-                                                                       if (lightmaxs[0] > min(v[0][0], min(v[1][0], v[2][0])) && lightmins[0] < max(v[0][0], max(v[1][0], v[2][0])) && lightmaxs[1] > min(v[0][1], min(v[1][1], v[2][1])) && lightmins[1] < max(v[0][1], max(v[1][1], v[2][1])) && lightmaxs[2] > min(v[0][2], min(v[1][2], v[2][2])) && lightmins[2] < max(v[0][2], max(v[1][2], v[2][2])))
-                                                                       {
-                                                                               SETPVSBIT(outsurfacepvs, surfaceindex);
-                                                                               outsurfacelist[outnumsurfaces++] = surfaceindex;
-                                                                               break;
-                                                                       }
-                                                               }
-                                                       }
-                                                       else
-                                                       {
-                                                               for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->mesh.num_triangles;triangleindex++, t++, e += 3)
-                                                               {
-                                                                       v[0] = model->brush.shadowmesh->vertex3f + e[0] * 3;
-                                                                       v[1] = model->brush.shadowmesh->vertex3f + e[1] * 3;
-                                                                       v[2] = model->brush.shadowmesh->vertex3f + e[2] * 3;
-                                                                       if (PointInfrontOfTriangle(relativelightorigin, 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])))
-                                                                       {
-                                                                               SETPVSBIT(outsurfacepvs, surfaceindex);
-                                                                               outsurfacelist[outnumsurfaces++] = surfaceindex;
-                                                                               break;
-                                                                       }
-                                                               }
-                                                       }
-                                               }
-                                       }
-                               }
-                       }
-               }
+               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, r_shadow_compilingrtlight->cullmins, r_shadow_compilingrtlight->cullmaxs, surface->mins, surface->maxs);
        }
-
-       // limit combined leaf box to light boundaries
-       outmins[0] = max(outmins[0], lightmins[0]);
-       outmins[1] = max(outmins[1], lightmins[1]);
-       outmins[2] = max(outmins[2], lightmins[2]);
-       outmaxs[0] = min(outmaxs[0], lightmaxs[0]);
-       outmaxs[1] = min(outmaxs[1], lightmaxs[1]);
-       outmaxs[2] = min(outmaxs[2], lightmaxs[2]);
-
-       *outnumclusterspointer = outnumclusters;
-       *outnumsurfacespointer = outnumsurfaces;
+       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);
+       r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Finish(r_shadow_mempool, r_shadow_compilingrtlight->static_meshchain_shadow, false, false);
 }
 
-void R_Q3BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist)
+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)
 {
        model_t *model = ent->model;
-       vec3_t lightmins, lightmaxs;
        msurface_t *surface;
        int surfacelistindex;
-       if (r_drawcollisionbrushes.integer < 2)
+       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;
+       R_UpdateAllTextureInfo(ent);
+       if (model->brush.shadowmesh)
        {
-               lightmins[0] = relativelightorigin[0] - lightradius;
-               lightmins[1] = relativelightorigin[1] - lightradius;
-               lightmins[2] = relativelightorigin[2] - lightradius;
-               lightmaxs[0] = relativelightorigin[0] + lightradius;
-               lightmaxs[1] = relativelightorigin[1] + lightradius;
-               lightmaxs[2] = relativelightorigin[2] + lightradius;
-               R_Mesh_Matrix(&ent->matrix);
                R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
                for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
                {
-                       surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
-                       // FIXME: check some manner of surface->rendermode here?
-                       if (!(surface->texture->surfaceflags & Q3SURFACEFLAG_NODRAW) && !(surface->texture->surfaceparms & (Q3SURFACEPARM_SKY | Q3SURFACEPARM_TRANS)) && !(surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED))
-                               R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->mesh.num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
+                       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);
+       }
+       else
+       {
+               projectdistance = lightradius + ent->model->radius*2;
+               Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
+               for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
+               {
+                       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);
                }
-               R_Shadow_VolumeFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, model->brush.shadowmesh->neighbor3i, relativelightorigin, lightradius + model->radius + r_shadow_projectdistance.value, numshadowmark, shadowmarklist);
        }
 }
 
-void R_Q3BSP_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltolight, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz, rtexture_t *lightcubemap, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int numsurfaces, const int *surfacelist)
+#define RSURF_MAX_BATCHSURFACES 1024
+
+void R_Q1BSP_DrawLight(entity_render_t *ent, float *lightcolorbase, float *lightcolorpants, float *lightcolorshirt, int numsurfaces, const int *surfacelist)
 {
        model_t *model = ent->model;
-       vec3_t lightmins, lightmaxs, modelorg;
        msurface_t *surface;
-       int surfacelistindex;
-       if (r_drawcollisionbrushes.integer < 2)
+       texture_t *texture;
+       int surfacelistindex, batchnumsurfaces;
+       msurface_t *batchsurfacelist[RSURF_MAX_BATCHSURFACES];
+       vec3_t modelorg;
+       texture_t *tex;
+       rtexture_t *basetexture = NULL;
+       rtexture_t *glosstexture = NULL;
+       float specularscale = 0;
+       qboolean skip;
+       if (r_drawcollisionbrushes.integer >= 2)
+               return;
+       if (VectorLength2(lightcolorbase) + VectorLength2(lightcolorpants) + VectorLength2(lightcolorshirt) < 0.0001)
+               return;
+       R_UpdateAllTextureInfo(ent);
+       Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
+       tex = NULL;
+       texture = NULL;
+       skip = false;
+       batchnumsurfaces = 0;
+       for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
        {
-               lightmins[0] = relativelightorigin[0] - lightradius;
-               lightmins[1] = relativelightorigin[1] - lightradius;
-               lightmins[2] = relativelightorigin[2] - lightradius;
-               lightmaxs[0] = relativelightorigin[0] + lightradius;
-               lightmaxs[1] = relativelightorigin[1] + lightradius;
-               lightmaxs[2] = relativelightorigin[2] + lightradius;
-               R_Mesh_Matrix(&ent->matrix);
-               Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
-               for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
+               if ((ent == r_refdef.worldentity && !r_worldsurfacevisible[surfacelist[surfacelistindex]]))
+                       continue;
+               surface = model->data_surfaces + surfacelist[surfacelistindex];
+               if (tex != surface->texture)
                {
-                       surface = model->brush.data_surfaces + surfacelist[surfacelistindex];
-                       if (r_shadow_compilingrtlight)
+                       if (batchnumsurfaces > 0)
                        {
-                               // if compiling an rtlight, capture the mesh
-                               Mod_ShadowMesh_AddMesh(r_shadow_mempool, r_shadow_compilingrtlight->static_meshchain_light, surface->texture->skin.base, surface->texture->skin.gloss, surface->texture->skin.nmap, surface->mesh.data_vertex3f, surface->mesh.data_svector3f, surface->mesh.data_tvector3f, surface->mesh.data_normal3f, surface->mesh.data_texcoordtexture2f, surface->mesh.num_triangles, surface->mesh.data_element3i);
+                               R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist, lightcolorbase, lightcolorpants, lightcolorshirt, basetexture, texture->skin.pants, texture->skin.shirt, texture->skin.nmap, glosstexture, specularscale, modelorg);
+                               batchnumsurfaces = 0;
                        }
-                       else if ((ent != r_refdef.worldentity || r_worldsurfacevisible[surfacelist[surfacelistindex]]) && !(surface->texture->surfaceflags & Q3SURFACEFLAG_NODRAW) && surface->mesh.num_triangles)
+                       tex = surface->texture;
+                       texture = surface->texture->currentframe;
+                       // FIXME: transparent surfaces need to be lit later
+                       skip = (texture->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) != MATERIALFLAG_WALL;
+                       if (skip)
+                               continue;
+                       if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
+                               qglDisable(GL_CULL_FACE);
+                       else
+                               qglEnable(GL_CULL_FACE);
+                       glosstexture = r_texture_black;
+                       specularscale = 0;
+                       if (texture->skin.gloss)
+                       {
+                               if (r_shadow_gloss.integer >= 1 && r_shadow_glossintensity.value > 0 && r_shadow_rtlight->specularscale > 0)
+                               {
+                                       glosstexture = texture->skin.gloss;
+                                       specularscale = r_shadow_rtlight->specularscale * r_shadow_glossintensity.value;
+                               }
+                       }
+                       else
+                       {
+                               if (r_shadow_gloss.integer >= 2 && r_shadow_gloss2intensity.value > 0 && r_shadow_glossintensity.value > 0 && r_shadow_rtlight->specularscale > 0)
+                               {
+                                       glosstexture = r_texture_white;
+                                       specularscale = r_shadow_rtlight->specularscale * r_shadow_gloss2intensity.value;
+                               }
+                       }
+                       basetexture = (ent->colormap < 0 && texture->skin.merged) ? texture->skin.merged : texture->skin.base;
+                       if ((r_shadow_rtlight->ambientscale + r_shadow_rtlight->diffusescale) * (VectorLength2(lightcolorbase) + VectorLength2(lightcolorpants) + VectorLength2(lightcolorshirt)) + specularscale * VectorLength2(lightcolorbase) < (1.0f / 1048576.0f))
+                               skip = true;
+               }
+               if (!skip && surface->num_triangles)
+               {
+                       if (batchnumsurfaces == RSURF_MAX_BATCHSURFACES)
                        {
-                               if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
-                                       qglDisable(GL_CULL_FACE);
-                               R_Shadow_RenderLighting(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_element3i, surface->mesh.data_vertex3f, surface->mesh.data_svector3f, surface->mesh.data_tvector3f, surface->mesh.data_normal3f, surface->mesh.data_texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightcolor, matrix_modeltolight, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, surface->texture->skin.base, surface->texture->skin.nmap, surface->texture->skin.gloss, lightcubemap, ambientscale, diffusescale, specularscale);
-                               if (surface->texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
-                                       qglEnable(GL_CULL_FACE);
+                               R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist, lightcolorbase, lightcolorpants, lightcolorshirt, basetexture, texture->skin.pants, texture->skin.shirt, texture->skin.nmap, glosstexture, specularscale, modelorg);
+                               batchnumsurfaces = 0;
                        }
+                       batchsurfacelist[batchnumsurfaces++] = surface;
                }
        }
+       if (batchnumsurfaces > 0)
+       {
+               R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist, lightcolorbase, lightcolorpants, lightcolorshirt, basetexture, texture->skin.pants, texture->skin.shirt, texture->skin.nmap, glosstexture, specularscale, modelorg);
+               batchnumsurfaces = 0;
+       }
+       qglEnable(GL_CULL_FACE);
 }
 
 #if 0
@@ -2311,21 +837,14 @@ static void gl_surf_newmap(void)
 
 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_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);
-       Cvar_RegisterVariable(&gl_lightmaps);
 
        //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);
 }