- if (!dolightmap && dobase)
- {
- dolightmap = false;
- dobase = false;
- 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);
- if (waterscrolling)
- m.texmatrix[0] = r_surf_waterscrollmatrix;
- for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
- {
- surface = texturesurfacelist[texturesurfaceindex];
- m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
- 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 (r_lightmapintensity <= 0 && dolightmap && dobase)
- {
- dolightmap = false;
- dobase = false;
- GL_Color(0, 0, 0, 1);
- memset(&m, 0, sizeof(m));
- for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
- {
- surface = texturesurfacelist[texturesurfaceindex];
- m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
- 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
- GL_BlendFunc(GL_ONE, GL_ZERO);
- GL_DepthMask(true);
- dolightmap = false;
- dobase = false;
- memset(&m, 0, sizeof(m));
- m.tex[1] = R_GetTexture(texture->skin.base);
- if (waterscrolling)
- m.texmatrix[1] = r_surf_waterscrollmatrix;
- m.texrgbscale[1] = 2;
- r = ent->colormod[0] * r_lightmapintensity;
- g = ent->colormod[1] * r_lightmapintensity;
- b = ent->colormod[2] * r_lightmapintensity;
- for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
- {
- surface = texturesurfacelist[texturesurfaceindex];
- memset(&m, 0, sizeof(m));
- m.tex[1] = R_GetTexture(texture->skin.base);
- if (waterscrolling)
- m.texmatrix[1] = r_surf_waterscrollmatrix;
- m.texrgbscale[1] = 2;
- m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
- m.pointer_texcoord[0] = surface->mesh.data_texcoordlightmap2f;
- m.pointer_texcoord[1] = surface->mesh.data_texcoordtexture2f;
- if (surface->lightmaptexture)
- {
- m.tex[0] = R_GetTexture(surface->lightmaptexture);
- m.pointer_color = NULL;
- GL_Color(r, g, b, 1);
- }
- else if (r == 1 && g == 1 && b == 1)
- {
- m.tex[0] = R_GetTexture(r_texture_white);
- m.pointer_color = surface->mesh.data_lightmapcolor4f;
- }
- else
- {
- m.tex[0] = R_GetTexture(r_texture_white);
- m.pointer_color = varray_color4f;
- for (i = 0;i < surface->mesh.num_vertices;i++)
- {
- varray_color4f[i*4+0] = surface->mesh.data_lightmapcolor4f[i*4+0] * r;
- varray_color4f[i*4+1] = surface->mesh.data_lightmapcolor4f[i*4+1] * g;
- varray_color4f[i*4+2] = surface->mesh.data_lightmapcolor4f[i*4+2] * b;
- varray_color4f[i*4+3] = surface->mesh.data_lightmapcolor4f[i*4+3];
- }
- }
- 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_BlendFunc(GL_ONE, GL_ZERO);
- GL_DepthMask(true);
- GL_Color(1, 1, 1, 1);
- memset(&m, 0, sizeof(m));
- for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
- {
- surface = texturesurfacelist[texturesurfaceindex];
- m.pointer_vertex = RSurf_GetVertexPointer(ent, surface);
- 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;
- 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_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);
- if (waterscrolling)
- m.texmatrix[0] = r_surf_waterscrollmatrix;
- for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
+ int leafstackpos;
+ mportal_t *p;
+ mleaf_t *leafstack[8192];
+ // simple-frustum 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 some surfaces that pvs alone would miss
+ // (such as a room in pvs that is hidden behind a wall, but the
+ // passage leading to the room is off-screen)
+ leafstack[0] = viewleaf;
+ leafstackpos = 1;
+ while (leafstackpos)
+ {
+ r_refdef.stats.world_leafs++;
+ leaf = leafstack[--leafstackpos];
+ r_viewcache.world_leafvisible[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_viewcache.world_surfacevisible[*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)