+ lightpvsbytes = cl.worldmodel->brush.FatPVS(cl.worldmodel, rtlight->shadoworigin, 0, lightfullpvs, sizeof(lightfullpvs));
+ memset(lightpvs, 0, lightpvsbytes);
+ if (cl.worldmodel->brushq3.num_leafs)
+ {
+ q3mleaf_t *leaf;
+ q3mface_t *face;
+
+ // make a pvs that only includes things within the box
+ for (i = 0, leaf = cl.worldmodel->brushq3.data_leafs;i < cl.worldmodel->brushq3.num_leafs;i++, leaf++)
+ if (CHECKPVSBIT(lightfullpvs, leaf->clusterindex) && BoxesOverlap(leaf->mins, leaf->maxs, mins, maxs))
+ SETPVSBIT(lightpvs, leaf->clusterindex);
+
+ // make a cluster list for fast visibility checking during rendering
+ for (i = 0, rtlight->static_numclusters = 0;i < cl.worldmodel->brush.num_pvsclusters;i++)
+ if (CHECKPVSBIT(lightpvs, i))
+ rtlight->static_numclusters++;
+ rtlight->static_clusterindices = Mem_Alloc(r_shadow_mempool, rtlight->static_numclusters * sizeof(int));
+ for (i = 0, rtlight->static_numclusters = 0;i < cl.worldmodel->brush.num_pvsclusters;i++)
+ if (CHECKPVSBIT(lightpvs, i))
+ rtlight->static_clusterindices[rtlight->static_numclusters++] = i;
+
+ VectorCopy(rtlight->shadoworigin, rtlight->cullmins);
+ VectorCopy(rtlight->shadoworigin, rtlight->cullmaxs);
+ for (i = 0, face = cl.worldmodel->brushq3.data_thismodel->firstface;i < cl.worldmodel->brushq3.data_thismodel->numfaces;i++, face++)
+ face->lighttemp_castshadow = false;
+ for (i = 0, leaf = cl.worldmodel->brushq3.data_leafs;i < cl.worldmodel->brushq3.num_leafs;i++, leaf++)
+ {
+ if (CHECKPVSBIT(lightpvs, leaf->clusterindex) && BoxesOverlap(leaf->mins, leaf->maxs, mins, maxs))
+ {
+ for (k = 0;k < 3;k++)
+ {
+ if (rtlight->cullmins[k] > leaf->mins[k]) rtlight->cullmins[k] = leaf->mins[k];
+ if (rtlight->cullmaxs[k] < leaf->maxs[k]) rtlight->cullmaxs[k] = leaf->maxs[k];
+ }
+ for (j = 0;j < leaf->numleaffaces;j++)
+ {
+ face = leaf->firstleafface[j];
+ if (BoxesOverlap(face->mins, face->maxs, mins, maxs))
+ face->lighttemp_castshadow = true;
+ }
+ }
+ }
+
+ // add surfaces to shadow casting mesh and light mesh
+ for (i = 0, face = cl.worldmodel->brushq3.data_thismodel->firstface;i < cl.worldmodel->brushq3.data_thismodel->numfaces;i++, face++)
+ {
+ if (face->lighttemp_castshadow)
+ {
+ face->lighttemp_castshadow = false;
+ if (!(face->texture->surfaceflags & (Q3SURFACEFLAG_NODRAW | Q3SURFACEFLAG_SKY)))
+ {
+ if (rtlight->shadow)
+ if (!(face->texture->nativecontents & CONTENTSQ3_TRANSLUCENT))
+ Mod_ShadowMesh_AddMesh(r_shadow_mempool, castmesh, NULL, NULL, NULL, face->data_vertex3f, NULL, NULL, NULL, NULL, face->num_triangles, face->data_element3i);
+ if (!(face->texture->surfaceflags & Q3SURFACEFLAG_SKY))
+ Mod_ShadowMesh_AddMesh(r_shadow_mempool, rtlight->static_meshchain_light, face->texture->skin.base, face->texture->skin.gloss, face->texture->skin.nmap, face->data_vertex3f, face->data_svector3f, face->data_tvector3f, face->data_normal3f, face->data_texcoordtexture2f, face->num_triangles, face->data_element3i);
+ }
+ }
+ }
+ }
+ else if (cl.worldmodel->brushq1.num_leafs)
+ {
+ mleaf_t *leaf;
+ msurface_t *surf;
+ VectorCopy(rtlight->shadoworigin, rtlight->cullmins);
+ VectorCopy(rtlight->shadoworigin, rtlight->cullmaxs);
+ i = CL_PointQ1Contents(rtlight->shadoworigin);
+
+ for (i = 0, surf = cl.worldmodel->brushq1.surfaces + cl.worldmodel->brushq1.firstmodelsurface;i < cl.worldmodel->brushq1.nummodelsurfaces;i++, surf++)
+ surf->lighttemp_castshadow = false;
+
+ if (r_shadow_portallight.integer && i != CONTENTS_SOLID && i != CONTENTS_SKY)
+ {
+ qbyte *byteleafpvs;
+ qbyte *bytesurfacepvs;
+
+ byteleafpvs = Mem_Alloc(tempmempool, cl.worldmodel->brushq1.num_leafs);
+ bytesurfacepvs = Mem_Alloc(tempmempool, cl.worldmodel->brushq1.numsurfaces);
+
+ Portal_Visibility(cl.worldmodel, rtlight->shadoworigin, byteleafpvs, bytesurfacepvs, NULL, 0, true, mins, maxs, rtlight->cullmins, rtlight->cullmaxs);
+
+ // make a pvs that only includes things within the box
+ for (i = 0, leaf = cl.worldmodel->brushq1.data_leafs;i < cl.worldmodel->brushq1.num_leafs;i++, leaf++)
+ {
+ if (byteleafpvs[i] && BoxesOverlap(leaf->mins, leaf->maxs, mins, maxs))
+ {
+ SETPVSBIT(lightpvs, leaf->clusterindex);
+ for (k = 0;k < 3;k++)
+ {
+ if (rtlight->cullmins[k] > leaf->mins[k]) rtlight->cullmins[k] = leaf->mins[k];
+ if (rtlight->cullmaxs[k] < leaf->maxs[k]) rtlight->cullmaxs[k] = leaf->maxs[k];
+ }
+ }
+ }
+
+ for (i = 0, surf = cl.worldmodel->brushq1.surfaces;i < cl.worldmodel->brushq1.numsurfaces;i++, surf++)
+ if (bytesurfacepvs[i] && BoxesOverlap(surf->poly_mins, surf->poly_maxs, mins, maxs))
+ surf->lighttemp_castshadow = true;
+
+ Mem_Free(byteleafpvs);
+ Mem_Free(bytesurfacepvs);
+
+ // make a cluster list for fast visibility checking during rendering
+ for (i = 0, rtlight->static_numclusters = 0;i < cl.worldmodel->brush.num_pvsclusters;i++)
+ if (CHECKPVSBIT(lightpvs, i))
+ rtlight->static_numclusters++;
+ rtlight->static_clusterindices = Mem_Alloc(r_shadow_mempool, rtlight->static_numclusters * sizeof(int));
+ for (i = 0, rtlight->static_numclusters = 0;i < cl.worldmodel->brush.num_pvsclusters;i++)
+ if (CHECKPVSBIT(lightpvs, i))
+ rtlight->static_clusterindices[rtlight->static_numclusters++] = i;
+ }
+ else
+ {
+ for (i = 0, leaf = cl.worldmodel->brushq1.data_leafs;i < cl.worldmodel->brushq1.num_leafs;i++, leaf++)
+ {
+ if (CHECKPVSBIT(lightfullpvs, leaf->clusterindex) && BoxesOverlap(leaf->mins, leaf->maxs, mins, maxs))
+ {
+ // make a pvs that only includes things within the box
+ SETPVSBIT(lightpvs, leaf->clusterindex);
+ for (k = 0;k < 3;k++)
+ {
+ if (rtlight->cullmins[k] > leaf->mins[k]) rtlight->cullmins[k] = leaf->mins[k];
+ if (rtlight->cullmaxs[k] < leaf->maxs[k]) rtlight->cullmaxs[k] = leaf->maxs[k];
+ }
+ for (j = 0;j < leaf->nummarksurfaces;j++)
+ {
+ surf = cl.worldmodel->brushq1.surfaces + leaf->firstmarksurface[j];
+ if (!surf->lighttemp_castshadow && BoxesOverlap(surf->poly_mins, surf->poly_maxs, mins, maxs))
+ surf->lighttemp_castshadow = true;
+ }
+ }
+ }
+
+ // make a pvs that only includes things within the box
+ for (i = 0, leaf = cl.worldmodel->brushq1.data_leafs;i < cl.worldmodel->brushq1.num_leafs;i++, leaf++)
+ if (CHECKPVSBIT(lightfullpvs, leaf->clusterindex) && BoxesOverlap(leaf->mins, leaf->maxs, mins, maxs))
+ SETPVSBIT(lightpvs, leaf->clusterindex);
+
+ // make a cluster list for fast visibility checking during rendering
+ for (i = 0, rtlight->static_numclusters = 0;i < cl.worldmodel->brush.num_pvsclusters;i++)
+ if (CHECKPVSBIT(lightpvs, i))
+ rtlight->static_numclusters++;
+ rtlight->static_clusterindices = Mem_Alloc(r_shadow_mempool, rtlight->static_numclusters * sizeof(int));
+ for (i = 0, rtlight->static_numclusters = 0;i < cl.worldmodel->brush.num_pvsclusters;i++)
+ if (CHECKPVSBIT(lightpvs, i))
+ rtlight->static_clusterindices[rtlight->static_numclusters++] = i;
+ }
+
+ // add surfaces to shadow casting mesh and light mesh
+ for (i = 0, surf = cl.worldmodel->brushq1.surfaces + cl.worldmodel->brushq1.firstmodelsurface;i < cl.worldmodel->brushq1.nummodelsurfaces;i++, surf++)
+ {
+ if (surf->lighttemp_castshadow)
+ {
+ surf->lighttemp_castshadow = false;
+ if (rtlight->shadow && (surf->flags & SURF_SHADOWCAST))
+ Mod_ShadowMesh_AddMesh(r_shadow_mempool, castmesh, NULL, NULL, NULL, surf->mesh.data_vertex3f, NULL, NULL, NULL, NULL, surf->mesh.num_triangles, surf->mesh.data_element3i);
+ if (!(surf->flags & SURF_DRAWSKY))
+ Mod_ShadowMesh_AddMesh(r_shadow_mempool, rtlight->static_meshchain_light, surf->texinfo->texture->skin.base, surf->texinfo->texture->skin.gloss, surf->texinfo->texture->skin.nmap, surf->mesh.data_vertex3f, surf->mesh.data_svector3f, surf->mesh.data_tvector3f, surf->mesh.data_normal3f, surf->mesh.data_texcoordtexture2f, surf->mesh.num_triangles, surf->mesh.data_element3i);
+ }
+ }
+ }
+ }
+
+ // limit box to light bounds (in case it grew larger)
+ for (k = 0;k < 3;k++)
+ {
+ if (rtlight->cullmins[k] < rtlight->shadoworigin[k] - rtlight->radius) rtlight->cullmins[k] = rtlight->shadoworigin[k] - rtlight->radius;
+ if (rtlight->cullmaxs[k] > rtlight->shadoworigin[k] + rtlight->radius) rtlight->cullmaxs[k] = rtlight->shadoworigin[k] + rtlight->radius;
+ }
+ rtlight->cullradius = RadiusFromBoundsAndOrigin(rtlight->cullmins, rtlight->cullmaxs, rtlight->shadoworigin);
+ rtlight->cullradius = min(rtlight->cullradius, rtlight->radius);
+
+ // cast shadow volume from castmesh
+ castmesh = Mod_ShadowMesh_Finish(r_shadow_mempool, castmesh, false, true);
+ if (castmesh)
+ {
+ maxverts = 0;
+ for (mesh = castmesh;mesh;mesh = mesh->next)
+ {
+ R_Shadow_ResizeShadowElements(mesh->numtriangles);
+ maxverts = max(maxverts, mesh->numverts * 2);
+ }
+
+ if (maxverts > 0)
+ {
+ vertex3f = Mem_Alloc(r_shadow_mempool, maxverts * sizeof(float[3]));
+ // now that we have the buffers big enough, construct and add
+ // the shadow volume mesh
+ if (rtlight->shadow)
+ rtlight->static_meshchain_shadow = Mod_ShadowMesh_Begin(r_shadow_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
+ for (mesh = castmesh;mesh;mesh = mesh->next)
+ {
+ Mod_BuildTriangleNeighbors(mesh->neighbor3i, mesh->element3i, mesh->numtriangles);
+ R_Shadow_PrepareShadowMark(mesh->numtriangles);
+ for (i = 0;i < mesh->numtriangles;i++)
+ {
+ const float *v[3];
+ v[0] = mesh->vertex3f + mesh->element3i[i*3+0] * 3;
+ v[1] = mesh->vertex3f + mesh->element3i[i*3+1] * 3;
+ v[2] = mesh->vertex3f + mesh->element3i[i*3+2] * 3;
+ if (PointInfrontOfTriangle(rtlight->shadoworigin, v[0], v[1], v[2]) && rtlight->cullmaxs[0] > min(v[0][0], min(v[1][0], v[2][0])) && rtlight->cullmins[0] < max(v[0][0], max(v[1][0], v[2][0])) && rtlight->cullmaxs[1] > min(v[0][1], min(v[1][1], v[2][1])) && rtlight->cullmins[1] < max(v[0][1], max(v[1][1], v[2][1])) && rtlight->cullmaxs[2] > min(v[0][2], min(v[1][2], v[2][2])) && rtlight->cullmins[2] < max(v[0][2], max(v[1][2], v[2][2])))
+ shadowmarklist[numshadowmark++] = i;
+ }
+ if (maxshadowelements < numshadowmark * 24)
+ R_Shadow_ResizeShadowElements((numshadowmark + 256) * 24);
+ if ((tris = R_Shadow_ConstructShadowVolume(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->neighbor3i, mesh->vertex3f, NULL, shadowelements, vertex3f, rtlight->shadoworigin, r_shadow_projectdistance.value, numshadowmark, shadowmarklist)))
+ Mod_ShadowMesh_AddMesh(r_shadow_mempool, rtlight->static_meshchain_shadow, NULL, NULL, NULL, vertex3f, NULL, NULL, NULL, NULL, tris, shadowelements);
+ }
+ Mem_Free(vertex3f);
+ vertex3f = NULL;
+ }
+ // we're done with castmesh now
+ Mod_ShadowMesh_Free(castmesh);
+ }
+
+ rtlight->static_meshchain_shadow = Mod_ShadowMesh_Finish(r_shadow_mempool, rtlight->static_meshchain_shadow, false, false);
+ rtlight->static_meshchain_light = Mod_ShadowMesh_Finish(r_shadow_mempool, rtlight->static_meshchain_light, true, false);
+
+ k = 0;
+ if (rtlight->static_meshchain_shadow)
+ for (mesh = rtlight->static_meshchain_shadow;mesh;mesh = mesh->next)
+ k += mesh->numtriangles;
+ l = 0;
+ if (rtlight->static_meshchain_light)
+ for (mesh = rtlight->static_meshchain_light;mesh;mesh = mesh->next)
+ l += mesh->numtriangles;
+ Con_DPrintf("static light built: %f %f %f : %f %f %f box, %i shadow volume triangles, %i light triangles\n", rtlight->cullmins[0], rtlight->cullmins[1], rtlight->cullmins[2], rtlight->cullmaxs[0], rtlight->cullmaxs[1], rtlight->cullmaxs[2], k, l);
+}
+
+void R_RTLight_Uncompile(rtlight_t *rtlight)
+{
+ if (rtlight->compiled)
+ {
+ if (rtlight->static_meshchain_shadow)
+ Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow);
+ rtlight->static_meshchain_shadow = NULL;
+ if (rtlight->static_meshchain_light)
+ Mod_ShadowMesh_Free(rtlight->static_meshchain_light);
+ rtlight->static_meshchain_light = NULL;
+ if (rtlight->static_clusterindices)
+ Mem_Free(rtlight->static_clusterindices);
+ rtlight->static_clusterindices = NULL;
+ rtlight->static_numclusters = 0;
+ rtlight->compiled = false;
+ }
+}
+
+int shadowframecount = 0;
+
+void R_TestAndDrawShadowVolume(entity_render_t *ent, vec3_t shadoworigin, vec_t shadowradius, vec3_t cullmins, vec3_t cullmaxs)
+{
+ // rough checks
+ if ((BoxesOverlap(ent->mins, ent->maxs, cullmins, cullmaxs) || !r_shadow_cull.integer) && (ent->flags & RENDER_SHADOW) && ent->model && ent->model->DrawShadowVolume)
+ {
+ vec3_t relativeshadoworigin;
+ Matrix4x4_Transform(&ent->inversematrix, shadoworigin, relativeshadoworigin);
+ ent->model->DrawShadowVolume (ent, relativeshadoworigin, shadowradius);
+ }
+}
+
+void R_Shadow_DrawWorldLightShadowVolume(matrix4x4_t *matrix, dlight_t *light);
+
+void R_DrawRTLight(rtlight_t *rtlight, int visiblevolumes)
+{
+ int i, shadow;
+ entity_render_t *ent;
+ float f;
+ vec3_t relativelightorigin, relativeeyeorigin, lightcolor;
+ rtexture_t *cubemaptexture;
+ matrix4x4_t matrix_modeltolight, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz;
+
+ if (d_lightstylevalue[rtlight->style] <= 0)
+ return;
+ if (rtlight->compiled)
+ {
+ if (R_CullBox(rtlight->cullmins, rtlight->cullmaxs))
+ return;
+ for (i = 0;i < rtlight->static_numclusters;i++)
+ if (CHECKPVSBIT(r_pvsbits, rtlight->static_clusterindices[i]))
+ break;
+ if (i == rtlight->static_numclusters)
+ return;
+ }
+ else if (VIS_CullBox(rtlight->cullmins, rtlight->cullmaxs))
+ return;
+ if (R_Shadow_ScissorForBBox(rtlight->cullmins, rtlight->cullmaxs))
+ return;
+
+ if (rtlight->isstatic && !rtlight->compiled && r_shadow_staticworldlights.integer)
+ R_RTLight_Compile(rtlight);
+
+ f = d_lightstylevalue[rtlight->style] * (1.0f / 256.0f);
+ VectorScale(rtlight->color, f, lightcolor);
+ /*
+ if (rtlight->selected)
+ {
+ f = 2 + sin(realtime * M_PI * 4.0);
+ VectorScale(lightcolor, f, lightcolor);
+ }
+ */
+
+ if (rtlight->cubemapname[0])
+ cubemaptexture = R_Shadow_Cubemap(rtlight->cubemapname);
+ else
+ cubemaptexture = NULL;
+
+ shadow = rtlight->shadow && (rtlight->isstatic ? r_shadow_worldshadows.integer : r_shadow_dlightshadows.integer);
+ if (shadow && (gl_stencil || visiblevolumes))
+ {
+ if (!visiblevolumes)
+ R_Shadow_Stage_ShadowVolumes();
+ ent = &cl_entities[0].render;
+ if (r_shadow_staticworldlights.integer && rtlight->compiled)