reimplemented rtlight portal culling (used for compiled rtlights, and can be used...

[xonotic/darkplaces.git] / gl_rsurf.c

diff --git a/gl_rsurf.c b/gl_rsurf.c
index 16e50846b19cbc90e9624b40f92fa603a18c978e..13b197a4ca1f790cbecc2478917ec5f506a5a4ba 100644 (file)
--- a/gl_rsurf.c
+++ b/gl_rsurf.c
@@ -21,6 +21,7 @@ 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
 
@@ -1771,7 +1772,7 @@ void R_Q1BSP_RecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, mnode_t *node)
                                                        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 (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])))
+                                                       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;
@@ -1820,25 +1821,29 @@ void R_Q1BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, floa
        else
                info.pvs = NULL;
        R_UpdateAllTextureInfo(ent);
-       /*
        if (r_shadow_compilingrtlight)
        {
-               Portal_Visibility(info.model, info.relativelightorigin, leafmark, surfacemark, const mplane_t *frustumplanes, int numfrustumplanes, int exact, const float *boxmins, const float *boxmaxs, float *updateleafsmins, float *updateleafsmaxs)
+               // use portal recursion for exact light volume culling, and exact surface checking
+               Portal_Visibility(info.model, info.relativelightorigin, info.outleaflist, info.outleafpvs, &info.outnumleafs, info.outsurfacelist, info.outsurfacepvs, &info.outnumsurfaces, NULL, 0, true, info.lightmins, info.lightmaxs, info.outmins, info.outmaxs);
+       }
+       else if (r_shadow_realtime_dlight_portalculling.integer)
+       {
+               // use portal recursion for exact light volume culling, but not the expensive exact surface checking
+               Portal_Visibility(info.model, info.relativelightorigin, info.outleaflist, info.outleafpvs, &info.outnumleafs, info.outsurfacelist, info.outsurfacepvs, &info.outnumsurfaces, NULL, 0, r_shadow_realtime_dlight_portalculling.integer >= 2, info.lightmins, info.lightmaxs, info.outmins, info.outmaxs);
        }
        else
-       */
        {
                // use BSP recursion as lights are often small
                R_Q1BSP_RecursiveGetLightInfo(&info, info.model->brush.data_nodes);
        }
 
        // limit combined leaf box to light boundaries
-       outmins[0] = max(info.outmins[0], info.lightmins[0]);
-       outmins[1] = max(info.outmins[1], info.lightmins[1]);
-       outmins[2] = max(info.outmins[2], info.lightmins[2]);
-       outmaxs[0] = min(info.outmaxs[0], info.lightmaxs[0]);
-       outmaxs[1] = min(info.outmaxs[1], info.lightmaxs[1]);
-       outmaxs[2] = min(info.outmaxs[2], info.lightmaxs[2]);
+       outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
+       outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
+       outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
+       outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
+       outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
+       outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
 
        *outnumleafspointer = info.outnumleafs;
        *outnumsurfacespointer = info.outnumsurfaces;
@@ -1889,7 +1894,27 @@ void R_Q1BSP_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t
                                // if compiling an rtlight, capture the mesh
                                t = surface->texture;
                                if ((t->basematerialflags & (MATERIALFLAG_WALL | MATERIALFLAG_TRANSPARENT)) == MATERIALFLAG_WALL)
+                               {
+#if 1
+                                       int tri;
+                                       int *e;
+                                       float *lightmins, *lightmaxs, *v[3], *vertex3f;
+                                       e = surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle;
+                                       vertex3f = surface->groupmesh->data_vertex3f;
+                                       lightmins = r_shadow_compilingrtlight->cullmins;
+                                       lightmaxs = r_shadow_compilingrtlight->cullmaxs;
+                                       for (tri = 0;tri < surface->num_triangles;tri++, e += 3)
+                                       {
+                                               v[0] = vertex3f + e[0] * 3;
+                                               v[1] = vertex3f + e[1] * 3;
+                                               v[2] = vertex3f + e[2] * 3;
+                                               if (PointInfrontOfTriangle(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])))
+                                                       Mod_ShadowMesh_AddMesh(r_shadow_mempool, r_shadow_compilingrtlight->static_meshchain_light, surface->texture->skin.base, surface->texture->skin.gloss, surface->texture->skin.nmap, surface->groupmesh->data_vertex3f, surface->groupmesh->data_svector3f, surface->groupmesh->data_tvector3f, surface->groupmesh->data_normal3f, surface->groupmesh->data_texcoordtexture2f, 1, e);
+                                       }
+#else
                                        Mod_ShadowMesh_AddMesh(r_shadow_mempool, r_shadow_compilingrtlight->static_meshchain_light, surface->texture->skin.base, surface->texture->skin.gloss, surface->texture->skin.nmap, surface->groupmesh->data_vertex3f, surface->groupmesh->data_svector3f, surface->groupmesh->data_tvector3f, surface->groupmesh->data_normal3f, surface->groupmesh->data_texcoordtexture2f, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
+#endif
+                               }
                        }
                        else if (ent != r_refdef.worldentity || r_worldsurfacevisible[surfacelist[surfacelistindex]])
                        {