lightmap update checking is now handled very differently; each brush model has a...
authorhavoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Sat, 16 Nov 2002 12:49:34 +0000 (12:49 +0000)
committerhavoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Sat, 16 Nov 2002 12:49:34 +0000 (12:49 +0000)
git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@2630 d7cf8633-e32d-0410-b094-e92efae38249

gl_rsurf.c
model_brush.c
model_brush.h
model_shared.h
r_light.c
render.h

index db6c318..d6d0ccc 100644 (file)
@@ -1430,7 +1430,7 @@ void R_PrepareSurfaces(entity_render_t *ent)
 {
        int i, numsurfaces, *surfacevisframes;
        model_t *model;
-       msurface_t *surf, *surfaces;
+       msurface_t *surf, *surfaces, **surfchain;
        vec3_t modelorg;
 
        if (!ent->model)
@@ -1447,6 +1447,26 @@ void R_PrepareSurfaces(entity_render_t *ent)
        if (r_dynamic.integer && r_shadow_lightingmode < 1)
                R_MarkLights(ent);
 
+       if (model->light_ambient != r_ambient.value || model->light_scalebit != r_lightmapscalebit)
+       {
+               model->light_ambient = r_ambient.value;
+               model->light_scalebit = r_lightmapscalebit;
+               for (i = 0;i < model->nummodelsurfaces;i++)
+                       model->surfaces[i + model->firstmodelsurface].cached_dlight = true;
+       }
+       else
+       {
+               for (i = 0;i < model->light_styles;i++)
+               {
+                       if (model->light_stylevalue[i] != d_lightstylevalue[model->light_style[i]])
+                       {
+                               model->light_stylevalue[i] = d_lightstylevalue[model->light_style[i]];
+                               for (surfchain = model->light_styleupdatechains[i];*surfchain;surfchain++)
+                                       (**surfchain).cached_dlight = true;
+                       }
+               }
+       }
+
        for (i = 0, surf = surfaces;i < numsurfaces;i++, surf++)
        {
                if (surfacevisframes[i] == r_framecount)
@@ -1468,6 +1488,10 @@ void R_PrepareSurfaces(entity_render_t *ent)
                        {
                                c_faces++;
                                surf->visframe = r_framecount;
+#if 1
+                               if (surf->cached_dlight && surf->lightmaptexture != NULL && !r_vertexsurfaces.integer)
+                                       R_BuildLightMap(ent, surf, false); // base lighting changed
+#else
                                if (!r_vertexsurfaces.integer && surf->lightmaptexture != NULL)
                                {
                                        if (surf->cached_dlight
@@ -1485,6 +1509,7 @@ void R_PrepareSurfaces(entity_render_t *ent)
                                                        R_BuildLightMap(ent, surf, true); // only dlights
                                        }
                                }
+#endif
                        }
                }
        }
index d4b1314..ea39f1c 100644 (file)
@@ -2739,6 +2739,59 @@ static void Mod_BuildSurfaceNeighbors (msurface_t *surfaces, int numsurfaces, me
 #endif
 }
 
+void Mod_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
+{
+       int i, j, stylecounts[256], totalcount, remapstyles[256];
+       msurface_t *surf;
+       memset(stylecounts, 0, sizeof(stylecounts));
+       for (i = 0;i < model->nummodelsurfaces;i++)
+       {
+               surf = model->surfaces + model->firstmodelsurface + i;
+               for (j = 0;j < MAXLIGHTMAPS;j++)
+                       stylecounts[surf->styles[j]]++;
+       }
+       totalcount = 0;
+       model->light_styles = 0;
+       for (i = 0;i < 255;i++)
+       {
+               if (stylecounts[i])
+               {
+                       remapstyles[i] = model->light_styles++;
+                       totalcount += stylecounts[i] + 1;
+               }
+       }
+       if (!totalcount)
+               return;
+       model->light_style = Mem_Alloc(mempool, model->light_styles * sizeof(qbyte));
+       model->light_stylevalue = Mem_Alloc(mempool, model->light_styles * sizeof(int));
+       model->light_styleupdatechains = Mem_Alloc(mempool, model->light_styles * sizeof(msurface_t **));
+       model->light_styleupdatechainsbuffer = Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
+       model->light_styles = 0;
+       for (i = 0;i < 255;i++)
+               if (stylecounts[i])
+                       model->light_style[model->light_styles++] = i;
+       j = 0;
+       for (i = 0;i < model->light_styles;i++)
+       {
+               model->light_styleupdatechains[i] = model->light_styleupdatechainsbuffer + j;
+               j += stylecounts[model->light_style[i]] + 1;
+       }
+       for (i = 0;i < model->nummodelsurfaces;i++)
+       {
+               surf = model->surfaces + model->firstmodelsurface + i;
+               for (j = 0;j < MAXLIGHTMAPS;j++)
+                       if (surf->styles[j] != 255)
+                               *model->light_styleupdatechains[remapstyles[surf->styles[j]]]++ = surf;
+       }
+       j = 0;
+       for (i = 0;i < model->light_styles;i++)
+       {
+               *model->light_styleupdatechains[i] = NULL;
+               model->light_styleupdatechains[i] = model->light_styleupdatechainsbuffer + j;
+               j += stylecounts[model->light_style[i]] + 1;
+       }
+}
+
 void Mod_BuildPVSTextureChains(model_t *model)
 {
        int i, j;
@@ -2877,6 +2930,7 @@ void Mod_LoadBrushModel (model_t *mod, void *buffer)
                mod->pvstexturechainsbuffer = Mem_Alloc(originalloadmodel->mempool, (mod->nummodelsurfaces + mod->numtextures) * sizeof(msurface_t *));
                mod->pvstexturechainslength = Mem_Alloc(originalloadmodel->mempool, mod->numtextures * sizeof(int));
                Mod_BuildPVSTextureChains(mod);
+               Mod_BuildLightmapUpdateChains(originalloadmodel->mempool, mod);
                if (mod->nummodelsurfaces)
                {
                        // LordHavoc: calculate bmodel bounding box rather than trusting what it says
index 557c2ce..8870e96 100644 (file)
@@ -186,8 +186,6 @@ typedef struct msurface_s
        mplane_t *plane;
        // SURF_ flags
        int flags;
-       // rendering chain
-       struct msurface_s *texturechain;
 
        // look up in model->surfedges[], negative numbers are backwards edges
        int firstedge;
@@ -221,13 +219,16 @@ typedef struct msurface_s
        vec3_t poly_mins, poly_maxs, poly_center;
 
        // neighboring surfaces (one per poly_numverts)
-       struct msurface_s **neighborsurfaces;
+       //struct msurface_s **neighborsurfaces;
        // currently used only for generating static shadow volumes
        int castshadow;
 
        // these are regenerated every frame
        // lighting info
+       // if this == r_framecount there are dynamic lights on the surface
        int dlightframe;
+       // which dynamic lights are touching this surface
+       // (only access this if dlightframe is current)
        int dlightbits[8];
        // avoid redundent addition of dlights
        int lightframe;
index 1bcd0a1..8f50428 100644 (file)
@@ -214,6 +214,14 @@ typedef struct model_s
        msurface_t              **pvstexturechainsbuffer;
        int                             *pvstexturechainslength;
 
+       // lightmap update chains for light styles
+       int                             light_styles;
+       qbyte                   *light_style;
+       int                             *light_stylevalue;
+       msurface_t              ***light_styleupdatechains;
+       msurface_t              **light_styleupdatechainsbuffer;
+       int                             light_scalebit;
+       float                   light_ambient;
 
        // skin animation info
        animscene_t             *skinscenes; // [numskins]
index 8e65878..86c2a0d 100644 (file)
--- a/r_light.c
+++ b/r_light.c
@@ -285,6 +285,8 @@ loc0:
                {
                        surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0;
                        surf->dlightframe = r_framecount;
+                       if (r_dlightmap.integer)
+                               surf->cached_dlight = true;
                }
                surf->dlightbits[bitindex] |= bit;
        }
@@ -424,6 +426,8 @@ static void R_VisMarkLights (entity_render_t *ent, rdlight_t *rd, int bit, int b
                                                                {
                                                                        surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0;
                                                                        surf->dlightframe = r_framecount;
+                                                                       if (r_dlightmap.integer)
+                                                                               surf->cached_dlight = true;
                                                                }
                                                                surf->dlightbits[bitindex] |= bit;
                                                        }
index 5b951cb..1c9a91a 100644 (file)
--- a/render.h
+++ b/render.h
@@ -99,6 +99,7 @@ extern        cvar_t  r_speeds;
 extern cvar_t  r_fullbright;
 extern cvar_t  r_wateralpha;
 extern cvar_t  r_dynamic;
+extern cvar_t  r_dlightmap;
 
 void R_Init (void);
 void R_RenderView (void); // must set r_refdef first