some optimizations to model decals

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@9465 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/gl_rmain.c b/gl_rmain.c
index d7ab26391564bece7a92026a1e41aadc73283162..34d05c0cb08f1ed4da81dcb547f5f470d718c909 100644 (file)
--- a/gl_rmain.c
+++ b/gl_rmain.c
@@ -8272,6 +8272,7 @@ void R_DecalSystem_SplatEntity(entity_render_t *ent, const vec3_t worldorigin, c
        const msurface_t *surface;
        const msurface_t *surfaces;
        const int *surfacelist;
+       const texture_t *texture;
        int numvertices;
        int numtriangles;
        int numsurfacelist;
@@ -8383,7 +8384,12 @@ void R_DecalSystem_SplatEntity(entity_render_t *ent, const vec3_t worldorigin, c
        {
                surface = surfaces + surfacelist[surfacelistindex];
                // skip transparent surfaces
-               if ((surface->texture->surfaceflags & Q3SURFACEFLAG_NOMARKS) || surface->texture->currentalpha < 1 || (surface->texture->currentmaterialflags & (MATERIALFLAG_BLENDED | MATERIALFLAG_NODEPTHTEST | MATERIALFLAG_SKY | MATERIALFLAG_SHORTDEPTHRANGE | MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION)))
+               texture = surface->texture;
+               if (texture->currentmaterialflags & (MATERIALFLAG_BLENDED | MATERIALFLAG_NODEPTHTEST | MATERIALFLAG_SKY | MATERIALFLAG_SHORTDEPTHRANGE | MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
+                       continue;
+               if (texture->surfaceflags & Q3SURFACEFLAG_NOMARKS)
+                       continue;
+               if (texture->currentalpha < 1)
                        continue;
                if (!dynamic && !BoxesOverlap(surface->mins, surface->maxs, localmins, localmaxs))
                        continue;
@@ -8403,10 +8409,20 @@ void R_DecalSystem_SplatEntity(entity_render_t *ent, const vec3_t worldorigin, c
                        // clip by each of the box planes formed from the projection matrix
                        // if anything survives, we emit the decal
                        numpoints = PolygonF_Clip(3        , v[0]        , planes[0][0], planes[0][1], planes[0][2], planes[0][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
+                       if (numpoints < 3)
+                               continue;
                        numpoints = PolygonF_Clip(numpoints, points[1][0], planes[1][0], planes[1][1], planes[1][2], planes[1][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[0][0]);
+                       if (numpoints < 3)
+                               continue;
                        numpoints = PolygonF_Clip(numpoints, points[0][0], planes[2][0], planes[2][1], planes[2][2], planes[2][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
+                       if (numpoints < 3)
+                               continue;
                        numpoints = PolygonF_Clip(numpoints, points[1][0], planes[3][0], planes[3][1], planes[3][2], planes[3][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[0][0]);
+                       if (numpoints < 3)
+                               continue;
                        numpoints = PolygonF_Clip(numpoints, points[0][0], planes[4][0], planes[4][1], planes[4][2], planes[4][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
+                       if (numpoints < 3)
+                               continue;
                        numpoints = PolygonF_Clip(numpoints, points[1][0], planes[5][0], planes[5][1], planes[5][2], planes[5][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), v[0]);
                        if (numpoints < 3)
                                continue;