+ }
+}
+
+void R_DrawSurfaces(entity_render_t *ent, int type, msurface_t ***chains)
+{
+ int i;
+ texture_t *t;
+ if (ent->model == NULL)
+ return;
+ R_Mesh_Matrix(&ent->matrix);
+ for (i = 0, t = ent->model->brushq1.textures;i < ent->model->brushq1.numtextures;i++, t++)
+ if (t->shader->shaderfunc[type] && t->currentframe && chains[i] != NULL)
+ t->shader->shaderfunc[type](ent, t->currentframe, chains[i]);
+}
+
+static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
+{
+ int i;
+ float *v;
+ rmeshstate_t m;
+ const entity_render_t *ent = calldata1;
+ const mportal_t *portal = ent->model->brushq1.portals + calldata2;
+ GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ GL_DepthMask(false);
+ GL_DepthTest(true);
+ R_Mesh_Matrix(&ent->matrix);
+ GL_VertexPointer(varray_vertex3f);
+
+ memset(&m, 0, sizeof(m));
+ R_Mesh_State_Texture(&m);
+
+ i = portal - ent->model->brushq1.portals;
+ GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_colorscale,
+ ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_colorscale,
+ ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_colorscale,
+ 0.125f);
+ if (PlaneDiff(r_origin, (&portal->plane)) > 0)
+ {
+ for (i = portal->numpoints - 1, v = varray_vertex3f;i >= 0;i--, v += 3)
+ VectorCopy(portal->points[i].position, v);
+ }
+ else
+ for (i = 0, v = varray_vertex3f;i < portal->numpoints;i++, v += 3)
+ VectorCopy(portal->points[i].position, v);
+ R_Mesh_Draw(portal->numpoints, portal->numpoints - 2, polygonelements);
+}
+
+// LordHavoc: this is just a nice debugging tool, very slow
+static void R_DrawPortals(entity_render_t *ent)
+{
+ int i;
+ mportal_t *portal, *endportal;
+ float temp[3], center[3], f;
+ if (ent->model == NULL)
+ return;
+ for (portal = ent->model->brushq1.portals, endportal = portal + ent->model->brushq1.numportals;portal < endportal;portal++)
+ {
+ if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)