added r_polygonoffset_submodel_offset support in submodel shadow

rendering, fixing a bug that kept dlights from affecting submodels

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@7425 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/gl_rsurf.c b/gl_rsurf.c
index db9cc5459c272b2d191e0e9f6875d942d39f5b2e..0333beff4a4f9285e82be796718dd1a6ca91360f 100644 (file)
--- a/gl_rsurf.c
+++ b/gl_rsurf.c
@@ -930,6 +930,8 @@ void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigi
        r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow, false, false, true);
 }
 
+extern cvar_t r_polygonoffset_submodel_factor;
+extern cvar_t r_polygonoffset_submodel_offset;
 void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int modelnumsurfaces, const int *modelsurfacelist, const vec3_t lightmins, const vec3_t lightmaxs)
 {
        model_t *model = ent->model;
@@ -940,6 +942,7 @@ void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin,
        if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
                return;
        R_UpdateAllTextureInfo(ent);
+       GL_PolygonOffset(r_refdef.shadowpolygonfactor + r_polygonoffset_submodel_factor.value, r_refdef.shadowpolygonoffset + r_polygonoffset_submodel_offset.value);CHECKGLERROR
        if (model->brush.shadowmesh)
        {
                R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
@@ -968,6 +971,7 @@ void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin,
                }
                R_Shadow_VolumeFromList(model->surfmesh.num_vertices, model->surfmesh.num_triangles, rsurface.vertex3f, model->surfmesh.data_element3i, model->surfmesh.data_neighbor3i, relativelightorigin, relativelightdirection, projectdistance, numshadowmark, shadowmarklist);
        }
+       GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);CHECKGLERROR
 }
 
 #define BATCHSIZE 1024