-void R_Model_Alias_DrawFakeShadow (entity_render_t *ent)
-{
- int i, meshnum;
- aliasmesh_t *mesh;
- aliasskin_t *skin;
- rmeshstate_t m;
- float *v, planenormal[3], planedist, dist, projection[3], floororigin[3], surfnormal[3], lightdirection[3], v2[3];
-
- if ((ent->effects & EF_ADDITIVE) || ent->alpha < 1)
- return;
-
- lightdirection[0] = 0.5;
- lightdirection[1] = 0.2;
- lightdirection[2] = -1;
- VectorNormalizeFast(lightdirection);
-
- VectorMA(ent->origin, 65536.0f, lightdirection, v2);
- if (CL_TraceLine(ent->origin, v2, floororigin, surfnormal, 0, false, NULL) == 1)
- return;
-
- R_Mesh_Matrix(&ent->matrix);
-
- memset(&m, 0, sizeof(m));
- m.blendfunc1 = GL_SRC_ALPHA;
- m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
- R_Mesh_State(&m);
- GL_Color(0, 0, 0, 0.5);
-
- // put a light direction in the entity's coordinate space
- Matrix4x4_Transform3x3(&ent->inversematrix, lightdirection, projection);
- VectorNormalizeFast(projection);
-
- // put the plane's normal in the entity's coordinate space
- Matrix4x4_Transform3x3(&ent->inversematrix, surfnormal, planenormal);
- VectorNormalizeFast(planenormal);
-
- // put the plane's distance in the entity's coordinate space
- VectorSubtract(floororigin, ent->origin, floororigin);
- planedist = DotProduct(floororigin, surfnormal) + 2;
-
- dist = -1.0f / DotProduct(projection, planenormal);
- VectorScale(projection, dist, projection);
- for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++)
- {
- skin = R_FetchAliasSkin(ent, mesh);
- if (skin->flags & ALIASSKIN_TRANSPARENT)
- continue;
- R_Mesh_GetSpace(mesh->num_vertices);
- R_Model_Alias_GetMesh_Vertex3f(ent, mesh, varray_vertex3f, NULL, NULL, NULL);
- for (i = 0, v = varray_vertex3f;i < mesh->num_vertices;i++, v += 3)
- {
- dist = DotProduct(v, planenormal) - planedist;
- if (dist > 0)
- VectorMA(v, dist, projection, v);
- }
- c_alias_polys += mesh->num_triangles;
- R_Mesh_Draw(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
- }
-}
-