// (and realize that the whole polygon assembly orients itself to face
// the viewer)
+ R_Mesh_GetSpace(12);
+
// polygon 1, verts 0-3
VectorScale(right, r_lightningbeam_thickness.value, offset);
R_CalcLightningBeamPolygonVertices(varray_vertex, varray_texcoord[0], b->start, b->end, offset, t1, t2);