#define MATERIALFLAG_NORTLIGHT 134217728
// alphagen vertex
#define MATERIALFLAG_ALPHAGEN_VERTEX 268435456
+// use occlusion buffer for corona
+#define MATERIALFLAG_OCCLUDE 536870912
// combined mask of all attributes that require depth sorted rendering
#define MATERIALFLAGMASK_DEPTHSORTED (MATERIALFLAG_BLENDED | MATERIALFLAG_NODEPTHTEST)
// combined mask of all attributes that cause some sort of transparency