#define MATERIALFLAG_CUSTOMSURFACE 16777216
// causes MATERIALFLAG_BLENDED to render a depth pass before rendering, hiding backfaces and other hidden geometry
#define MATERIALFLAG_TRANSDEPTH 33554432
+// like refraction, but doesn't distort etc.
+#define MATERIALFLAG_CAMERA 67108864
// 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