+#define MATERIALFLAG_MODELLIGHT_DIRECTIONAL 0x00400000
+// causes RSurf_GetCurrentTexture to leave alone certain fields
+#define MATERIALFLAG_CUSTOMSURFACE 0x00800000
+// causes MATERIALFLAG_BLENDED to render a depth pass before rendering, hiding backfaces and other hidden geometry
+#define MATERIALFLAG_TRANSDEPTH 0x01000000
+// like refraction, but doesn't distort etc.
+#define MATERIALFLAG_CAMERA 0x02000000
+// disable rtlight on surface, use R_LightPoint instead
+#define MATERIALFLAG_NORTLIGHT 0x04000000
+// alphagen vertex
+#define MATERIALFLAG_ALPHAGEN_VERTEX 0x08000000
+// use occlusion buffer for corona
+#define MATERIALFLAG_OCCLUDE 0x10000000