#define IF_BACKFACE_CULLING(X)
#endif
+/*
+ * BLENDING
+ * If enabled, the blending function Crgb = (1 - Sa)Drgb + (Sa)Srgb is
+ * applied when determing color on the raster.
+ */
+#if BLENDING
+#define IF_BLENDING(X) X
+#else
+#define IF_BLENDING(X)
+#endif
+
/*
* CLIPPING
* If enabled, triangles will be not be drawn if they are entirely outside of