A Boolean value that determines whether blending is enabled.
- iOS 8.0+
- macOS 10.11+
- tvOS 9.0+
The default value is
false, meaning blending is disabled and pixel values are unaffected by blending. Disabled blending is effectively the same as the
MTLBlend blend operation with a source blend factor of
1 and a destination blend factor of
0 for both RGB and alpha.
If the value is
true, blending is enabled and the blend descriptor property values are used to determine how source and destination color values are combined.