The edge mode to use when texture reads stray off the edge of the primary source image.
- iOS 9.0+
- macOS 10.13+
- Mac Catalyst 13.0+
- tvOS 9.0+
- Metal Performance Shaders
Most kernel objects can read off the edge of a source image. This can happen because of a negative offset property, because the
offset + clip is larger than the source image, or because the filter uses neighboring pixels in its calculations (e.g. convolution filters).