A buffer containing sharpness values to be applied to points during surface subdivision.
- iOS 9.0+
- macOS 10.11+
- Mac Catalyst 13.0+
- tvOS 9.0+
- Model I/O
Each entry in this buffer corresponds to an entry in the
vertex buffer that identifies a crease. The value of each entry determines the amount of smoothing to apply to the crease during surface subdivision—a value of zero completely smooths out the point, and a value of one leaves the point completely sharp.
Because the number of entries in this buffer is likely to be different than the number of entries in any other vertex buffer, it shouldn’t be interleaved with other data in the mesh.