The amount of saturation enhancement to apply during tone mapping.
- iOS 9.0+
- macOS 10.11+
- tvOS 9.0+
- Model I/O
To render a sky texture, Model I/O first simulates the colors visible in the sky at different directions and then applies tone mapping to fit the resulting colors into the range of displayable values. As part of this process, Model I/O uses this property to scale the color saturation of the texture image.