K_NormalizeChannel (Compatible with IFFS 2017.0.0 and up)
Normalize an input based on a single channel. Useful when you need to normalize a 32-bit image so to avoid banding when creating mattes from position passes.
Shader written by: Kyle Obley (kyle.obley _at_ gmail.com)
Version notes
Updated to work in 2025+
Older versions that shader
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