ASC-CDL 1.2 (no clamp) v1.0

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Contributor: Mads Hagbarth Damsbo
This is an implementation of ASC-CDL, based on the 1.2 specification. Unlike the Nuke OCIOCDLTransform, this node will not clip blacks nor warp colors.
12.0, 11.3, 11.2, 11.1, 11.0, 10.5, 10.0, 9.0, 8.0 or later
Linux, Mac, Windows
22 Jan 2020

This node was created to have a Nuke ASC-CDL node based on the official ASC-CDL 1.2 Specifications and the additions made for the additional NO_CLAMP option. Not only to add compatibility with other software and hardware, but also to avoid destroying the image by clamping values.

The build-in Nuke OCIOCDLTransform node will clip/clamp blacks when a power function is applied, thus not only destroying the image but also makes the operation irreversible. This also means that if someone have negative values in their offset input you will clamp the image. The OCIOCDLTransform will also work incorrectly with saturation slider if negative values are preset in the image.

This is fixed using the example from the CLF 3.0 Specification where a power function is simply not applied when dealing with negative values.


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