Problem summary
OCIOCDLTransform node creates artifacts when transforming images with less than three channels
Customer reported version
nuke.13.0v1
Customer reported platform
n_a_linux
Steps to reproduce
1) Open the attached Nuke script, OCIOCDLTransform_bug.nk
2) Compare the different end Shuffle nodes, 1 and 2 channel OCIOCDLTransform nodes are creating artefacts:
*Note, in earlier Nuke versions you need to set the working space knob to linear to see the issue clearly, and decrease the viewer gain/gamma to see the single channel issue.
Expected behaviour
For the OCIOCDLTransform node to work with different numbers of channels
Actual behaviour
It only works correctly if there are 3 or more channels
Workaround
Unknown.
Reproduced by support
This bug has been reproduced in:
Nuke 13.0v3 - Windows 10, CentOS 7.5, macOS Big Sur
Nuke 12.0v1 - Windows 10
Nuke 11.0v1 - Windows 10
Nuke 10.0v1 - Windows 10
Nuke 9.0v1 - Windows 10, CentOS 7.5, macOS Big Sur
Earliest version tested
Nuke 9.0v1 - This issue appears to be in all versions of the product
