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proper FileTransform usage
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#1450
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proper FileTransform usage
Paul Miller <pa...@...>
#1450
I need advice on the correct way to use a LUT file transform in an OCIO processor. My results when using a FileTransform look different than in Nuke, with whites appearing more subdued using the test LUT I have. Am I doing this right?
My normal OCIO processor looks like this:
DisplayTransformRcPtr transform = DisplayTransform::Create();
transform->setInputColorSpaceName(colorSpaceName);
transform->setDisplay(displayName);
transform->setView(lookName);
transform->setLinearCC(gainTransform);
transform->setChannelView(swizzle);
transform->setDisplayCC(exposureTransform);
processor = config->getProcessor(transform);
However, I also allow bringing in an external LUT file, and I use it like this in lieu of the DisplayTransform:
FileTransformRcPtr fileTransform = FileTransform::Create();
fileTransform->setSrc(path);
fileTransform->setInterpolation(OCIO::INTERP_LINEAR);
GroupTransformRcPtr group = GroupTransform::Create();
group->push_back(gainTransform);
group->push_back(fileTransform);
group->push_back(exposureTransform);
processor = config->getProcessor(group);
I'm using the same display shader for both.
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