clamping difference between OCIO 1 and 2?
We'd like to investigate the issue you found. Could you send us the config or the shader that it produced?
(Feel free to use Slack, if it's easier.)
I noticed that using linear data with an sRGB view transform, if I adjust the exposure/gain using a Matrix/Offset transform, there seems to be clamping in OCIO 2 that wasn't present in 1. It doesn't clamp if I use a null/raw view transform. (see attached images).
This is using the default GPU processor.
Is this expected behavior?
code basically boils down to:
OCIO::DisplayTransformRcPtr transform = OCIO::DisplayTransform::Create();
OCIO::MatrixTransformRcPtr gainTransform = OCIO::MatrixTransform::Create();
// compute gain matrix/offset
OCIO::ConstProcessorRcPtr processor = config->getProcessor(transform);
I am still using CreateLegacyShaderDesc. Could it be that some of this math has moved into the LUT, and it's clamping there?