Implement per-shot LUT in rv package

RV
2

Hey Ashish,

Thank you for messaging us!

If you take a look at the Starting With OCIO guide, there’s a starter script called rv_ocio_setup_sample.py. If you download it, you can see how to set context per-node.

For example, setting up the Look pipe group:

    elif (nodeType == "RVLookPipelineGroup"):
        # If our config has a Look named shot_specific_look and uses the
        # environment/context variable "$SHOT" to locate any required
        # files on disk, then this is what that would likely look like
        result = [
            {"nodeType"   : "OCIOLook",
             "context"    : {"SHOT" : os.environ.get("SHOT","def123")}
             "properties" : {
                 "ocio.function"     : "look",
                 "ocio.inColorSpace" : OCIO.Constants.ROLE_SCENE_LINEAR,
                 "ocio_look.look"    : "shot_specific_look"}}]

Note that context here is grabbed from the environment variable that is set:

"context"    : {"SHOT" : os.environ.get("SHOT","def123")}

However, instead of the environment variable, you can set up a function to parse your metadata and set the context.

Hope this makes sense!

Thanks,
Alexa

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