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Generating a Display Referred Space (DRS) to Scene Referred Space (SRS) color transform


Paul Chambers writes:

What this post lacks in Blender it makes up for in spreadsheets. Yes, we'll get back to Blender soon, but first spreadsheets! A follow up to the most recent post in my series on visual effects on a budget, this post walks through a process to create a unique LUT for your digital camera to be later used with Blender's implementation of OCIO to prepare video shot with your camera for compositing with rendered CG elements.

From the post:

Working in SRS will help you create more convincing, more accurate CG integration with background plates and remove much of the compositing guesswork of a DRS workflow. In this post we’ll take the data we captured from our camera and use some math to build a nice smooth response curve to generate a 1D LUT (Look Up Table) that will be used as a color transform in our favorite 3D package or compositor.


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