Uploaded September 2025 | Updated September 2026, 23 hours ago

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Graham will show you how to set up custom RGB mattes which can be a useful workaround in instances where cryptomatte is not providing masks for objects that are behind glass.
@Autodesk

Download the assets here: thefoundry.s3.us-east-1.amazonaws.com/products/katana/assets/Graham_Cunningham/Practical_Lighting_Techniques__Course_Files.zip

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