Cryptomatte was developed by Psyop Studios for use in production pipelines. The current version is Cryptomatte 1.2.0
The output of the sample filter allows artists to (mostly) automatically generate IDs for use in a compositing package such as Nuke for selecting and masking operations to specific objects or material selections. You will find example files in the Katana and Maya pages on Cryptomatte output. Below are object and material results of Cryptomatte output on a simple scene with a teapot.
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