ccab8005f6
The Legacy Cryptomatte node doesn't work in GPU execution mode if Precision is set to Auto. That's because the colors picked from the Pick layer might be in half precision and thus will not match the colors in the Cryptomatte layers. This is due to the compositor using the context's precision for Viewer outputs as opposed to the precision of the image that actually needs to be viewed in the Viewer node. To fix this, we set the Viewer node precision to be the precision of its input, that way, the Cryptomatte pick layer will be output in full precision as intended. Pull Request: https://projects.blender.org/blender/blender/pulls/128495
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