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Found 1 result

  1. Juraj
    Hello, I have been trying some volumetrics with Arnold and they seem to work really fast. But I have an issue with recreating Beauty pass in compositing. Arnold can output 4 AOVs for volumes: volume (beauty), volume_direct, volume_indirect and volume_opacity. In my scene I am not using indirect lighting for volumes so volume_indirect is empty. Therefore volume (beauty) = volume_direct. But I don't know how to composite volume and volume_opacity AOVs as they both have RGB data. If volume_opacity had only one channel I could maybe set it as alpha for volume AOV. All AOVs in Arnold should be composited with additive operation (plus or screen) but it doesn't seem to work for volumes. Any ideas? Thanks
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