Hi guys, I've been doing a few tests and come upon a weird behavior.
If I want to output 2D images with proper holdout matte from deep images, I get different results from using a DeepHoldout node vs using the holdout option in the DeepMerge node connected to a DeepToImage node. The Alpha of an image coming from a DeepMerge with a houldout operation is full of noise in the edges, mostly visible in motion blurred images, where the alpha generated from a DeepHoldout node is much cleaner. The DeepHoldout node though takes about twice as long to process then the DeepMerge and DeepToImage combination. Is this behavior normal? What's the difference between the two approaches and why is the DeepHoldout process so much longer then the DeepMerge process? I'm using Nuke 7.0v5 with Exr 2.0 deep images. ------------------------ Mathieu Leclaire Director of R&D Hybride Technologies, a Ubisoft division
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