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Cryptomatte node for SD?

Engaged ,
Jun 19, 2022 Jun 19, 2022

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Wonder if anyone ever managed to do a node that extract masks  from a cryptomatte exr  rendered in 3d soft ?       Is it at all possible in SD? 

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Participant ,
Jul 03, 2022 Jul 03, 2022

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Unless I misunderstand, can you not use one or more color to mask nodes to grab the matte you want?

 

Mark_Edwards_0-1656913984144.png

 

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Community Expert ,
Jul 04, 2022 Jul 04, 2022

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The cryptomatte format uses both coloured masks and metadata to identify the masks. The coloured part is easy within Designer, I have not seen anything that would access the metadata.

 

Dave

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Engaged ,
Jul 07, 2022 Jul 07, 2022

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What I want is to get a proper masks with  accurate edges and gray values , not just  binary,    only cryptomatte exrs are providing.    For a smoke  for example .  Is  matadata necessary for this ?   Sorry, I don't undestand well enought how it works in compositing soft.   

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