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From: | Jim Hourihan |
Subject: | Re: [Openexr-user] EXR layer naming conventions |
Date: | Fri, 29 Jun 2007 15:37:58 -0700 |
- For consistency, "<channel>" should, if possible, be chosen from the list of main channels: R/G/B/A/Z/Y/RY/BY. This works for layers that represent colors. Writers should be strict about using the recommended channel suffixes,but readers should recognize other reasonable versions, like r/g/b/a, red/green/blue/alpha, etc..
This is what I was hoping to avoid in my code but cannot. Obviously if you throw non-english languages possibly represented as UTF-8 or possibly transliterated to ASCII in the mix you've got a lot of permutations to deal with.
I think nuke's behavior is ideal with regard to layer/channel naming.Another possibility is to define a header attribute that provides semantic information.
-Jim
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