A exr2.0 deep image has an extra two 32-bit Z samples per deep sample in 
additional to the color channels - are you taking that into consideration when 
you wrote the first non-deep image?


On Jan 10, 2013, at 9:48 AM, Patrick Heinen wrote:

> Hi everyone,
> 
> I just stumbled across a little thing that got me wondering. What I'am doing 
> is to take a nonvolumetric deep image and apply a DeepToImage to basically 
> flatten it. Now I use that output and render it with a standard write node as 
> uncompressed exr 16bit. Secondly I use the output of the DeepToImage and plug 
> it into a DeepFromImage to get a deep image with a single sample per pixel. I 
> render that with a DeepWrite as uncompressed exr 16bit. Both are set to 
> render all channels, so that they contain the exact same information. My 
> expectation was that they should have the same or at least approximately the 
> same file size. However the deep exr is roundabout 1.5 times bigger than the 
> normal exr.
> Is there anything I'm missing? Is there maybe some documentation on exr 2.0 
> somewhere, like the technical introduction paper but for exr 2.0?
> 
> cheers Patrick
> _______________________________________________
> Nuke-users mailing list
> [email protected], http://forums.thefoundry.co.uk/
> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users

_______________________________________________
Nuke-users mailing list
[email protected], http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users

Reply via email to