[Openexr-devel] Stereo (multi-view) pipeline

[Ton Roosendaal]

Hi all,

There's a project in Blender to get (at last ;) good stereo support integrated 
for the render/composite/display pipeline.

Obviously we'll try to align well to the proposed OpenEXR spec of it.
http://www.openexr.com/MultiViewOpenEXR.pdf

My question is why the authors proposed to insert the view 'layers' on the 
lowest level in the structure. Was this for compatibility, or other reasons?

In Blender internally, we use a list of "render layers" with a list of "passes" 
which each have the channel buffers. The paper proposes to then add views as 
follows:

   render_result -> layers -> passes -> views -> channels

An other way would be to move views to the top level:

   render_result -> views -> layers -> passes -> channels

It probably doesn't matter much (exr file read can map to how we store it 
internally), but I'd be very interested to hear if there's people here who did 
a stereo migration for their pipelines and can share some experience.

Thanks,

-Ton-

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Ton Roosendaal  Blender Foundation   address@hidden    www.blender.org
Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands