[Bf-committers] Multi Layer EXR issues

[Ton Roosendaal]

Hi,

> Had some discussion on IRC on how to handle multilayer passes in the
> image node. In general the render layer/render pass separation from
> Blender's render output is meaningless in image files (it just
> translates to a "render_layer.render_pass" naming scheme)

If you setup your scenes to render in passes and layers, the names you give to this are meaningful and should be allowed to use. I don't understand why such a feature gets dropped?

-Ton-

------------------------------------------------------------------------
Ton Roosendaal  Blender Foundation   ton at blender.org    www.blender.org
Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands

On 18 May, 2012, at 11:42, Lukas Tönne wrote:

> I'm sorry this turned out so chaotic (small changes causing a wave of
> other problems over the release period).
> 
> Had some discussion on IRC on how to handle multilayer passes in the
> image node. In general the render layer/render pass separation from
> Blender's render output is meaningless in image files (it just
> translates to a "render_layer.render_pass" naming scheme), so it would
> be preferable to have image layer names flattened instead of trying to
> force generic image layers into the Blender naming scheme. However, as
> your example demonstrates, showing all the existing image layers at
> once is not a viable option ...
> 
> Other programs solves this by allowing a selection of each individual
> image layer (as opposed to the render layer groups in Blender), which
> is a more general solution than what the image node does. But until we
> have a good UI for this kind of thing (e.g. right-click menu +
> scrolling on nodes) it's probably best to revert to the previous
> behavior (done in r46542).
> 
> About the messed up image passes: In my tests after the r46542 commit
> it seems to work correctly (generating EXR file with several passes in
> 2.62 and loading as image node trunk). Could you please test this with
> your own files and if it still doesn't work maybe provide an example?
> 
> On Thu, May 17, 2012 at 12:37 PM, Bartek Skorupa
> <bartekskorupa at bartekskorupa.com> wrote:
>> Sorry, in r46714 - no RenderLayers show up. All passes from all render
>> layers grouped together.
>> This is how my "Input Image" node looks like:
>> 
>> http://www.pasteall.org/pic/31959
>> 
>> Bartek Skorupa
>> 
>> www.bartekskorupa.com
>> 
>> 
>> 
>> On 2012-05-17, at 12:27, Bartek Skorupa wrote:
>> 
>>> Issue:
>>> 
>>> In official Blender 2.63a:
>>> Opened MultiLayerEXR created in blender 2.62 and passes are
>>> completely messed up.
>>> Color pass from one render layer shows AO from another render layer.
>>> AO pass outputs Normal Pass from different layer etc.
>>> 
>>> I tried to re-render Multilayer file (blend created in 2.62) and it
>>> gave me different results, but messed up as well.
>>> Tried the same in build of today: r46714. Same results.
>>> 
>>> 
>>> Bartek Skorupa
>>> 
>>> www.bartekskorupa.com
>>> 
>>> 
>>> 
>>> _______________________________________________
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>>> Bf-committers at blender.org
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>> 
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