When using multilayer EXR files as sequence input (node editor or texture) the images are incorrectly displayed. Incorrectly means in this case too dark.
From my experiments it seems that a gamma correction is missing here, because a gamma of 0.45 gives almost a correct display again.
When switching the same image mode from sequence to file the image gets displayed correctly.
See attached zip file ( I could not provide a packed blend file as this is currently broken -> see bug report 24204 )
Steps to reproduce:
- Extract the zip file into an empty directory
- open the blend file
- You will see the node editor with two file input nodes
- the first node references the file 0001.exr as sequence of 1 frame
- the second node references the file 0001.exr as image file
- both input nodes have a viewer connected where you can see immediately the problem.
- Additionally a gamma node is there to demonstrate that the gamma correction almost solves the display problem.
Remarks:
I have tried png, jpg and openexr as input file format and so far only the multilayer exr files exhibit this behaviour.
Description
Event Timeline
Multilayer EXR makes sense only in the compositor, everywhere else there's only simple handling of the layers - using multilayer in these other cases doesn't really make sense, IMO.
I agree, that it may not have a big practical impact.
The reason I stumbled across this bug, was during preparation of a blend file for bug report 24205, where i wanted to create a packed blend file to illustrate the display problem with multilayer exr files in sequence mode ( see http://projects.blender.org/tracker/index.php?func=detail&aid=24205&group_id=9&atid=498
Disregard my last comment. I was thinking I was responding to bug 24204, because of your remark.
This bug report shows specifically a problem when using multilayer exr in sequence mode in the compositor. So I do not really understand your comment.
Sorry, for some reason I was entirely misreading the report, thinking you meant sequencer.