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Blur Node Breaks on High Scene Referred Values
Closed, InvalidPublic

Description

System Information
Debain Testing

Blender Version
Broken: master

Short description of error
Scene referred higher values seem to cause breakage in tiling code? Yields extremely blocky looking series of tiles.

Example attached, screenshot here http://pasteall.org/pic/show.php?id=39d216c1739740d566d45fdb239c2564

Exact steps for others to reproduce the error

Details

Type
Bug

Event Timeline

Philipp Oeser (lichtwerk) triaged this task as Confirmed, Medium priority.

Note that Fast Gaussian doesnt suffer so badly...
Dont know the Compositor well, @Jeroen Bakker (jbakker): mind having a look?

Hi Troy, sorry for the late reply.

It doesn't seem to be related to the tiling. Even when tiling is set to a very small (32) or a very large size (1024) the same result is created. The size of the 'faulty' area will change when the blur size is changed.

What actually happens is that values average to high values when the extreme value of 200000 is taken into account.

Perhaps we need to invest in better blurring operations.

Jeroen Bakker (jbakker) closed this task as Invalid.Thu, May 23, 1:33 PM