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Compositor - ID Mask Anti Aliasing not working
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Description

iMac Retina Late 2015
OS X El Capitan

Blender 2.78a
Worked: 2.76

Anti Aliasing in the ID Mask Node doesn't work anymore.

Left side: Blender 2.78a Right side: Blender 2.76

Details

Type
Bug

Event Timeline

Sergey Sharybin (sergey) triaged this task as Needs Information from User priority.

This was an intentional change in rBfeb574f. The issue was that adding two masks did not give proper full coverage of the image causing compositing artifacts.

However, here it seems there is no AA at all (hard to tell from just seeing the image). It might or might not be a real issue here.

This is why it is always important to attach .blend file which demonstrates the issue.

Here's the blend file

Sergey Sharybin (sergey) raised the priority of this task from Needs Information from User to Normal.

Ok, there is AA in the mask, but it seems to be not enough to give smooth edges. Will try to tweak some parameters to solve both of this problems..