Is there a reason why material and object ID masks in Cycles render layers look like they were taken from a really low sample render no matter what the samples used? It’s especially noticeable with scenes with Cycles motion blur.
Here’s a view of an object ID mask on the cube with 10 samples:
And here’s a view of the same ID mask with 100 samples. It’s identical.
Compare that to the alpha of a layer with only the cube at only 10 samples.
Is this a bug or just a limitation of how Cycles works right now? If it’s a bug I’ll submit it, but if it’s not really a bug and is something that will improve with development I probably shouldn’t submit it.