d9192aaa6d
This is done based on the render sample count so that it doesn't impact sampling quality. It's similar in spirit to the adaptive table size in D16561, but in this case for performance rather than memory usage. Differential Revision: https://developer.blender.org/D16726
Sphinx Warnings
: WARNING: Could not obtain image size. :scale: option is ignored.
Note the preview is not accurate and warnings may not indicate real issues.
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