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In Texture Paint, Soften Brush and Smear Brush makes Blender freeze

This issue came to my notice today. In v 3.0 the default of Stroke Space of 3% cause blender to almost freeze up for me, whilest in v 2.93 the performance is … tolerable. The issue link is from someone with a superior platform, so I think it’s worth considering whether there is some other issue here. For example: perhaps too many calculations were added to version 3.0?

At the least perhaps the default (3%) should be reconsidered.

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This is still an issue! I am using Blender 3.3.1

I have since received that advice that I should disable some modifiers while in TP mode, and indeed this has solved the performance/lockup problem. Try it and let us know.