Was watching "ZBrush 2018 - ZBrush Guides: Make it Happen in ZBrush! with Pablo Muñoz Gómez - Episode 3". He showed how to smooth without shrinking by +shift, +LMB, +ctrl, -shift. Nice feature, though as far away from being intuitive as it gets.
Say I found this combination somehow and trying it out. If I would test it on slightly sculpted sphere, I would not be able to tell the difference from default smooth behavior.
It was something similar for polish or trim to stay on averaged surface without crossing over creased edges.
So I was wondering if there is a tutorial/article/list covering these hotkey-brush-modifiers?
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A new Smoothing Algorithm
The Smooth brush includes an alternative algorithm, added to create a better result on the poles of the topology of the model (when a vertex shares 3, 5, 7, etc edges).
To access this new smoothing mode: