What does strength in brush options do?

[hulmanen]

Edit: I spent the day figuring out a way to get what I think I want, and made a feature request.

Brush engine: Is it possible to have a pattern blending mode like this?

I’ve been messing around with patterns in the brush engine and find I’d like to have a way to control the pattern’s contribution to the brush with pen pressure. So that at 0 pressure, no pattern would be applied to the stroke, only the brush tip as defined in the brush. Also, I’d like the pattern to be dithered in rather than blended with multiply or subtract, since those don’t look very nice on their own IMO. I’ve made a mockup of what I mean, including my proposal for how the math could work,…