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usability - the flat brush is awkward to use #32

Open df-0 opened 6 years ago

df-0 commented 6 years ago

I'm mainly using the flat brush, and trying to align it to what I'm painting since I'm trying to get smooth, clean shapes, but the angle of the brush relative to your hand means you have to hold the tool perpendicular to the "paper", like a staple gun, which makes it really awkward to paint (imho). If it was tilted forward 45 degrees or something I think it would be more natural?

df-0 commented 6 years ago

Hmmm been painting with this brush quite a bit (further down the pipeline I may add lighting and/or reflections, and it's the only brush that gives 'realistic' surface normals) and it's really hard to use. And I don't think that's just me being terrible at painting :-) It took me a while to realise that the angle of your hand doesn't directly control the angle of the stroke, it's some combination of starting angle and direction of movement, and the brush itself doesn't give you feeback - but whatever it is, it can cause really weird behaviour. For example, if you draw a circle "lying flat on the ground" in one stroke, the stroke will twist it twice, creating a sort of double moebius strip, which is absolutely not what I was trying to draw (in this case, a coffee mug)! Even if you paint in multiple sections to try to work around this, as soon as you get near the parts of the circle where left/right direction changes, it flips uncontrollably and unpredictably, meaning you have to draw the circle in ten or so separate sections. Is there some way this could behave better? (Maybe something like maya's euler filter https://en.wikipedia.org/wiki/Euler_filter for example? just a random idea, I don't know!) Drawing circles in VR is hard, I'm getting the hang of it with the sphere brush, I'm still far from able to do it with the flat one though :-(

df-0 commented 6 years ago

also - my personal opinion on this is that I would prefer to have it much thinner, looking at Nick's city scene I don't think you can even paint some of those flat shapes now - was it thinner before? Guess I can try making custom brushes once that process is documented tho :-)