AirBrushTool: attempting to get a smoother, better performing Airbrush

HaikuArchives / ArtPaint

ArtPaint is a painting and image processing program.

https://haikuarchives.github.io/ArtPaint/

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AirBrushTool: attempting to get a smoother, better performing Airbrush #645

Closed dsizzle closed 10 months ago

dsizzle commented 11 months ago

only calculate 1/4 of the brush and draw 4 pixels at once
use LINEAR_INTERPOLATION in the CoordinateReader to get a smoother line
adjusted linear interpolation to only get 1/10th of the coordinates
remove snooze

@humdingerb can you give this a try to see if it's a better Airbrush experience? It works a lot better on my end but I'm also not seeing what you're seeing, so this is just a more general attempt to improve the Airbrush feeling.

humdingerb commented 11 months ago

Nice. With this change it's again as fast as before!

dsizzle commented 11 months ago

Ok, I cleaned up the change a bit - please re-test and if it still behaves well I can merge it.

EDIT: also I changed LINEAR_INTERPOLATION to NO_INTERPOLATION for the Free Line tool. It doesn't need the interpolation and it was showing slowness with large brushes.

humdingerb commented 11 months ago

Still perfect. Good change!

dsizzle commented 10 months ago

merged!