Or actually, I'm not sure if it's getting cropped, but it definitely seems like the outer edge is getting degraded somehow when the graphic meets the outer perimeter of the brush. To be more specific, I believe the graphic inside the square "canvas" is shifting a bit and the edge of the "canvas" is cropping part of it away. What these tests lead me to believe is that when you make the brush, there is a square(or a rectangle) area surrounding the brush, sort of like a smart object or a canvas and that area is somehow perhaps cropping away part of the outer edge when angle jitter rotates the brush. It wasn't as reliable and more hacky than just rotating the source image. With this method the angle jittered result looks pretty good as well. When you make a brush, all whitespace gets trimmed out, so similar to my blur attempt, I tried adding some extra whitespace to the outside edge of the source image using a thick outside stroke with 1% opacity. I also tested a blurred square with smaller brush size and that seemed to work better than no anti-aliasing, but it still failed quite badly when the brush was scaled to a really small size using Size jitter.Īfter that it occurred to me that in the bottom right result of the last image, the anti-aliasing looks pretty damn good on the inside edges of every single square. The straight angle square looks terrible in comparison (check the image below). I rotated my square 45 degrees before making it a brush and that seems to have given me a pretty good result. So I thought: "What if the source image already has anti-aliasing?" I realized that if I start with a rectangle with straight angles and no anti-aliasing, the brush engine has to figure out the anti-aliasing and it seems like it is pretty much botching it for whatever reason. This is a pretty lengthy explaining how I got to my conclusion, which is at the bottom of the answer after "Conclusion" Solution: Rotate the square 45 degrees before making it into a brush. Occasionally anti-aliasing disappears completely and generally just looks terrible. If it is a bug, it has probably always existed.Įither way, the issue seems to be that Angle jitter on a square brush does weird things to anti-aliasing on the outside edges. I was thinking about this question because I think I've bumped into this before.
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