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[Impeller] Add rounded rect SDF blur#35084
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| ] | ||
| elif args.platform == 'ios': | ||
| command += [ | ||
| '--std=ios-metal1.2', |
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It looks like these will get duplicated when args.optimize is true.
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Whoops, this wasn't an intentional change, removed. It's a diff I lug around in my git stage to stop the xcode GPU profiler from crashing in debug unopt.
chinmaygarde
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Aug 2, 2022
| frag_info.corner_radius = | ||
| std::min(corner_radius_, std::min(positive_rect.size.width / 2.0f, | ||
| positive_rect.size.height / 2.0f)); | ||
| ; |
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Adds an SDF blur that can be used for rects, rounded rects, and circles.
Uses #35083.
Right now there are visible corner artifacts when the blur radius is larger than the corner radius due to gradient discontinuities. I'm experimenting with a couple of promising solutions for this (one that samples the field a few times and one that interpolates with another field), but I figured I'd land this initial implementation since everything else is in place.
Will probably move some of the utilities into the shader lib depending on what the final solution ends up needing.
Screen.Recording.2022-08-02.at.3.55.23.AM.mov