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# Objective UI Anti-aliasing is incorrectly implemented. It always uses an edge radius of 0.25 logical pixels, and ignores the physical resolution. For low dpi screens 0.25 is is too low and on higher dpi screens the physical edge radius is much too large, resulting in visual artifacts. ## Solution Multiply the distance by the scale factor in the `antialias` function so that the edge radius stays constant in physical pixels. ## Testing To see the problem really clearly run the button example with `UiScale` set really high. With `UiScale(25.)` on main if you examine the button's border you can see a thick gradient fading away from the edges: <img width="127" alt="edgg" src="https://github.com/user-attachments/assets/7c852030-c0e8-4aef-8d3e-768cb2464cab"> With this PR the edges are sharp and smooth at all scale factors: <img width="127" alt="edge" src="https://github.com/user-attachments/assets/b3231140-1bbc-4a4f-a1d3-dde21f287988"> |
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Bevy UI
