3 ms·

> It also turns out that some smart people figured out maths hacks to draw rounded boxes for super cheap which UI peeps love because with this hack boxes can be

• pmhpereira 2y ago
  Probably signed distance fields (SDF).
• leecommamichael 2y ago
  Some historic articles on software rendering (the original Bill Atkinson stuff) https://www.folklore.org/Round_Rects_Are_Everywhere.html https://www.folklore.org/Round_Rects_Are_Everywhere.html http://wg20.criticalcodestudies.com/index.php?p=/discussion/80/code-critique-roundrects-apple-quickdraw-source-code http://wg20.criticalcodestudies.com/index.php?p=/discussion/... A modern 3D accelerated article (using SDF as another commenter suspected) https://mortoray.com/quickly-drawing-a-rounded-rectangle-with-a-gl-shader/ https://mortoray.com/quickly-drawing-a-rounded-rectangle-wit...
  • rustystump 2y ago
    I was thinking SDFs and the Bill stuff at time of writing. Read my mind. Have to add work by Evan Wallace here too as he is a legend. https://madebyevan.com/shaders/fast-rounded-rectangle-shadows/ https://madebyevan.com/shaders/fast-rounded-rectangle-shadow... https://madebyevan.com/webgl-path-tracing/ https://madebyevan.com/webgl-path-tracing/