[leecommamichael]

Some historic articles on software rendering (the original Bill Atkinson stuff) https://www.folklore.org/Round_Rects_Are_Everywhere.html 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-wit...

[rustystump]

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-shadow... https://madebyevan.com/webgl-path-tracing/