Azex 3D fill, optimized for quad 3-7% faster than two triangle methods. I can run >20,000 tri/s on my PC , this is 600 triangles with 30 FPS
Tri fill by @KryptoScratcher https://scratch.mit.edu/projects/885002848/ Also @TheGoodGuy8000 helped a bit It reuses same edge, meaning it saves on using extra custom blocks, and length calculations for shared edge. Also the edge is drawn faster.