PowerVR was especially funky. They used planes to ‘carve’ out polygons. It meant that they could genuinely draw convex polygons with arbitrary numbers of side b

PowerVR was especially funky. They used planes to ‘carve’ out polygons. It meant that they could genuinely draw convex polygons with arbitrary numbers of side by using ~N+1 planes. I found it kind of cool to try and read through the simulator code in their open source release [0]. I imagine there would be an interesting write up if someone sat down and really wanted to understand it. [0] - https://github.com/powervr-graphics/PowerVR-Series1 https://github.com/powervr-graphics/PowerVR-Series1