3 ms·
Stupid question: Why not use the hardware (fixed function) rasterizer inside the GPU? I guess that one is only optimized for triangles.
by cubefox 1y ago
Stupid question: Why not use the hardware (fixed function) rasterizer inside the GPU? I guess that one is only optimized for triangles.
- mindbrix 1y agoGood question and answer ;-)
- mindbrix 1y agoThe longer answer is that using straight-edged geometry to represent curves is a resolution-dependent operation, e.g. a full screen circle may need to be flattened to an 80-sided polygon. Rasterizer can solve quadratic curves in the fragment shaders, which massively reduces the geometry needed for a scene. Also, the native rasterizer only supports MSAA, which is inferior to reference analytic area AA.