The journey of Anti-Aliasing leads us to Analytical Anti-Aliasing, a complex art-form of eliminating rasterization jaggies through various innovative approaches like SSAA and SMAA. We delve into the technical breakdown of GPU code and explore the concept of signed distance fields. Surprisingly, the circle is not drawn with geometry but by the shader itself. We also touch on the controversial topic of SSAA, a method of Super Sampling Anti-Aliasing, with references to its use in CGI movies like “Flight of the Navigator” (1986). The perfect Anti-Aliasing solution may be simpler than we think, with many hidden secrets waiting to be discovered.
https://blog.frost.kiwi/analytical-anti-aliasing/