Experiments in Ray-Tracing, Part 8: Anti-Aliasing
In this article I’ll explain how to perform anti-aliasing quickly, getting 5x sampling for a cost of just 2x the time.
Anti-aliasing is a technique to remove the “jaggies” in a rendered image. Let’s start with the standard shiny-balls-on-a-chessboard:
I’ve zoomed into the image a little, so that you can see the pixellated edges.
Anti-aliasing is most simply [...]