Multi Sampling
A form of uniform post-filtering which fixes aliasing issues by using a common pattern to sub-sample each pixel.
For [see page 21, MSAA] each pixel is divided into sub-pixels and rendered separately. We then use an average of these sub-samples to determine each pixels colors.
This is like SSAA but rather than rendering at a higher resolution, we pick a certain pattern (non-stochastically) and pick multiple samples at those points for each pixel averaging the result into the final pixel color.