Postprocessing Filters

The website version of the tutorial is not ready yet, but the tutorial files in the download package are fully described.

This tutorial explains how to use functions from the FXUtils? to perform convolution filtering. Convolution allows us to do sharpening and blur effects. The tutorial also makes use of a simple sky material tha allows day/night cycles.

If you never heard of convolution, this C# tutorial explains the effect quite well. The basic idea is that you sample neighboring pixels and the output pixel is a weighted sum of neigbors and self.