The last few posts in this series on Effects have focused on the perspective of those using Effects. These Effects have to come into being somehow, and that's where we turn to now. In this post we showed how to apply a ColorComplementEffect to go from this to this: ColorComplementEffect, which very much looks like a photographic negative, is just about the simplest Effect one can imagine. Conceptually, all it does is take the RGB color components and create a new color with each component subtracted from 1.0. Let's first show what it takes to write it and add it to your app, then we'll expand and generalize from there in the next post. Creating the HLSL for color complement Here's some simple HLSL for doing the color complement. Note that this series is not in the least intended to be an HLSL tutorial. There are a bunch out on the Net, and there is also a Programmer's Guide and Reference Guide on MSDN that can be a good place to start. Also starting from existing examples (like those included Read More...