After implementing the deferred shading demo using HLSL, I decided to continue to enhance my knowledge of shader programming. Therefore, I researched and implemented various full-screen ‘filter’ post-processing shaders that mimic effects found in Photoshop and other graphical painting tools. The culmination of this research is a technical demo which allows the user to preview each of these filter effect in real time using my current engine framework: a DirectX rendering architecture using DirectX HLSL pixel shaders written in the .fx file format.

The demo implemented: a Hue/Saturation/Value shader, a Greyscale shader, a 4 tone black and white shader, an invert color shader, a sharpen shader, a blur shader, a radial blur shader, and a luminosity based edge detection shader.