Here is Geeks3D’s GLSL Shader Library. The GLSL Shader Library gathers on a single page all OpenGL/GLSL shaders presented on Geeks3D.com.
Categories:
1 – Post Processing Filters
 | Toonify GLSL Post Processing Filter |
 | Fish Eye, Dome and Barrel Distortion GLSL Post Processing Filters |
 | Radial Blur Post Processing Filter (for webcam / video) |
 | Electrocardiogram Effect |
 | Swirl Post Processing Filter in GLSL |
 | Cross Stitching Post Processing Filter in GLSL |
 | Simple 2D Effects: Sphere and Ripple in GLSL |
 | Crosshatching GLSL Post Processing Filter |
 | Sobel and Frei-Chen Edge Detector Post Processing Filters |
 | Frosted Glass GLSL Post Processing Filter |
 | Predator Thermal Vision GLSL Post Processing Filter |
 | Pixelation GLSL Post Processing Filter |
 | Gaussian Blur GLSL Post Processing Filter |
 | 2D Shockwave GLSL Post Processing Filter |
 | Dream Vision GLSL Post Processing Filter |
 | Posterization GLSL Post Processing Effect |
 | Lens Circle GLSL Post Processing Effect |
 | Night Vision GLSL Post Processing Filter |
2 – Lighting
 | Bumpy Sphere Environment Normal Mapping |
 | Normal Mapping without Precomputed Tangent Space Vectors |
 | Chromatic Aberration |
 | Bump Mapping |
 | Phong Lighting |
3 – Utils
 | Particle Billboarding with the Geometry Shader (GLSL) |
 | Simple Billboarding Vertex Shader |
 | Mesh Exploder with Geometry Shaders |
 | Normal Visualizer with GLSL Geometry Shaders |
 | Circle, Disc and Fake Sphere in GLSL |
 | Fast Approximate Anti-Aliasing FXAA in GLSL |
 | Simplex Noise in GLSL |
 | Noise and Pseudo Random Number Generator in GLSL |
4 – Misc
 | OpenGL 4.2 Atomic Counters: Rasterization Pattern, Helper for Rendering Optimization |
 | Morph Target Animation using generic vertex attributes |
 | 3D Surfaces Plots |
 | Building Worlds With Distance Functions in GLSL (Raymarching) |
 | GLSL Interpolation Qualifiers |
 | GLSL Tessellation Spacing Modes |
 | Simple Introduction to Geometry Shaders in GLSL (Part 1) |
 | Simple Introduction to Geometry Shaders in GLSL (Part 2) |
 | Gamma Correction |
 | How to Visualize the Depth Buffer in GLSL |
 | FP64 in GLSL |