How to Use Shaders for Simulations

This series of tutorials will teach you how use shaders for simulations; in particular how to use them to simulate fluids. This first post will focus on how to continuously process a texture using a shader. This technique is at the heart of most simulations and will be used in this series to implement shaders that simulate smoke and liquids.

texture6

Continue reading

Screen shaders and image effects in Unity3D

Part 1, Part 2, Part 3, Part 4, Part 5, [download the Unity3D package]

If you are using Unity3D you may be familiar with image effects. They are scripts which, once attached to a camera, alter its rendering output. Despite being presented as standard C# scripts, the actual computation is done using shaders. So far, materials have been applied directly to geometry; they can also be used to render offscreen textures, making them ideal for postprocessing techniques. When shaders are used in this fashion, they are often referred as screen shaders.

Continue reading