Shaders

Welcome to the shaders section of VFX Documentation. in this section, you will find articles in relationship to authoring shaders in node-based tools, or code directly, either technical, workflows or artistic tricks.

General Concepts

• Why using Shaders? A non-exhaustive list of purposes and Use Cases for shaders.

Technical Concepts

• Shaders : Technical Overview : The different types of Shaders and How they work in a GPU.
• Color Management in shaders and game engines : LDR and HDR concepts. Gamma and Linear Rendering
• Technical introduction to HLSL , the GPU shader language (with a HLSL CheatSheet)

Workflows

• Alpha Erosion Workflows : how to dissolve alpha masks efficiently.
• Dot Product math operations and their useful practical cases.
• Fading pixels and alpha based on various criteria.
• Manipulating Texture Coordinates (UVs) useful workflows (scrolling, deformation, flow maps, gradient mapping,...)
• Shaders for Simulating Volumetric Lights and fog

Other Resources

• A bunch of HLSL & Graph Utility Snippets