Three.js Shaders When to Use - You need custom shader logic in Three.js. - The task involves , uniforms, GLSL, vertex deformation, or fragment-based effects. - You are extending material behavior beyond what built-in materials provide. Quick Start ShaderMaterial vs RawShaderMaterial ShaderMaterial Three.js provides built-in uniforms and attributes. RawShaderMaterial Full control - you define everything. Uniforms Uniform Types GLSL Declarations Updating Uniforms Varyings Pass data from vertex to fragment shader. Common Shader Patterns Texture Sampling Vertex Displacement Fresnel Effect Noise-B…