unity-shader-graph

# Unity Shader Graph Skill Visual shader development using Unity Shader Graph. ## Overview This skill provides capabilities for creating shaders visually using Unity's Shader Graph, enabling artists and developers to build complex materials without writing code. ## Capabilities ### Visual Authoring - Create shader graphs for URP/HDRP - Connect nodes for material logic - Preview effects in real-time - Handle shader variants ### Effect Types - Surface shaders (Lit, Unlit) - Vertex displacement - UV manipulation - Procedural textures ### Custom Development - Create custom nodes - Build subgraphs - Implement shader keywords - Handle multi-pass rendering ### Material System - Generate materials from graphs - Expose material properties - Handle texture sampling - Implement triplanar mapping ## Prerequisites - Unity 2021.3+ - Shader Graph package - URP or HDRP project ## Usage Patterns ### Common Node Patterns ``` Dissolve Effect: Noise → Step → Alpha Clip Threshold → Alpha Rim Lighting: Fresnel Effect → Multiply → Add Emission Scrolling UV: Time → Multiply → Add UV → Sample Texture Vertex Animation: Noise → Position Offset → Position ``` ### Custom Function Node ```hlsl // Custom HLSL function for Shader Graph void MyCustomFunction_float(float3 In, out float3 Out) { Out = In * 2.0; } ``` ## Best Practices 1. Use subgraphs for reusable patterns 2. Minimize texture samples 3. Use shader keywords for variants 4. Profile on target platforms 5. Document exposed p...