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shader-graph-create-custom-node

shader-graph-create-custom-node

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Generates custom Shader Graph nodes from HLSL code. Use when the user wants to create a new Shader Graph node or make existing HLSL code work as a reflected function node.

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Updated 8/21/2026
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shader-graph-create-custom-node
description

Generates custom Shader Graph nodes from HLSL code. Use when the user wants to create a new Shader Graph node or make existing HLSL code work as a reflected function node.

Generating a custom Shader Graph node

Step 1: Generate an HLSL function definition

  • The function must be preceded by the preprocessor define UNITY_EXPORT_REFLECTION

Step 2: Decorate with Shader Graph hint tags

  • See resources/all_hints.hlsl for all valid hint tags and usage patterns
  • C#-style documentation tags are supported outside of funchints or paramhints blocks
  • Required function hints:
    • sg:ProviderKey
    • sg:SearchCategory
    • sg:SearchTerms
    • sg:DisplayName

Step 3: Write the code to an asset

  • Search the project for a ShaderInclude asset (.hlsl) that already contains custom Shader Graph nodes
  • If a matching asset exists, show the user its current contents and ask for confirmation before appending the new code
  • If no matching asset exists, create a new .hlsl asset
  • Ensure the file begins with #include "ShaderApiReflectionSupport.hlsl"