A professional framework for Unity HLSL Shader development focused on the DRY principle and modular file organization.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install unity-shader-optimizer-llm-cleaner
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install unity-shader-optimizer-llm-cleaner using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
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Get the raw skill files in a ZIP archive.
What is Unity HLSL Shader Coding Style?
This skill establishes a rigorous standard for writing Unity HLSL Shaders, emphasizing the Don't Repeat Yourself (DRY) principle to enhance code maintainability and readability. By utilizing Openclaw Skills, developers can transition from monolithic shader files to a modular architecture using .hlsl header files and shared constant buffers. It specifically addresses Universal Render Pipeline (URP) requirements, ensuring that complex shaders with multiple passes remain clean and efficient while avoiding common pitfalls like inconsistent line endings or improper ShaderLab nesting.
Unity HLSL Shader Coding Style Use Cases
- Standardizing shader development across large Unity projects using Openclaw Skills.
- Refactoring bloated shaders to eliminate repetitive code blocks longer than 20 lines.
- Implementing multi-pass shaders (e.g., Straight vs. Premultiplied Alpha) without duplicating vertex and fragment logic.
- Ensuring cross-platform compatibility by enforcing modern URP texture sampling macros.
- Cleaning up ShaderLab structures to prevent unexpected syntax errors in the Unity Editor.
How Unity HLSL Shader Coding Style Works
- Analyze the shader requirements to identify reusable functions such as color adjustments, lighting, or transformations.
- Extract these common functions into independent .hlsl header files within a designated Common directory.
- Define CBUFFER blocks in shared headers to maintain property consistency across multiple shader passes.
- Structure the main .shader file as a framework that includes external logic files rather than hosting raw code.
- Apply platform-specific formatting, such as Windows CRLF line endings, to satisfy Unity's compiler requirements.
Unity HLSL Shader Coding Style Setup
To apply these Openclaw Skills standards to your project, organize your shader directory as follows:
# Create a standard directory structure
mkdir -p Shaders/Common
# Extract shared logic to headers
touch Shaders/Common/ColorAdjustment.hlsl
Ensure your IDE is configured to use CRLF line endings to prevent Unity's 'inconsistent line endings' warnings.
Unity HLSL Shader Coding Style Data Schema & Taxonomy
The skill organizes shader data into a clear hierarchy to minimize redundancy and maximize reuse.
| Component | File Extension | Responsibility |
|---|---|---|
| Main Shader | .shader | Defines Properties, SubShader tags, and Pass structure |
| Common Header | .hlsl | Global utility functions and shared CBUFFER definitions |
| Pass Logic | .hlsl | Actual vertex and fragment implementation for inclusion |
| Global Lib | .hlsl | Project-wide math and rendering utilities |
Unity HLSL Shader Coding Style Advanced Features
- DRY-Compliant Pass Management: Use preprocessor definitions like #define to toggle logic within shared pass files included by multiple ShaderLab passes.
- URP Texture Macros: Enforces the use of TEXTURE2D and SAMPLER macros for modern, cross-platform sampling instead of legacy tex2D.
- Strict ShaderLab Validation: Ensures HLSLPROGRAM blocks are correctly nested within Pass blocks to prevent parsing failures.
- Standardized File Scaffolding: Provides a clear template for separating ShaderLab framework code from HLSL implementation code.
- Line Ending Enforcement: Guidance on maintaining CRLF consistency for stable Windows-based development in Openclaw Skills workflows.
SKILL.md
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