The bakeshader from ahhh222223

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Unity editor tool for baking shaders to textures. Blit2D, Blit3D, or MeshRenderer (uses model UV). Adds options to Material & MeshRenderer context menus and Editor Window (under Window/Cyanilux/BakeShader)

License: MIT License

C# 100.00%

bakeshader's Introduction

BakeShader

Adds "Bake Shader" window (under Window/Cyanilux/BakeShader)
- Includes modes : Blit2D (png), Blit3D (Texture3D asset), MeshRenderer
Also adds "Bake" options to the "..." context menus on Material asset and MeshRenderer component
- (If BakeShader window is open, this will use resolution & path settings set there, otherwise uses defaults)
Should work in any render pipeline!

Setup:

Install via Package Manager → Add package via git URL :
- https://github.com/Cyanilux/BakeShader.git
Alternatively, download and put the folder in your Assets

Notes :

Blit2D : Shader is blit (basically draws a quad) to a Texture2D
- Result saved as .png
Blit3D : Shader is blit to a Texture3D in slices
- Use "_SliceDepth" Float property in shader. This ranges from 0 to 1 through the depth of the Texture3D
- Result saved as Texture3D asset
MeshRenderer : Renderer is drawn to Texture2D
- Will bake using first Material only
- Scene View must be open for Renderer baking to occur
- For correct results, shader should be unlit and output using UV coordinates instead of vertices - to handle this :
  - For graphs, use the provided Bake Shader Vertex Pos subgraph in the Position port on the Vertex stack. Also use Render Face : Both in graph settings.
    - Note that using the Position node in Fragment stage will now produce different results, as this changes the vertex positions. In v12+ we can avoid this by using a Custom Interpolator to pass the unmodified vertex pos through, if required. See : https://www.cyanilux.com/tutorials/intro-to-shader-graph/#custom-interpolators
  - For cg/hlsl, this should work (though some variables may need renaming). The pass should also specify Cull Off :

#pragma multi_compile _ _BAKESHADER

// in vertex function :
#ifdef _BAKESHADER
    float2 remappedUV = IN.uv.xy * 2 - 1;
    float3 bakeShaderPos = float3(remappedUV.x, remappedUV.y, 0);
#else
    float3 bakeShaderPos = IN.vertex;
#endif

OUT.vertex = UnityObjectToClipPos(bakeShaderPos); // Built-in RP
OUT.positionCS = TransformObjectToHClip(bakeShaderPos); // URP

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