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Fixed in 13.1.1



Found in [Package]


Issue ID




[HDRP][DXR] Pathtracer stacklit supports breaks when coat mask parameter is exposed AND equals zero

Package: Scriptable Render Pipeline HD


Repro steps :
- Open attached project
- Open SampleScene
- Make sure PathTracer is enabled in the volume gameobject
- Select Shader Graphs_StackLit_Parameter and change its parameter called coat mask to 0

Expected : Coat should disappear
Result : Material's all black

Additional info :
- When doing the same without using a parameter in shader graph, it does not repro.. (you can test on Shader Graphs_StackLit_Hardcoded).
- It reproes only with the exposed parameter
- This looks like it's very niche issue but this actually makes the 3dsMaxPhysical Material fail !

Environment :
- Windows 10
- Unity 2022.1.0a13
- HDRP 13.1.1

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