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Won't Fix

Votes

3

Found in [Package]

13.1.8

14.0.3

15.0.1

Issue ID

SGB-338

Regression

Yes

Shader Graph compilation shows errors when compiling for the current build platform for DX12

Package: Shader Graph

-

Reproduction steps:
1. Open the attached project “Test”
2. In Project window find and open Assets/ProblematicShader/ParticleUnlitSoftWarp.shadergraph Shader Graph
3. Press “Compile and show code” in the Inspector (make sure it is selected to compile for “Current build platform”
4. Go to Edit > Project Settings > Player > Other Settings and change Graphics API to Direct3D12
5. Compile and show code again for the Assets/ProblematicShader/ParticleUnlitSoftWarp.shadergraph Shader Graph

Expected result: The Shader Graph is compiled successfully without errors
Actual result: “Shader error in 'Shader Graphs/ParticleUnlitSoftWarp': Instructions should not read uninitialized value. at ParticleUnlitSoftWarp(1700) (on d3d11)” errors

Reproducible with: 13.1.1 (2022.1.0a16), 13.1.8 (2022.1.21f1), 14.0.3 (2022.2.0b13), 15.0.1 (2023.1.0a17)
Not reproducible with: 10.10.1 (2020.3.41f1), 12.1.7(2021.3.12f1), 13.1.0 (2022.1.0a15)

Reproducible on: Windows 10

Note: Errors go away when Shader Graph is reimported

  1. Resolution Note:

    As this is an experimental feature, we aren't committed to resolving this in the near-term. The information helps us understand what other considerations we may need to have before pulling this out of experimental.

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