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Won't Fix

Votes

0

Found in

2018.4

2020.2

Issue ID

1281165

Regression

No

[FXC Crash] Shader compiler crashes when a project contains a shader with a conditional on Texture2D

Shader System

-

Reproduction steps:
1. Create a new project or open an existing one
2. Import the attached shader ("testPredicate.shader")
3. Observe errors in the console

Expected results: Shader is compiled without any errors
Actual results: Shader crashes the shader compiler

Reproducible with: 2018.4.28f1, 2019.4.9f1, 2020.1.9f1, 2020.2.0b7

Notes:
- Shader compiler seems to keep functioning after the errors
- Editor doesn't crash

  1. Resolution Note (2021.1.X):

    "Texture2D local = pred ? global0 : global1;"
    This is not valid HLSL code.

    The correct way to do this is to sample both and select from the results, e.g.
    float4 glob0 = global0.Sample(...);
    float4 glob1 = global1.Sample(...);
    float4 result = pred ? glob0 : glob1;

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