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Fixed in 2022.1.X



Found in


Issue ID




[DXC/DX12] No way to enable SM 6.6 features results in compiler error when e.g. using 64-bit atomics in a shader

Shader System


How to reproduce:
1. Open the attached project ("Repro 2")
2. Select the "SM_6_6_repro" shader and in its Inspector click "Compile and show code"
3. Observe the errors in the Console (Reimport the shader if errors were cleared)

Expected result: SM_6_6 64-bit atomics are supported without issues
Actual result: "Shader error in 'Unlit/SM_6_6_repro': opcode '64-bit atomic operations' should only be used in 'Shader Model 6.6+'" when compiling for the D3D API

Reproducible in: 2022.1.0a10 (931a09a17a43), 2022.1.0a7 (d67c444e4fb7)

Note: SM 6.6 feature support added in 2022.1.0a7 DXC update and thus is not a regression

  1. Resolution Note (fix version 2022.1):

    Fixed in: 2022.1.0a16

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