Shader error is thrown when using a Compute Shader with a second kernel

Unity: Shader System

Fixed

6.5.X

6000.5.0a3

Won't Fix

6.4.X

6.3.X

6.2.X

6.1.X

6.0.X

2022.3.X

2021.3.X

The source of the issue seems to be a bug in FXC, and unfortunately we can't do anything about it. Could try using DXC which may not contain the bug. For now, I've improved the error message reported to more clearly indicate that the shader compiler crashed due to FXC (as opposed to a crash caused by code Unity owns).

Unity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

Cancelling: the 6000.1 version has reached its end of life. If you need additional fixes, please upgrade to a newer Unity version.

Unity 2021.3 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

How to reproduce:
1. Open any project
2. Import the attached “Compile DepthPyramidComputeShader.compute“ compute shader
3. Observe the Console

Expected result: No errors are thrown
Actual result: Internal shader error is thrown

Reproducible with: 2021.3.50f1, 2022.3.60f1, 6000.0.45f1, 6000.1.0b13, 6000.2.0a8

Reproducible on: Windows 10
Not reproducible on: No other environment tested

Error: Shader error in 'DepthPyramidComputeShader': Compiling CSCombine: Internal error communicating with the shader compiler process. Please report a bug including this shader and the editor log. Error code 0x80000004 (Not connected).

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Shader error is thrown when using a Compute Shader with a second kernel

Unity: Shader System

Statuses

Fixed

Won't Fix

Resolution Notes

6.2.XWon't FixUnity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

6.1.XWon't FixCancelling: the 6000.1 version has reached its end of life. If you need additional fixes, please upgrade to a newer Unity version.

2021.3.XWon't FixUnity 2021.3 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

Description

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Have a workaround or additional info about this issue?

Shader error is thrown when using a Compute Shader with a second kernel

Unity: Shader System

Statuses

Fixed

Won't Fix

Resolution Notes

6.2.XWon't FixUnity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

6.1.XWon't FixCancelling: the 6000.1 version has reached its end of life. If you need additional fixes, please upgrade to a newer Unity version.

2021.3.XWon't FixUnity 2021.3 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?