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Fixed in 2022.2.X

Duplicate in 2020.3.X, 2021.3.X

Votes

0

Found in

2019.4

2021.2

2021.2.7f1

2022.1

2022.2

Issue ID

1389382

Regression

No

Unable to modify RWStructuredBuffer elements via indirect dispatch of a compute shader when using the Direct3D11 API

DirectX11

-

Reproduction steps:
1. Open project "dispatch_indirect_bug.zip"
2. Open Scene "TestScene"
3. Enter Play Mode
4. Observe Game view

Expected result: RWStructuredBuffer is modified and Scene's background color is green
Actual result: RWStructuredBuffer is not modified and Scene's background color is red

Reproducible with: 2019.4.36f1, 2021.2.15f1, 2022.1.0b11, 2022.2.0a7

Notes:
- Doesn't happen with OpenGLES3, OpenGLCore, Direct3D12 and Vulkan graphics API

  1. Response avatar

    Resolution Note (fix version 2022.2):

    Fixed in: 2022.2.0a9
    An indirect argument buffer needs to be given the correct buffer type to work on DX11

    i.e. IndirectBuffer = new ComputeBuffer(3, sizeof(int), ComputeBufferType.IndirectArguments);

    Although the project script will need changing, we are adding an additional message to indicate when a buffer without the correct flags is used with dispatch indirect

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