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Fixed in 7.1.7



Found in [Package]


Issue ID




[HDRP] Crash on GfxDeviceD3D12::BuildTopLevelAccelerationStructure when changing Forced Screen Percentage

Package: Scriptable Render Pipeline HD


Steps to reproduce:
1. Create a new HDRP project or open the one attached by the user
2. Open the DXR + HDRP section of the HDRP Wizard (Window -> Render Pipeline -> HD Render Pipeline Wizard -> HDRP + DXR)
3. Make sure the project is HDRP + DXR ready (if not, press the "Fix all" button)
4. Select the HDRenderPipelineAsset in the Project Hierarchy
5. In Inspector find Dynamic Resolution
6. Check "Enable" and then "Force Screen Percentage"
7. Change the Forced Screen Percentage value

Reproducible with: HDRP 7.1.5 (2020.1.0a17), 7.1.6 (2019.3.0f4, 2020.1.0a17), 7.1.7 (2020.1.0a18)
Not reproducible with: HDRP 7.0.1 (2019.3.0b4), 7.1.1 (2019.3.0b4, 2019.3.0b12), 7.1.2 (2019.3.0b4, 2019.3.0b12)
Couldn't test HDRP 7.1.5 on 2019.3.0b4, 2019.3.0b12 due to UnauthorizedAccessException when trying to fix the HDRP + DXR issues in HDRP Wizard

0x00007FF62AF4E244 (Unity) GfxDeviceD3D12Base::DrawBuffersCommon
0x00007FF62AF4D9BF (Unity) GfxDeviceD3D12Base::DrawBuffers
0x00007FF62AFA6E3B (Unity) GfxDeviceWorker::RunCommand

0x00007FF7D5DC537A (Unity) GfxDeviceD3D12::BuildTopLevelAccelerationStructure
0x00007FF7D5DC4C3C (Unity) GfxDeviceD3D12Base::BuildRayTracingAccelerationStructures
0x00007FF7D5DFCC87 (Unity) GfxDeviceWorker::RunCommand

- Stacktraces seem to appear interchangeably
- After the crash, as long as the editor doesn't quit, it leaks memory

  1. Resolution Note (fix version 7.1.7):

    Fixed in 2020.1.0a21

  2. Resolution Note:

    Fixed in 2019.3.0f6 (27ab2135bccf)

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