How to enable GPU capture using PIX on Window for RHI wdiget

[kclau]

I am trying to enable GPU debugging for a DirectX 12 RHI application using PIX on Windows. But when I check "For GPU capture" option in PIX, the tool fails to launch. Has anyone encountered this issue and successfully debugged DirectX 12 GPU calls within a QRHI application using PIX? I'd appreciate any insights or solutions.

Here is the setting of QT:
- QT 6.8.1
- Windows 10 22H2
- Intel Integrated GPU
- Simple RHI widget example


The error message:
pix_err.jpg
The environment variables I have modified:
qrhi_set.jpg
The init function:

if (m_rhi != rhi()) {
        m_pipeline.reset();
        m_rhi = rhi();
        QRhiD3D12InitParams params;
        params.enableDebugLayer = true; 
        m_rhi->create(QRhi::D3D12, &params);
}

if (m_rhi != rhi()) {
        m_pipeline.reset();
        m_rhi = rhi();
        QRhiD3D12InitParams params;
        params.enableDebugLayer = true; 
        m_rhi->create(QRhi::D3D12, &params);
}

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