Integration in FlaxEngine

[Cop46]

Hi,
I have tried to integrate ImGui into Flax Engine ( https://github.com/FlaxEngine/FlaxEngine) but I can get it to work in directx 12.
In directX 11 that work perfect...
If anyone can look at this to help me, that was really sympatical ?
Thanks.

My actual work :
The initialisation code is in GPUDeviceDX12.Cpp file line 657 :
ImGui_ImplDX12_Init(_device, 1,
DXGI_FORMAT_R8G8B8A8_UNORM, RingHeap_CBV_SRV_UAV.GetHeap(),
RingHeap_CBV_SRV_UAV.GetHeap()->GetCPUDescriptorHandleForHeapStart(),
RingHeap_CBV_SRV_UAV.GetHeap()->GetGPUDescriptorHandleForHeapStart());

The init of impl is in file Engine.Cpp line 150 :
ImGui_ImplWin32_Init(MainWindow->GetNativePtr());
At line 361 :
ImGui_ImplDX12_NewFrame();
ImGui_ImplWin32_NewFrame();
ImGui::NewFrame();
ImGui::ShowDemoWindow(&show_demo_window);

And the draw part in GPUDevice.Cpp at line 510 after the RenderEnd();
ImGui::Render();
GPUContextDX12* _context = (GPUContextDX12*)context;
ID3D12GraphicsCommandList* commandList = _context->GetCommandList();
GPUDeviceDX12* _device = (GPUDeviceDX12*)_context->GetDevice();
context->ResetRenderTarget(); <---Here if I don't use this, the engine crash with render target error
ImGui_ImplDX12_RenderDrawData(ImGui::GetDrawData(), commandList);