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How to set custom DepthStencil texture correctly?

For custom shaders, I want to create and set depth stencil buffer with c++. There is my code:

 void FDemoRender::RenderDemoInternal(ERHIFeatureLevel::Type RHIFeatureLevel, UTextureRenderTarget2D* RenderTarget)
     FRHICommandListImmediate& RHICmdList = GRHICommandList.GetImmediateCommandList(); 
     FTexture2DRHIRef RT_Texture = RenderTarget->GetRenderTargetResource()->GetRenderTargetTexture();
     FRHIRenderTargetView BackBufferView = FRHIRenderTargetView(RT_Texture, ERenderTargetLoadAction::EClear);
     FRHIResourceCreateInfo DepthStencilTexCreateInfo(FClearValueBinding(1.0f, 0));
     FTexture2DRHIRef DepthStencilTex = RHICmdList.CreateTexture2D(
         RenderTarget->SizeX, RenderTarget->SizeY, PF_DepthStencil, 1, 1, TexCreate_None, DepthStencilTexCreateInfo);
     FRHIDepthRenderTargetView DepthStencilView(DepthStencilTex, 
         ERenderTargetLoadAction::EClear, ERenderTargetStoreAction::ENoAction, 
         ERenderTargetLoadAction::EClear, ERenderTargetStoreAction::ENoAction);
     RHICmdList.SetRenderTargetsAndClear(FRHISetRenderTargetsInfo(1, &BackBufferView, DepthStencilView));

When I run my project on windows, the program stop at the breakpoint: Source\Runtime\Windows\D3D11RHI\Private\D3D11Commands.cpp:791 ensure(CurrentDepthTexture); the CurrentDepthTexture is null.

How to set custom DepthStencil texture correctly? Thank you.

Product Version: UE 4.19
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asked Jun 01 '18 at 01:44 PM in Rendering

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