how to present ID3D11Texture2D using swapChain?

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how to present ID3D11Texture2D using swapChain?

mc 5,551

just set once RenderTargetView or present then release the rendertargetView and then again set the rendertarget view?OMSetRenderTargets or swapChain->GetBuffer?

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Varsha Dundigalla(INFOSYS LIMITED) 155 Microsoft External Staff

Thank you for reaching out. Please find the answer below

To present an ID3D11Texture2D using a swap chain, the texture must be the back buffer obtained from the swap chain. You create a render target view (RTV) from this back buffer and set it using OMSetRenderTargets. You do not need to recreate the RTV every frame unless the swap chain is resized or recreated.

While OMSetRenderTargets doesn't technically need to be called every frame if the render target stays the same, it's considered best practice to call it each frame. This ensures the rendering pipeline has a valid target, especially since some bindings may reset after calling Present.

Once rendering is done, you call Present on the swap chain to display the final image on screen.

mc 5,551 Reputation points

2025-07-04T12:20:47.0366667+00:00

I am using mft to convert h264 to nv12 and when I call ProcessInput multiple times it will terminate do you know the reason?
Varsha Dundigalla(INFOSYS LIMITED) 155 Reputation points Microsoft External Staff

2025-07-04T13:04:09.55+00:00

If ProcessInput() is called multiple times without calling ProcessOutput(), the internal input queue becomes full. Once full, the MFT will not accept more input and may cause the application to terminate or behave unexpectedly. To avoid this ProcessOutput() should be called regularly to retrieve decoded frames and free up space in the queue.

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