UE5 MediaCapture插件如何分离UMG，过滤UI后纯游戏画面渲染给采集卡输出

Question

有没有人能帮忙解决这个问题？里面涉及到UE的MediaCapture插件模块。
如何在打包模式下使得桌面端正常显示UI, 而输出到采集卡的画面自动过滤屏蔽掉UI界面?
也就是拿到没有渲染UI前的画面提供给MediaCapture插件. 再正常输出带UI的画面到游戏视窗

/** Helper class to be able to friend it and call methods on input media capture */
    class FMediaCaptureHelper
    {
    public:

        static FTexture2DRHIRef GetSourceTextureForInput(FRHICommandListImmediate& RHICmdList, FSceneViewport* CapturingSceneViewport, FTextureRenderTargetResource* TextureRenderTargetResource)
        {
            FTexture2DRHIRef SourceTexture;
            if (CapturingSceneViewport)
            {
#if WITH_EDITOR
                if (!IsRunningGame())
                {
                    // PIE, PIE in windows, editor viewport
                    SourceTexture = CapturingSceneViewport->GetRenderTargetTexture();
                    if (!SourceTexture.IsValid() && CapturingSceneViewport->GetViewportRHI())
                    {
                        SourceTexture = RHICmdList.GetViewportBackBuffer(CapturingSceneViewport->GetViewportRHI());
                    }
                }
                else
#endif
                    if (CapturingSceneViewport->GetViewportRHI())
                    {
                        // Standalone and packaged
                        SourceTexture = RHICmdList.GetViewportBackBuffer(CapturingSceneViewport->GetViewportRHI());
                    }
            }
            else if (TextureRenderTargetResource && TextureRenderTargetResource->GetTextureRenderTarget2DResource())
            {
                SourceTexture = TextureRenderTargetResource->GetTextureRenderTarget2DResource()->GetTextureRHI();
            }

            return SourceTexture;
        }

代码全文在UE引擎官方插件MediaIOFramework中，MediaCapture.cpp文件

Answer 1

http://e.betheme.net/article/show-984752.html?action=onClick

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