Render target and pixel format

Development Programming & Scripting C++
1

Can a UTextureRenderTarget2D have any pixel format other than the default “PF_FloatRGBA” when used with a USceneCaptureComponent2D source?

These are defined in te header file:

USceneCaptureComponent2D *Camera;
UTextureRenderTarget2D *RenderTarget;

Then in the Actor class definition:

Camera = CreateDefaultSubobject<USceneCaptureComponent2D>(TEXT(“Camera”));
RenderTarget = NewObject<UTextureRenderTarget2D>();
RenderTarget->InitAutoFormat(512, 512);
Camera->TextureTarget = RenderTarget;

Above compiles no problem but…

Camera = CreateDefaultSubobject<USceneCaptureComponent2D>(TEXT(“Camera”));
RenderTarget = NewObject<UTextureRenderTarget2D>();
RenderTarget->InitAutoFormat(512, 512);
RenderTarget->OverrideFormat = EPixelFormat::PF_A8R8G8B8;
Camera->TextureTarget = RenderTarget;

Crashes the editor.

Is there a way to configure this correctly?

Thanks for any help!

2

I’m using render targets with capture components like this:



    UTextureRenderTarget2D* RenderTarget = NewObject<UTextureRenderTarget2D>();

    RenderTarget->RenderTargetFormat = ETextureRenderTargetFormat::RTF_RGBA8;
    RenderTarget->Filter = Filter;

    RenderTarget->InitAutoFormat(Size.X, Size.Y);
    RenderTarget->UpdateResourceImmediate(true);

    ...


    SceneCapture->TextureTarget = RenderTarget;
    SceneCapture->CaptureScene();

You can probably leave out the UpdateResourceImmediate if you aren’t going to manually capture immediately, but the format definitely has to be set before you call InitAutoFormat.

3

That helps thanks. Though there are fewer ETextureRenderTargetFormats to choose from.