How to change the Movie Render Queue Viewport size?

Development Cinematics & Media Virtual Production
, , ,
3

I projected to the screen using a USceneCapture2D.

Get the ViewInfo first somewhere:

FMinimalViewInfo ViewInfo;
USceneCaptureComponent2D* CaptureComponent; //Initialize this first somewhere
CaptureComponent->GetCameraView(0.0f, ViewInfo);

then call this function to project it from WorldPos to ScreenPos:

bool Project2Screen(FMinimalViewInfo& CapturedView, const FVector& ViewLocation, const FRotator& ViewRotation, const FVector3d& WorldPos, FVector2d& ScreenPos, int32 ImageHeight, int32 ImageWidth)
{
    ScreenPos = FVector2d(0.0, 0.0);

    const FMatrix ProjectionMatrix = CapturedView.CalculateProjectionMatrix();
    FMatrix ViewPlanesMatrix = FMatrix(
        FPlane(0, 0, 1, 0),
        FPlane(1, 0, 0, 0),
        FPlane(0, 1, 0, 0),
        FPlane(0, 0, 0, 1));

    const FMatrix ViewRotationMatrix = FInverseRotationMatrix(ViewRotation) * ViewPlanesMatrix;

    const FMatrix ViewMatrix = FTranslationMatrix(-ViewLocation) * ViewRotationMatrix * ProjectionMatrix;

    FIntRect InRect(0, 0, ImageWidth, ImageHeight);
    return FSceneView::ProjectWorldToScreen(WorldPos, InRect, ViewMatrix, ScreenPos);

    return false;
}

Hope this helps!

1 Like