I was wondering if there is a way to have the camera render only something like 80% of the frame so that I can have like a UI bar on the side or the bottom of the frame. Not rendering those pixels that would be overwritten by UI should give me some gpu performance, right?
I know that the pixels underneath get rendered anyway, that’s why I am asking how do I change the viewport size so that I dont render those covered pixels.
I am developing a tool that uses Unreal to do 3d rendering, but it is mostly 2D UI. My guess is that at least 50% of the screen will be covered at any given point in time with UI. Changing the render to a smaller box would probably result is at least a 25% speed up.