How to render at half resolution with same window resolution?

Does unity support rendering at a different resolution to the screen or window resolution? eg: Having a window resolution of 1280x720 and rendering 50% of that (640x360) then up-scaling it back to 1280x720. Ive tried achieving this with a render texture and drawing it to the GUI but am still learning about them and was just wondering if there was a more direct approach.

Regards

  • Matt