A computer-generated scene is generated as background for a live action set, for display on a panel of light emitting diodes (LEDs). Characteristics of light output by the LED panel are controlled such that the computer-generated scene rendered on the LED panel, when captured by a motion picture camera, has high fidelity to the original computer-generated scene. Consequently, the scene displayed on the screen more closely simulates the rendered scene from the viewpoint of the camera. Thus, a viewpoint captured by the camera appears more realistic and/or truer to the creative intent.