Renders specific faces within a CubeTex using the specified DBPro camera. The camera must have a target image whos resolution is equal to or greater than the CubeTex's resolution. Faces are specifed by combining FaceIDs within a bit mask: PositiveX = 0 NegativeX = 1 PositiveY = 2 NegativeY = 3 PositiveZ = 4 NegativeZ = 5