Trying to visualize the lighting of a painting, I import an image and use it as a texture on a simple box the size of my frame. When I aim an ETC profile at it, it does not light up like the surrounding materials. The "affects lighting"-option will only add an ugly white rectangle on top of my image. Of course I can make the image self-lit but that would be skipping the purpose of using capture. Turning on the "flourescents" in the room lights up the image perfectly on all levels.
Did I miss anything here? Please help.
Viktor