When you are using a photo for reference, do you make a layer and dim the transparency, then draw over it? Or do you (assuming you have 2 monitors) put it on your "reference" monitor to look at.. and maybe grid everything out.
I've got something I'm working on I want to finish ASAP because it's driving me crazy, so I was thinking of finding a picture of a similar environment, putting it under my painting, and drawing over it. If I'm not going to learn anything I'd rather not do it though. Just wondering if any pros or good artists do that since you can with photoshop (I've even heard of oil painters using a overhead projectors to put what they want to paint on the canvas without laying down pencil lines)
I know referencing is smart and not cheating, but is literally drawing on top of it a lazy route, or will it give me some knowledge for future pieces.