So I normally don't do composting work but due to the limitations of this project I may have to do some composting. I need to add an RV motorhome to an image because the RV we are using for the shoot is located on the other side of the state and does not actually run so we can not get it to our location. So I've been trying to learn to composite to make this shoot happen.
The plan was to shoot the RV at the same time, angle, height, as the location shot it will be composited into. Doing this will hopefully allow me lighting and shadows to line up and look natural. I will have to replace the shadow most likely due to the ground being different in each location but I imagine that will not be to hard since I will have the original shadow for reference of size and position. I just wanted to ask what else do I need to be on the look out for to make sure it looks like the two shots are actually one?
Quality of light is the most important thing to match. Direction and light ratios are also important but if I have to sort them by importance, quality of light is what's mostly important.
The other is lots of patience. If you want to make it look real you have to be careful about the details. When doing a composite get some time away from the project and then see it with new eyes. Most of the times you'll find it doesn't look as real as you thought before.
It's not easy :) That's why I don't like compositing either (although I have made some).