Compositing Principle #2: Perspective
Hello once again, LayerCake people! Today we move on to the second in our list of principles for good compositing… Perspective. When I say “perspective”, I’m referring to the angle and height of the viewer/camera as it looks toward the subject. All our different elements/photos in our composite must share the same angle/perspective to be believable.
Let’s say you have a scene in which there is a hot air balloon rising well above the ground and your goal is to place a person in this scene. How do we need to shoot that person for maximum integration? What we need to consider is what angle the camera was pointed at when capturing the photo of the balloon. Obviously, we can see the underside of the basket of the balloon… to some extent, right? Why? Well, because it’s above the viewer so the underside is visible. That tells us that the camera was pointed up. Though we don’t have the luxury of always knowing what the exact angle was (especially if we’re using stock photos), optics and lens distortion always leave clues…
Ever notice how when looking up at sky scrapers the bottom is wide and the top is narrow and tiny? We don’t even need to know why… we just need to take note that this is what happens to objects when we view it through the viewfinder while pointing the camera up. Soooo, what are we going to do when we take a photo of the person for our scene? You guessed it, we’re going to point it up. How much? Experimentation and observation is the key to know how much, but once you nail it, the blend is perfect. What happens if you don’t observe and respect this principle when shoot/creating your works of art? Well, if the building is offset as it is when we point the camera up (the building looks like it’s falling over backwards, doesn’t it?) but the person is shot with the camera pointed level? The person will look like they’re falling forward… not exactly the effect we’re going for.
Here’s a quick composite I made to illustrate perspective using a couple of stock images and our trusty LayerCake Studio Magic panels: