Let’s imagine we have a picture like this.


It is a good background for storm scene, but if we simply add lighting into the scene, the result will be mediocre:


To make it better, we have to place animation behind the house. This is a situation where the “background copy” tool helps.

First step: Add a “background copy” layer into the scene.

Second step: Paint over the house on the picture with this tool. (You may need to turn on the “highlight effect area” option to see the result clearly.)


Now your scene should look like this.