https://youtube.com/shorts/c6kNX2HusaM

“Search prompt engineer”

Do you want the background to have looped back to the start after one cycle? If so, you probably have to make it repeat N times more than the foreground, and move by a factor of 1/N in comparison to the foreground. Or put another way, have 1/N times the length. That means that after one cycle, the background has moved a distance of 1/N, but also repeated exactly once.

I hope this makes sense…