Do you know what a Displacemment Map is? It uses the contours of an image for example the rough surface of a brick wall on an image placed above it. This gives a realistic effect to the image on top as it fits into the contours of the image below. To demonstrate it I will use two images, one of a brick wall.
This is the photo of a brick wall. I will use this for a Displacement Map.
This is the photo I will apply the Displacement Map to.
And this is the effect I get after applying the Displacement Map.
