SSMF: Normal Map
From Spring
Normal maps (in this case) are used to add "fake" 3d detail to a flat 2d image. It is a technique of manipulating lighting to give the appearance of looking at a 3d object, when actually it is just 2D.
Normal maps (in this case) are used to add "fake" 3d detail to a flat 2d image. It is a technique of manipulating lighting to give the appearance of looking at a 3d object, when actually it is just 2D.