Bumpmapping is a technique in computer graphics used to visually enhance textured surfaces by creating the illusion of relief, or bumps and dips. This is achieved by superimposing a bump map texture over the texture of the surface, which describes the height differences on the surface. So the bumpmap texture contains only height information and no colors. When the bump map is applied to the texture, the pixels of the texture are distorted according to the height values of the bump map, visually creating the illusion of relief.
Bumpmapping is often used to give 3D models in computer and video games a more realistic look, such as by creating the illusion of dirt or scratches on the surface of objects. It can also be used to make areas in 2D graphics or photographs appear deeper or flatter.
When bump mapping, there are a few things to keep in mind to achieve realistic and convincing results:
When bump mapping, there are some mistakes that should be avoided in order to achieve realistic and convincing results:
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