Other features include perspective zoom. This is also an effect that is used often in movies. When something important needs to be focused on, the camera focuses sharply on that object or person and everything else seems blurry. Actually there are numerous games out that take advantage of it, but none actually go very far in terms of mass implementation. Bump Mapping Bump mapping is a technique used to add more realism to images without adding a lot of geometry.
Texture mapping adds realism by mapping images to geometric surfaces.
Bump mapping adds per-pixel surface relief shading, increasing the apparent complexity of the surface. This uses lighting properties and indicates which parts are dark and which are light on a texture, making it look more geometrically complex because of light refraction. Surfaces that should have a patterned roughness are good candidates for bump mapping. Examples include strawberries, oranges, stucco, wood, water, etc. A bump map is an array of values that represent an object's height variations on a small scale.