Fandom

Computer Graphics

Bump mapping

158pages on
this wiki
Add New Page
Talk0 Share
File:Bump-map-demo-smooth.png
File:Bump-map-demo-bumpy.png

Bump mapping is a computer graphics technique where at each pixel, a perturbation to the surface normal of the object being rendered is looked up in a texture map and applied before the illumination calculation is done (see, for instance, Phong shading). The result is a richer, more detailed surface representation that more closely resembles the details inherent in the natural world.

The difference between displacement mapping and bump mapping is evident in this image; in bump mapping, the normal alone is perturbed, not the geometry itself. This leads to artifacts in the silhoutte of the object (the sphere still has a circular silhoutte).

ReferencesEdit

  • Blinn, James F. "Simulation of Wrinkled Surfaces", Computer Graphics, Vol. 12 (3), pp. 286-292 SIGGRAPH-ACM (August 1978)

See alsoEdit


This article is a stub. You can help the Computer Graphics Wiki by expanding it.

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.