(computer graphics) A technique where a perturbation to the surface normal of the object being rendered is applied to each pixel, based on a texture map, prior to calculating the illumination, so as to produce a richer, more detailed surface representation.
A technique for simulating the appearance of rough surfaces in 3-D scenes. Variations in depth are stored in a texture and applied to geometry, using standard texture-blending techniques.
Does bump mapping generate more graphics load than parallax?