A Practical and Robust Bumpmapping Technique for Today's GPUs

Bumpmappingisanormal-perturbationrenderingtechniqueforsimulatinglightingeffectscausedbypatternedirregularitiesonotherwise locallysmoothsurfaces.Byencodingsuchsurfacepatternsintexturemaps,texture-basedbumpmappingsimulatesasurface’sirregular lightingappearancewithou