15-462 Lecture 13: Texture Mapping

03/14/2002

15-462 Graphics I

Some Solutions to Aliasing

•Take the average of surround values within the texture before applying the RGB value

•Bilinear

–average of 4 surrounding pixels

•Trilinear

–two bilinear filters

•Anisotropic

–elliptical mask over the texture

–expensive since elliptical mask can change so nothing can be pre-calculated