Hair Image Generation Using Connected Texels

Generation of photo-realistic imagesof human hair is a challenging topic in computer graphics. Thedifficulty in solving the problem in this aspect comes mainly from theextremely large number of hairs and the high complexity of the hairshapes. Regarding to the modeling and rendering of hair-type objects,Kajiya proposed a so-called texel model for producing furry surfaces.However, Kajiya's model could be only used for the generation of shorthairs. In this paper, a concise and practical approach is presented tosolve the problem of rendering long hairs, and in particular the methodof rendering the smooth segmental texels for the generation of longhairs is addressed.