Xu, ZhengKondo, Kunio2015-11-112015-11-1119991017-4656https://doi.org/10.2312/egs.19991063One problem in subdivision surfaces is the number of meshes grows quickly after every subdivision step. The number of meshes of the subdivision surface is usually huge and the scheme is difficult to manipulate. In this paper, an adaptive refinement method based on Doo-Sabin subdivision surfaces is presented. Adaptation process is controlled by an allowable angle tolerance between the normal vectors of adjacent faces. Local refinements can be realized.