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Complex triangle meshes arise naturally in many areas of computer graphics and visualization. Previous work has shown that a quadric error metric allows fast and accurate geometric simplification of meshes. This quadric approach was recently generalized to handle meshes with appearance attributes. In this paper we present an improved quadric error metric for simplifying meshes with attributes. The new metric, based on geometric correspondence in 3D, requires less storage, evaluates moredoi:10.1109/visual.1999.809869 dblp:conf/visualization/Hoppe99 fatcat:webutxwhdnczrentlczwashjxq