There　are　a　variety　of　application　areas　in　which　3D　triangular　mesh　simplification,　is　necessary.　These　meshes　often,　have　material　properties　such　as　colors,　textures,　and　surface　normals.　In　this　paper　we　propose　a　new　simplification　method,　which　reduces　the　number　of　triangles　in　a　model　by　performing　a　sequence　of　half-edge　collapses.　It　differs　from　many　previous　simplification　methods　in　that　it　uses　both　geometry　and　texture　based　error　metrics　to　estimate　the　edge　costs.　As　expected,　our　approach　can　produce　models　of　high　visual　and　geometric　fidelity.