In　this　paper,　we　present　a　technique　for　multi-resolution　meshes　deformation　based　on　pyramid　coordinates.　Pyramid　coordinates　are　rotation　invariant,　and　can　achieve　low　distortion　editing　for　large　deformations.　Their　drawback　is　that　the　reconstruction　process　is　nonlinear　and　time　consuming　especially　for　large　meshes.　In　order　to　decrease　the　computational　cost,　the　proposed　method　reduces　the　number　of　vertices　involved　in　the　deformation.　We　first　construct　a　simplified　mesh　using　a　modified　CPM　algorithm;　then　edit　the　simplified　meshes　by　pyramid　coordinates　based　mesh　detail　presentation;　finally,　series　of　details　are　added　to　the　deformed　simplified　mesh.　Our　algorithm　can　generate　natural　looking　deformations　more　efficiently　than　the　original　pyramid　coordinates　method.　©　2007　IEEE.