Local control for mesh morphing

Mesh morphing techniques are capable of producing a sequence of meshes, gradually changing from a source to a target shape. However, current techniques do not allow to describe the local behavior of the morph. A solution to this problem is presented. The main idea is to describe mesh geometry in a differential way, thus, insertion of local features from one shape into another does not suffer from difference in absolute coordinates. Besides interesting possibilities for animation the technique proves to be a powerful modeling tool.