Real Time Skin Deformation with Bones Blending

Ladislav Kavan
Charles University
Faculty of Mathematics and Physics
Malostranske nam. 25
118 00  Prague 1
Czech Republic

Jiri Zara
Czech Technical University in Prague
Faculty of Electrical Engineering
Karlovo nam. 13
121 35  Prague 2
Czech Republic

Keywords: Skeletal animation, digital skin, character modeling


Skeletal animation with vertex blending is a popular method to model believable 3D characters. Its main advantage is its speed that allows real-time deformation even on low level hardware. However it has some drawbacks as well: for some movements it produces non-natural postures like twisting elbows. We present a new method called bones blending that can be used as an alternative to vertex blending. Bones blending has a power to overcome the artifacts of vertex blending.