Kaydara has debuted an updated version of its 3D character-animation software MotionBuilder at Siggraph, which runs July 26 in San Antonio, US.

MotionBuilder 4.0 features a new drag-&-drop interface, automatic character-rigging, improved lip sync and facial animation, real-time display and a drag-&-drop contextual interface.

Michel Besner, president of Kaydara, said: "When we designed MotionBuilder, our goal was to simplify the complexity of 3D character animations."

MotionBuilder also natively supports Kaydara’s FBX file-interchange format, for 3D data that allows MotionBuilder users to exchange 3D assets and media.

Kaydara MotionBuilder is available this autumn on Mac OS X for $3,495.