S&box uses Valve's Animgraph system for character animation, providing a powerful node-based animation state machine. The system supports skeletal animation, IK, animated ragdolls, morph targets, and animation events.
Key features:
Movie Maker is a timeline-based editor for animating properties in a scene. It's ideal for in-game cutscenes, editing trailers, coordinating timed events, and creating skeletal animations — all without leaving the editor.