The Application Programming Interface (API).

• Camera-related functions
• Parametric Face-related functions
• Geometry-related functions
• Light sources
• Materials
• Matrix-related functions
• Polygon meshes
• Models
• Hierarchies
• Objects (instantiated by Models and form the base of Mesh, Spline etc.)
• Polygons
• Advanced Polygon-related functions
• Scene-related functions
• Splines
• Textures
• Picking