Collision detection and dynamics simulation.Graphical editor for defining interactive behavior without programming.Python scripting access for custom and procedural animation effects.Audio playback, mixing and editing support for sound synchronisation.'Ipo' system integrates both motion curve and traditional key-frame editing.Vertex key framing for morphing, with controlling sliders.Non-linear animation mixer with automated walkcycles along paths.Armature (skeleton) deformation with forward/inverse kinematics, auto skinning and interactive 3D paint for vertex weighting.Python scripting access for custom tools.Editing functions such as extrude, bevel, cut, spin, screw, warp, subdivide, noise, smooth Soft selection editing tools for organic modeling.'Smooth proxy' style catmull-clark subdivision surfaces.A range of 3D object types including polygon meshes, NURBS surfaces, bezier and B-spline curves, metaballs, vector fonts (TrueType, PostScript, OpenType).Available for Windows, Linux, Irix, Sun Solaris, FreeBSD or Mac OS X.

Blender is an open source software for 3D modeling, rendering, animation, post-production, interactive creation and playback.

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