K-3D is a free 3D modeling and animation software package. It combines flexible plugins with a visualization pipeline architecture, making K-3D a versatile and powerful tool for artists.
K-3D features a robust, object-oriented plug-in architecture, designed to scale to the needs of professional artists, and is designed from-the-ground-up to generate motion-picture-quality animation using RenderMan-compliant render engines. We strongly recommend the Aqsis render engine for use with K-3D. K-3D allows you to create and edit documents in multiple real-time OpenGL solid, shaded, texture-mapped views. You can even model, animate, and interact with animations while they play back for maximum productivity.
New artists will find K-3D easy to understand, and professionals feel right at home. The powerful, node-based visualization pipeline allows more possibilities than traditional modifier stacks or histories.
Industrial-strength standards form the foundation on which K-3D builds - including native RenderMan(TM) support that integrates tightly with the K-3D user interface.
>Visualization Pipeline Architecture
>Unlimited Hierarchical Undo
>Full RenderMan Integration