K-3D features a robust, object oriented plugin architecture, designed to scale to the needs of professional artists. It is designed from the ground up to generate motion picture quality animation using RenderMan compliant rendering engines.

The project authors recommend AQSIS as a rendering engine.

K-3D's innovative interactive tutorial system will introduce you to basic use of the program. New tutorials can easily be recorded and shared with the rest of the community.

K-3D allows you to create and edit documents in multiple realtime OpenGL solid, shaded, texture-mapped views. You can even model, animate, and interact with animations while they play back for maximum productivity.

Main Features:
- Procedural modeling and animation.
- Interactive tutorials.
- Unlimited hierarchical undo/redo.
- Camera: pan/tilt, zoom, dolly, modeling and tripod modes.
- Viewing Modes: Detailed selection of visible features.
- Selection: Objects, meshes, faces, edges, patched, curves, point groups, points.
- Geometry types: Polygon, NURBS, subdivision, blobby.
- 3D Primitives: Cone, circle, cushion, cylinder, disk, grid, paraboloid, polyhedron, sphere, torus.
- Boolean modeling operations (using GTS library).
- Text: FreeType2 support.
- Directed Graph allows arbitrary dataflow - any object property can be connected to any other compatible property.
- Animate any value
- Full RenderMan Support: Aqsis, Pixie, BMRT, PRman, - 3Delight, Render Dot C.
- Extensible support for alternate render engines and models: Yafray.
- Render OpenGL previews to disk.
- And more