K-3D is free-as-in-freedom 3D modeling and animation software. It features a plugin-oriented procedural engine for all of its content, making K-3D a very versatile and powerful package.
K-3D excels at polygonal modeling, and includes basic tools for NURBS, patches, curves and animation.

K-3D is the free-as-in-freedom 3D modeling, animation, and rendering system for GNU / Linux, Posix, and Win32 operating systems. K-3D features a robust, object-oriented plugin 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'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!

Platforms
* GNU / Linux (stable).
* Win32 (stable).
* MacOSX (unstable).
* BSD (untested).
* Solaris (untested).

License
* GNU General Public License (GPL).

Workflow
1. Procedural modeling and animation.
2. Interactive tutorials.
3. Unlimited hierarchical undo/redo.

Viewing
1. Camera: pan/tilt, zoom, dolly, modeling and tripod modes.
2. Viewing Modes: Detailed selection of visible features.
3. Hide / unhide geometry.
4. Funny

Modeling
1. Powerful scene graph Procedural Modeling with complete modeling history.
2. Selection: Objects, meshes, faces, edges, patched, curves, point groups, points.
3. Geometry types: Polygon, NURBS, subdivision, blobby.
4. 3D Primitives: Cone, circle, cushion, cylinder, disk, grid, paraboloid, polyhedron, sphere, torus.
5. Boolean modeling operations (using GTS library).
6. Text: FreeType2 support.
7. Instantiation: Create duplicates without adding gemometry to the scene.

Animation
1. Visualization Pipeline allows arbitrary dataflow - any object property can be connected to any other compatible property.
2. Animate any value.
3. Unlimited number of animation channels.
4. Bezier curve channels.
5. Animate modeling operations.
6. Materials and Textures
7. Textures with 16-bit float bitdepth.
8. Procedual RenderMan shaders.

Rendering
1. Full RenderMan Support: Aqsis, Pixie, BMRT, PRman, 3Delight, Render Dot C.
2. Extensible support for alternate render engines and models: Yafray.
3. Render OpenGL previews to disk.

Scripting
1. Python engine (preferred engine for new script development).
2. K3DScript engine (minimal scripting engine for tutorials / macros).
3. Support for alternate script engine plugins and environments.

Compositing
1. Basic 2D compositing.
2. Bitdepth 16-bit float per channel.
3. Supported Formats
4. Geometry Formats: Wavefront OBJ, GTS and a raw format are fully supported, other ones are optional and depend on PLIB installation. Experimental plugins include OpenFX, OFF, RIB and X formats.

Image Formats:
1. JPEG (all platforms).
2. PNG (all platforms).
3. TIFF (all platforms).
4. OpenEXR (requires optional OpenEXR plugin).
5. BMP (requires optional ImageMagick plugin).
6. SUN (requires optional ImageMagick plugin).
7. Retrieved from "www.k-3d.org/wiki/Features"

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.

The license of this software is Free Trial Software, you can free download and get a free trial.