Free and open source 3D modeling and animation software
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 will excel at polygonal modeling, and includes basic tools for NURBS, curves, patches, and animation. Give it a try!

Main features:

  • Platforms:
  • Mac OS X (unstable).
  • GNU / Linux (stable).
  • Win32 (stable).
  • BSD (untested).
  • Solaris (untested).
  • Workflow:
  • Procedural modeling and animation.
  • Interactive tutorials.
  • Unlimited hierarchical undo/redo.
  • Viewing:
  • Camera: pan/tilt, zoom, dolly, modeling and tripod modes.
  • Viewing Modes: Detailed selection of visible features.
  • Hide / unhide geometry.
  • Funny
  • Modeling:
  • Powerful scene graph Procedural Modeling with complete modeling history.
  • 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.
  • Instantiation: Create duplicates without adding gemometry to the scene.
  • Animation:
  • Visualization Pipeline allows arbitrary dataflow - any object property can be connected to any other compatible property.
  • Animate any value.
  • Unlimited number of animation channels.
  • Bezier curve channels.
  • Animate modeling operations.
  • Materials and Textures:
  • Textures with 16-bit float bitdepth.
  • Procedual RenderMan shaders.
  • Rendering:
  • 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.
  • Scripting:
  • Python engine (preferred engine for new script development).
  • K3DScript engine (minimal scripting engine for tutorials / macros).
  • Support for alternate script engine plugins and environments.
  • Compositing:
  • Basic 2D compositing.
  • Bitdepth 16-bit float per channel.
  • Supported Formats:
  • 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: JPEG (all platforms), PNG (all platforms), TIFF (all platforms), OpenEXR (requires optional OpenEXR plugin), BMP (requires optional ImageMagick plugin), SUN (requires optional ImageMagick plugin).

last updated on:
August 23rd, 2014, 5:12 GMT
file size:
30.6 MB
developed by:
Timothy M. Shead
license type:
operating system(s):
Mac OS X
binary format:
Intel only
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