K-3D is an open source 3D graphics and animation software. It is a free, powerful, and user-friendly 3D modeling, animation, and rendering application. K-3D offers a wide range of features including polygonal and NURBS modeling, animation, texture mapping, lighting, and post-processing effects. It also offers mesh editing, particle systems, and a wide range of rendering options. K-3D is suitable for a variety of tasks from creating simple 3D models to complex animation projects. It is also capable of rendering high-quality 3D graphics for video game development, movies, and TV shows. K-3D is available for Windows, Mac, and Linux operating systems.
Discontinued Autodesk has discontinued its 123d line of applications.