Blender is the open source software for 3D modeling, animation, rendering, post-production, interactive creation and playback. Available for all major operating systems under the GNU General Public License.
LightWave (or, more properly, LightWave 3D) is a computer graphics program for 3D modeling, rendering, and animation. Although the program originated on the CommodoreAmiga, it has since been ported to support Mac OS X, Windows, Sgi IRIX, and the render engine has also been ported to Linux platforms. It was once licensed by and is now entirely developed by NewTek.
Lightwave has long been known for its excellent rendering abilities and unusual user interface (for example, icons are not used; instead functions are all given descriptive titles). Like many other 3D packages Lightwave is composed of two parts, an object modelling environment where 3d models or meshes are created and an animation environment where models are arranged and animated for render. Unlike most other packages these two parts are stand-alone programs. There is also a separate rendering application which can be run on multiple machines.
Some functions within LightWave are multi-threaded which means those components can use as many as eight processors in the same machine at the same time when rendering an image.
Programmers can expand LightWave's capabilities using an included SDK and also a special scripting language called LScript. This SDK is based on the powerful C language and almost anything can be created, from a custom shader to a different scene format exporter. LightWave itself includes dozens of free plugins and many more can be obtained from different developers around the globe.