Crystal Space

Crystal Space is a free, open source, portable, modular, and extensible 3D software development kit (SDK) written in C++. It is suitable for creation of 3D games and other 3D visualization applications. It supports true six degrees of freedom, colored lighting, lightmapped and stencil based lighting, shader support (CG, vertex programs, fragment programs, etc.), mipmapping, portals, mirrors, alpha transparency, reflective surfaces, 3D sprites with skeletal animation, procedural textures, particle systems, volumetric fog, hierarchical transformations, physics, bindings for Java, Perl, and Python, and many additional features. Crystal Space runs on Microsoft Windows, MacOS/X, and Unix platforms (including GNU/Linux, BSD, Darwin, etc.). Crystal Space falls under the GNU Lesser General Public License (LGPL). A copy of of the LGPL can be found in the file LICENSE alongside this README. This license allows you to use Crystal Space as a library in your products, even commercial products, but modifications to the library or derivative works incorporating parts of the library must be made freely available to everyone, under the LGPL's terms. The extensive Crystal Space manual features build instructions, tutorials, HOWTO's, and numerous conceptual and technical discussions. To build Crystal Space, consult the instructions in the "Building and Installing" chapter. The manual can be found in the source tree at CS/docs/html/manual/index.html, or online at: Information on how to obtain latest changes to the project are detailed in CS/docs/history.txt. Older changes are detailed in CS/docs/history.old.