OGRE

OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++ designed to make it easier and more intuitive for developers to produce applications utilising hardware-accelerated 3D graphics. The class library abstracts all the Details of using the underlying system libraries like Direct3D and OpenGL and provides an interface based on world objects and other intuitive classes. Productivity features * Simple, easy to use OO interface designed to minimise the effort required to render 3D scenes, and to be Independent of 3D implementation i.e. Direct3D/OpenGL. * Extensible example framework makes getting your application running is quick and simple * Common requirements like render state management, spatial culling, dealing with transparency are done for you automatically saving you valuable time * Clean, uncluttered design and full documentation of all engine classes * Proven, stable engine used in several commercial products Platform & 3D API support * Direct3D and OpenGL support * Windows (all major versions), Linux and Mac OSX support * Builds on Visual C++ and Code::Blocks on Windows * Builds on gcc 3+ on Linux / Mac OSX (using XCode)