OpenGL Volume Rendering Engine 2008/10/31 JeGX Voreen is an open source volume rendering engine written in C++ and uses OpenGL and GLSL for graphics acceleration. You can download it HERE. [via] Related posts: Voreen 2.5: OpenGL Volume Rendering Engine Volume Rendering Demo Accelerated by GPU OGRE 1.6.0 3D Rendering Engine Released [Direct3D 10] Volume Decals and Volume Roads Demos dEngine: OpenGL ES Rendering Engine for iPhone, Source Code Available