GLOBE_3D: GL Object Based Engine for 3D. GLOBE_3D is a free, open-source, real-time 3D Engine written in Ada, based on OpenGL. Up-to-date GL bindings - portal rendering - binary space partition - object I/O - tools for importing - and more...
More information on... http://globe3d.sf.net
Alire crate: https://alire.ada.dev/crates/globe_3d
Mirror: https://github.com/zertovitch/globe-3d/
G3C provides the main features for 3D-game developers: 3D rendering engine based on openGL, collision detection, physical rules, p2p network... A game-sample will be avaible, binding a wargame, a flight simulator, a first person shooter, a MMOG...