Microsoft's free DirectX SDK, used to access 3D accelerators, sound cards and input devices through a unified interface. Includes Managed DirectX for .NET 1.1 as well as the new Managed DirectX for .NET 2.0.

A complete C# rewrite of the well-known Ogre 3D rendering engine. This is a high-level engine which provides complete abstraction from the 3D API, supports both OpenGL and DirectX, contains a well-designed scene graph model and understands CG for complex shaders. In short, this is a very good component for the rapid development of real-time 3D applications in .NET.

Purple# is a game engine written in C# from scratch. Besides being a 3D engine, this project also integrates audio playback, input device management and simple GUI capabilities.

Explains how to efficiently determine a minimal AABB (axis-aligned bounding box) for any OBB (oriented bounding box)