-High performance realtime 3D rendering using Direct3D and OpenGL [more]
-Platform independent. Runs on Windows95, 98, NT, 2000, XP and Linux.[more]
-Seamless indoor and outdoor mixing through highly customizeable scene mangagment. [more]
-Character animation system with skeletal and morph target animation. [more]
-Particle effects, billboards, light maps, environment mapping, stencil buffer shadows, and lots of other special effects. [more]
-Platform and driver independent fast software renderer included. It features z-buffer, gouraud shading, alpha-blending and transparency, fast 2D drawing.
Powerful, customizeable and easy to use 2D GUI System with Buttons, Lists, Edit boxes, ..

-2D drawing functions like alpha blending, color key based blitting, font drawing and mixing 3D with 2D graphics.
Clean, easy to understand and well documentated API with lots of examples and tutorials.

-Written in pure C++ and totally object orientated.
Direct import of common mesh file formats: Maya (.obj), 3DStudio (.3ds), Milkshape (.ms3d), Quake 3 levels (.bsp), Quake2 models (.md2), Microsoft DirectX (.X)... [more]

-Direct import of Textures: Windows Bitmap (.bmp), Adope Photoshop (.psd), JPEG File Interchange Format (.jpg), Truevision Targa (.tga), ZSoft Painbrush (.pcx)... [more]

-Fast and easy collision detection and response.
Optimized fast 3D math and container template libraries.
Directly reading from (compressed) archives. (.zip)
Integrated fast XML parser.
Unicode support for easy localisation.
Works with Microsofts VisualStudio6.0™, VisualStudio.NET™, Metrowerks Codewarrior, and Bloodshed Dev-C++ with g++3.2.
The engine is open source and totally free. You can debug it, fix bugs and even change things you do not like. And you do not have to publish your changes: The engine is licensed under the zlib licence, not the GPL or the LGPL.


http://irrlicht.sourceforge.net/index.html