Irrlicht Engine

I tried what you said .. but I still can't get it to work .. I think it has something to do with the Managed implementation of Irrlicht.. cause in native code worked fine ... but in .NET it doesn't work ... I can't figure out why ...

Also .. why isn't there a IMeshBuffer written for Irrlicht.NET ...

Does collision detection only work with bsp maps or can I get it to work with .x files .. and other types of meshes .. ??

I tried to write a program to do it from .x mesh but it didn't work ... any help ?