Steam: I don't own a copy of a iGlass (nor will I), but given a proper knowledge of OpenGL it should. All you should need to do is, after rendering and before swapping the buffers, push a new projection matrix onto the stack then make it an orthographic projection, then return to the modelview matrix, push a new identity matrix onto it. After that, you'll probably want to push new attribs onto the stack and reset stuff like blend modes and such. After which, you should be able to render with iGlass.
Obviously, you'll want to pop all the matrices and attribute changes when done.
If you're running Irrlicht with the D3D or Software renderer though, then you're pretty screwed obviously.
Obviously, you'll want to pop all the matrices and attribute changes when done.
If you're running Irrlicht with the D3D or Software renderer though, then you're pretty screwed obviously.