Try to remove Zbuffer from glass material. Just look at glass section at NL's model.cfg file, maybe it helps you.
That's a typical z-buffer problem: All the transparent parts must be the last meshes to be rendered in order to display the other parts behind them.
The reason: If the graphics engine renders an object, the distance to the camera is written into the so-called z-buffer. Now if later another object needs to be rendered, the engine first checks if the distance of the new object is closer to the camera than the current z-buffer value. If not (i. e. the new object is located BEHIND an earlier rendered object), this object won't be rendered at all, because you couldn't see it anyway. That's where it becomes tricky: DirectX does not take into account that objects can be transparent and objects later rendered behind them can thus be visible, too.
So the only solution to this general problem is to make the glass parts the last objects in the rendering process. If so, everything behind the glass is already rendered when the glass is being drawn over the rest.
Problem solved! Maybe someone else will find help in this thread later.
Locked.
