Impossible Tribar Fractal With Lighting

Drag the 3D view with right mouse button to break the illusion (click the Rotate View to Correct Angle button to restore it - although it might get it backwards, in which case, click again).[br][br]The lighting point is draggable too. Click it to toggle between dragging vertically, and dragging on the horizontal plane.

Information: Impossible Tribar Fractal With Lighting