Such as title, I recently doing a similar to the wisdom of the factory monitoring project, need on the interface program to add some 3 d model, the model can exercise and the actual processing equipment (is the door opened, and the machine interface program on the corresponding machine tool model also opens the door), at first I was using VTK (an open source based on opengl library), but only one (1) model have point card,,, because before I worked in unity, so with the unity, but the unity embedded GUI (WPF, winform what) seems cannot proceed to the mouse interaction,,, so I want to ask you, general this need is what kind of development? Using qt 3 d library? Or 3 d model in the WPF into *. Obj? Directions, genuflect is begged