It seems like there isn't anything about creating a scene graph with VTK. I have to replace Coin3d (and SoQt) with VTK in a software. Since Coin3d is focusing on scene graphs i don't know how i could replace some classes provided by Coin3d (for example SoSeparator).
I also can't find any tutorials/introductions to creating scene graphs with VTK. Anyone knows some resource for that? Or is using VTK to create scene graphs a bad idea?