[osg-users] Edge Detection in a scene

Hi there, Here is a Nebie Question: I'm looking for a way to detect edges in a scene. Let's say i have a scene consiting of simple obstacles like qubes standing around and I want to find all edges of the qubes (to calculate bending/refraction effects around the obstacle. In my current scene

Re: [osg-users] Edge Detection in a scene

I am facing a similar problem myself, to perform edge detection for some toon style rendering. This is what I think I have to do: 1) Render the scene to a Frame Buffer Object, including a depth buffer. 2) Bind said depth buffer to a texture - attach the texture to the state set of a screen