[osg-users] Edge Detection in a scene

2014-12-12 Thread Roland Reuspert
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

2014-12-12 Thread Christian Buchner
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

Re: [osg-users] Lagging between main camera MV and prerender camera

2014-12-12 Thread Trajce Nikolov NICK
Hi Daniel, I faced the same problem http://forum.openscenegraph.org/viewtopic.php?t=14354 How I fixed and hints from Robert. Hope it helps Nick On Fri, Dec 12, 2014 at 4:08 PM, Daniel Schmid daniel.sch...@swiss-simtec.ch wrote: Hi all Trust me, I searched the forum for a hint but

Re: [osg-users] Lagging between main camera MV and prerender camera

2014-12-12 Thread Robert Osfield
Hi Daniel, Sounds like you are doing updating the m_TextureMatrix prior to the main Camera being updated. By default the Viewer::updateTraversal() gets the modelview matrix from the CameraManipulator after the update traversal. Some camera manipulators track nodes in the scene so have to be