Hello OpenSceneGraph community, we want to use OpenSceneGraph for a parallel rendering system. The scene graph should be located on a central computer which gets the user input, modifies the scene graph (with draggers) and displays the rendered image. The rendering should be done on other computers. We want to use a sort-last approach, where the geometry is distributed to these other computers and they send back an image with depth information that is composed on the central computer. My question is: How can I get the nodes which are determined visible after culling? I just want to know these nodes, so that I can get their vertex, color, ... data and send it together with the current model-view matrix via MPI to the other nodes. The other nodes should be able to render the objects and they should not need an own scene graph themselves. One solution I thought of is setting the DrawCallback on all Drawable nodes inside the scenegraph. I think this own DrawCallback can read out the vertex, color, ... arrays (for example if it is a Geometry node) and get the current model-view matrix for that node and send the data. Do you think this own DrawCallback is the right approach?
Regards, Benjamin Eikel _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
