Hi Robert I will answer as good as I can... then maybe Marcus or somebody else can correct me if I'm wrong :-)
On Thu, 2003-12-25 at 13:53, Robert Hinn wrote: > Hi, > > I'm fairly new to OpenSG. I tried the clustering example (rendering one > scene in multiple windows) and it worked fine. > > However, I'd like to have a server that manages a scene graph (all > changes will be handled by this server) which is connected to several > rendering servers (one per client), which render this central scene for > the client. I'd like the rendering servers to be able to render from > different perspectives, and I'd like to be able to add stuff to their > (local) scene graphs (e.g. highlight parts of the scene only for one > client). I'm not quite sure how many clients and servers you are talking about here? The cluster framework was designed so that you have one client, which takes care of interaction like moving the camera around. The client is then connected to a (any) number of servers, which basically are just rendering pipes. So for a 6-sided CAVE, you would have one client and six servers (or one client and five servers, if the client is actively rendering). So, do you want to have more than one client? Your wanted setup could sound like a collaborative one? If so, I think you have to do your own sync'ing etc. via one or more RemoteAspects and the ChangeList. > So basically I want to replicate a scene graph from a central server and > make local changes that are not sent back to the server... > > I thought the RemoteAspect class could replicate a scene graph for me, > but I'm not quite sure how. I know that I can register functors for > certain changes. Do I have to do this to replicate a scene graph, or is > this only for changes that I want to handle in a special way? RemoteAspect and ChangeList is for replicating changes in the scene graph, including creation and removal of nodes. So yes, RemoteAspect is used for replicating the scene graph. Now, I see two possibilities to interpret your whishes: 1. One client and several "active" servers; and 2. a collaborative session with several independent clients. 1. One client and several "active" servers: Here you use the cluster framework and can only move the camera centrally from the client -just like you tried earlier. However, it should be possible to create an active server, where you can e.g. point/pick objects and highlight these. But you can't move any objects 'cause the syncronisation is only one way in the cluster framework! 2. A collaborative session with several independent clients: Here you will have to do your own syncronisation of the scene graph. The syncronisation should still be one way: from the master client to the other clients. But you would setup an independent camera in each client. This should be possible with RemoteAspect and ChangeList. I'm thinking of a similar scheme, but I haven't tried it yet and I haven't heard of anyone doing stuff like this yet! So you can try something new :-) Hope it helps! Merry X-mas and a happy new year to every single OpenSG user and developer :-) /Rasmus -- Rasmus Agerholm Research Assistant VR Media Lab (+45) 9635 8792 Niels Jernes Vej 14 DK-9220 Aalborg Phone: (+45) 9635 8784 Fax: (+45) 9815 2444 http://www.vrmedialab.dk/~rasta ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensg-users
