On Wed, 2004-07-21 at 16:44, Marcus Roth wrote: > > Hi > > > > I am a student and doing my project of using OpenSG on cluster, I have > > managed to run server and client on my cluster, but as a newbie of OpenSG > > there are still something I couldn't understand . > > > > I used decorator to do projection to simulate a 4walls CAVE, and > > multiwindow to splite different viewports to servers, but when i run a not > > very big model, it seems to be very slow, even the tiefighter is rendered > > quite slow, I wondered if I need to do culling n frustum stuff by myself. > > > No, you don't have to do frustum culling. The rendering should't be much > slower than on a local PC. But what do you mean with slow. With the > cluster we got up to 300 frames/s in our 10 Projector cave.If you switch > on sync to v-blanc for your graphics card, you might get a maximum of > 60 frames. If the graphics card ist a little bit to slow to deliver 60 > Frames/s you'll get 30 Frames/s. What is your framerate with the > tiefighter?
Also the type of communication kan have an effect. StreamSock communication get slower for each extra server the client connects to. Multicast communication is 100% scalable as it uses, well, Multicasting ;-) So check which communication you use. /Rasmus > > How fast is the tie-fighter if you start a viewer on one of your cave > walls? > > > For server part, I just use the example from tutorials, but I don't know > > what exactly to do between server and client, does client send the whole > > scenegraphe to each server every frame? or just send whole scenegraphe > > once > > and then just update the transformation, or I need to do it by myself? > > Only the changes to the scenegraph are transfered to the servers. > > > > > I have used the glutwindow and multiwindow in my code, and I saw some use > > of > > passive window in examples, but what exactly passive window do, it seems > > for > > me it can do the same things as glutwindow, also I notice there is a > > clusterwindow, now I have realized the cluster solution by multiwindow, > > so > > I wondered what clusterwindow is for since its name is clusterwndow? :) > > can > > I do the cluster this way: generate 4 individual windows on client side, > > then send them to each server. > > The Multidisplay Window is the fastest way to do rendering on multiple > Servers.The ClusterWindow is the base class for all Windows that handle > cluster Rendering. Derived from this class there is the Multidisplay > Window and the Sort-First ClusterWindow. > > > > > > I got a laptop and a desktop at home, and build them a local network, also > > the desktop connect to internet, but the server and client didn't work on > > it > > I remember it worked once when desktop disconneted from internet, but i > > need my desktop connect to internet all day, and I don't think it should > > affect the server and client, any suggestion? btw, same server and client > > works well on college's cluster. > > > > The client try to find the servers by sending a broadcast message into the > network. The server answers with its name. If this name is not known on > the client, the client is not able to connet the server. > > type hostname on both hosts and try to ping with the given name from the > other host. > > > Marcus > > > > ------------------------------------------------------- > This SF.Net email is sponsored by BEA Weblogic Workshop > FREE Java Enterprise J2EE developer tools! > Get your free copy of BEA WebLogic Workshop 8.1 today. > http://ads.osdn.com/?ad_id=4721&alloc_id=10040&op=click > _______________________________________________ > Opensg-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/opensg-users -- 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 BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=4721&alloc_id=10040&op=click _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
