ok, sounds good.. but what about branchgroup compile optimizations? can more be performed on a simple branchgroup as opposed to a large complicated one? thanks again, wayne Justin Couch wrote: > > "wayne c deprince jr." wrote: > > > > is it better to have a branchgroup for each "object" (ie. car, tree, > > etc) in the virtual world or have them all in the same branchgroup? > > It depends on how you want to modify the scene graph. We did some > testing here internally with highspeed modifications to the scene graph. > We intended to put the results up publically, but I never got around to > it. > > Basically the test was to compare addition and removal of pre-created > objects in the scene graph. The first test involved a single BranchGroup > to which a thousand objects were added, one at a time. To add a new > object, The BG was detached, a new object added and then re-attached. > The second test was to add 100 objects each with their own BranchGroup. > > The basic result was that for large numbers of objects (above around > 500) the time taken to add and remove is an exponential type curve for a > single parent BG and almost linear for the multiple BG. For small > numbers of objects, it doesn't really matter as both are almost > identical in time. > > -- > Justin Couch Author, Java Hacker > Snr Software Engineer [EMAIL PROTECTED] > ADI Ltd, Systems Group http://www.vlc.com.au/~justin/ > Java3D FAQ: http://tintoy.ncsa.uiuc.edu/~srp/java3d/faq.html > ------------------------------------------------------------------- > "Look through the lens, and the light breaks down into many lights. > Turn it or move it, and a new set of arrangements appears... is it > a single light or many lights, lights that one must know how to > distinguish, recognise and appreciate? Is it one light with many > frames or one frame for many lights?" -Subcomandante Marcos > ------------------------------------------------------------------- > > =========================================================================== > To unsubscribe, send email to [EMAIL PROTECTED] and include in the body > of the message "signoff JAVA3D-INTEREST". For general help, send email to > [EMAIL PROTECTED] and include in the body of the message "help".
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