I'm not sure how you are using the behaviors you mentioned. I've been able to use multiple views to view the same scenegraph and interactively and independently control the geometry of the view platform (e.g. orbit about a look at point). I'm not using any of the J3D behaviors though, I'm just catching AWT events straight from each canvas to do drags that drive transforms above each view platform. All seems fine except for a few gremlins as described below. For everyone, I've noticed some peculiarities in doing the above that I'm starting to think might be bugs. Its pretty hard to pin down so bear with me. In each of the "view" branches I have objects to mark the LAP and LFP. These move as the corresponding view geometry changes. Some of them jitter and jump around when any transform in any of the "view" branches is being manipulated. None of the objects in the "world" branches jitters, ever, even if I move the same object from a view branch to the world branch. Here is what I've been able to discover about this so far.... - The jitter does not occur in the first view I create (maybe its the first view canvas I add to the Frame). - The jitter seems to be MORE pronounced when I try to compile the view branches (i.e. I don't think its a timing issue, at least not yet). - The jitter (more like jumping) is more pronounced the closer the object is in the scene graph to the view platform. - For the objects with the really bad jumps, they seem to jump to the origin a lot, and have a significant flickering "ghost" way off in the distance (how's that for a precise description). - Unrelated to views (maybe), I've noticed a similar effect to the above when I tried to interactively control the scale factor of a simple transform group. As long as the scale factors were above 1 it was fine. When any went below 1 the object would start flickering and fliping about an axis. Has anyone else noticed similar effects under similar or different circumstances? --jon > Date: Mon, 18 Jan 1999 14:13:27 -0800 > From: John Sutter <[EMAIL PROTECTED]> > Subject: [java3d] Multiple Views yet? > > So, what's the latest word on multiple views? I read a bit of activity > back in September on java3d-interest. There didn't seem to be any > resolution. > > I have multiple ViewPlatforms each with its own Canvas3D and its own > behaviors to update the ViewPlatform's TransformGroup. I can set up > whatever view I want for each window just fine, but when I let the > behaviors do there things, well, one behavior affects all the canvases > even though there are no connections (different canvas3d's , different > transform groups, no static objects involved (that I know about)). > > Is this still a problem with Java3D? I checked the known problems list > for the word multiple, but no luck.. > > - -- John ____________________ Peculiar Technologies ____________________ Jon Barrilleaux 3800 Lake Shore Ave. Purveyors of [EMAIL PROTECTED] Oakland, CA 94610 Alternate Reality 510.444.4370 voc Augmented Simulation 510.444.0231 fax www.augsim.com and 3D Solutions ===================================================================== To subscribe/unsubscribe, send mail to [EMAIL PROTECTED] Java 3D Home Page: http://java.sun.com/products/java-media/3D/
