Thanks Uma. Yes, I realize that depth-ordered transparency is on the burner, but I'm desperate ... ;) Actually, this capability has become very important for me in the past week. My first implementation is crude because it totally resorts all the transparent objects, instead of some way that better determines which objects *need* to be resorted. It's a bit slow having to reorder 95 objects. If anybody has a good depth-sorting algorithm, I'd love to know about it... ;) BTW, what algo is Sun going to use? -Lee > -----Original Message----- > From: Uma Sabada [mailto:[EMAIL PROTECTED]] > Sent: Thursday, April 19, 2001 2:13 PM > To: [EMAIL PROTECTED] > Subject: Re: [JAVA3D] Exception with using > Group.moveTo(BranchGroup) for > nested Ordered Groups > > > Lee: > > You have discovered a bug with OrderedGroup.moveTo. A > bug 4447901 has > been filed to track this problem and will be fixed in the > next release. Also > note that depth-ordered transparency will be supported in Java3D 1.3. > > > -Uma > Java3D Team > > > > MIME-Version: 1.0 > > Date: Thu, 19 Apr 2001 12:19:04 -0400 > > From: "J. Lee Dixon" <[EMAIL PROTECTED]> > > Subject: [JAVA3D] Exception with using > Group.moveTo(BranchGroup) for nested > Ordered Groups > > To: [EMAIL PROTECTED] > > > > Well, as I mentioned before, I finally got my range > ordering working for > > transparent objects. But the function I use to reorder > objects in the > > OrderedGroup was: > > myOrderedGroup.moveTo(BranchGroup) > > This function is really meant to move a BranchGroup from > one part of the > > scene to another. Well, it worked for a while until I > started having > > OrderedGroup nodes under other OrderedGroups. Then I got this nasty > > thing: > > > > java.lang.IndexOutOfBoundsException: Index: -1, Size: 4 > > at java.util.ArrayList.RangeCheck(ArrayList.java:491) > > at java.util.ArrayList.set(ArrayList.java:323) > > at > > > javax.media.j3d.OrderedBin.addRemoveOrderedCollection(OrderedB > in.java:80 > > ) > > at > javax.media.j3d.RenderBin.updateObject(RenderBin.java:362) > > at > > > javax.media.j3d.MasterControl.updateMirrorObjects(MasterContro > l.java:236 > > 6) > > at > > javax.media.j3d.MasterControl.runMonitor(MasterControl.java:2970) > > at > javax.media.j3d.MasterControl.doWork(MasterControl.java:2591) > > at > > javax.media.j3d.MasterControlThread.run(MasterControlThread.java:28) > > > > So, I switched back to just doing removeChild() on all the > objects and > > re-adding them (using addChild) and the exception went away. > > > > I didn't get a response back, but how are other people > doing this? Do > > people use multiple OrderedGroups or just one big one? I'm actually > > making my ordered groups in 3D studio. > > > > -Lee > > > > J. Lee Dixon > > SAIC - Celebration, FL > > 321-939-7917 > > [EMAIL PROTECTED] AOL: LeeOrlando > > > > > ============================================================== > ============= > > 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". > > ============================================================== > ============= > 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". > =========================================================================== 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".
