Samuel, Very strange. Can you send us a reproducible test program ? - Chien Yang Java 3D, Sun Microsystems.
Liu Samuel wrote: >Chien Yang: > I tried it out, but unfortunately failed, the exception comes out again. > Any more suggestions to have this job done? > The weird thing is even I disable these behaviors before I detach the BranchGroup, > this problem still will be there. Really troublesome. > Thanks for your reply! > >Samuel Liu > >----- Original Message ----- >From: Chien Yang <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Cc: [EMAIL PROTECTED] >Subject: Re: [JAVA3D] > >Samuel, > Have you tried doing the detach in a j3d Behavior ? >There is a known MT bug with detach() executed in the user thread. > >- Chien Yang > Java 3D, Sun Microsystems Inc. > > > > >Liu Samuel wrote: > > >>hi all, >>There is a NullPointerException occured when I attempted to detach a BranchGroup >>from the locale, there is a collision detection behavior serves as a child of the >>BranchGroup. The call trace is: >> >>java.lang.NullPointerException >> at >> javax.media.j3d.TransformGroupRetained.getCurrentChildLocalToVworld(TransformGroupRetained.java:1029) >> at >> javax.media.j3d.TransformGroupRetained.getCurrentChildLocalToVworld(TransformGroupRetained.java:1025) >> at >> javax.media.j3d.TransformGroupRetained.transformBounds(TransformGroupRetained.java:1000) >> at >> javax.media.j3d.WakeupOnCollisionEntry.updateCollisionBounds(WakeupOnCollisionEntry.java:410) >> at >> javax.media.j3d.GeometryStructure.processCollisionDetection(GeometryStructure.java:866) >> at >> javax.media.j3d.GeometryStructure.processMessages(GeometryStructure.java:214) >> at javax.media.j3d.StructureUpdateThread.doWork(StructureUpdateThread.java:83) >> at javax.media.j3d.J3dThread.run(J3dThread.java:250) >> >>Seems to be an internel exception. Why? Bug of j3d collision detection? Any >>walkarounds? >> >>Many many many thanks for your help:-) >> >>Liu >> >> > > > > > > =========================================================================== 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".
