Hi Carsten, Please send us a test program to verify if this is a bug.
Thanks. - Kelvin -------------- Java 3D Team Sun Microsystems Inc. >Date: Wed, 03 Jul 2002 10:13:07 +1000 >From: Carsten Friedrich <[EMAIL PROTECTED]> >Subject: [JAVA3D] ColorInterpolator Bug? >To: [EMAIL PROTECTED] >MIME-version: 1.0 >X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 >Content-transfer-encoding: 7bit >X-Priority: 3 >X-MSMail-priority: Normal >Delivered-to: [EMAIL PROTECTED] >X-Claimed-Received: from lily > >Hi, > >I've written a Java 3D program simulating a model of a physical machine. >I use Java 1.4.0 and Java3D 1.3 Beta 2. The simulated machine basically >consists of all kinds of parts which rotate according to certain events. The >rotations are done by standard rotation interpolators. I use a standard time >elapsed Behavior to peridoically check which rotations are finished and >remove >the Interpolators from the scene graph to save resources (Sidenote: >Is this a good idea?). This works fine so far. > >In addition to the rotations I now also want to change the color of certain >parts >at certain events. If I directly change the color in the Material, this also >works fine. >However if I use a color interpolator here things start to get funny. I >noticed the following >strange behavior: > >* Although the color interpolator seems to run and finally finish, and the >material claims > it has the color it should have according to the interpolator, the color >does not change on > the screen. This happens only for a small percentage of color >interpolators but seems to > be deterministic. On each simulation run the same objects are affected at >the same "time". > The same objects often get changed correctly by color interpolators at >other times though. > >* Objects, for which no color interpolator was started, sometimes change >their color for no apparent reason. > All interpolated objects are of the class Cone and only other objects of >the class Cone get > changed by accident. There are other Objects in the scene which do not >seem to be affected. > >I'm quite sure it is not a bug in my software as it runs without problems >when changing the material >directly. > >The source for the program is small and available if somebody wants to have >a look at it. > >You can also look at the program running on: > >http://www.cs.usyd.edu.au/~carsten/LogicEngine/ > >Enter somthing like: > >a b c >a ~b d > >and press "Create Engine". > >This is the "bug-workaround" version which changes Material directly, but it >might clarify what >I'm talking about. > >Thanks for your help, >Carsten > >=========================================================================== >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".
