One option is to do all of your updates in a behavior, which garuntees that
the updates are applied in the next frame. There are some gotcha's to this,
such as Appearance updates taking one frame and geometry updates taking 2.
I would suggest using a behavior to force 2 frame updates before any
capture. This can be done with a WakeOnElapsedFrames condition.
Sent: Sunday, August 29, 2004 6:25 AM
Subject: [JAVA3D-INTEREST] Scene updates
In my code I'm applying modifications to the Appearance and/or the
transforms of various objects in a scene through a Swing gui.
The scene is attached to an offscreen Canvas which I use to take snapshots
of the scene.
Probably due to the asynchronous design of Java3D (or maybe it's my
mistake), quite often I do not get my snapshots up-to-date with the params I
set with the gui.
Is there a way to wait for the completion of the scene updates before taking
a snapshot ?
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Thanks for the hint Mike.
Anyway I would say that all my scene synch troubles vanished automagically by adding the following line to the scenegraph construction:
I also set the priority of java3d to 1:
Now everything works very well. Do not ask me how it can be possible. It is most likely an issue of Java3D when it renders offscreen.
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