Almost. Our current implementation of collision detection isn't
optimal when it comes to CPU utilization. It uses a free running
thread to check for collisions. We are fixing this in the 1.2 implementation
of Java 3D. In general, a behavior waking up once per frame isn't a
bad thing. It will consume CPU, but it shouldn't hit 100%.
Doug Twilleager
Java 3D Team
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> Subject: Re: [java3d] Processor utilization
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>
> Michael got it right: the 100% CPU utilization happens because Java3D is
> animating the scene with continuous updates. Using a WakeOnElapsedFrame(0)
> makes Java3D continously update, since it expects the scene graph to change
> after each frame, so it wants to display the changes as soon as possible.
>
> Doug Gehringer
> Sun Microsystems
>
> > From: "Michael Lorenz" <[EMAIL PROTECTED]>
> >
> > I think the 100% utilization occur because all of the behaviors (including
> > the utility behaviors from sun) are using the WakeupOnElapsedFrame(0) wakeup
> > criterion which calls the processStimulus() method every single frame.
> >
> > Vasilios Darlagiannis wrote:
> >
> > > Hi everyone,
> > > I have tried all the examples about collision detection
> > > that have been send in the mailing list, but all of them have
> > > the same problem. They are making 100% utilization of the
> > > processor and in some more abvance cases this becomes
> > > a problem. Is it natural that the utilization is 100%? Or
> > > those examples are missing something?
> > > I tried to solve the problem by setEnable(b) where b is
> > > true when the mouseBehavior detects a motion and false
> > > otherwise, but it didn't work. Does anybody have another idea?
> > >
> > > Cheers,
> > >
> > > Vasilis
> > >
> > >
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