Adian,
Pretty early, I gave up on the Java 3D clock as a basis for simulations of
physical systems. It's based on the system clock, and that keeps running
whether you get to compute anything on your model or not. If you're doing
any step-wise solving (numerical integration, inverse kinematics, etc.) that
use the last state as an initial guess for the current state and you depend
for convergence and stability on their proximity, you're screwed.
I built my own clock that ticks once every time I compute a time step, so,
as long as I don't worry about its slip with respect to the real time clock,
it's sort of manageable.
Until you say "parallel" or "distributed," that is. Then keeping track of
things becomes a real frontier simulation problem.
The current version of my clock is sort of described (unfortunately buried
under a lot of other stuff) at:
http://www.brockeng.com/VMech/IK/IKSG.htm
Its operation seems to be pretty solid for WinNT, but there remain big
problems with Win98 (and I don't know what else) that I haven't been able to
get smart enough to begin figuring out.
Cheers,
Fred Klingener
Brock Engineering
----- Original Message -----
From: "Adriano Cavalcanti da Silva" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, December 06, 2000 12:45 PM
Subject: [JAVA3D] 3D Simulator with Parallel Processing
> Dear Colleagues,
> I am trying to conduct one industrial simulation concurrently with the
> visualization... and the
> synchronization between the simulation state and the correspondent
visualization are
> even more critical
> once both are intended as parallel program... so both are shearing common
data. Has
> anyone some
> suggestion about more information on this issue.
> Best regards,
> Adriano
> --
> -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
> MSc Ing. Adriano Cavalcanti
> Fraunhofer IGD . A5 . Zi 109 Darmstadt
> http://www.igd.fhg.de
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