[ODE] Simulation is different every time

[Jon Watte]

Do you use dWorldStep(), or dWorldStepFast(), or dWorldQuickStep()?
AFAIR, only dWorldStep() is fully repeatable, unless you save and 
restore the random seed.

Also, I'm assuming you're using a fixed step size, and feed the same 
inputs on the same steps to the simulation -- if you use a variable 
step size, it's never going to be repeatable.

Cheers,

			/ h+


-----Original Message-----
From: ode-bounces at q12.org [mailto:ode-bounces at q12.org]On Behalf Of
Markus Pyykko
Sent: Thursday, December 23, 2004 7:43 PM
To: ode at q12.org
Subject: [ODE] Simulation is different every time


Hello.
I have noticed that my ODE simulation is little different every time i run
it and i'm sure that startup situation is exactly same as it was last
time.
Is this a bug or something?
But most importantly, does anybody have an idea how to prevent this?

 - mankeli

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