[ODE] Average Velocity feature and 'Disabling islands problem'

Jaroslav Sinecky jsinecky at tiscali.cz
Fri Nov 3 02:25:13 MST 2006

Opps, sorry. I have just checked the code and realized that the supposed 
problem of counting synchronization is not there.  Step/time counting 
doesn't get reset when a body gets re-enabled because being in active 
island, so it's probed for disabling in next step again and in the 
moment last body in the island reaches idle state, whole island is off. 
Or this has changed or I got it wrong some time ago.
So ... to tune autodisabling of boxstack, we're left again with tuning 
contact or some damping parameters. Also I'm sure solving the old 
correcting velocity problem would help.


Jaroslav Sinecky wrote:
> Christoph Beyer wrote:
>> But there is a big problem left, the problem of disabling whole islands!
>> I think, this is the main reason, because big boxstacks are so unstable 
>> and trembling.
>> Christoph
> Yep, true! There should be some kind of syncronization for bodies in 
> island. Probably a body in island shouldn't disable when it alone 
> reaches auto-disable condition, but only when ALL the bodies in the 
> island meet this condition and then disable them all at once.
> Well, just an idea...
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