[ODE] Inside ODE
François Beaune
francois.beaune at enst.fr
Mon Mar 11 17:29:02 2002
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Hello everyone,
I guess this message is primarily intended for Russ, as it adresses
the deep functioning of ODE. All replies are welcome however !
I was wondering how ODE could achieve that level of robustness
and stability (not to mention the pretty good accuracy of produced
simulations !) without doing any time subdivision or performing any
root-finding process in order to find the approximative time of impact
of two interfering bodies.
As far as I understand, it sounds to me that ODE detects collisions
then advances a fixed amount of time, whatever are the penetration
depth of each pairs of colliding bodies.
Any clues ?
Cheers,
Fran=E7ois
PS : please apologize my poor english, I'm a french speaker.
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<DIV><FONT face=3DArial size=3D2>Hello everyone,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I guess this message is primarily =
intended for=20
Russ, </FONT><FONT face=3DArial size=3D2>as </FONT><FONT face=3DArial =
size=3D2>it=20
adresses</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>the deep functioning of ODE. All =
replies are=20
welcome however !</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I was wondering how ODE could achieve =
that level of=20
robustness</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>and stability (not to mention the =
pretty=20
good accuracy of produced</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>simulations !) </FONT><FONT =
face=3DArial=20
size=3D2>without doing any time subdivision </FONT><FONT face=3DArial=20
size=3D2>or performing any</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>root-finding </FONT><FONT face=3DArial =
size=3D2>process=20
in order </FONT><FONT face=3DArial size=3D2>to find the approximative =
time of=20
impact</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>of two </FONT><FONT face=3DArial =
size=3D2>interfering=20
bodies.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>As far as I understand, it sounds to me =
that ODE detects collisions</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>then advances a fixed amount of time,=20
whatever are the penetration</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>depth of each pairs of colliding=20
bodies.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Any clues ?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Cheers,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Fran=E7ois</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>PS : please apologize my poor english, =
I'm a french=20
speaker.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML>
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