https://wiki.secondlife.com/w/index.php?title=RESTITUTION&feed=atom&action=historyRESTITUTION - Revision history2024-03-29T15:08:09ZRevision history for this page on the wikiMediaWiki 1.36.1https://wiki.secondlife.com/w/index.php?title=RESTITUTION&diff=1158941&oldid=prevScalar Tardis: Paste of Andrew Meadows describing it: https://lists.secondlife.com/pipermail/secondlifescripters/2007-April/000806.html2011-11-30T18:48:54Z<p>Paste of Andrew Meadows describing it: https://lists.secondlife.com/pipermail/secondlifescripters/2007-April/000806.html</p>
<p><b>New page</b></p><div>From: https://lists.secondlife.com/pipermail/secondlifescripters/2007-April/000806.html<br />
<br />
Andrew Meadows andrew at lindenlab.com<br />
Fri Apr 13 07:31:56 PDT 2007<br />
<br />
Havok has a per-prim property called 'restitution' whose range is [0,1].<br />
Basically it is a measure of how much energy is conserved on a collision.<br />
A restitution of 1 would be complete conservation of energy and 0<br />
would be none. Each object's restitution contributes during a collision,<br />
so a bouncy ball still won't bounce high on a soft floor.<br />
<br />
The allowed restitution of the various materials in SL are kept low<br />
for stability purposes. High restitution combined with LSL<br />
actions might have modes where unlimited energy could be pumped<br />
into the system. There is a large amount of work to do before we'll<br />
be ready to provide more liberal restitution settings.<br />
<br />
Havok's objects are all rigid bodies, so every collision is "instant" in<br />
the sense that the object does not flex. The newer versions of Havok<br />
have "soft body dynamics", although I believe it comes with a significant<br />
performance penalty, more than we would want to incur at this time.</div>Scalar Tardis