Thanks Dahlia for replying (on a Sunday night). This clears things a bit for me. I was wondering if oars also contains UUIDs for those stuff that need permanent UUIDs. Or are they regenerated, during import into a completely different install of opensim? Thanks again. R
On Sun, May 5, 2013 at 7:48 PM, Dahlia Trimble <[email protected]>wrote: > UUIDs can be temporary or permanent depending on what they are used for. > In general they are used wherever a unique key is needed for accessing some > other data. Assets such as textures or notecards are assigned permanent > UUIDs, and temporary assets such as avatar baked textures get temporary > UUIDs. UUIDs are used pervasively throughout OpenSimulator and are usually > assigned by a random number generator. It's generally believed that the > probability of 2 randomly generated UUIDs not being unique is so small that > it will essentually never occur (UUIDs are essentially 128 bit integers) so > they can be used freely without risk. Of course this all depends on the > quality of the random number generator used to generate the UUIDs ;) > > There are also cases where UUIDs can be generated by a hashing algorithm. > Usually in such cases this is used to detect and prevent duplicate data > being stored, i.e., if several people upload the same texture, then only > one copy of the texture need exist in an asset server that uses such a > hashing scheme. > > > On Sun, May 5, 2013 at 3:53 PM, Dr Ramesh Ramloll <[email protected]>wrote: > >> Hello, >> I understand that the UUID are unique only with respect to a given >> session of the sim. Correct me if I am wrong. So UUIDs change, this can be >> tested trivially. >> But how do notecards save avatar appearance? This would suggest the UUIDs >> of clothes or attachments would not change across sessions. So am a bit >> confused about how notecard data containing UUID pointers still work in a >> different session. >> Thanks >> Ramesh >> >> -- >> 'Consider how the lilies grow. They do not labor or spin.' >> *Rameshsharma Ramloll* PhD, CEO CTO DeepSemaphore LLC, Affiliate *Research >> Associate Professor*, Idaho State University, Pocatello, ID 83209 Tel: >> 208-240-0040 >> Blog <http://deepsemaphore.posterous.com/>, >> LinkedIn<http://www.linkedin.com/in/rameshramloll> >> , DeepSemaphore LLC <http://www.deepsemaphore.com>, Google+ >> profile<https://plus.google.com/103652369558830540272/about> >> >> _______________________________________________ >> Opensim-users mailing list >> [email protected] >> https://lists.berlios.de/mailman/listinfo/opensim-users >> > > > _______________________________________________ > Opensim-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/opensim-users > -- 'Consider how the lilies grow. They do not labor or spin.' *Rameshsharma Ramloll* PhD, CEO CTO DeepSemaphore LLC, Affiliate *Research Associate Professor*, Idaho State University, Pocatello, ID 83209 Tel: 208-240-0040 Blog <http://deepsemaphore.posterous.com/>, LinkedIn<http://www.linkedin.com/in/rameshramloll> , DeepSemaphore LLC <http://www.deepsemaphore.com>, Google+ profile<https://plus.google.com/103652369558830540272/about>
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