May I suggest just publicizing the fact that Opensim has historically allowed negative numbers and that there are no plans to make any changes to this? That is: Do Nothing about it.
The one thing I am proposing is that we make no changes for Bullet's benefit here. If the Bullet developers don't want to deal with negative terrain heights that is fine with me, but I don't think Opensim should be changed to accommodate it. Same with the viewers. Either they work right with negative heights or they do not. It isn't a bug for Opensim to allow negative heights, and it shouldn't disallow them -- other than taking note of it I don't think there is anything to do here. On Sun, Apr 27, 2014 at 3:39 PM, David Saunders <[email protected]>wrote: > The best way I can think of is to keep the default at 20m, but allow it to > be set to zero. HAve the ability to to use negative numbers for height. > > 1> This will allow a standard of 20m with the current opensim. > 2> Grid owners can decide if they want to change this default ro say 0m. > Or set up areas of regions that have it set, would look silly if one > region was 20m and the other was 0m unless you make some kind of land > transition > > but the hardest part would be i think is have itne clients work with > negative numbers. I remember back with the build ceilings that where built > into the clients and how long that was removed :) > It would also require OS code testing to find all those places where > negative numbers are assumed does not exists. > > But leaving hte default water level to where it is now would make it more > SL like for people coming over :) > . . > > > On Sun, Apr 27, 2014 at 2:24 PM, Dahlia Trimble > <[email protected]>wrote: > >> Make zero sea level? Wouldn't that change the definition of zero for >> everything else? Not sure that's a good idea... I'd think just enabling >> negative zero would be a better choice. >> >> >> On Sun, Apr 27, 2014 at 10:13 AM, Mister Blue >> <[email protected]>wrote: >> >>> When I built BulletSim, I build for positive only altitudes because I >>> thought that was the rule. The only implementation reason I see for not >>> allowing negative terrain altitudes would be finding all the random places >>> where code makes sign assumptions. >>> >>> If negative altitudes are needed, it would not be too hard to make it >>> happen. I can see the geographically oriented people wanting zero to be sea >>> level and allowing land to be above and below that. >>> >>> -- mb >>> >>> >>> On Sat, Apr 26, 2014 at 8:11 AM, Cinder Roxley < >>> [email protected]> wrote: >>> >>>> Given reasonable constraints, I don't see why viewers wouldn't be able >>>> to adapt to support variable depth. I'd certainly be willing to write a >>>> viewer patch if support cropped up. >>>> >>>> >>>> On Sat, Apr 26, 2014 at 8:52 AM, David Saunders >>>> <[email protected]>wrote: >>>> >>>>> I wounder how hard it would be to modify varasm to allow a start and >>>>> end to the Z axes so we can stack a deep ocean and a space sim to the >>>>> normal sim :) >>>>> >>>>> But then again would the client handle all these changes? (partly do) >>>>> >>>>> So the solution is to make deep water simulators, But any test this? I >>>>> never been asked to set up any sims with deep water so I not experience >>>>> with "outside the box" water :) >>>>> >>>>> I was drawn to opensim with the idea of making "pure" space sims where >>>>> you can float around in real space but I dug into it and I would have to >>>>> rewrite so much code to do this and after that would the client handle >>>>> it? >>>>> So I stuck with making Moon simulators, Low gravity fixed sky.... This >>>>> was a long time ago, back in the early days of opensim. >>>>> >>>>> Now times are changing, I think I might dig into doing it again since >>>>> varasim allow you to make a 4096x4096x4096 regions :) >>>>> >>>>> >>>>> >>>>> On Sat, Apr 26, 2014 at 4:18 AM, Ai Austin <[email protected]>wrote: >>>>> >>>>>> At 04:09 26/04/2014, drWhiet wrote: >>>>>> >>>>>>> even boat creators must keep an eye that the engine does not move >>>>>>> below -0 >>>>>>> >>>>>> >>>>>> Remember the default water level is +20m (adjustable on a per region >>>>>> basis)... with a "normal" terrain base of 0m. >>>>>> >>>>>> Maybe its global warming in the metaverse that raised the sea level >>>>>> :-) >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Opensim-dev mailing list >>>>>> [email protected] >>>>>> http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev >>>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> Opensim-dev mailing list >>>>> [email protected] >>>>> http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev >>>>> >>>>> >>>> >>>> _______________________________________________ >>>> Opensim-dev mailing list >>>> [email protected] >>>> http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev >>>> >>>> >>> >>> _______________________________________________ >>> Opensim-dev mailing list >>> [email protected] >>> http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev >>> >>> >> >> _______________________________________________ >> Opensim-dev mailing list >> [email protected] >> http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev >> >> > > _______________________________________________ > Opensim-dev mailing list > [email protected] > http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev > > -- No essence. No permanence. No perfection. Only action.
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