Thanks Mister for your very helpful pointer. I can now proceed more confidently. R
On Sat, Mar 2, 2013 at 4:17 PM, Mister Blue <[email protected]>wrote: > Depends on your preferences. One advantage with starting with ODE scripts > is they already have adapted to OpenSim[1]. Other than that, there is > something to be learned from any of the scripts. > > -- mb > > [1] Like, several SL vehicle scripts rely on a timer to set velocity and > angle but OpenSim's default minimum timer interval is 0.5 seconds which is > way too large for controlling vehicles. > > > > On Sat, Mar 2, 2013 at 8:27 AM, Dr Ramesh Ramloll <[email protected]>wrote: > >> Thanks for replying Mister. If I understand correct, I might be better >> off starting with an ODE vehicle code and evolve it so that it works on >> BulletSim, rather than starting with an SL vehicle code and try to make it >> work on BulletSim. The path from ODE vehicle to BulletSim vehicle is >> shorter than the path from SL vehicle code to BulletSim code. Let me know >> If my understanding is correct. With scaling of parameters differing etc.. >> and not knowing what these differences are, I think it will be difficult >> for me to debug based on visible behavior alone (possible but am not the >> sharpest tool in the box). >> >> >> On Sat, Mar 2, 2013 at 12:59 AM, Mister Blue >> <[email protected]>wrote: >> >>> [[Full disclosure... I'm the author of BulletSim. :-) ]] >>> The LSL commands for the vehicles are the same for both ODE and >>> BulletSim -- that is, they implement the LSL functions and simple vehicle >>> model defined in SL[1]. That said, which functions are actually implemented >>> differ and the scaling of parameters differ. >>> >>> BulletSim has been working at calibrating its actions to be similar to >>> SL. ODE had some differences from SL and thus vehicle scripts that worked >>> in SL didn't work the same with ODE[2]. BulletSim is trying to change that. >>> The os function osGetPhysicsEngineType() was added to help script writers >>> if they wanted to have vehicles that worked with either physics engine. >>> >>> The current BulletSim vehicle functions is being tracked at >>> http://opensimulator.org/wiki/BulletSim/Functionality/. >>> >>> BulletSim is under active development and, if there are vehicles >>> functions that are wrong or need different tuning, send me a note. >>> >>> -- mb >>> >>> [1] http://wiki.secondlife.com/wiki/Linden_Vehicle_Tutorial >>> [2] For instance, turning force in ODE is about 10 times smaller than in >>> SL so a reasonable turning value for SL would barely turn a vehicle under >>> ODE. >>> >>> >>> >>> On Wed, Feb 27, 2013 at 6:38 AM, Dr Ramesh Ramloll >>> <[email protected]>wrote: >>> >>>> Hello, >>>> I was thinking that before I invest too much time in vehicles, I should >>>> learn from the community about lsl differences for vehicle control on the >>>> two different engines, bulletsim vs ODE. >>>> Is it perhaps better to wait for Bulletsim to get the green light >>>> before investing time in vehicle coding? >>>> Thanks >>>> R >>>> >>>> -- >>>> '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> >> >> _______________________________________________ >> 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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