They are all completely open, yes :) On Thu, Jun 7, 2012 at 6:55 AM, Bengt Falke <[email protected]> wrote:
> James, are your scripts open for us to view and work with? > Regards/ Void Pipe > > 7 jun 2012 kl. 13:30 skrev James Stallings II: > > I've been working with vehicle scripting on opensims now for over 4 years. > There are lots of historical scripts I have written or adapted from the > work of others, or collaborated on with others in the OSgrid scripting > forums. These include sailing scripts, automobile scripts, and yes, even a > helicopter script. Dave Coyle said over three years ago that my helicopter > was "the most satisfying vehicle he'd ever seen on an opensim'. > > In fact, Owen Oyen and I produced the first vehicles on OSgrid *without > any vehicle functions at all*. These were sailboats that entirely simulated > 'sailboat physics' using llSetRot, llGetRot, llApplyImpulse and friends. > The boat was clunky, did not heel, moved in anything but a smooth fashion, > and was hell on the simulation. My more 'modern' boats can be found on > Littlefield region on OSgrid, as well as a historical display documenting > the work on the aquavita. The working copies of the boats are in a vendor; > those sitting at the dock have had the scripts ripped out to reduce lag on > the sim, don't take copies of those. > > Later (much later than that boat, the 'Aquavita"), I worked extensively > with Kitto Flora to get ODE implemetations of such vehicle scripting > functions working as work now. The work is imperfect, but not all of the > problems are with ODE proper; some have to do with various math functions' > implementation in opensim, and how they differ from the same math functions > as implemented in SL under havoc. The short story is, LL's functions are > broken in terms of how physics actually dictates real-world objects behave; > and the same functions are incomplete here, as the developers who worked on > them refused to implement the broken math, and no resolution could be > reached among the devs as to how to proceed, so the functions on opensims > are incomplete and/or unfinished. > > All of this is more or less ancient history. I've got many very simple > test objects needed to reproduce these errors as test cases in inventory on > the grid, and related mantis entries filed, but quite frankly they've been > ignored for so long I lost interest a couple years back and haven't really > bothered with vehicles since. Who wants to sail a boat that doesn't heel? > Who want's to fly an airplane that has no inertia if a vector component is > on the z-axis? Not to mention, incoming physics 'fixes' often break the > workarounds, with no explanation of how to take advantage of the > improvements. > > It's really discouraging to be told about your now non-functional > helicopter you've been using for most of a year that 'those vehicle > functions never really worked anyway'. > > One of the problems is that to make something work you have to be able to > define 'working' in a manner that lends itself to implementation by nuts > and bolts coders, and (so far) no one has presented themselves that has > that sort of exhaustive knowledge of LL's vehicle physics. > > I'm not a nay-sayer; I really hope this stuff can be made to work someday; > but I long ago lost hope as I'll likely be dead and buried before it > happens at current rates of development, especially if everyone forgets or > ignores all the prior work that has been done or that the issues raised are > not so new as the users encountering them. > > I'm available to help with this, as much or as little as is needed, but > you'll have to be patient with me as, at this point, I've largely forgotten > a lot of what I knew about this, having given up on going blue in the face > trying to get anyone to take notice of the issues I was raising. > > > Cheers > James aka Hiro Protagonist > > > On Thu, Jun 7, 2012 at 4:38 AM, Bengt Falke <[email protected]> wrote: > >> This is getting more and more interesting for each post on the >> subject...... >> >> I think it would be a good thing to collect all the relevant information >> about physics and scripting in the forum so it is available to all >> struggling with this. Are there still active work going on with ODE or are >> our only option to find ways around the problems or hope for the Bullet >> engine? >> >> I saw in another post a reference to a OSGrid scripting forum and I >> assume it is this section you are referring to (please correct me if I am >> wrong): >> http://forums.osgrid.org/viewforum.php?f=5&sid=d584d594240e0917e41480491af385ec >> >> That might anyhow be a good place to post in. >> Void Pipe >> >> >> >> >> _______________________________________________ >> Opensim-dev mailing list >> [email protected] >> https://lists.berlios.de/mailman/listinfo/opensim-dev >> > > > > -- > =================================== > http://simhost.com > http://twitter.com/jstallings2 > http://www.linkedin.com/pub/5/770/a49 > _______________________________________________ > Opensim-dev mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/opensim-dev > > > > _______________________________________________ > Opensim-dev mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/opensim-dev > -- =================================== http://simhost.com http://twitter.com/jstallings2 http://www.linkedin.com/pub/5/770/a49
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