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Rec.Autos.Simulators Archive

New screenie--Todd's sim

7 posts by 3 people · 12 Oct 2001 22:50 UTC - 17 Oct 2001 21:33 UTC

J. Todd Wasson 12 Oct 2001 22:50 UTC#158541
Howdy folks. This is no big deal really, but though somebody here might be interested in seeing a new car. I want to thank Ruud van Gaal for helping import this SCGT car that was converted to run in Racer. The first pic is the only new one, so if you saw the last stuff, save yourself some time and bail out after you see the Charger ;-) Too busy with suspension to get into pretty graphics right now, so be warned :-) http://performancesimulations.com/scnshot3.htm Todd Wasson --- Performance Simulations Drag Racing and Top Speed Prediction Software http://PerformanceSimulations.Com
Loooking good. So you've got dodgy graphics ... who cares! You can clearly see the physics from the screenshots - and it looks pretty impressive. Getting a sense of gameplay just from screenshots is some achievement. So, since you mentioned it ... how are you doing the suspension ;) Personally I'm going along the proper constrained dynamics route - Lagrange multipliers and all that. But I'm running into problem after problem, so I'm interested in getting different perspectives on things. If you're using the same techinique as me it'd be good to know that it's going to be worth it after all the hassle. If not, I'd like to know what other options are available ... Mike. "J. Todd Wasson" <[email hidden]> wrote in message news:[email hidden]... > Howdy folks. This is no big deal really, but though somebody here mightbe > interested in seeing a new car. I want to thank Ruud van Gaal for helping > import this SCGT car that was converted to run in Racer. The first pic isthe > only new one, so if you saw the last stuff, save yourself some time andbail > out after you see the Charger ;-) > > Too busy with suspension to get into pretty graphics right now, so bewarned
Quoted text (17 lines)> :-) > > http://performancesimulations.com/scnshot3.htm > > > > > > > > > Todd Wasson > --- > Performance Simulations > Drag Racing and Top Speed Prediction > Software > http://PerformanceSimulations.Com
>Loooking good. So you've got dodgy graphics ... who cares! You can clearly >see the physics from the screenshots - and it looks pretty impressive. >Getting a sense of gameplay just from screenshots is some achievement. > Thanks :-) It took awhile to get that corner just right to snap that picture. lol >So, since you mentioned it ... how are you doing the suspension ;) Muhahahaha ;-) I'll never tell.... >Personally I'm going along the proper constrained dynamics route - Lagrange >multipliers and all that. But I'm running into problem after problem, so I'm >interested in getting different perspectives on things. If you're using the >same techinique as me it'd be good to know that it's going to be worth it >after all the hassle. If not, I'd like to know what other options are >available ... That's too complicated for me and too slow from what I've heard (although it IS more accurate if you model all the masses in the suspension appropriately, which is beyond me). Sorry, Mike, but I'm not talking yet about how I'm doing the suspension, it's taken a few months part time work so far to figure out, write, and debug so far, so it'll remain my little secret for awhile yet. Anyway, it's nowhere near as complicated as the proper constrained approach. Hey, with my goofy graphics, I gotta have a leg up somewhere, right? ;-) For some other options, read http://www.lib.ncsu.edu/etd/public/etd-373202299842941/etd.pdf My method sounds similar to Lotus Engineering's quasi-static approach on page 27. Anyway, the first 29 pages cover a lot of different approaches to things. Todd Wasson --- Performance Simulations Drag Racing and Top Speed Prediction Software http://PerformanceSimulations.Com
In article <[email hidden]>, [email hidden] says... > Too busy with suspension to get into pretty graphics right now, so be warned Pearl paint job, impressive. ;) Cheers, Rod.
> Thanks :-) It took awhile to get that corner just right to snap that > picture. lol Know the feeling ;-) > > >So, since you mentioned it ... how are you doing the suspension ;) > > Muhahahaha ;-) I'll never tell.... > Damn! Well, it was worth a try ... > > >Personally I'm going along the proper constrained dynamics route -Lagrange > >multipliers and all that. But I'm running into problem after problem, soI'm > >interested in getting different perspectives on things. If you're usingthe > >same techinique as me it'd be good to know that it's going to be worth it > >after all the hassle. If not, I'd like to know what other options are > >available ... > > > That's too complicated for me and too slow from what I've heard(although it > IS more accurate if you model all the masses in the suspensionappropriately, > which is beyond me). Sorry, Mike, but I'm not talking yet about how I'mdoing > the suspension, it's taken a few months part time work so far to figureout, > write, and debug so far, so it'll remain my little secret for awhile yet. > Anyway, it's nowhere near as complicated as the proper constrainedapproach.
Quoted text (7 lines)> Hey, with my goofy graphics, I gotta have a leg up somewhere, right? ;-) > > For some other options, read > > http://www.lib.ncsu.edu/etd/public/etd-373202299842941/etd.pdf > > My method sounds similar to Lotus Engineering's quasi-static approach on
page
Quoted text (7 lines)> 27. > > Anyway, the first 29 pages cover a lot of different approaches to things. > > > >
Thanks for the link, I'll have a look through. Anyway, after thinking about it over the weekend I've decided the best thing is for me to just plough on with the Lagrange stuff and see if I can get it to work. I've done quite a bit on it already, and it shouldn't be too far from working so it seems a shame to waste it all. And it should give me better results in the end than any other method.
Quoted text (8 lines)>Thanks for the link, I'll have a look through. Anyway, after thinking about >it over the weekend I've decided the best thing is for me to just plough on >with the Lagrange stuff and see if I can get it to work. I've done quite a >bit on it already, and it shouldn't be too far from working so it seems a >shame to waste it all. And it should give me better results in the end than >any other method. > >
I understand. Once you've spent so much time on something, it seems a pity to abandon it. I don't use Lagrange stuff because I'd have absolutely no idea where to even begin :-) I'm not as mathematically inclined as a lot of you guys! Todd Wasson --- Performance Simulations Drag Racing and Top Speed Prediction Software http://PerformanceSimulations.Com

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