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Re: 1967 Zandvort race hightlights on Speedvision right now

7 posts by 4 people · 07 Aug 2000 - 09 Aug 2000

TRUSRS85 07 Aug 2000#244504
>I was just flipping channels and came across this. The online schedule says >its a program about "Formula Super Ford". They just showed the start of >Zandy.... hopefully there's more to come. > WOW That was some awesome footage I didn't see the cars slide as much as GPL does hmmmm
Gault 07 Aug 2000 22:23 UTC#244486
I was just flipping channels and came across this. The online schedule says its a program about "Formula Super Ford". They just showed the start of Zandy.... hopefully there's more to come.
Can you see me with a protractor and a ruler, measuring the screen for slip angles? 8-P I think I'll be getting a new system sometime soon! Todd Wasson
I'm pretty sure that what we've been seeing in GPL isn't a lack of grip, but a lack of cornering stiffness in the tires. In other words, we may get the right amount of side force, but it just occurs at a higher slip angle than it did in the real tires. David Kaemmer (in some interview posted online) mentioned they may have "overdone that a bit". I wouldn't call it a limitation in the physics engine at all. It's just a matter of grip vs. slip angle definitions, basically. The model I've been working on does the same thing. If I define the grip vs. slip angle to peak at 4 or 5 degrees, the car doesn't really "slide" any more than this angle, unless you break it loose of course. OTH, setting it to peak at 10 degrees or so let's the car get sideways much more, even though the car will go around a given turn at about the same speed. I'm pretty sure this is what the GPL "excessive sliding" is due to. It'd be interesting to view a replay and actually measure the angle the car is pointing relative to its path in a steady state corner. We could get an idea this way of what's really going on. Also, if we can get a radius on one of the corners in GPL, lateral acceleration could be measured. It's too bad I can't drive with the keyboard worth a darn! My steering wheel will hook into my P-60 (2-3 fps), but not my 400Mhz Laptop. I'd love to see that program on Speedvision. Any idea when it's on? Todd Wasson
Quoted text (30 lines)>True... the '67 drivers seem able to get more out of the "in-line" car than >we do. > >A while back there were some posts suggesting grip in the game was >deliberately underplayed as a gameplay compromise. Whether this is true or >we're just confronted with a limitation of the physics engine I've to date >been unable to establish. > >Either way it's something we'll have to deal with, although, if I were to >find out how to do it, I'd edit my self 5 to 10% more grip for off-line >play. Would be great if it were configurable in an ini file like the one >with RC2000. > >Jan. >=--- >TRUSRS85 wrote... >> > <snip> >> >> WOW >> That was some awesome footage >> I didn't see the cars slide as much as GPL does >> hmmmm > > > > > > > >
True... the '67 drivers seem able to get more out of the "in-line" car than we do. A while back there were some posts suggesting grip in the game was deliberately underplayed as a gameplay compromise. Whether this is true or we're just confronted with a limitation of the physics engine I've to date been unable to establish. Either way it's something we'll have to deal with, although, if I were to find out how to do it, I'd edit my self 5 to 10% more grip for off-line play. Would be great if it were configurable in an ini file like the one with RC2000. Jan. =--- TRUSRS85 wrote... > > <snip> > > WOW > That was some awesome footage > I didn't see the cars slide as much as GPL does > hmmmm
Interesting insight. If you're interested in seeing people corner on the limit, there should be plenty replays floating about on the net. As for actual corner radii, that's a bit of a problem. I wouldn't know how to deduct that. I would suggest you upgrade your rig to enjoy GPL more in the way it was meant to be enjoyed. Then again, your own project might suffer, so I won't. ;-) BTW: I don't even get Speedvision, so I wouldn't know at what moment it will be re-run, if ever. I based my observations on other, yet similar sources (Glen footage). Jan. =--- JTW62074 wrote... > <Snip>
With reference as to what people do because of GPL, I have come to the point I will not even lift an eyebrow when witnessing what normal people would call abberant behaviour. I have even ceased to be amazed at what I do myself. Jan. =--- JTW62074 wrote... > Can you see me with a protractor and a ruler, measuring the > screen for slip angles? 8-P > I think I'll be getting a new system sometime soon! > > Todd Wasson

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