Rutherford Beresford
Registered User
Join date: 2 Sep 2007
Posts: 45
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08-02-2009 08:35
In real life, when a race car is racing around a track, and that track has highly banked turns, the race car is quite literally capable of riding at almost a 90 degree angle from it's normal position relative to the ground because the centrifugal force that its speed generates lets it cling to the track and not "fall off" the high embankment.
Does such G-Force exist in SL? I mean, if you're driving a car on a track and the track has a sharp turn accompanied by almost a 90-degree embankment, will the SL car fall of the track, or will it hug the road like it's real life counterpart? If the answer is no, can such a thing be... simulated?
Sincerely, Ford
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Lee Ponzu
What Would Steve Do?
Join date: 28 Jun 2006
Posts: 1,770
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Second question first...
08-02-2009 10:03
You could simulate it a couple of ways...
One would be to make the car like a train. Put it on a track. Just make the track invisible. That is, the "track" would be a series of xyz coordinates the car would pass thru.
As for "real" physics, there is a physics engine underneath SL called Havok 4. It does it's best. The problem often is that it can only devote so much CPU time to computing things like collisions, gravity, falling, slipping, etc. So, it might work for slow motion cars, but not for cars going really fast.
Also, there are different ways of making vehicles. Some of them might work on a banked track better than others.
As an experiemtn, maybe make a long, curvy hollow tunnel out of prims. Drive thru it at high speed and see what happens...
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So many monkeys, so little Shakespeare.
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Void Singer
Int vSelf = Sing(void);
Join date: 24 Sep 2005
Posts: 6,973
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08-02-2009 14:51
most inertia calculations in SL are very bad, generally ending up with whatever objects are in contact with each other passing through each other... there are build tricks to reduce this effect but it's a pretty sad state of affairs.
I'll guess you can get a fair amount of banking, but not for an extended stretch, and the speeds would be what you'd hope for.
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