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Bob Smith
S3 licensed
Moderator
Quote from col :Look up "brush tyre models" - that's what the current LFS tyre physics is a variation of - not Pacejka, which I understand is getting a bit long in the tooth.

Scawen discusses current LFS tyre approach here

You misinterperet. The current model you're all driving around on is an empirically based model that Scawen invented, perhaps similar to Pacejka (I don't know the details). I don't know if this is the same basic model that Scawen has been tweaking since 2002, or if he's ever started over.

The first new tyre model Scawen wrote was based on brush model theory. That model never made public as, although better in some areas, went very wrong when taken outside the areas covered by the assumptions and simplifications needed to make it work. So Scawen started a second new tyre model, based more on tread model theory, however it's ended up too slow for real time use in game, so there's now a third new tyre model, that aims to give results similar to the tread model, yet be sufficiently simpler to run in real time. That's no easy challenge.
Bob Smith
S3 licensed
Moderator
Quote from Zero7 :And oh, Bob, if you're reading this, great stuff - thanks. I think we should have road going sets in official releases of LFS.

You're welcome. Thankfully, you're not the only one who thinks this. Scawen is in agreement also. We'll see what the future brings.
Bob Smith
S3 licensed
Moderator
Check the date of my data. From before rev-limiters.
Bob Smith
S3 licensed
Moderator
Broken record alert:
Quote :This server is currently not licensed. Please contact the server administrator. Other services available on this server such as web services are likely functioning normally. (Cannot read license file)

Bob Smith
S3 licensed
Moderator
Webserver fallen over again?
Bob Smith
S3 licensed
Moderator
I'm sure cPanel was working very recently, now I'm back to my old friend "Cannot read license file"...
Bob Smith
S3 licensed
Moderator
No cPanel access here either (cannot read licence file). Noticed it down a little while ago, has it really been down all this time?
Bob Smith
S3 licensed
Moderator
Quote from KassadGLA :I don't know how :/ And actually I have a Pentium III@550mhz 4mb graphic card... so is hard make gifs with it

The GIF format was created in 1989 and the animation extension was added by Netscape in 1996, thus pre-dating your PC by 3 years. So it should have no problems.
Bob Smith
S3 licensed
Moderator
Quote from three_jump :Finally managed to finish my small report...
http://www.triple7racing.net/content/view/182/1/

Ooh, I get two new nicknames. I should be honoured.

Thanks for the write up though, it was nice to read.
Bob Smith
S3 licensed
Moderator
It works, yay! If only a trial licence, which will no doubt expire soon?
Bob Smith
S3 licensed
Moderator
Quote from franky500 :Based on the e-mail i got back, It will be sorted anytime from 2 - 24 hours.

Up to 29 hours now. Is this likely to be resolved over the weekend? I'm putting out job applications with a link to a web portfolio that I'm making, it would be nice if come Monday morning I had actually created the subdomain I'm linking to.
Bob Smith
S3 licensed
Moderator
Quote from Matrixi :The physics didn't look all that convincing in the trailer either.

Well the cars look like toy cars with almost no inertia. Which is exactly what they are, so I'd say that's good. If they looked anything like regular cars in motion there be a real problem!
Bob Smith
S3 licensed
Moderator
Thanks for letting me know you're on the case.
Bob Smith
S3 licensed
Moderator
cPanel is bust again (Cannot read license file).
Bob Smith
S3 licensed
Moderator
Sorry, didn't notice this reply, should really subscribe to this thread.

If you post more specific details of the problem they I may be able to assist.
Bob Smith
S3 licensed
Moderator
Some more information about what's in your pack would be useful.
Bob Smith
S3 licensed
Moderator
Quote from ColeusRattus :And 3 hours for 12€ is quite okay.

Don't let iRacing hear you say that.
Bob Smith
S3 licensed
Moderator
Agreed. Real engines make music, not noise.
Bob Smith
S3 licensed
Moderator
I can't believe I'm going to dignify this post with a response but since I'm anally retentive...
Quote from Racer X NZ :it will explode spectacually somewhere from 5000 rpm up.

Truck engines can be toast at half that rate.
Bob Smith
S3 licensed
Moderator
If there is an engaged clutch between the engine and gearbox (i.e. in a manual transmission, or auto with lock up), then the engine will continue to reciprocate faster and faster. A rev limiter may ensure a lack of fuel but it won't stop valve float (which even without combustion will still have an effect on engine braking), or your con rods from snapping from the increased stress due to the ever faster moving pistons applying larger forces to them. I don't see heat being a problem. If you kept the rpm very high and the conrods didn't break, then there is the possibility of the the valve springs fatiguing and failing, or without enough bounce, colliding with the pistons.

With just a torque converter, there is no direct connection between the engine and wheels, but the fluid will only allow so much slip, so you'll get the same problem, only it'll happen at a slightly (10%?) higher speed.
Bob Smith
S3 licensed
Moderator
Quote from franky500 :Just got back. Its a mainboard problem, That's why it never came back overnight.

new one is being bought over later tonight, so it should be back in action within the next 12 - 14 hours

Thanks for keeping us posted. You do seem to get a lot of hardware failures though?
Bob Smith
S3 licensed
Moderator
Papa, all of my sites and emails are currently down (30 hours of downtime now!). I am waiting on my host to fix this.
Bob Smith
S3 licensed
Moderator
Thanks for the update.
Bob Smith
S3 licensed
Moderator
I agree, while it's excellent to know Franky's on the case, if it's been this long it's clearly a non trivial issue, it would be nice to have a bit of an update before too much longer.
Bob Smith
S3 licensed
Moderator
Web servers have fallen over again.
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