I heard some people complaining about RBR not having a good tire model...
While poking around, I was pretty darn impressed by this file and I thought
some of you would get a kick out of it.
Here's a small bit of the contents of the Michelin tyres physics file
defining the Dry Gravel tires, one of 14 different tires.
TyreType03 ("(gravel_dry)"
Type 3
RimRadius 0.200000
RimInnerRadius 0.180000
HubOffset 0.000000
CarcassWidth 0.225
CarcassRadius 0.305
TreadDepth 0.01
TreadWidth 0.20
CarcassThickness 0.005
TreadCoverage 0.6
SideWallHeight 0.065
PressureRatio 0.7
TreadElasticity 1500000.0
CarcassStiffnessLateral 256000.0
CarcassStiffnessTorsional 75000.0
CarcassStiffnessVertical 200000.0
WetnessDesign 0.0
WetnessWearFtr 0.95
SFric_T0 1.0
SFric_T1 1.0
SFric_T2 0.7
SFric_T3 0.4
SFric_T4 0.85
SFric_T5 0.75
WearFtr_T0 0.9
WearFtr_T1 0.9
WearFtr_T2 0.9
WearFtr_T3 0.9
WearFtr_T4 0.9
WearFtr_T5 0.9
WetSlope_T0 -0.1
WetSlope_T1 -0.1
WetSlope_T2 -0.2
WetSlope_T3 0.0
WetSlope_T4 -0.1
WetSlope_T5 -0.1
StfFct_P0 1.0
StfFct_P1 1.0
StfFct_P2 1.0
StfFct_P3 1.0
RubMyFct_T0 0.90
RubMyFct_T1 0.97
RubMyFct_T2 0.99
RubMyFct_T3 1.00
RubMyFct_T4 0.95
RubMyFct_T5 0.90
RubMyFct_T6 0.60
RubMyFct_T7 0.50
RubWear_T0 0.5
RubWear_T1 0.8
RubWear_T2 1.0
RubWear_T3 1.4
RubWear_T4 2.0
RubWear_T5 4.0
RubWear_T6 10.0
RubWear_T7 10.0
CrnStf_L0 6000
CrnStf_L1 18510
CrnStf_L2 24452
CrnStf_L3 29534
CrnStf_L4 33659
CrnStf_L5 35702
CrnStf_L6 42000
CrnStf_L7 45000
TrctStf_L0 1000
TrctStf_L1 33150
TrctStf_L2 60000
TrctStf_L3 90450
TrctStf_L4 124090
TrctStf_L5 142920
TrctStf_L6 142920
TrctStf_L7 142920
CrnMyFct_L0 1.01
CrnMyFct_L1 1.01
CrnMyFct_L2 0.99
CrnMyFct_L3 0.96
CrnMyFct_L4 0.94
CrnMyFct_L5 0.92
CrnMyFct_L6 0.88
CrnMyFct_L7 0.7
TrctMyFct_L0 1.05
TrctMyFct_L1 1.05
TrctMyFct_L2 1.03
TrctMyFct_L3 1.000000
TrctMyFct_L4 0.98
TrctMyFct_L5 0.96
TrctMyFct_L6 0.92
TrctMyFct_L7 0.8
SlpPkCrn_L0 0.309923
SlpPkCrn_L1 0.322618
SlpPkCrn_L2 0.332085
SlpPkCrn_L3 0.343071
SlpPkCrn_L4 0.353990
SlpPkCrn_L5 0.369471
SlpPkCrn_L6 0.400000
SlpPkCrn_L7 0.473576
SlpPkTrct_L0 0.250
SlpPkTrct_L1 0.180
SlpPkTrct_L2 0.160
SlpPkTrct_L3 0.150
SlpPkTrct_L4 0.140
SlpPkTrct_L5 0.135
SlpPkTrct_L6 0.128
SlpPkTrct_L7 0.110
)
Mike
http://mikebeauchamp.com
I had a look at those last night... are you able to explain what half of
them mean, or are they just impressive because there's lots of numbers?
:)
Charlie
Mike,
I could actually say whether the criticisms about the tire model are
legitimate. But I know this much, a lot of folks aren't satisfied unless
they can complain about what might be wrong about a game.
It's getting to be so bad sometimes, that it's hard to even read most boards
any more.
Some of the myriad of complaints might be legitimate, though my suspicion is
that 90% of them are bogus.
Some of this obviously comes from the different things that different people
expect from a game.
As to those numbers you quoted, I wouldn't know where to begin to understand
what they meant.
This game looks pretty modable. Any talk of possibly creating some new
tracks or cars?
Alanb
Hey Charlie..
Lets give it a shot shall we?
All the Radius and Width ones are obvious. Carcass ones I think refer to the
contruction of the tire, and how much it can deflect based on teh
stiffnesses it gives. Tread Depth and Width explain themselves..
I think the SFric ones are friction curves, plotted with 6 points. Same with
the WearFtr ones and the WetSlope...
But yeah, the amount of numbers is the impressive part :)
Mike
http://mikebeauchamp.com
Alan Bernardo wrote:
> This game looks pretty modable. Any talk of possibly creating some new
> tracks or cars?
cars seem fairly basic... just had a look then and replaced the evo with
a weird looking xsara as a test... not sure how to get it to unlock
'extra' cars though. Everything looks highly moddable.
Charlie
Mike Beauchamp wrote:
> I heard some people complaining about RBR not having a good tire model...
> While poking around, I was pretty darn impressed by this file and I thought
> some of you would get a kick out of it.
Having these values in the equations is one thing. Getting them right
and getting the proper proportions is another :)
I am not saying anything about RBR though, I don't have it and can't
comment. But really, getting the suspension and tire values _right_ is a
major challenge.
--
Achim
http://users.skynet.be/AchimT
Well said, Mike. There is so much whining in forums these days that it's
almost unbelievable. The most annoying thing is that people so often whine
about stuff they have absolutely no understanding of.
Instead of saying, "LFS's tire model is rubbish - can't even do drifting!"
they should instead say, "Why can't I drift the cars in LFS properly?"
To which someone would probably reply with something about suspension,
steering lock etc.
Just an example....
