rec.autos.simulators

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://www.racesimcentral.net/

Charlie

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

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

Charlie

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

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....