road grip, which parameters do control it?

olandese volante

Hi, I am wondering which parameters control the road grip level…

I have several tracks in my championship, with road parameters (in the tdf file) all equals…but grip seems to be very different from track to track, for example melbourne compared with barcelona…
Am I missing something?
 
This is a quiet forum, and track making knowledge is spread quite thinly because of all the different sims, and different mods for those sims. I will have a go...

Are you sure you edited the right material? There are usually several road materials defined, but people can make their own too. Some tracks might have multiple road materials, especially likely if a part of the track has been resurfaced.
 
R Soul said:
Are you sure you edited the right material? There are usually several road materials defined, but people can make their own too. Some tracks might have multiple road materials, especially likely if a part of the track has been resurfaced.
Click to expand...

Yes, each material linked to the racetrack have the same coefficients, I double checked it:
Dry=RoadDryGrip Wet=RoadWetGrip Resistance=0.0 BumpAmp=RoadBumpAmp BumpWavelen=RoadBumpLen Legal=true Spring=0.0 Damper=0.0 CollFrict=0.4 Sparks=1 Scraping=1 Sound=dry

This is true for all tracks, and RoadDryGrip is 1.00 in every tracks too...
 
Make sure all road surface material names match the material name selectors defined in the track .tdf file. The .tdf "Resistance" parameter is usually 0 for road materials, but if it isn't, it can affect the grip feeling too. (There is a full thread on that topic here) Finally, the track geometry itself will indirectly affect grip - a very flat track without camber or off-camber turns will feel more slippery than a track with slightly banked turns.
 
.tdf
AT the beginning: RoadDryGrip=1.00
Is this what you are looking for?
I for one adjust these sometimes to let the AI match the times...
How it works in 3Dsmax I don´t know.

Greets
Pete
 
yes I double (triple) checked it...maybe Jorgen is right, it's a matter of 3D camber...
 
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