Re: Driving on ice possible with TORCS ?

Hi Vaclav

I just thought so far about wet surfaces, they are currently not 
supported, but I understand the behaviour and have a reasonable 
simulation model for it.

What properties does driving on ice have, is it just a low friction 
coefficient (you can set this in the surface definition of the xml track 
description), or does a water film build up between the ice and the tire 
when the slip is "burning" enough energy, maybe it is even dependent on 
the outside temperature (e.g. around -5°C there builds a water film but 
with -40°C it stays just solid, does colder ice lead to higher friction, 
...)?

If you want to play with lower friction, e.g. back up wheel-2.xml, then 
go to <section name="asphalt-w2">, look for
<attnum name="friction"           val="1.15"/>
<attnum name="rolling resistance" val="0.0012"/>

and set e.g. the friction to 0.5 or lower and check if that meets your 
desired behaviour. Beware, the robots might fail badly then, but just 
give it a try.

Let me know about your findings.

Best regards

Bernhard

On 11/07/2012 12:21 PM, Vaclav Peroutka wrote:
> Hello,
>
> today I found TORCS. I have read FAQ ( btw there are bad links to the
> FAQ file chapters) and HOWTOs but I could not find answer to my
> question. Is it possible to set surface parameters ? I would like to
> simulate driving on the ice, snow or wet surface.
>
> Can TORCS support this feature ?
>
> Thank you in advance,
> Vaclav
>
>
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