rec.autos.simulators

GPL physics question.

Mats Lofkvis

GPL physics question.

by Mats Lofkvis » Wed, 03 Apr 2002 17:21:37


> I always thought GPL scaled very nicely, form its early days in 98 with
> 640x480 and a rendition card to today's faster processors and graphics
> cards. Ok so getting 36 fps looked pretty awful compared to today's PCs
> but it was quite playable.

Yes, it was playable, but it is amazing how much my consistency and
speed improved at almost every single hardware upgrade I have done.
So even though GPL is fun on lesser hardware, it also is a huge
handicap imho. Especially when racing online.

      _
Mats Lofkvist

Remco Moe

GPL physics question.

by Remco Moe » Wed, 03 Apr 2002 19:19:55







>> I dare you to name a few driving games (beside N4 and N2002) with a
>> better PHYSICS model as GPL.

>F1 2001.  No, I'm not kidding.  It's true some of the track modelling is
>questionable, and like all sims there are people claiming that the grip
>or the aero or something is wrong, but I think the underlying physics
>code is as solid and comprehensive as you will find anywhere.

>> I fully disagree, beside N4 & N2002, GPL has the most sophisticated
>> physics model of todays racing games. There is no flaw, only parts
>> which aren't modelled.

>Sophisticated?  I don't think so.  While I can't prove this, I suspect
>very strongly that GPL uses the "simplified suspension model" with
>virtual links, roll centers, equivalent wheel rates, etc.  I think that
>is why we see "wheel rates" rather than spring rates in the setup
>screen.  I think this is why the cars feel so wallowy and imprecise
>compared to other sims.  I also think doing a full kinematic suspension
>model at 288 hz on the average P200 that was around when GPL was
>released would have been impossible.  More modern sims have taken
>advantage of more modern hardware and are doing more thorough and
>comprehensive physics modelling.  F1 2001 for example appears to have a
>full kinematics model of the suspension.  GPL was excellent for the time
>it was released, but that was three years ago.  Computing power has more
>than quadrupled since then.

I meant sophisticated in relation with other sims. This because the
poster I replied to let it sound as if GPL has the worst physicsmodel
of all racingsims ever released. (I must add that I'm aware of the
fact  that he mixed the physicsmodel and the values you put in a
physicsmodel up, and yes, some data in GPL might be off)

About F2001, I seems to have a decent physicsmodel, but somehow it
doesn't feel right to me. Of course, it could be the controller setup,
which plain sucks IMO. Also, since you can't see the suspension
working when you view the replay, it's kinda hard to judge things.

Remco

Haqsa

GPL physics question.

by Haqsa » Thu, 04 Apr 2002 01:31:56




> I meant sophisticated in relation with other sims. This because the
> poster I replied to let it sound as if GPL has the worst physicsmodel
> of all racingsims ever released. (I must add that I'm aware of the
> fact  that he mixed the physicsmodel and the values you put in a
> physicsmodel up, and yes, some data in GPL might be off)

Well no, I certainly wouldn't call it the worst.  I guess I need to be
more clear.  I enjoy GPL, even though (or perhaps because) it is
currently beyond my ability.  But I think people should be aware that
GPL is about feel rather than realism.  It has the most visceral feel of
any sim I have played, but I do think we have enough comments on record
from real racers who have tried it (including one which is quoted in the
Alison Hine interview) to say that it is not the most realistic sim
around.  Fun - yes.  Deep and involving - yes.  Convincing and immersive
feel - yes.  Realistic - no, at least not to the degree that most people
seem to think.  But it is unrealistic in the opposite sense from an
arcade game - arcade games are arbitrarily simpler, GPL seems
arbitrarily more difficult.  Some people like that, but it shouldn't be
mistaken for realism.

Hmm.  I think a lot of people would agree with you on that, but I'm not
sure I do.  The only other modern F1 sims I have played are GP3 and
F1CS2K, and I definitely feel like both the physics accuracy (in terms
of comparing to real world telemetry) and the feel are better in F1 2001
than in those two.  But I certainly agree that the controller setup
sucks and really needs to be fixed for F1 2002.

Andre Warrin

GPL physics question.

by Andre Warrin » Thu, 04 Apr 2002 01:42:12



Nah.. after 5 months of frustrating experimenting I allready got my
controller working in F1 2001!

Andre

Haqsa

GPL physics question.

by Haqsa » Thu, 04 Apr 2002 02:46:30

LOL!  Exactly.  ;o)




> >than in those two.  But I certainly agree that the controller setup
> >sucks and really needs to be fixed for F1 2002.

> Nah.. after 5 months of frustrating experimenting I allready got my
> controller working in F1 2001!

> Andre


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