rec.autos.simulators

GPL and Nascar3 Theory

George Buhr I

GPL and Nascar3 Theory

by George Buhr I » Wed, 29 Apr 1998 04:00:00

I see in the future that 3dfx and Voodoo get bigger and bigger and
eventually the smaller chipmakers will fall by the wayside.  If you look at
most of the board companies making video cards now, almost all of them have
a 3dfx version that they sell.  I personally don't like having to have two
video cards wastings space, but it is by far the fastest solution I have
seen, because you can use this card with any other card, regardless of whose
chip is in it, and find some benefits if it is programmed for voodoo, and
almost all the new games coming out support 3dfx.  Direct 3d may lessen the
need for 3dfx, but it will never take over, a game will always run at least
as fast or faster when it is optimized for the card then on D3D.



>> IMHO, around the end of this year 3d card will hopefully chip standard on
>> most of the PC. In the eventuality that Voodoo-based card do some sort of
>> monopol like Creative (SB) some years ago, I may speculate that there
isn't
>> going to be a non-accelerated version anymore. Many things can happend.
>> OpenGL, D3D, etc... can make some big steps, nobody knows.

>   Lets face it! If you want to play games you NEED a 3D card! Soon,
>there will be a D3D (or something similar) that is truely good and that
>properly standardises the 3D card world. Imagine if when you purchased a
>2D card in the past that it only worked with games/software designed for
>it! Until this "proper" D3D standard appears the gamers of the world
>will be justifyably put off by the current state of things. I have a
>Riva card in my system that was a complete waist of money. If MS or the
>3D card manufacturers don't do something soon then people will just go
>and get themselves a Playstation, etc and who could blame them. The
>current state of affairs is simply a joke!

>    It seems that all the card manufacturers have a standard for their
>own cards that is optimum. There will never be an overall solution like
>D3D that allows all cards to operate as well as with their own
>drivers/API so when does all the rebellion come to an end. I think we
>might need legislation to step in and say "Ok, this is the standard API
>and that is that". Then all card and game makers MUST program and design
>around this new API. Without legislation, this nonsense could go on
>forever!

Jim Sokolof

GPL and Nascar3 Theory

by Jim Sokolof » Wed, 29 Apr 1998 04:00:00


> It probably has to do with the performance of today's computers.
> Somewhere I read that GPL is updating its physics model at approximately
> 200Hz. This is probably not enough if you want to correctly simulate
> modern race cars with high down force, stiffer suspension, stiffer
> tires, much better brakes, lighter wheels and so on. The time constants
> in a modern race car are much smaller compared to old race cars.

> A simple analogy would be if you wanted to do a numerical simulation of
> a mass suspended in a spring. You would have to update the simulation
> faster than the frequency of the system to capture its correct motion.
> If you now increase the stiffness of the spring (as have happened in
> modern race cars) the frequency of the system will increase. Therefore,
> you have to update the simulation more often to capture the correct
> motion of the system.

> Due to this you probably end up at updating the physics model at 500Hz
> or more for a modern race car. This would require a faster computer and
> that is probably why they will wait to use this physics model until the
> average computer is fast enough for simulating a modern race car.

> This could be one of the reasons for simulating older race cars.

> This theory is based on my own (spare time) effort developing a race car
> simulation game using multibody dynamics and fixed step ode-integrators.

Wow! Very few times in my life have I been blown away by technical
acumen and a clear explanation of a reasonably difficult subject in
UseNet. Jesper, the above reads like a job application for an auto-sim
company... :-)

Best of luck in your own efforts, but if you wanted to relocate to the
US, I know of a couple companies that would be very interested in
speaking with you... :-)

---Jim

Byron Forbe

GPL and Nascar3 Theory

by Byron Forbe » Thu, 30 Apr 1998 04:00:00


> interesting:) but i suspect you are putting too much into the idea
> that Nascar3 is papyrus's Great Goal and that all else is just
> a "test". David Kaemmer's goal has always been to simulate motor-
> racing as perfectly as possible, and each game that Papyrus produces
> reflects their improving physics modelling. GPL is simply the next
> step up for them. I expect that by the time Nascar3 is complete
> the physics model they bring over from GPL will have been improved
> in many subtle ways again. And then by the time ICR3/Cart2 arrives
> (just exactly when is difficult to tell as yet, my crystal ball
> is all cloudy) the physics model will probably be improved some more
> still. and they'll keep improving it after that.
> As to why they chose to make a sim based on the '67 F1 season, well,
> i figure they wanted to do something different than the same old
> Nascar and Cart that they've done for the last 4-5 games. And you
> have to admit these '67 cars are awesomely fun to drive:)
> At least they didn't go too far back in time. a fully simulated
> Chariot racing game would be a bit too weird.

   I thought Papy did GPL as a replacement open wheeler sim since the
lost (very regretably) the CART license!
Byron Forbe

GPL and Nascar3 Theory

by Byron Forbe » Thu, 30 Apr 1998 04:00:00


> IMHO, around the end of this year 3d card will hopefully chip standard on
> most of the PC. In the eventuality that Voodoo-based card do some sort of
> monopol like Creative (SB) some years ago, I may speculate that there isn't
> going to be a non-accelerated version anymore. Many things can happend.
> OpenGL, D3D, etc... can make some big steps, nobody knows.

   Lets face it! If you want to play games you NEED a 3D card! Soon,
there will be a D3D (or something similar) that is truely good and that
properly standardises the 3D card world. Imagine if when you purchased a
2D card in the past that it only worked with games/software designed for
it! Until this "proper" D3D standard appears the gamers of the world
will be justifyably put off by the current state of things. I have a
Riva card in my system that was a complete waist of money. If MS or the
3D card manufacturers don't do something soon then people will just go
and get themselves a Playstation, etc and who could blame them. The
current state of affairs is simply a joke!

    It seems that all the card manufacturers have a standard for their
own cards that is optimum. There will never be an overall solution like
D3D that allows all cards to operate as well as with their own
drivers/API so when does all the rebellion come to an end. I think we
might need legislation to step in and say "Ok, this is the standard API
and that is that". Then all card and game makers MUST program and design
around this new API. Without legislation, this nonsense could go on
forever!

Wolfgang Prei

GPL and Nascar3 Theory

by Wolfgang Prei » Thu, 30 Apr 1998 04:00:00


>    It seems that all the card manufacturers have a standard for their
>own cards that is optimum. There will never be an overall solution like
>D3D that allows all cards to operate as well as with their own
>drivers/API so when does all the rebellion come to an end. I think we
>might need legislation to step in and say "Ok, this is the standard API
>and that is that". Then all card and game makers MUST program and design
>around this new API. Without legislation, this nonsense could go on
>forever!

You realize, of course, that the API introduced by any given
government, knowledgeable and impartial as they are on these matters,
would be four-color CGA.

--
Wolfgang Preiss       \ E-mail copies of replies to this posting are welcome.

Uni des Saarlands       \ and U.S. law. You have been warned.

Jim Sokolof

GPL and Nascar3 Theory

by Jim Sokolof » Fri, 01 May 1998 04:00:00


>     It seems that all the card manufacturers have a standard for their
> own cards that is optimum. There will never be an overall solution like
> D3D that allows all cards to operate as well as with their own
> drivers/API so when does all the rebellion come to an end. I think we
> might need legislation to step in and say "Ok, this is the standard API
> and that is that". Then all card and game makers MUST program and design
> around this new API. Without legislation, this nonsense could go on
> forever!

Trust me, the last thing you want is the government poking its nose
into this. NEVER ask for government regulations unless it is truly the
last resort and no other solution is possible... "Hi! I'm from the
government and I'm here to help you..." :-)

---Jim

Byron Forbe

GPL and Nascar3 Theory

by Byron Forbe » Sat, 02 May 1998 04:00:00



> >     It seems that all the card manufacturers have a standard for their
> > own cards that is optimum. There will never be an overall solution like
> > D3D that allows all cards to operate as well as with their own
> > drivers/API so when does all the rebellion come to an end. I think we
> > might need legislation to step in and say "Ok, this is the standard API
> > and that is that". Then all card and game makers MUST program and design
> > around this new API. Without legislation, this nonsense could go on
> > forever!

> Trust me, the last thing you want is the government poking its nose
> into this. NEVER ask for government regulations unless it is truly the
> last resort and no other solution is possible... "Hi! I'm from the
> government and I'm here to help you..." :-)

> ---Jim

   Well, this is of course what I mean ie last resort. Has anyone heard
about a truely good solution? I have heard about Direct X 6 being an
Open GL based API. Anyone prepared to expand on this? All I have heard
personally is that MS has basically conceded the inferiority of Direct X
5 and was looking at Open GL.
Hena Hakkane

GPL and Nascar3 Theory

by Hena Hakkane » Thu, 07 May 1998 04:00:00


>   Well, this is of course what I mean ie last resort. Has anyone heard
>about a truely good solution? I have heard about Direct X 6 being an
>Open GL based API. Anyone prepared to expand on this? All I have heard
>personally is that MS has basically conceded the inferiority of Direct X
>5 and was looking at Open GL.

Check out http://biz.yahoo.com/prnews/980505/ca_msft_di_1.html
Doesn't say anything about OpenGL though. Only time will tell DX6's
worthiness ...

Hena


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