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 AI Tweaking.

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PostSubject: AI Tweaking.   Fri 05 Oct 2012, 4:17 am

Okay, since we started this subject in the Kharmin Ghia thread, how about we have a thread to discuss this!

I been using various suggestions and REAL close but, after lowering the AItorquestab and also upping the raceratio and a few other tweaks (tired now, must sleep, will discuss more when we have this going.) my one issue is at Goodwood (my test track) first lap 5 minis (I been starting with the Cooper S since I got a few hundred of them!!) go flying off ass over end at St Marys. Anyone have a suggestion what setting is causing this? Is it just the A!torquestab too low? Or...? Maybe that I lowered AI Corner Grip Usage= to "0.90000"? It seems to be since I tweaked these two settings I got this. And earlier had the corner grip at .80 at bathurst with default AItorquestab and no problems so.......hmm.....

As I said, tired now but will play some more tomorrow.

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PostSubject: Re: AI Tweaking.   Fri 05 Oct 2012, 11:49 am

Den.

This is a clip from VonDutch's guide-

"AIDryGrip = 1.01 // This is the amount of grip that the AI has. Adjusting this is useful if for example all the AI are crashing at a particular spot. By adjusting this number higher along with making other adjustments in the player file etc. you can allow the AI to not crash at that spot. Conversely you can give the AI less grip at some tracks in order to slow them down and make them more humanlike."

Also the last numbers in the setting below is for FWD cars Wink
AIBrakingStiffness=(1.0000,1.0000,0.9000)
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PostSubject: Re: AI Tweaking.   Fri 05 Oct 2012, 2:37 pm

Yeah, the breaking stiffness I set lower and wow what a great result!!

I had it so I had a rather fun race at Goodwood but felt the AI was a wee bit too slow. In 27 laps I went from last to 2nd place and well, I'm just not THAT good a driver! It was when I set the raceratio higher the crashing started.

That drygrip I shall check into. I don't see it in the guide, maybe the Nogrip post? I seem to not be able to find it.
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PostSubject: Re: AI Tweaking.   Fri 05 Oct 2012, 3:32 pm

For some unknown reason there are certain cars which have the same problem you describe about the St Mary's corner Goodwood. The Austin Healey 100 is one of them giving spectacular arse over tit performances Laughing
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PostSubject: Re: AI Tweaking.   Fri 05 Oct 2012, 4:33 pm

I know the beetle does it quite well even in default. heeeee. But as I said 10 cars out on the first lap leaves very few left eventually! hahahahaaa....
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PostSubject: Re: AI Tweaking.   Fri 05 Oct 2012, 8:02 pm

been driving me nuts but I think I'm close. I have it now so only 2-3 cars go off and they manage to get back on track and continue. It's the AISpringRate=

And the raceratio, I believe it's mentioned in the thread, it's I think lower to make them faster. Just about to do a 'proper" test......fingers crossed!! Teehee.
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PostSubject: Re: AI Tweaking.   Sat 06 Oct 2012, 4:54 pm

It would be great if you could sort this out Den as Goodwood is a favourite track of a lot of people and is used online on the Altbierbude.

Good luck m8.

Gee Very Happy
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PostSubject: Re: AI Tweaking.   Sat 06 Oct 2012, 5:08 pm

Well, tests today make me happy! Plus I also tried it with 2009 Mosport.

I figure though that these tweaks would make the tracks incompatible online as I suspect they'd mismatch, along with the cars as I'm also tweaking all the hdc files.

We're going out soon for the day but I will continue testing over the weekend as I think I'm where I'm happy with it and will report on what I did soon........
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PostSubject: Re: AI Tweaking.   Wed 17 Oct 2012, 5:16 pm

Okay, I been at this a while. man it can make you crazy!! Got the AI to not crash in certain corners but usually was then too slow! If it's low for me, I'd say it'd make my settings useless for anyone else!!

So, today I feel real close to where I want it.

A question: Does anyone know in the SVM settings how to decipher the numbers here;

[DRIVELINE]
FinalDriveSetting=2


Has anyone experimented with this one? I assumed it makes the gearing taller or shorter but am wondering which way? Is 0 lower gearing? Or is 2?

I recall at one race the AI would hardly top out at 0 so I assumed it was lower gearing and changed it to 2, but still not sure if it did much or if I'm imagining it.

What I want is a middle of the road setting that I can drop in all of them to save dicking around for every track! I don't see any default cars set at 1, and doing a search on the subject, there seems to be no info.
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PostSubject: Re: AI Tweaking.   Wed 17 Oct 2012, 6:51 pm

Dear Den! Usually "1" is shorter, and increasing the number, longer will be your final drive.
So begin short, and become longer each line you choose, from first line and going below in your .grb file!
As an example:

[FINAL_DRIVE]
bevel=(1,1) // 1.00
ratio=(9, 38) // 4.22........... shorter (1)
ratio=(11, 42) // 3.82.......... (2)
ratio=(12,45) // 3.75
ratio=(11, 39) // 3.55
ratio=(12,40) // 3.33..........(5)
ratio=(12,39) // 3.25............longer (6)
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PostSubject: Re: AI Tweaking.   Wed 17 Oct 2012, 6:56 pm

I set it at 0 after testing at Lemans to see if the AI pulled away or not, lol.

Thank you my friend!!
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ney.dias

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PostSubject: Re: AI Tweaking.   Wed 17 Oct 2012, 7:03 pm

You are not totally wrong, buddy!
Sometimes we can choose "0" (or it becames as default!!!!), and nothing bad happens, but I really don't know how , even when, use the "0" option. Anyway, it's safer you use as I show above! Cheers!
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PostSubject: Re: AI Tweaking.   Wed 17 Oct 2012, 7:28 pm

Okay. I noticed the default svm's were either 0 or 2. I got the feeling on 2, at Bathurst, going up the loooong hill after the pit exit, AI was slowing to a crawl so i felt it was the gearing too high as it gets faster later on other stretches. On 0 at least it still works at Lemans but I also used the PLR section to add gearing and hope it adds the difference. (?) heh.

Here;
AI Power Calibration="2" // Adjustments with AI strength (0=none, or add the following: 1=power, 2=gearing, 4=fuel)

I'm trying to find a "global" setting so I don't have to tweak all 600 or so tracks one at a time!! Very Happy
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PostSubject: Re: AI Tweaking.   Wed 17 Oct 2012, 8:22 pm

Well, try this options to increase your GTL or GTR2:

+++ GTR2 and GTL essential .PLR tips +++

Go to the folder "...\GTR2\UserData" (or "...\GTL\UserData", if it's for GTL) and open the "your-player-name".PLR file with NOTEPAD.

...now search/locate the following lines (which are not in order here), ou entre aspas:

------------------------------------------------------
DRIVING:
Item: Game Options
For more competitiveness of "AI", modify values of "AI Drivers Strenght Boost" ( more, increases speed -(original=0 ) , and automatically will change values of "AI Drivers Strenght" ( that's increases agressivity).

---------------------------------------------------------------------------------
Some more "secrets" for you:
-Tire Sampling= (change value to "0")

-LOD Multiplier Multiplier= (change value to "0.99000")

-Data Acquisition In Race= (change value to "0")

-Disable All Character Anims= (change value to "1")

-FFB steer force average weight= (change value to "0.30000")

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PostSubject: Re: AI Tweaking.   Wed 17 Oct 2012, 9:22 pm

Most of that is done. heh. I don't disable animations though as my PC has no trouble at all running everything at full.

I also use the boost time to time but trying to get it without it first.

That ffb thingo, it add more feel? I use P&G2's ffb settings usually.

I also found a "Pro" setting and turned it on.
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PostSubject: Re: AI Tweaking.   Tue 23 Oct 2012, 12:57 pm

hi guys! not exactly about the topic title but i've i little question about GTL. Is there a line somewhere wich adjust the way the tyres leave a track on the ground while theyre rubbing? If yes, is this adjustable? In GTL it is often the internal wheel but the sensation you have is to drift the two rear wheels...

These videos show what i mean:
http://www.youtube.com/watch?v=iylbefzY6Ck&feature=related

http://www.youtube.com/watch?v=VNp2fnu3JDs&feature=related

in GTL:

http://www.youtube.com/watch?v=NMSZJ5V4Noo
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PostSubject: Re: AI Tweaking.   Mon 24 Dec 2012, 9:36 pm

I'm still working on this. I am real close but adjusting raceratio I keep getting AI either too fast or too slow by a tiny bit. REAL close now but I've also been looking at this line:
AISpec=(0.0000,0.0000,0.0000,0.0000) // 4 ways to express AI speed on track, limit the acceration, max speed, their cornering speed, or their deceleration. 0.0 - 1.0

Now I been thinking, since most of the settings seem to be percentages that setting some of these at 1.000 would be 100% and so possibly more accurate of the real cars?

I'm not sure yet buut was intrigued when looking at it as testing at Goodwood I do find one thing is many AI cars are accelerating rather faster than I would think they can. I only think this because when I dice with them "at speed" we are (some at least the back few lol) even but when they come out of a corner 'BUYH HYE!!" and they're off!! heh.

So far I set the first setting to 1.000 to see what happened as I figured if all else held tru this would theoretically at least mean they are now running 100%.

And so next I'll try all four settings as in:
AISpec=(1.0000,1.0000,1.0000,1.0000) // 4 ways to express AI speed on track, limit the acceration, max speed, their cornering speed, or their deceleration. 0.0 - 1.0

and then tweak the raceratio again if needed.

I did find also that the Minis were braking the rears too hard and spinning off at Madgewick and cured that by going inthe plr file and adjusting this one to this:
AI Brake Grip Usage="0.30000" // Fraction of theoretical brake grip that AI attempt to use

as watching them from behind and knowing the GTL default Mini can tend to lock the rears with heavy braking (though mine are converted to the REALmod files they still do it.) and Madgewick is a fairly easy corner and so found this made that issue go away.

So, I have done many teaks but still working on it and some I've used and than changed back to default etc and currently the plr tweaks at least are as here:


AI Driver Strength="100"
AI Driver Strength Boost="0" // For the hardcore only - strength value added to in-game difficulty levels to make AI faster
AI Power Calibration="0" // Adjustments with AI strength (0=none, or add the following: 1=power, 2=gearing, 4=fuel)
AI Additional Fuel Mult="1.00000" // Additional fuel multiplier for AIs because of their driving style
AI Brake Power Usage="1.00000" // Fraction of theoretical brake power that AI attempt to use
AI Brake Grip Usage="0.30000" // Fraction of theoretical brake grip that AI attempt to use
AI Corner Grip Usage="1.00000" // Fraction of theoretical cornering grip that AI attempt to use
AI Max Load="10000.00000" // Maximum total load to set up theoretical performance tables
AI Min Radius="20.00000" // Minimum radius turn to set up theoretical performance tables
AI to AI Collision Rate="40" // Detection rate per second (1-40) for AI-to-AI collisions
Player Car Equal="0"


I also have changed the grip levels etc and as such my times at Goodwood are about 4 seconds a lap slower than before tweaking but it does feel better to me at least, lol.
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