GT2 - TIRE COMPOUND DATA FOUND
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- Опубліковано 15 вер 2024
- GT2 JP's DIRT COMPOUND data replacing the Super Softs on my PAL copy.
I like making progress in research :p
Essentially, this means that JP's sliding rally physics can be ported to every other region (also, every region has different dirt physics according to the data i researched)
However, because we currently can't edit Rally opponents or any other pre-recorded replay data, doing so wil break the aforementioned opponents. Each thing comes in due time~
something else i noticed is that in the glitched NTSC-U version, a bug would cause the vauxhall tigra ice car with dirt tires to appear as a possible opponent for the grand valley endurance, if vauxhall cars weren't locked from being used outside of the english PAL, we would have actually been able to see how durable the dirt tires are compared to other compounds
So the dirt drift thing is caused by the tire compound? Cool
go submaniac!! why are you playing a pal version btw?
That's what i grew up with, and it's also the final version of GT2, with the most fixes dlne to it. That's why it doesn't have multiple versions.
@@submaniac93 i did as well, but since i discovered the 60 hz i cant go back unless its an rpg with no pc version, either way, thank you for your efforts
does the tire data do the same in gran turismo 3 or 4?
I assume so, but i have done no research on those
I always thought it was silly that you couldnt use dirt tires on all the cars or on tarmac tracks. If i want to use a F1 car for rally thats my choice :]
also by region you mean pal, ntsc/u, and ntsc/j dont you? Or do any of the pal version languages have differences too like how in the german pal version opel is called vauxhaul and i think theres a few cars you can only buy in some of the pal version's languages but not in the others. Not sure how they did it but maybe the language menu could be a nice easy option for a hack options menu.
Yeah I meant PAL/U/J specifically, but every language pretty much is its own game and can have different physics, races, opponents and such as far as i'm aware. Opel, Vauxhall, Honda and Acura are entirely different manufacturers, completely independent from one another. They're just made unselectabel in the languages they appear/don't appear in. That's why GT2+ has them all at once.
But then GT3 has Acura available as well as Honda for some reason
Probably to increase the variety instead of catering to the various regions. Locking manufacturers was already not a great idea imo, though it made some sense relative to where you were playing from.
Hey congratulations on the find kudos to you 👍
i would love to have that aswell, are you able to make a delta patch?
Hi. It's impressive what you are achieving here. Didn't knew both TCS and ACS actually worked, for example. Or that the tires, not the surface, gave the specific grip physics for the car. I have 2 questions, both related to tires. 1. In your research, have you found a reason why the tires wear out at the same rate? They all wear like, I'd say, Soft tires. 4-5 turns to warm up, around 2-5 laps of max grip and steadily wears after that. Is there a way to change that or is it a problem with the game engine and thus unfixable? And 2. Is there a way to make all races have tire wear, without totally editing the game files, similar to GT4 and beyond?
Hey thanks~
From what i got it seems that the overall grip of the tire compound affects the wear speed (it's the same byte of value that affects both) , kind of in an organic way, but the wear factor or calculation of whatever isn't drastoc enough that it makes a difference unlike in gt4.
The wear speed and percentage of grip loss actually is a global variable in each event. I've successfully added wear to a bunch of races, as well as altered the speed at which the wear occurs and the loss of grip that it results in.
GT2 (and later very likely, and i think gt1 as well) has a proper warmup section with less grip, optimum grip levels, and theloss of grip from wear only starts once you pass yellow and into orange. From green to yellow you have full grip.
So in short, the diffences in compound wear speeds is only able to be widened by also widening the grip levels of all compounds if that makes sense.
It sadly is all done by editing files, though i think one could enable tire wear via codes jt they'd have to be disabled when the event loads.
However the main issue with tire wear... Are the tracks themselves. There's about 50% of the tracks (in all layouts) that have broken pathing for the pits, preventing AI's from pitting correctly.
@@submaniac93 Thanks for the answer. So, in theory at least, Sim, Normal and Sports Tires would last longer than Super Soft Slicks ... if the tire wear factor or sensitivity was higher. I guess it is similar to what you discovered with TCS, it works but isn't sensitive enough to be noticeable. Normal, Hard and Super Softs feel quite similar in duration.
Huh. You'd believe that wear speed/grip loss would be a function of the tire, not the event. Well, I guess it makes sense somewhat, considering that Arcade allows you to add tire wear to 2P races and alter wear rate. The pitting issue ... well, there's no real way to solve it other than make them not pit, which means ... either no tire wear OR short enough sprints where there's no need to.
As an aside, Arcade mode has an option that allows car damage, which seriously screws handling the more you bang up your car against walls and other cars. It would be interesting to see how would the Sim mode work with car damage, although driving a ... say, Viper GTS-R with worn tires through the corkscrew is difficult enough without the handling being damaged.
@@Jose21Crisis yeah the tires do last all a different amount of time, proportional to thzir grip levels, but it's barely noticable. There's like a lap or 2 of difference between sports and super softs. Weirly enough, normal tires (the real ones, not race car's normals which are mediums) last the shortest amount. Which in itself doesn't really makes sense since road tires are meant to last thousands of km/miles.
About thz 'damage' i haven't found a way to force it in sim. Nor if it even is possible to force either.
@@submaniac93 Actually it does make a little bit of sense. While road tires are made to last so many miles, they can't really endure it at the speeds involved in racing. At least, that's what I've read in relation to tires.
Anyway, if Normals last the least amount of time, then that would mean that there is another variable somewhere that affects wear, not just tire grip itself.
I wonder, is there anyway I can try to look at the files? Any tool or utility I'd need?
@@Jose21Crisis the tool needed is a work in progress by the author of the GT2plus mod and he hasn't released it publicly yet sorry.
The data for the tire compounds is all in hexadecimal as well. Sucks to be reverse engineering sometimes lol.
Each compound has data for the front and rear set of tires tires separately and there's a bunch of settings including the behavior to have on the various surfaces but i didn't find anything that affected the wear.
I'll have an other look one day though, 'cause i was limkted on time due to preparing a move and my pc is still somewhere between the previous country i was in and where i am now...
Is possible to make a 1st-gen Chevette Hatch (Brazilian model) based on the '82 Starlet Turbo S or any other similar car?
Front: quatrorodas.abril.com.br/wp-content/uploads/2016/11/581107300e216302700a63c4qr-648-gb-01-tif.jpeg?quality=70&strip=info&w=1024
Rear: cdn.awsli.com.br/1000x1000/1112/1112874/produto/54536404/2db9fa3692.jpg
Another mod ideas: Chevrolet Celta (1st generation) based on the Opel Corsa (in real life):
images.noticiasautomotivas.com.br/img/f/gm-comemora-2-milhoes-de-unidades-produzidas-em-gravatai-rs-unidade-produz-o-compacto-onix--1024x625.jpg
images.noticiasautomotivas.com.br/img/f/2002-1024x768.jpeg
Mazda MX-5 Miata Touring Car (from GT Sport), based on the Mazda MX-5 Miata '89 racing mod, but with GT Sport specs (at least the engine)
VW Polo Classic Sedan or VW Golf Mk3 (both based on the hidden Polo), and any of the VW Gol models possible (generation 2?)
Wait rally on tarmac track?
Yup. The road surface doesn't determine the physics, the tire compound does :p
@@submaniac93 I think this is the best way to yeet skid around the track than searching out proper drift setup on Internet XD
@@zeeks4338 very much so lol