Assetto Corsa PC Mods General DiscussionPC 

  • Thread starter Thom Lee
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78
Finland
Finland
You know, the nice thing about making roadcar physics is if that some people say they feel or think your physics are worse or better than someone's, they can always go and verify it themselves. It's not like flightsim physics where you can't just go and find almost any of the data.

I don't need to "prove" that my data replacements are objectively closer to the real-world equivalent than alternatives you there, if you do an hour of searching you'll figure it out yourself by noticing that almost nothing matches up on most alternatives.

To now the only argument I've seen from people who've never devved anything, like @safi hellie, is something akin to "He is not a pro, so how can he make as good work as pros" or "I don't think it's realistic, so it isn't".

The more nuanced argument I've received from actual developers is that I'm working on limited, not fully reliable data, and thus my cars change somewhat from version to version and thus are difficult to consider as being "study sim" level products, like something akin to aphidgod's WRX or iER's P13C which has a more reliable data set used initially, from a more unified source. I agree with that, it's true.

Some cars like the (not yet updated) NSX have a large amount of manufacturer data now and are better for it, some like the E30 also have a similar amount of manufacturer data, but have other challenges like unsupported suspension types, or stupidly complex AWD systems, so your experience may vary. Either way there's no better *alternative* out there.

While I don't hold terribly large importance to it and prefer to stick to actual data and correct inputs, after all simulators are just tire force generators and there is nothing magical about it at all, most drivers of the real cars enjoy the ones I make. I really don't believe you have to drive a specific car to derive information about it, at most you can make extremely vague conclusions which can be a result of several factors interacting, but if you believe so, then at least this is something for you to think about.

More importantly, they all correlate very well to all of the good data which I do have, either be it because I got it from a good source or I calculated it myself with other good data.

Now I know someone will ask to post the data. My data folder is over 10gb so I don't think you want the whole thing but I'm happy to talk about physics and share data and the sources if you really want to (Arch#0819) but just to compare to some KS cars if you're truly curious, here are some easy to measure camber curves! The EX=0 versions of the geos diverge a tiny bit, but there *are* EX=2 versions at least of the FD3S. I don't think I ever built EX=2 E30.

Be sure to first align the car to the static values, and align it to the static height and do the measurement on a level surface, or in a geometry simulator. If you don't know how to do those, perhaps reconsider criticisms to begin with, and learn a bit more. :boggled:

E30 rear, standard assembly, standard height, no driver no fuel
M3 rides 15mm lower, Sport Evo additional 10mm lower in the front, unsure if KS is accurate to that, doubt it.
Wheel travel vs deflection single wheel, degrees

Camber

+50.0mm = -0.275
+25.0mm = -1.15
+0.0mm = -2.0
-25.0mm = -2.875
-50.0mm = -3.725

Toe

+50.0mm = 0.31
+25.0mm = 0.24
+0.0mm = 0.23
-25.0mm = 0.26
-50.0mm = 0.36

FD3S rear, standard assembly, standard height, no driver no fuel
Wheel travel vs deflection single wheel, degrees

Camber, I think I derived droop side from simulation, not from the manuf. data as it didn't include droop, so you don't have to trust the droop side.

+40.0mm = -1.26
+0.0mm = -1.25
-40.0mm = -1.88


Toe, derived from simulation so you don't need to trust it, but it's what I built it on because it's sensible.

+40.0mm = -0.12
+0.0mm = -0.0
-40.0mm = 0.08

I know alignment curves isn't the only thing which matters and sometimes need to be sacrificed in some weirder geos for other aspects (Hell, the alignment changes mid-corner from suspension component deflection under G) but if you want to get an idea just what kind of inaccuracy we're talking about, do indulge yourself.
 
518
Argentina
Argentina
@Blackcelica , I want you to know that I'm following your steps!

upload_2020-11-25_0-11-50.png
 
518
Argentina
Argentina
Without meaning to ruin the party, if anyone wants to try their hand at the Mercedes, it can be found on the comments of this YT video (stock version + drift + F1 tuned):

 
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1,205
Finland
Helsinki
new *Simraceway WiP's
- Madeena Al Bahar - conversion complete, shadows complete, basic building reflections complete
- Cumbria / Longstone - needs trees and smoother road mesh
- Troyton Raceway - needs smoother road mesh

*Madeena will get some night lights and needs AI + pit/starts. I started with the Simraceway version and it got corrupted by ksEditor. I found the GTR2 version (which is actually newer) and did another fresh conversion from that source. This will also avoid any issue for a public release as the GTR2 version is 1. better 2. not bound to SR. Will try to get permission from S. Cowie (MadCowie) for proper permissions.

*Cumbria / Longstone may not get released as there is a version available already. This track needs real trees, smoother road mesh and a complete tonal adjustment.

*Troyton has a very rough road mesh, unless someone wants to smooth it, it likely wont be released.

This completes my Simraceway track conversion list. (Giza and Tropical Island were the other 2 and have been released in beta form)
 
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268
United Kingdom
United Kingdom
Ok, I want to get some stuff uploaded later on but first can someone just clarify what I can and can't do regarding converted tracks please.
1. Can I post F1 track skins for converted tracks? Acu, reboot etc for example.
2. Can I post links to the actual tracks themselves should anybody be struggling to find them? Mediafire links for example?
 
1,205
Finland
Helsinki
Ok, I want to get some stuff uploaded later on but first can someone just clarify what I can and can't do regarding converted tracks please.
1. Can I post F1 track skins for converted tracks? Acu, reboot etc for example.
2. Can I post links to the actual tracks themselves should anybody be struggling to find them? Mediafire links for example?
1+2. yes and yes

3. paid mods
no (you can post updates for paid cars/tracks mods)
 
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50
Australia
Australia
Thanks a lot.
Somehow I get continuous engine damage long before reaching rev limit.
With the 908 and with the R10

As I suspected I overlooked the twin turbo issue. So when you setup the engine with 2 turbos, say at 1bar boost each, then AC calculates the boost pressure a 1.0 bar x 2 = 2.0 bar total boost. You have to allow for this when setting the torque curve which with a turbocharged engine, is torque at the wheels with no boost. What I didn't allow for is you need to allow for this total boost in the engine damage parameter.

Please re download both the Peugeot 908 and Audi R10 here. Now complete with working windscreen wipers thanks to Flyingsaucer (credits updated)

https://mega.nz/file/raxGgLhR#b1uPrTDK6P3scXJZeZ_zABiWSJ78NPdcWAY5cPnvnoc

and the Audi:

https://mega.nz/file/6fowTBgK#eP17gHbCUvllk2JknwfHIk8aP1h3EgNJWG0XG2-A3Ho
 

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1,205
Finland
Helsinki
upload_2020-11-25_10-20-37.png


super rough model from Fortnite, someone might be able to put it in game (i dont want it really, its for others)
- :: link ::

todays extra bonus link:
Turismo Carretera Simulator (free download)
ACTC 2014, 2016 - 2020
(tracks and cars are extractable)

Other news:
Put everything in a game...
"The latest generation of iPhones has a built-in front-facing LiDAR sensor. LiDAR allows point-and-shoot 3D capture, and bringing it to the iPhone means that literally anyone can have a 3D scanner in their pocket."

https://sketchfab.com/blogs/community/3d-scanning-with-the-iphone-12-pro-lidar
 
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368
Italy
Italy
Woaw. Thank you CrisT86.

But I believe I will not modify anything. It is clearly easier read a law book. :lol:

I added this option because it's fair towards the modder, I removed for my use because I don't like fake stuff on circuits, but is fair to leave them available for who wants them (overall because they are a watermark of the author itself) :)

Hope you like it :)
 

safi hellie

(Banned)
1,366
Australia
Australia
Really annoyed that Jakub has left if true.
Really liked his physics and re works. Such a shame.
I'll say it again, some people seem to have started to forget they don't own Assetto Corsa, it's not their sim, yes a lot hs been added, but at it's core is kunos's baby that i would still play even without the extras...honestly.

Telling people what they can and can't do with their own copy of a game is one of the most disturbing things about the sim community for the time i have been in it.