Assetto Corsa PC Mods General DiscussionPC 

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When was the last time you tested a vanilla AC? My brother's 16-year old son got a PS5 and I recommended AC to him. They bought the disc on Ebay and I visited their house He is absolutely hooked.

As a veteran sim racer I had to show him how to drive it. :D

And man, Kunos Nissan GTR and Mercedes 190 EVO at Kunos Nordschleife are just utterly amazing.

I've been playing a lot of LMU and been testing EVO lately... but when you actually DRIVE just plain vanilla AC, it just blows away everything with a huge margin. It's simply the FFB and how the car feels on the limit. The catapult kerbs are garbage though.

People who say that "AC is only good with mods" are absolutely braindead. Even in its vanilla form it's still easily the best sim out there.
 
Apocalypse211
When was the last time you tested a vanilla AC? My brother's 16-year old son got a PS5 and I recommended AC to him. They bought the disc on Ebay and I visited their house He is absolutely hooked.

As a veteran sim racer I had to show him how to drive it. :D

And man, Kunos Nissan GTR and Mercedes 190 EVO at Kunos Nordschleife are just utterly amazing.

I've been playing a lot of LMU and been testing EVO lately... but when you actually DRIVE just plain vanilla AC, it just blows away everything with a huge margin. It's simply the FFB and how the car feels on the limit. The catapult kerbs are garbage though.

People who say that "AC is only good with mods" are absolutely braindead. Even in its vanilla form it's still easily the best sim out there.
Click to expand...
i actually play for maybe 15hours the redline carreer mode that only use vanilla content https://www.overtake.gg/downloads/redline-stars-careers.51937/

of course it's with my CSP config (thanks ai whisperer, stretched grid, new ai lines) etc but it's amazing

there are some cars i didn't really enoyed (cayman gt4, 488 gt3) but most of the cars are amazing, it's only fun. the base setup are a bit too safe on many cars.

the biggest con is the lack of real racing track
 
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Super random but, has anyone aside from RMi_wood made anymore objects for track decorator? Has he made anymore after those first 2 packs? They're great btw just want more lol
 
Hi friends,

DumbAI has been updated to 1.3 with a new Blue Flag behavior proposal here : https://www.gtplanet.net/forum/downloads/dumbai.7322/

change log: New Blue Flag Behavior

- Added TrackContext module : pre-computes a lookup table of radius, direction and track width at session start, sampled every 10m along the full circuit

- Blue flag offset side is now determined by the geometry of the upcoming turn (inside of the corner) instead of a raw getTrackUpcomingTurn sign check

- Offset amplitude is modulated by distance to the next turn : full amplitude beyond 300m, linear ramp-down between 300m and 150m, zero inside 150m

- Overtake safety check : offset is suppressed if the apex margin is below 2.5m, or if a chicane (two consecutive turns in opposite directions less than 100m apart) is detected ahead

- Lateral move is now progressive (ramp at 1.0 unit/s) instead of instantaneous, smoothing the trajectory change for both the outlapped car and the leader

- Ramp start is inhibited when a turn is closer than 150m, preventing abrupt moves at corner entry

- Ramp-down on reset follows the same smooth ramp, with an additional speed reduction if the return move is blocked by a nearby car (TTC-based collision filter)

- Multiple outlapped cars in the same group now share a common offset side, coordinated by the car closest to the leader

- Each car in the train receives a speed allowance incremented by 10 km/h per rank, stretching the train and giving each car room to offset without collision

- Continuous upward re-evaluation : if the track opens up after a chicane, the effective amplitude increases on the same side without recomputing the side

- Leader's setAICaution is now reset cleanly via should_reset_outlap_caution, preventing interference with other apps after the overtake is complete

- Stale victims (retired, in pitlane, yellow flag incident, or reset complete) are pruned from the leader's is_outlapping array each tick

- If TrackContext is not yet ready at session start, behavior falls back gracefully to a lateral position comparison (identical to v1 logic), with a log warning

Basically, I tried to give a race context to the outlapped bot. So now it tries to understand if it is alone or in a train of late runners and then should stop fighting with others while Leader has outlapped. If there is a train, there is a small trick that makes bots organize themselves to go on the same lateral side while have slight different speeds so that the train is stretched a little bit.

This seems to help a lot to suppress the late runners trains spreaded all over the AI spline when they had been caught in Blue Flag behavior during a fight, a situation that created complete freeze for the leader just behind.

I tried to code an offensive behavior with mirroring offset etc... for the leader that is outlapping, so that it would be easier for them to overtake the slow bots. It worked in some way but unfortunately, it produces also strange incidents, the native AC colliders system seems to not like when you are putting offset to the bots .... So I had to move back and let AC native overtake behavior make its way and here is a consolidated version, with a (I hope) nice equilibrium based on late runners behavior only, a mix between prudence and enhancement for leaders.

I tested it on 4 configurations; with dozen of simulations 10 laps at AI 100% / 0% aggressivity on :
2 Tracks : Monza & Imola

with 2 grids: one F1 frid with F2004, Lotus Exos and F1 1988 (19 bots) and one LMP1 / GT grids with LMP1/LMdh (both Kunos and mods), URD GTE 2013 and GT3 Kunos (26 bots)

There are still some incidents from time to time (once per race) between the GT when they have just been outlapped and they are back to fighting , especially in dangerous area such as Rettifilo or first turn of Acque Minerali and Variante alta but I found it OK as I saw native AI was also sometimes going out of tracjs here, so I hope you'll find the same results than me and find this new behavior useful in your configurations.
 
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Random question, I know that we have the post-war Vedano circuit (Monza) but the quality is meh... Does anyone out there has ever reworked it or considered something like this?

Edit: Same goes for Pedralbes
 
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What parameters in a car mod can make FPS tank?
It would be interesting to know what else besides high triangle count and missing LODs can cause a mod to tax the GPU much more...
Also would be great for people making mods to know what to look out for to have their mods run smoothly.

Case in point : the Chevrolet Camaro Z/28 mod by OnVisu! Society v1.0.1 (found in the garage)

CM Analyze shows it has 4 LODs and only 330K triangles , but cannot keep steady 72 FPS on this one and my GPU usage is about twice as much with this mod (with all same settings , compared to other mods with similar triangle count)...
Anyone?
 
jac0
What parameters in a car mod can make FPS tank?
It would be interesting to know what else besides high triangle count and missing LODs can cause a mod to tax the GPU much more...
Also would be great for people making mods to know what to look out for to have their mods run smoothly.

Case in point : the Chevrolet Camaro Z/28 mod by OnVisu! Society v1.0.1 (found in the garage)

CM Analyze shows it has 4 LODs and only 330K triangles , but cannot keep steady 72 FPS on this one and my GPU usage is about twice as much with this mod (with all same settings , compared to other mods with similar triangle count)...
Anyone?
Click to expand...
Is there some king of lua scripts coming with the car? Have a test without extended physics : if it runs smoothly, you have a lead.
I guess you already tried the Analyze tab in CM.

The lua debug can show you the data usage if there is one - i've seen very demanding stuffs on some mods, and they're not optimised at all.
 
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I have an issue with Spa 2022 by guigui0256 updated by @racinjoe013

Racinjoe013 used to put some config files inside the skin folder to be enable or disable some functions, but it doesn't work anymore. e.g.: seasonal_trees.ini.dds works only if I rename it to seasonal_trees.ini (the same happens with other configs)
 
jac0
What parameters in a car mod can make FPS tank?... Anyone?
Click to expand...
I'm sure this is a clear case of optimization using black magic and witchcraft.

It makes no sense that mods with a fistful of polygons and files look and run flawlessly (see Kunos's vanilla content, for example) while others with zillions of megabytes, which are supposed to be much more detailed, look (or/and drive) like Minecraft bricks. I can't get my head around it...
 
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phewww, i was very lucky today. i almost lost my entire ac collection cuz steam was missing and i tried reinstalling it with unistalling
first, but then files got deleted. so i shut down my pc real quick and now after a workaround via my laptop its all back there
 
jac0
What parameters in a car mod can make FPS tank?
It would be interesting to know what else besides high triangle count and missing LODs can cause a mod to tax the GPU much more...
Also would be great for people making mods to know what to look out for to have their mods run smoothly.

Case in point : the Chevrolet Camaro Z/28 mod by OnVisu! Society v1.0.1 (found in the garage)

CM Analyze shows it has 4 LODs and only 330K triangles , but cannot keep steady 72 FPS on this one and my GPU usage is about twice as much with this mod (with all same settings , compared to other mods with similar triangle count)...
Anyone?
Click to expand...
I would stay away from mods of that author. They are simply not good in my opinion, tested a few of them and every single one had some weird issues.
 
Tetri
Is there some king of lua scripts coming with the car? Have a test without extended physics : if it runs smoothly, you have a lead.
I guess you already tried the Analyze tab in CM.

The lua debug can show you the data usage if there is one - i've seen very demanding stuffs on some mods, and they're not optimised at all.
Click to expand...
no lua script but it has a huge ext_config.ini (35Kb !)... probably uses one or two obscure extension things which tanks the performance ...
 
Spent many days again playing all sims. I even dug up good old Live For Speed and man that was a good game in its time... great force feedback.

This is how to create perfect driving simulator

Assetto Corsa force feedback and car behaviour on the limit + its unlimited modding
LMU kerbs
iRacing online system and its oval AI and physics (it has great Indycar)
F1 25 all modern F1 features/rules and AI (you could take any ai from 2020-25, they are ridiculously superior to any "sim" out there, it's not even close)
AMS2 VR + flying start ability to create proper Indycar
Maybe ACC menu system? It's quite nice looking.
Maybe EVO graphics, it sure looks great but I don't really care about the graphics. They all look good enough. I can't even say which one looks best... graphics are like modern EV cars' acceleration numbers. They're all fast so who cares. :)

I wish we could "hack" a game like this.

Actually I wish they'd update the original AC instead of putting all resources to EVO. EVO just doesn't drive that well compared to the original and obviously they are not able to duplicate AC1's driving feel anymore (for whatever reason). Maybe the guy who did the FFB is dead? :D Yes they say it's still a WIP but the driving feels like ACC and obviously they're not going to change that. Yes I played it for 5 hours straight today and tested different cars. Some are better than others but when you go back to AC1 it's like a night and day. In EVO the car front ends feel weird and lifeless and I doubt we can ever mod it like we can AC1.

LMU is very impressive sim and many real drivers praise it. Sure it has good physics but I can't really connect to that FFB in similar way that I can do with AC1. AC1 to me still is the only sim where the driving feels absolutely natural. Many mods have eliminated the kerb problem too. Never thought RF2/LMU FFB was that good. Some people praise it but personally I don't really like it.

In short: All sims are more or less frustrating but in relative terms we have some insanely good sims... just compare the driving sim quality to games like FIFA and PES. Total arcade garbage which have very little to do with realistic football. I haven't played the latest ones but in FIFA 23 you could play two 15 min halfs and get ZERO fouls. Real football games have 15-40 fouls per game, you're lucky to get one in FIFA and there wasn't even a slider for that. Then they had a terrible AI comeback logic, etc. :D

I think AI's are bad in so many games today is because they prioritize the online gaming. Yet the F1 series have made almost flawless AI. I mean it can't get realistically better than that (2018 was still overly aggressive and 19 had some issues but after that it really clicked). It's extremely rare to get "abused" by the AI on the F1 series. Sure it happens but very, very seldomly. AI is super competitive and intelligent and actually the modern F1 games put any "real sims" to total shame in so many aspects, it's not even funny.

AI and season are very important to me because I love playing full seasons offline. That is my thing. Sure I love hotlapping the street cars too but F1 is my priority. I don't care about any career/Myteam fantasy crap at all. Just the plain good F1 seasons... never get tired of that. AC is absolutely SUPERIOR when it comes to hotlapping and classic seasons 1978-2009'ish... but you can't make a proper modern F1 seasons on AC because of its rule/hardcode limitations and not-so-good AI.

What is really frustrating is that AC's AI is not actually THAT bad, it just has some unforgivable things (like lack of blue flag/outlap ai). It's a real mystery why they left that kind of blatant issues there. All sims have more or less crap AI's. AMS2 AI is not great but it's probably the best of the bad bunch.

It's obvious by now that EVO will never dethrone AC1. Do you think it's unrealistic to except Kunos to ever update/fix AC1 because it's such an old title? AC1 is still the most popular driving sim... it easily tops the Steam sim racing ranking list every day in popularity... so why not? Or maybe they'd just ruin it by "updating all tyre models" and then it'd drive like ACC too. :D

Thoughts?
 
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