Track layouts to receive AI line redos

I tested Hockenheim modern with F3 default AI @110. That was maybe a bit too quick for me, but still I found the following:

-AI don't make use of the possibility to extend T1 so they lose 2-3 tenths there
-they also brake significantly earlier than the player for T2 and the hairpin after the long straight, allowing divebombs (tested against 4-6th placed AI out of 20)
-they make up half a second on the player through the exit of the penultimate corner and the final corner.

I have to say that I didn't use default setup for this (Preload 210, and 0 toe angle on front in order to combat snap oversteer on acceleration through curved exits) however on default with F-Reiza the findings for T1 and the last two turns were the same while braking for the hairpin was less of an issue.

 

Nah, in this case divebombing meant "braking 25 metres later and easily getting past while hitting the apex perfectly"

The function to brake later when challenged is a bit of a double edged sword; it helps a few of the usual AI abuse tactics, but the taps you're talking about do happen. In Hockenheim, on "aggressive" setting (of course it's to be expected that they are a bit more ready to make rash moves there) they regularly poke a nose to the inside in the stadium section and the last two turns (especially the last corner). Maybe that last bit of behaviour can be adjusted with a slightly slower, different AI line.

Looking forward to see the F3 AI in the next beta, thanks a lot for the current push to make the AI shine - it's really starting to add up to a very consistent result.

 

I am on the same version. I attached my setting and the results of another qualy session, but even on your screenshot the fastest AI only does a 1:50 and as I have mentioned in my previous comment a 1:48 should be doable by the AI too if the player can do such time.

 

Brands Hatch GP: Even after the rework, AI are too slow out of Westfield, mainly because they use a weird line that doesn't hit the apex. They lose almost half a second in this corner and are very easy to overtake if you get the line right.

They're also too slow out of Stirling's Bend, allowing themselves to be overtaken into the final corner (around 2,5 tenths time loss here).

This leads to the AI being generally too slow on this track compared to my baseline pace (TM).

 

Spa Francorchamps 2022:
The new AI line is much better and much faster but there is still one corner where the AI loose time / slow down.

Going into turn 16 they loose time so coming out of 16 they are slow and then slower down the straight where you can make up time and pass them easy.

 

There seems to be something off with the Bathurst circuit AI, even if it's only slight. The AI on that track is consistently too quick compared to my baseline strength of 110 on all classes tested (F-ClassicG2M2, F-USAG2 Reynard, F-V10G2, with time loss varying between 1 and 1.5 seconds - 110 is usually too weak for me for F-USAG2).

Especially in the last sector they are consistently quicker than me. I think they are a bit quicker out of the hairpin leading on the long backstraight, and they also are quicker into the last corner, where they very often try divebombs on me that are almost impossible to defend.

Also, after a few laps, there's always huge amounts of dirt buildup in T2, which makes it almost impossible to be as quick as the AI through there, because they don't get affected by that.

 

Laguna Seca should be added to the list for one corner: At the long downhill left after the Corkscrew, the AI regularly gain around 7-8 tenths on me, being equally fast in every other section of the track. This maybe has to do with the player car on default setup almost always hitting the ground there, but even without I think the AI would be significantly quicker there.

 

On Interlagos I gain about 2.5 tenths up the hill through the flat out kinks on the AI. That doesn't sound like much but prevents them from ever attacking me into T1 and makes my overtakes a lot easier, therefore this deserves a look.

It happens both on the 1991 and the modern version.

In other news, the AI is too slow through the Barcelona 1991 S section.

 

At Velo Citta, the AI is too slow into the last corner in every class. The player can go towards the inside there and simply overtake; AI does not gain that time back.

EDIT:

My line vs AI line (I'm the red and yellow car ahead)

 

Imola 1988, the AI needs better lines on both Variante Alta and Variante Basa, they take too much curbs and it unsettles them a lot, not to mention it looks very awkward how they bounce as if they were made out of gelatin, tested with F-HitechG2.

 

Jacarepagua Historic - the AI goes into Girao way too hard and wide compromising their entry into Morette, where taking the correct line (narrow exit out of Girao) the player can gain significant time compared to the AI. Otherwise the AI is great around the track!

 

Also on Jacarepagua Historic, the AI is spinning constantly entering the fast left hander after the long straight on a wet track, tested on the F-RetroG2.

 

The AI needs some divine intervention in Hockenheim 88 with the F-Classic G4 (and probably every fast formula class). Felt like I was racing with vanilla AC AI, they cant handle Bremskurve 2 and often crash with each other at Bremskurve 3. I think I already reported this issue, but just a refresher as it seems to be a though nut to crack that second chicane, it turns into a scrapyard after some laps.

 

Fontana Oval

On turn 1, the AI is too slow, as if it is braking when it is not necessary.

On turn 3, it's the opposite, the AI is too fast.

Test carried out with F-USA gen3, F-USA gen4 and Brasilian Stockcars.

 

Yeah this problem also exists in Asseto Corsa versions of the track, where ai line makers get confused with the correct line there and through Suspiro, taking the line the other corner needs - full exit line through Suspiro and stay on the inside through the exit of Sul.

 

I reported something like this a while ago in this thread, even before the redo. Have not tried the combination in a while. I can give a try in a couple of days but if you have the time to test further, I suggest you to play with the setup. When I tested this I realized with a lower downforce car humans behave much more like the AI. You keep up in the fast zone and you must lift where they are slow.

 

At Watkins Glen GP, the AI are universally around 3-5 tenths quicker than the player through the off-camber third to last corner. You could also argue they should be extending T1 because the player definitely can because of the lax track limits there. They also have a lot of trouble navigating T1 in packs; this could help twofold.

Also, they enter the optional chicane excessively quickly and crash frequently with formula classes.