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AI path issues and how do I create an ai hints file ?

Discussion in 'Chit Chat Room' started by Orne, Nov 7, 2017.

  1. Orne

    Orne Alien

    Created an AI path for the Barber track that Rigel is working on. Drove several laps in the Audi S1, ran a practice race against other AI driving the same car, everything was fine.

    I then switched to the Carrera S, the AI as well and they make one lap with no problems,, next lap they over shoot T1 and pile up in the sand pit. Is this where an ai hints file is needed to make the faster cars brake earlier?
     
    Orne, Nov 7, 2017
    #1
    Rigel likes this.

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  2. Schnipp

    Schnipp Alien

    Schnipp, Nov 8, 2017
    #2
  3. mms

    mms Alien

    I don't think AI hint files could help you here, this could be similar to the issue on the Mt. Tremblant track.

    I could take a look, PM me with info where can I get the track from...
     
    mms, Nov 8, 2017
    #3
  4. Orne

    Orne Alien

    I think I sorted it out.. found this video. Have to find the PoT numbers to determine where the AI should slow down, input those into Hints file. Nope that didnt work.. Hmmm

     
    Last edited: Nov 8, 2017
    Orne, Nov 8, 2017
    #4
  5. mms

    mms Alien

    Good luck, but as I said, I don't think the hint file will help you...
     
    mms, Nov 8, 2017
    #5
  6. Orne

    Orne Alien

    Orne, Nov 8, 2017
    #6
  7. Orne

    Orne Alien

    You were right. The AI never lift when approaching T1, even after creating the Hints file.
     
    Orne, Nov 8, 2017
    #7
  8. mms

    mms Alien

    We'll try to sort this out by PM's, if it works you can share the solution here...
     
    mms, Nov 8, 2017
    #8
  9. TwoHardCore

    TwoHardCore Simracer

    Would like to know if there is a solution too, mms, as there are issues with several cars at Mont Tremblant again, though not the area you previously helped with. Lots of cars are not willing to turn at Namerow hairpin now.
     
    TwoHardCore, Nov 8, 2017
    #9
  10. mms

    mms Alien

    Let me know which cars and I'll take a look. But I think Orne has the same problem you initially had with T1.
     
    mms, Nov 8, 2017
    #10
  11. Orne

    Orne Alien

    Weeeeeeeeee


     
    Orne, Nov 8, 2017
    #11
  12. mms

    mms Alien

    LOL, that looks like the same thing. Did you get my PM?
     
    mms, Nov 8, 2017
    #12
  13. Orne

    Orne Alien

    Rigel repositioned the S/F line to where it is on the real track. AI now take T1 with no issues. I wish I had 3D modeling skills!
     
    Orne, Nov 8, 2017
    #13
    mms likes this.
  14. TwoHardCore

    TwoHardCore Simracer

    Just a few of the cars that don't make it around the Namerow corner, too many to test...

    @ full circuit
    - Alfa Romeo 4C
    - Audi TT Cup
    - Lamborghini Huracan GT3
    - Lotus Exige 240R

    and a couple cars that do make the corner:
    - BMW M3 E30
    - Ferrari 458 S3

    Glad to hear Orne's issue is solved, nice work ;)
     
    TwoHardCore, Nov 8, 2017
    #14
  15. mms

    mms Alien

    In your case the issue is how the track goes uphill then downhill just before the sharp turn. The AI does not realize that it will loose too much grip by the car getting light.

    In this case you have to use the ai_hints.ini file to let them know they cannot take the corner @100%. Another issue is that your line is turning in too late in that corner...

    Attached you find the file, I also included a slightly better AI line, but I'll have to do more tests to see it fits more cars.
     

    Attached Files:

    mms, Nov 9, 2017
    #15
    TwoHardCore likes this.
  16. mms

    mms Alien

    Ok, here's another try, I figured out that BRAKEHINT works better in this case. Here's a post from Stefano explaining these hints:

    There's also another one, but it might not be useful:
    MAXSPEED_x for limiting the maximum speed.

    Here's a an example with all these hints:
     

    Attached Files:

    mms, Nov 9, 2017
    #16
    TwoHardCore likes this.
  17. TwoHardCore

    TwoHardCore Simracer

    I just had a race using the Porsche 911 RSR and your fixes, it was AWESOME! Nice AI line and thanks for teaching me again ;) It's much more fun racing cars that will drive the entire lap instead of 99% of it :D. Now I'll do the same for the North track so I can race the AI there too. Thanks again mms!
     
    TwoHardCore, Nov 9, 2017
    #17
    mms likes this.

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