CC Lines

Anyone else here into editing CC lines? I've always tried getting the CC lines spot on, just looking to share some tips and pointers.

I've been recently working on Monaco, to get a more realistic AI line whereby:
- they don't leave the door so WIDE open on corners such as Mirabeau
- they avoid the big bump down the hill from Casino
- etc

I have a really good CC Line now for Monaco, but it's really tricky getting it right particularly when they brake when they don't really need to - I guess it's all do with the radius of the line in that section (obviously) but sometimes they brake when you simply wouldn't brake yourself, and they don't need to. It's quite hard trying to get the line smooth and flowing, and fast!

Anyone else do CC Line editing?

Yes, editing cc-lines can be very tedious and time consuming at times - especially when you realise you need to change something early in the lap, and it changes everything else following it.

Feel free to share your Monaco cc-line, it would be nice to see your final result. Was it on the 2005 layout, or the 'original' 2001 layout?

---

X (@ed24f1)

I did it based on the 2001 layout, because I love the updated Monaco tracks, but the Pit Lane problem really bugs me - how you can't drive out of the pits without spinning it round, lol... unless I'm mistaken and there is a track with a working 2005 onwards Pit Lane??

Sure, I'll be happy to upload it, I just have to finalise it, it's 99% now, but like you say - you spot one thing at the start of the lap and you have to do the whole lot, haha boo hooo

One simple rule I always try to follow when making cc-lines is not to use more than one section in the same corner, and if a second section is needed, not make its radius lower than the first one.

I also like to use 2 radii in the same section every now and then, to make cars accelerate as they leave the apex.

Radius bigger than 40 000 are generally flat out, lower values can be flat out if cars are leaving a slow corner.


My unfinished tracks: [www.grandprixgames.org]
Send bug reports and track editing questions to f1virtualblog@gmail.com

That's a very good point Prblanco - I noticed recently that a few corners had a larger radius on entry then smaller halfway through the corner so cars would brake for a corner then slow down more and it was unnecessary and VERY annoying when you ran into the back of them, haha.. I agree too that one radius on a corner is what you want - any more and the corner just doesn't seem to flow?

Can you explain what you mean about this bit:

"I also like to use 2 radii in the same section every now and then, to make cars accelerate as they leave the apex"

This sounds like something that might be useful..!! What do you mean exactly?

EDIT: Do you mean that if you put Radius 1 at say 17000, and then put a Radius 2 at 25000, they are more likely to accelerate out of the corner than if it is a constant radius of 17000? It's quite hard to get the cars to follow the racing principle of: Slow in / Fast out

Cheers



Edited 1 time(s). Last edit at 06/14/2010 10:52PM by TeamBPR.

That's it, you understood correctly


My unfinished tracks: [www.grandprixgames.org]
Send bug reports and track editing questions to f1virtualblog@gmail.com

OOh interesting! I never thought of it - I'm going to go and try it! Haha

Thanks

@ TeamBPR:
Having made some cc-lines I have noticed that best way to treat difficult and close corners for faster and smoother driving,
is making 2 sectors, 1 entering corner and ending on the apex and one starting on the apex and exiting the corner.
Both sectors have 2 radius like this:
Entering sector starts with large radius1 and continues with smaller radius2. This choice makes AI cars brake and reduce speed while already entering the turn.
Exiting sector starts with radius1 being the SAME with radius2 of entering sector. Being the SAME, gives absolutely smooth transition and driving from the 1st sector to the 2nd.
Finally, radius2 of exiting sector is larger than sector1 to facilitate acceleration.
Example:
Entering sector: Radius1: 13600, Radius2: 9800
Exiting sector: Radius1: 9800, Radius2: 12400

_________________________
some of my GP4 works ...

That's great advice thanks... I tried Monaco again last night using Prblanco's tips and it is getting there, but what you say makes really good sense, I'll try it out again tonight, and let you know...

Thanks, sounds good!