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Mid air collisions (Read 405 times)
Aug 28th, 2005 at 12:23pm

Sytse   Offline
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Virtual Red Arrows
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???
...

It's clear I didn't hit him. Just look at the gap between the planes...
I even had settings on ignore traffic crashes, but somehow the damage profile recognized the other aircraft and my wing fell off.  Sad
Does anyone know what causes this problem and more important: how to fix it?
Thanks.
 
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Reply #1 - Aug 28th, 2005 at 12:54pm

CAFedm   Offline
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Don't get mad - get even Grin

Um, it wouldn't be accurate, but maybe you could add Eric Marciano's radar gauge to your Spitfire to keep an eye on nearby traffic - or start using the rearview mirror.  Great pic BTW!
 

Brian
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Reply #2 - Aug 28th, 2005 at 1:57pm

Sytse   Offline
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Thanks! But he didn't fly into me, I flew into him, well... at least that's what the plane "thought". I'm sure I didn't hit him. (Pic's taken at the moment of collision  Grin)
 
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Reply #3 - Aug 28th, 2005 at 3:17pm

Woozy King   Ex Member
Forza Lazio!!

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Nice pic is all I can say Wink Wink Grin
 
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Reply #4 - Aug 29th, 2005 at 8:22pm

Sytse   Offline
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No help on this one then?
Oh and thank Ashar, but I like flying better than taking screenies  Wink
 
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Reply #5 - Sep 5th, 2005 at 8:48pm
Nick N   Ex Member

 
Quote:
???
[img]

It's clear I didn't hit him. Just look at the gap between the planes...
I even had settings on ignore traffic crashes, but somehow the damage profile recognized the other aircraft and my wing fell off.  Sad
Does anyone know what causes this problem and more important: how to fix it?
Thanks.


It is because of the contact points in the aircraft.cfg file for the aircraft you are flying or the AI plane (or a combination of both). Most aircraft builders really skip that area and rely on the model file measurements to provide the correct numbers when the .air file writes the aircraft.cfg file the first time the plane is test flown by the builder. Model builders will usually concentrate on the landing gear contact points and really shrug off the rest.

Another problem is FS uses metrics for some measurements and (U.S.) feet for others. Some model builders use metrics to design their aircraft and some use feet and they forget to convert the measurements before exporting the model out of GMAX or other programs. If the aircraft manufacturer does not translate the changes correctly you end up with a set of contact points that can be ridiculously offset.

Not uncommon.
« Last Edit: Sep 6th, 2005 at 2:21am by N/A »  
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Reply #6 - Sep 6th, 2005 at 3:59pm

Saitek   Offline
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Yes, it is the same with buldings too. To do stunts (flying through narrow gaps for example)  it can mean you have to have crash detection off.  Roll Eyes
 

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Reply #7 - Sep 6th, 2005 at 5:51pm
Nick N   Ex Member

 
Quote:
Yes, it is the same with buldings too. To do stunts (flying through narrow gaps for example)  it can mean you have to have crash detection off.  Roll Eyes


Either that or edit in the correct contact points for the aircraft yourself.

I have a method of doing that by using the [LIGHTS] system and a a single nav-red light. I make a backup copy of the aircraft.cfg file, then remove all the lines under the [LIGHTS] section and copy all the X-Y-Z locations from every line after point.XX=2 from the [CONTACT_POINTS] section. =2 are all the contact crash/scrape point lines.

The [LIGHTS] section allows for up to 18 lines so I copy all the x-y-z locations from [CONTACT_POINTS] =2 lines and make up a set of light lines with all the contact locations in them, and give them an FX call to: fx_navred which means when I boot the sim and the aircraft, I turn on the lights (keyboard L) and all the contact points appear on the screen as a glowing red light. I can then edit the aircraft.cfg [LIGHTS] lines to get the contact points EXACTLY where they belong and even add more if I wish.

In example, if the contact lines reads:

point.3=2, -14.17, -47.33,  4.10,  787.4, 0, 0.000,  0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 5, 0.0, 0.0
point.4=2, -54.00,   0.00,  2.83, 787.4, 0, 0.000,  0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 9, 0.0, 0.0

I would make a light lines that reads:

light.0 = 3, -14.17, -47.33,  4.10, , fx_navred//contact point.3
light.1 = 3, -54.00,   0.00,  2.83, , fx_navred//contact point.4
ets...

The bold numbers are the ones to transfer and I note what light line matches the contact point line at the end after the // entry


You must save the aircraft.cfg file for each edit and in the sim you must reload the aircraft (ALT key, Menu, select aircraft) in order to see the changes made each time the light lines are edited. Each contact location number is in feet, not meters.

Once I locate all my points using the light lines, I then transfer the numbers from the light lines back to the contact point line it belongs to...  Then using the backup of the aircraft.cfg file I made in the beginning, copy/paste the original [LIGHTS] section lines back in, save it

and WAAAALaAA!

a perfect contact point setup for my aircraft


can take a while until you get the hang of it, but well worth it for good planes.
 
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Reply #8 - Sep 6th, 2005 at 7:23pm

Sytse   Offline
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It's not that the contact points are rediculously offset... The spit can fly through pretty narrow things..  Grin
It's just that I was surpirsed to crash into another plane while I had crashes disabled.  Shocked
 
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Reply #9 - Sep 6th, 2005 at 7:24pm

Sytse   Offline
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Oh and thank you for the technical help... I'll try that some day.  Wink
 
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Reply #10 - Sep 6th, 2005 at 11:25pm
Nick N   Ex Member

 
Quote:
It's not that the contact points are rediculously offset... The spit can fly through pretty narrow things..  Grin
It's just that I was surpirsed to crash into another plane while I had crashes disabled.  Shocked



Check the FS9.cfg file for:

[REALISM]
CrashWithDyn=True
CrashDetection=1

sometimes the sim does not write the value to the FS9.cfg file and it remains enabled until you make another change. This happens when you make a change, fly a plane and for some reason the sim crashes to desktop or the computer reboots during the middle of a filght. The file usually gets written when you close the sim saving the changes you made during that session.

 
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