Re: Ground limit and 3D model

Frederic Bouvier <[email protected]> Sat, 21 May 2005 13:04:41 +0200
Newsgroups gmane.games.flightgear.flightmodel
Message-ID <[email protected]>
Jon Stockill wrote :

> Sam Heyman wrote:
>
>> Is there any way of telling whether the aircraft is correctly
>> positioned? My 3D model is centred in the middle of the screen and
>> when I zoom it remains in the centre.
>> However, it sometimes flips-over and lies on its back, underground...
>> which seems to hint something isn't quite right.
>
>
> That sounds like the only contact points you've defined are the gear - 
> so it's doing exactly what you told it - the gear remains at ground 
> level :-)
>
> Try adding extra contact points for things like wing tips, the top of 
> tha tail, the nose, canopy, etc - this will ensure that if it does hit 
> the ground you won't be able to drive parts of the aircraft *through* it.


Yes, ideally, every vertex of the convex hull should be a contact point. 
Gear down *and* gear up, because when the gear is up, it is no longer a 
contact point.

-Fred



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