Re: [Flightgear-devel] Bug in model collision detection?

[Vivian M. <viv...@li...>]

Jacob Burbach wrote:

> I'm having some trouble with collision detection not working properly
> on some models I'm working on. The models are made of a few different
> objects and while everything else works normally collision detection
> is not working on all the objects. I've attached a test model that
> illustrates the problem for me. Place the model somewhere (with ufo or
> whatever) and then try to fly aircraft through the different objects
> of the model. Here only the large box in the middle actually collides,
> and either of the smaller upper and lower objects I can simply pass
> through. Am I missing something obvious, is this a bug somewhere?
> 

Collision detection? Er - we don't really have that. There is Height Over
Terrain (HOT), which is on for scenery and AI objects by default, but not
for Aircraft models. This will enable you to land on a building, but usually
lets you fly through the walls, although you might also appear to collide
with it. 

In any case the ufo can fly through anything: land - sea - buildings ...

For objects placed one above the other as in your test case the results will
be very uncertain.

Hth

Vivian