Paul Melis wrote:
> Martin Spott wrote:
> > FlightGear typically uses the AC3D format for drawing aircraft models
> > and scenery buildings. This works quite nicely - this is one of our
> > usual eye-catchers:
> >
> > http://foxtrot.mgras.net/bitmap/FGFS/ggb-ac.png
[...]
> > http://foxtrot.mgras.net/bitmap/FGFS/ggb-ive.png
> Oops :)
>
> When I load your model in .ac format together with axes.osg the Golden
> Gate's road is along the Z axis, with the Y axis pointing up.
> Is that what you expect?
Now, finally the secret behind the funny behaviour was disclosed to me
- and it's so bizarre that I'd like to share it with you:
The AC3D loader in OSG works properly - obviously. But FlightGear has
to switch the orientation when loading AC3D models in order to comply
with the mis-behaviour of the formerly used AC3D loader in PLIB.
Instead, for all the other file formats, FlightGear relies on proper
orientation - which is why the Golden Gate bridge looks so strange when
converted into .ive
Oh man .... ;-)
Martin.
--
Unix _IS_ user friendly - it's just selective about who its friends are !
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