Hi Michael

Thanks for you reply. Yes, the wireframe view shows triangle instead 4gons. 
This isn't a real problem for me when you say:


>  (b) because triangle lists are faster to render than separate polygons.


I'm not very familiar with 3D "inside" concepts, but I thought that having 
fewer polygons (though with 4 vertices) could be better, in terms of render 
time and memory, which have fully triangulated model. So, I'm in wrong? :D

Many thanks

Bye


Michael Platings wrote:
> Hi Dario,
> no the FBX reader doesn't necessarily have to triangulate the mesh, I just 
> wrote it that way (a) for simplicity and (b) because triangle lists are 
> faster to render than separate polygons.
> Presumably you're viewing the model in wireframe - are the extra lines a 
> major issue for your application?
> 
> On 19 April 2010 19:59, Dario Minieri < ()> wrote:
> 
> >  Hi Gordon
> > 
> > Simply, if I have a model with mesh consisting of polygons with 4 vertices 
> > (no others n-gons), it must necessarily be triangulated? The osgViewer 
> > always shows the triangulated models even though they are not originally.
> > 
> > Many thanks
> > 
> > Best Regards
> > 
> > 
> > Tomlinson, Gordon wrote:
> > 
> > > What do you define a 'untriangolate mesh' to be ?
> > > 
> > > 
> > > 
> > > Gordon Tomlinson
> > > Product Manager 3d Technology & Project Wyvern
> > > Overwatch(r)
> > > An Operating Unit of Textron Systems
> > > 
> > > -----Original Message-----
> > > From:
> > > 
> > 
> > 
> > > [mailto:] On Behalf Of Dario
> > > Minieri
> > > Sent: Monday, April 19, 2010 10:11 AM
> > > To:
> > > 
> > 
> > 
> > > Subject:  Untriangulate Meshes...
> > > 
> > > Hi,
> > > 
> > > Sorry for my noob question: OSG is unable to handle untriangolate
> > > meshes?
> > > 
> > > Thank you!
> > > 
> > > Cheers,
> > > Dario
> > > 
> > > ------------------
> > > Read this topic online here:
> > > http://forum.openscenegraph.org/viewtopic.php?p=26947#26947 
> > > (http://forum.openscenegraph.org/viewtopic.php?p=26947#26947)
> > > 
> > > 
> > > 
> > > 
> > > 
> > > _______________________________________________
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> > 
> > 
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> > > g
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