Hi Robert,
 
That's pretty much where I was heading.  Thanks for the confirmation.
 
-- Dan

________________________________

From: [EMAIL PROTECTED] on behalf of Robert Osfield
Sent: Thu 1/11/2007 1:12 AM
To: osg users
Subject: Re: [osg-users] Highlighting picked triangles



Hi Dan,

There isn't any built in mechanism for highlight specific triangles,
being a general purpose library the OSG doesn't try to implement all
the various ways that users might wish to use it.

The best I can recommend is to create a second osg::Geometry which
just contains the triangles of interest, you could share the vertex
arrays of the original osg::Geometry though.

Robert.

On 1/11/07, Gilbert, Daniel R. <[EMAIL PROTECTED]> wrote:
>
>
>
> Hello All,
>
> I need to come up with a mechanism for highlighting triangles which have
> been selected via a mouse pick or polytope intersection.  The osgFX::Scribe
> effect demonstrated in various examples work well for the entire node, but I
> don't think this will work for my purposes.
>
> Has anyone attempted to highlight triangles dynamically as the mouse moves
> across the model?   Would this involve copying the selected triangles into a
> separate geode and rendering with PolygonOffset similar to osgFX::Scribe?
>
> Any suggestions will be greatly appreciated, as I'm sure someone has a more
> straight-forward/elegant solution.
>
> Thanks,
>
> -- Dan
> _______________________________________________
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> http://www.openscenegraph.org/
>
>
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