[osg-users] Constructing normals for osg::DrawElements

John Donovan john.donovan at embryonicstudios.com
Tue Sep 18 02:55:42 PDT 2007

Alberto Luaces wrote:
> Hi,
> I think you can specify a normal per polygon using Geometry::setNormalBinding 
> and the parameter BIND_PER_PRIMITIVE.

This is true, but OSG will fall back to using glBegin()/glEnd() to render the
primitives, rather than using vertex arrays or display lists. Not a problem if
you've got a few objects like this, but isn't the most efficient path when the
scenegraph gets large.


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