[osg-users] how to use OpenGL code in osg

[su hu]

Hi, bob

Thanks a lot.

Kind Regards,

Tiger Su


2008/5/2, Bob Kuehne <rpk at blue-newt.com>:
>
> hi su - we cover this (and more!) in the intermediate training course
> we teach. however, it's a pretty simple answer - the
> drawImplementation is only executed once, because it's converted to a
> display list the first time drawn. so, disable display lists on that
> drawable, and you'll be set!
>
> bob
>
> On May 2, 2008, at 5:13 AM, su hu wrote:
>
> > Hi all,
> >
> > I have some opengl codes and want to use these codes in osg program.
> >
> > I do it as follow:
> >
> > 1. Add a geode to root scene and define a drawable (derived from
> > osg::Drawable).
> > 2. The drawable is added as child of the geode. OpenGL code is added
> > in DrawCallback of the drawable(in drawImplementation).
> >
> > But it seems that the DrawCallback function is called by osg only
> > once. When I add other node to root scene, the drawable will
> > disappear.
> >
> > Could you please tell me how to add opengl code to osg program?A
> > simple sample will be appreciated. Thanks a lot.
> >
> > Regards,
> >
> > t s
> > _______________________________________________
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> > osg-users at lists.openscenegraph.org
> >
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>
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