[osg-users] blend vpb & osgGIS models

[Robert Osfield]

On Jan 7, 2008 4:12 AM, Glenn Waldron <gwaldron at gmail.com> wrote:
> However, it only works for areas of limited geographic size. Overlaying a
> geocentric model onto a geocentric globe using osgSim::OverlayNode doesn't
> work for projecting models that cover larger areas or the entire earth.
> Robert may be able to shed some light on why this is the case.

The limitation comes down to use of projective texturing - it can't
wrap around the globe.  The view dependent OverlayNode modes can cope
better as they clamp the projected region to what is visible on
screen.

Robert,