On Wed, Oct 8, 2008 at 3:44 AM, Robert Osfield <[EMAIL PROTECTED]> wrote:
>> I think vpb should have a set of well documented and flexible
>> parameters that allow to use it for any planetary terrain, otherwise
>> we will need --geoecentric-mars, --geoecentric-mercury, etc.
>
> I don't think anyone of us would disagree with this sentiment.
> Especially if you are willing to help with this effort :-)

Sure. Where should I start?

> Poles are little bit awkward to fix with the simple quad tree approach
> used by the OSG (and many other whole whole techniques.)  We could
> certainly do more to try and alleviate this problem by better sampling
> around the poles when building the terrain.  Anisotropic filtering can
> help at runtime.

As Colin Middleton points out, that filtering will not be enough. I am
willing to help on implementing the polyhedron based projection. I
know of a few papers and references, including and adaptation of the
ROAM algorithm to the cube projection. But  since I am a newbie as osg
(and vpb) developer I just need some directions and links.

Regards,

-- A.
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