Hi Joakim, There is support in the OSG for handling geocentric databases, and this is what osg::CoordinateSystemNode is about - you decorate the geocentric database with it and then you can use it to compute lat/longs as well as work out which way is up.
However, there isn't any code that takes a flat database and curvers into into geocentric. You could convert your models across yourself, or perhaps us a vertex shader to warp the database on the fly. Personally I'd just process the database so its in geocentric coords to begin with. FYI, osgdem/VirtualPlanetBuilder creates geocentric databases. Robert. On 6/26/07, Joakim Simonsson <[EMAIL PROTECTED]> wrote:
Hi, I have a pretty large terrain model (250000x250000 meters). The terrain is used for marine simulation. What I am looking for is the effect that makes objects desapering "bellow" the horizon. Does osg povide functionality to project my flat terrain model onto an elepsoid? I have glanced quickly through the CoordinateSystemNode code. But it seems that it is just used for making it possible to provide osg with lat/lon and get the result in xyz. Or has it other purposes aswell? -- Joakim Simonsson _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
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