Hi Craig, The normals at task boundaries aren't presently equalised, nor are boundaries between different levels of detail. With textured models the artefact isn't too noticeable, but with straight geometry it's more pronounced as you have found.
My plan to address this artifact has been to tackle it in osgTerrain at runtime, adding the automatic adjustment of normals as tiles are loaded. Alas I just haven't yet had the time undertake the work, and don't at present have a slot for it. Feel free to dive in and add it :-) Robert. On Tue, Mar 2, 2010 at 4:22 PM, Craig S. Bosma <[email protected]>wrote: > Hi, > > I've been exploring VPB lately (0.9.11 or thereabouts) and I'm noticing > that normals seem to be not quite right at tile boundaries, causing visible > 'seams' in the lit terrain (see attached screen capture). Is anyone else > aware of this issue, or under what circumstances it appears? My osgdem usage > is pretty straightforward -- one SRTM geotiff and no imagery (for this > example): > > osgdem --PagedLOD -d dem/srtm_12_05.tif > > Thanks for any insight, > > Craig > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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