Hi Gert, I'll try to take a look at these when I have time. Can you post some images of what the output looks like using OSG 1.1 (or whatever the "correct" output should be)?
Jason -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gert van Maren Sent: Monday, November 13, 2006 3:08 A To: [email protected] Subject: [osg-users] osgTerrain DataSet bug - more info Hi Jason, Got a bit further today. It seems to have something to do with the extent of the DEM and the extent of the textures. Have a look at the errors I am getting (OSGDEM1.2 with GDAL 1.3.2 -> same result with GDAL 1.2.6): http://www.k2vi.com/osg/osgdem_err1.jpg http://www.k2vi.com/osg/osgdem_err2.jpg http://www.k2vi.com/osg/osgdem_err3.jpg http://www.k2vi.com/osg/osgdem_err4.jpg As you can see the texture shifts at a certain LOD level. Now in this exmaple my DEM was larger than the imagery. If I make the DEM the same extent as the combined images it works fine. Any idea? OSGdem 1.1 works fine with both DEMs Test data: http://www.k2vi.com/osg/OSGdem12_data.zip test_dem1.tif is the larger DEM -> error test_dem2.tif is same extent -> no error Cheers Gert > Hi Gert, > Try setting the interpolateTerrain bool to false in the readHeightField > method and see if that fixes your problems. That shouldn't have > anything to do with the first issue you mentioned (textures shifting > from LOD level to LOD level) but may fix the second issue. > Jason -- Gert van Maren Head of Research & Development K2Vi Virtual Reality Software Data Interface Technologies Ltd Phone: +64 21 2855581 Email: [EMAIL PROTECTED] Web: http://www.k2vi.com _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/ _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
