Hi Paul, Thanks for the test files and osgdem options used. Once I've clearer my inbox I'll have a look.
Robert. On 12/4/06, Paul de Repentigny <[EMAIL PROTECTED]> wrote:
Hi Robert, I run: osgdem -d elev_test_mtm8.tif on Windows XP VS71, using stock OSG 1.0 and stock OSG 1.2, with no environment variable set other than PATH, and with a small 70k Geotiff DEM. Using OSG 1.0, that gives 6 files worth 505KB; using OSG 1.2, we get 6 files weighting 1.77 MB. With a bigger DEM, I get the same 3.5:1 size ratio between the two versions (86 files gives 8.42 MB for OSG 1.0 versus 29.7 MB for OSG 1.2). I get identical results on Linux FC4. Links: A screenshot of the resulting mesh under OSG 1.0: http:// graphsynergie.com/osg/osg10.jpg. A screenshot of the resulting mesh under OSG 1.2: http:// graphsynergie.com/osg/osg12.jpg. Sample dataset used ( a 70 Kbytes 16 bits Geotiff DEM ): http:// graphsynergie.com/osg/elev_test_mtm8.tif. Thanks, Paul On 1-Dec-06, at 5:11 PM, Robert Osfield wrote: > Hi Paul, Luigi and Jason, > > On 12/1/06, Jason Beverage <[EMAIL PROTECTED]> wrote: >> I doubt the changes that I made had anything to do with the different >> simplifications. I thought you were talking about the old version of >> osgTerrain that didn't do any terrain simplification at all which >> resulted >> in a regular triangle mesh. Perhaps the simplifier has changed? > > Simplification has changed little since 1.0. > > I don't really know what might be up. Apart from Jason's changes to > the sampling little has been done to osgTerrain or the simplifier, its > principally just bug fixes. > > Without specific data, specific osgdem options and running the tests > before and after different versions of the OSG I really don't have > anything to go on. I don't even have a hunch to pass on. > > Robert. > _______________________________________________ > 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/
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