Hi Ethan, It rather looks like you have an resolution issue with the texture, it's so low that when the tiles a divided the sampling of the texture results in the blocks - this is what you'd expect when you switch off interpolation of the imagery. Please just use the defaults, you'll tend to get the best all round results. Also have a look at the source resolution of the imagery and DEM's. The VPB project is written to scale up to handling terrabytes of source imagery and dems so through what data you have it.
Robert. On 13 June 2012 12:18, Ethan Fahy <[email protected]> wrote: > Thanks for the reply Robert. To clarify, when you say that I need to use one > of --RGB-16, --RGB-24, etc., do you mean that I must use one of those and any > of them should give me uncompressed output textures, or do you mean that > osgdem does not support uncompressed output textures and I must instead use > of one these? > > To clarify my position, I have been running osgdem as follows: > > osgdem -t texture.tif -d dem.tif --TERRAIN --no-interpolate-imagery --RGBA -l > 1000 -o out.ive > > I chose an arbitrarily large number for -l because it is my understanding > that osgdem will stop creating new levels after it has reached the resolution > of the source texture file; in my case that ends up being 6 lod levels. My > thinking is that if I zoom way in on the highest level of detail of the > out.ive terrain model and compare that to my original texture.tif file that > the pixels should be the same and that I should not see signs of compression. > I am attaching two images to demonstrate what I mean by signs of > compression. I am specifically referring to how the original image will have > 4 adjacent pixels of different colors that end up as one large pixel of equal > color in the output terrain model. > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=48271#48271 > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
