Hi Shayne, On Mon, Jan 25, 2010 at 9:28 PM, Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC <[email protected]> wrote: > What I'm trying to do is minimize the texture "crawling" artifact I see when > I fly at a low azimuth view looking out along the terrain skin to the > horizon. I thought that playing with the texture filter setting on the > terrain texture might cure the problem. When I pipe the video out to a > projector, the crawling is even more pronounced.
Changing the filtering to linear will likely make the texture aliasing far worse. You'll need to use anisotropic filtering to improve the quality of textures at low viewing levels. osgTerrain::GeometryTechnique set the value to 16.0 which is the highest value so you won't be able to improve on it. You haven't said what type of database you have - an osg::Geometry based one or an osgTerrain::TerrainTile based one. Current svn/trunk version of VPB builds osgTerrain databases by default, while older versions built osg::Geometry polygonal based models. For the later you could set the max anisotropy filtering via an option, and also set it in the DatabasePager. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
