An update. I finally got around to tackling this. I believe the issue was a float precision problem. I solved it by placing an osg::MatrixTransform above each drawable. That way all my matrix ops are computed using doubles and not floats. This addressed the problem nicely. The text is now stable from an altitude of hundreds of thousands of meters down to an altitude of dozens of meters, etc.
Thanks to all those that responded. On 9/8/07, sherman wilcox <[EMAIL PROTECTED]> wrote: > I'm having a bit of trouble with mangled text if I zoom in to close. > This text is on an osgDem generated ellispoid. In the attached > screenshots, the text appears correctly in text2.jpg. However, in > text3.jpg you'll see the problem. This only occurs if I zoom in really > close to the text. If I back off the camera a bit, the text reverts > back to the correct state. > > My questions are: > > 1) What's causing this? > 2) How best to address the issue? > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
