Hi Robert, Thank you for helping me. I actually just started using VPB / osgdem so I can't say I'm familiar with all the concepts yet. I have only been using osgviewer to view the .ive or .osg models that osgdem generates. I was terribly wrong to say the alpha channel was being ignored; If I go into all the .osg files for the database generated by VPB, and add "GL_BLEND ON" to every geometry StateSet in the .osg files, the model displays as desired in osgviewer.
I'm wondering if there is a simple way to tell vpb to generate the database this way, instead of having to manually add them in? Thanks, Mike On Jul 1, 12:57 pm, "Robert Osfield" <[EMAIL PROTECTED]> wrote: > HiMike, > > What makes you think that the alpha is being ignored? Have you > enabled GL_BLEND in your app? > > Robert. > > > > On Tue, Jul 1, 2008 at 8:39 PM,MikeLewis<[EMAIL PROTECTED]> wrote: > > Hello, > > > I'm using OSG 2.4 and VPB 0.9.8 and I'm having an issue. I'm handing > > osgdem raster texture files with transparency but the resulting > > terrain models seem to ignore the alpha channels entirely. Also, I > > thought VPB alpha'd out NODATA regions. For some reason, it seems to > > be coloring them solid black instead, for me. Does VPB support having > > transparency in the texture imagery? I've tried various PNG and > > GeoTIFF images and seem to come upon the same result. I've tried the > > various --RGBA and --default-color command line options to no avail. > > Am I missing something? > > > Thanks > > _______________________________________________ > > osg-users mailing list > > [EMAIL PROTECTED] > >http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph... > > _______________________________________________ > osg-users mailing list > [EMAIL > PROTECTED]://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph... _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
