Hi Stephan, I'm not sure. I shall investigate further.
Paul's suggestion has demonstrated that the osgviewer displays the png correctly, so I guess that, coupled with you suggestion, gives me a good starting point for investigating what's wrong at my end. Many thanks. Neil ---- Stephan Maximilian Huber <ratzf...@digitalmind.de> wrote: > neil.hug...@tesco.net schrieb: > > Hi All, > > > > Please find attached a png file that has a purple circle, black boarder, > > and an alpha channel. I'm using OSG1.2, and trying to read it in via the > > png pluggin, and apply it to an object. The PNG loads, but the alpha > > channel is being ignored, and I get solid white instead of the underlying > > object color/texture. > > > > Please could someone tell me is there something wrong with the png file, > > the reader, or am I doing something that's not possible. > > > > Many thanks for any help. > > there was no attachment. > > Have you enabled GL_BLEND for your geometry? > > node->getOrCreateStateSet()->setMode(GL_BLEND, osg::StateAttribute::ON); > > > cheers, > Stephan > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org