I'm betting you hit the same premultiplied alpha problem/limitation reported in SDL_image. http://bugzilla.libsdl.org/show_bug.cgi?id=868
The workaround/solution was to add a block of code at the end of the loader to un-premultiply the alpha (now in the codebase). If that is indeed the problem and the workaround works, I recommend you submit the fix for osgdb_ImageIO. Also, please file a bug report/feature request with Apple. The more reports they get, the better. -Eric _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

