From Johan Nouvel, fix to handling of transparent textured objects.
From Johan Nouvel, fix to handling of transparent textured objects.

Tweak from Robert Osfield, commented out disabling of depth write as this is not appropriate by default.


omega-hub/osg,ghub/osg,ntoand/osg,XiaoCC/osg,omega-hub/osg,artoolkit/osg,koshman86/osg,XiaoCC/osg,XiaoCC/osg,ntoand/osg,koshman86/osg,artoolkit/osg,artoolkit/osg,ntoand/osg,ghub/osg,omega-hub/osg,stmh/osg,artoolkit/osg,stmh/osg,koshman86/osg,ntoand/osg,ghub/osg,koshman86/osg,XiaoCC/osg,stmh/osg,omega-hub/osg,stmh/osg,ghub/osg,XiaoCC/osg,stmh/osg