Hi Paul, Shader can be a solution, but a shader is a part of the StateSet, and i'm looking at the best way to avoid using them. But i'll keep that in mind.
Thanks. Regards, Vincent. 2009/6/9 Paul Speed <psp...@progeeks.com> > You could implement the full fixed function pipeline (the parts you need) > in a custom shader with the addition of manually controlling transparency > based on a uniform. Actually, a fragment shader may be all you need... > which is probably a lot easier than a fixed function pixel shader. > > I've been tempted to do this before myself as fading in/out a model for LOD > or otherwise is a real pain. > > -Paul > > Vincent Bourdier wrote: > >> Hi Robert, >> >> I am aware of the mess this is to implement... but I need it, and I cannot >> create my scene graph appropriately because it it generated by some exporter >> (osgExp) so I have to work with graphs I cannot control. >> >> I just was asking if there is an other solution I didn't tried, but I see >> there are no miracles, I need to dig into the issue more longer to make the >> better code I can. >> >> Thanks for help. >> >> Regards, >> Vincent. >> >> 2009/6/9 Robert Osfield <robert.osfi...@gmail.com <mailto: >> robert.osfi...@gmail.com>> >> >> Hi Vincent, >> >> On Tue, Jun 9, 2009 at 7:17 AM, Vincent >> Bourdier<vincent.bourd...@gmail.com >> <mailto:vincent.bourd...@gmail.com>> wrote: >> > Can't it be interesting for OSG to have a setTransparency() >> method on a node >> > ? using material or something else, but working in each case... >> >> The OSG's state handling is done with StateSet, you can multiple >> parent paths to allow you to decorate the subgraphs with different >> state. >> >> Trying to embed low state management like transparency in nodes would >> be an utter mess to implement and to maintain for developers and end >> users. Just create your scene graph appropriately and you will be >> able to do what you require without any modifications to the scene >> graph. >> >> Robert. >> _______________________________________________ >> osg-users mailing list >> osg-users@lists.openscenegraph.org >> <mailto: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 >> > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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