On Tue, Apr 28, 2009 at 10:19 AM, ami guru <dosto.wa...@gmail.com> wrote: > Hello Robert, > > I have already implemented the scenario that i am looking for in OpenGL by > setting the glUseProgram(0) to glUseProgram(whichShader). > > And i wanted to implement the same scenario in OSG. None of the example that > accompany the repository have implemented > the scenario that i m looking for except a discussion in the mailing list.
The OSG automatically does th glUseProgram(0) when you attach a blank osg::Program to a subgraph's StateSet. The OSG automatically does the glUseProgram(programID) when you attach a osg::Program with shaders. You can share shaders between multiple osg::Program, this means that you'll only pay for compilation once for each shared shader, and then once for linking for each osg::Program. It's a efficient as you can do it trying to manually do things yourself, so just use the standard OSG osg::Program/osg::Shader functionality. Don't try to be clever or over complicate things. Robert. _______________________________________________ osg-users mailing list email@example.com http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org