Allow starting up the Shader sample with only GLSL support
Allow starting up the Shader sample with only GLSL support

paroj/ogre,RealityFactory/ogre,OGRECave/ogre,paroj/ogre,paroj/ogre,RealityFactory/ogre,OGRECave/ogre,paroj/ogre,OGRECave/ogre,paroj/ogre,RealityFactory/ogre,OGRECave/ogre,RealityFactory/ogre,RealityFactory/ogre,OGRECave/ogre