Fix build when USE_RTSHADER_SYSTEM is false
Fix build when USE_RTSHADER_SYSTEM is false

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