Volume Rendering: remove the workqueue handler immediatly if the loading is not async, thx holocronweaver
Volume Rendering: remove the workqueue handler immediatly if the loading is not
async, thx holocronweaver

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