Fix character preview

apps/openmw/mwrender/characterpreview.cpp

@@ -99,7 +99,7 @@ namespace MWRender
 
         osg::ref_ptr<SceneUtil::LightManager> lightManager = new SceneUtil::LightManager;
         lightManager->setStartLight(1);
-        osg::ref_ptr<osg::StateSet> stateset = new osg::StateSet;
+        osg::ref_ptr<osg::StateSet> stateset = lightManager->getOrCreateStateSet();
         stateset->setMode(GL_LIGHTING, osg::StateAttribute::ON);
         stateset->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
         stateset->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
@@ -130,7 +130,6 @@ namespace MWRender
 
         lightSource->setStateSetModes(*stateset, osg::StateAttribute::ON);
 
-        lightManager->setStateSet(stateset);
         lightManager->addChild(lightSource);
 
         mCamera->addChild(lightManager);