Fix for various Viewer::frame calls resetting the simulationTime

apps/openmw/mwgui/loadingscreen.cpp

@@ -259,7 +259,7 @@ namespace MWGui
             MWBase::Environment::get().getInputManager()->update(0, true, true);
 
             //osg::Timer timer;
-            mViewer->frame();
+            mViewer->frame(mViewer->getFrameStamp()->getSimulationTime());
             //std::cout << "frame took " << timer.time_m() << std::endl;
 
             //if (mViewer->getIncrementalCompileOperation())

apps/openmw/mwgui/windowmanagerimp.cpp

@@ -851,7 +851,7 @@ namespace MWGui
                 mMessageBoxManager->onFrame(0.f);
                 MWBase::Environment::get().getInputManager()->update(0, true, false);
 
-                mViewer->frame();
+                mViewer->frame(mViewer->getFrameStamp()->getSimulationTime());
             }
         }
     }
@@ -1744,7 +1744,7 @@ namespace MWGui
         {
             MWBase::Environment::get().getInputManager()->update(0, true, false);
 
-            mViewer->frame();
+            mViewer->frame(mViewer->getFrameStamp()->getSimulationTime());
         }
         mVideoWidget->stop();
 

apps/openmw/mwrender/renderingmanager.cpp

@@ -432,7 +432,7 @@ namespace MWRender
 
         mRootNode->addChild(rttCamera);
 
-        mViewer->frame();
+        mViewer->frame(mViewer->getFrameStamp()->getSimulationTime());
 
         // The draw needs to complete before we can copy back our image.
         osg::ref_ptr<NotifyDrawCompletedCallback> callback (new NotifyDrawCompletedCallback);