Fixed issue 1049(using first viewport size as framebuffer size) and 554(loading and ending screen will be visible on the first viewport only). Also fixed such that Lua Console adapts to window size and not framebuffer size.

src/scene/scenegraphnode.cpp

@@ -684,7 +684,7 @@ void SceneGraphNode::computeScreenSpaceData(RenderData& newData) {
         return;
     }
 
-    glm::ivec2 res = global::windowDelegate.currentWindowSize();
+    glm::ivec2 res = global::windowDelegate.currentSubwindowSize();
     
     // Get the radius of node
     double nodeRadius = static_cast<double>(this->boundingSphere());