ENH: ctkVTKRenderView - Do not render if widget is hidden

Libs/Visualization/VTK/Widgets/ctkVTKRenderView.cpp

@@ -261,7 +261,7 @@ void ctkVTKRenderView::forceRender()
 
   logger.trace(QString("forceRender - RenderEnabled: %1").arg(d->RenderEnabled));
 
-  if (!d->RenderEnabled)
+  if (!d->RenderEnabled || !this->isVisible())
     {
     return;
     }