message: Show effective frame rate when (synchronously) denoising
diff: @@ -768,6 +768,8 @@ namespace ospray {
  }
  #ifdef OSPRAY_APPS_ENABLE_DENOISER
  ImGui::Text("Denoising rate: %.1f fps", denoiseFPS);
  + if (!asyncDenoising)
  + ImGui::Text("Total frame rate: %.1f fps", 1.f/(1.f/renderFPS + 1.f/denoiseFPS));
  #endif
  ImGui::Text(" Total GUI frame rate: %.1f fps", ImGui::GetIO().Framerate);
  ImGui::Text(" Total 3dwidget time: %.1f ms", lastTotalTime*1000.f);
  