message: allow override of fast mode default via OSPRAY_APPS_FAST_MODE env variable
diff: @@ -98,12 +98,14 @@ namespace ospray {
  bool noDefaultLights = false;
  bool debug = false;
  std::string initialRendererType;
  - bool fast = false;
  box3f bboxWithoutPlane;
  bool addPlane =
  utility::getEnvVar<int>("OSPRAY_APPS_GROUND_PLANE").value_or(1);
  + bool fast =
  + utility::getEnvVar<int>("OSPRAY_APPS_FAST_MODE").value_or(0);
  +
  private:
  void parseGeneralCommandLine(int &ac, const char **&av);
  