message: adding volume ns to sg
diff: @@ -98,6 +98,7 @@ namespace ospray {
  createChild("volumeClippingBoxLower", "vec3f", vec3f(0.f));
  createChild("volumeClippingBoxUpper", "vec3f", vec3f(0.f));
  createChild("specular", "vec3f", vec3f(0.3f));
  + createChild("ns", "float", 20.f);
  createChild("gridOrigin", "vec3f", vec3f(0.0f));
  createChild("gridSpacing", "vec3f", vec3f(1.f));
  createChild("isosurfaceEnabled", "bool", false);
  