message: change default sampling rate
diff: @@ -72,7 +72,7 @@ namespace ospray {
  if (importerNode.hasChildRecursive("gradientShadingEnabled"))
  importerNode.childRecursive("gradientShadingEnabled") = false;
  if (importerNode.hasChildRecursive("samplingRate"))
  - importerNode.childRecursive("samplingRate") = 0.25f;
  + importerNode.childRecursive("samplingRate") = 0.125f;
  if (importerNode.hasChildRecursive("adaptiveMaxSamplingRate"))
  importerNode.childRecursive("adaptiveMaxSamplingRate") = 1.0f;
  