message: have fast mode use a white ambient light
diff: @@ -408,7 +408,8 @@ namespace ospray {
  if (hdriLightFile == "") {
  auto &ambient = lights.createChild("ambient", "AmbientLight");
  ambient["intensity"] = fast ? 2.0f : 0.9f;
  - ambient["color"] = vec3f(174.f / 255.f, 218.f / 255.f, 255.f / 255.f);
  + ambient["color"] = fast ?
  + vec3f(1.f) : vec3f(174.f / 255.f, 218.f / 255.f, 255.f / 255.f);
  }
  }
  