message: only set transfer function value range once (allows editing in GUI)
diff: @@ -103,7 +103,6 @@ namespace ospray {
  ospSetData(volume, "brickInfo", brickInfoData);
  child("voxelRange").setValue(valueRange.toVec2f());
  - child("transferFunction")["valueRange"].setValue(valueRange.toVec2f());
  }
  //! \brief Initialize this node's value from given XML node
  @@ -143,6 +142,8 @@ namespace ospray {
  }
  } else
  throw std::runtime_error("no filename set in xml node...");
  +
  + child("transferFunction")["valueRange"].setValue(valueRange.toVec2f());
  }
  OSP_REGISTER_SG_NODE(AMRVolume);
  