message: RenderScene was only looking for nodes named exactly "tranferFunction"
diff: @@ -256,7 +256,7 @@ namespace ospray {
  auto &vol = node.valueAs<cpp::Volume>();
  cpp::VolumetricModel model(vol);
  - if (node.hasChild("transferFunction")) {
  + if (node.hasChildOfType(sg::NodeType::TRANSFER_FUNCTION)) {
  model.setParam("transferFunction",
  node["transferFunction"].valueAs<cpp::TransferFunction>());
  } else
  