message: Fix type of sgIds
diff: @@ -164,7 +164,7 @@ namespace ospray {
  if (!node.hasChild("sgInstId")) {
  sgInstId = reduce24(getInstId());
  // for a node create SG-ids only once in SG
  - node.createChild("sgInstId", "int", sgInstId);
  + node.createChild("sgInstId", "uint32_t", sgInstId);
  node.child("sgInstId").setSGOnly();
  node.child("sgInstId").setSGNoUI();
  } else if (node.hasChild("sgInstId"))
  @@ -173,7 +173,7 @@ namespace ospray {
  if (node.hasChild("geomId") && !node.hasChild("sgGeomId")) {
  sgGeomId = reduce24(getGeomId());
  - node.createChild("sgGeomId", "int", sgGeomId);
  + node.createChild("sgGeomId", "uint32_t", sgGeomId);
  node.child("sgGeomId").setSGOnly();
  node.child("sgGeomId").setSGNoUI();
  } else if (node.hasChild("sgGeomId"))
  