message: set valueRange on vdb volumes by querying evalMinMax
diff: @@ -217,6 +217,11 @@ namespace ospray {
  static_cast<float>(i2o[12]),
  static_cast<float>(i2o[13]),
  static_cast<float>(i2o[14])};
  +
  + // Query VDB voxel value range and set volume range
  + range1f valueRange;
  + vdb->evalMinMax(valueRange.lower, valueRange.upper);
  + child("valueRange") = valueRange;
  }
  #endif //USE_OPENVDB
  