Aabb3.fromBuffer constructor
Constructs Aabb3 with a min/max storage that views given buffer
starting at offset. offset has to be multiple of
Float64List.bytesPerElement.
Implementation
Aabb3.fromBuffer(ByteBuffer buffer, int offset)
    : _min = new Vector3.fromBuffer(buffer, offset),
      _max = new Vector3.fromBuffer(
          buffer, offset + Float64List.bytesPerElement * 3);