type materialvertexdeclaration [display="Material Vertex Declaration"]
{
  // No name pointer in this structure!
  u8 stream_count [ui, readonly, display="Stream Count"];
  u8 has_optional_source [ui, readonly, display="Has Optional Source"];
  u8 is_loaded [ui, readonly, display="Is Loaded"];

  skip(1);  // padding

  // Vertex stream routing
  routing = parse_here("materialvertexstreamrouting");
}