type materialvertexshader [display="Material Vertex Shader"]
{
  i32 shader_name_ptr [ui, readonly, display="Shader Name Ptr"];

  // Vertex shader program (parse header first)
  program = parse_here("materialvertexshaderprogram");

  // Parse shader name AFTER program (if inline)
  if (shader_name_ptr == -1) {
    shader_name = cstring() [ui, readonly, display="Shader Name"];
    _name = shader_name;
  }

  // Note: LoadDef program data parsing happens in materialvertexshaderprogram
}