<renderpath>
    <command type="scenepass" pass="base" vertexlights="true" metadata="base" />
    <command type="scenepass" pass="postopaque" />
    <command type="scenepass" pass="alpha" vertexlights="true" sort="backtofront" metadata="alpha" />
    <command type="scenepass" pass="postalpha" sort="backtofront" />
</renderpath>
