Decodes a hierarchy sidecar into the traversal order the document would have
had. Nothing here consults the glTF document: the caller matches retained
node indexes against it, so a sidecar naming a node the document does not
have is refused there rather than silently dropped here.
Decodes a hierarchy sidecar into the traversal order the document would have had. Nothing here consults the glTF document: the caller matches retained node indexes against it, so a sidecar naming a node the document does not have is refused there rather than silently dropped here.