Combine resolved LOD flags with one element's attributes: the pure per-element combinator adapters apply at draw time. Returns the input object untouched when the tier is 0 (the hot-path common case allocates nothing).
Combine resolved LOD flags with one element's attributes: the pure per-element combinator adapters apply at draw time. Returns the input object untouched when the tier is 0 (the hot-path common case allocates nothing).