Derive a per-node view state. Pure function; takes the base viewState
the loader's SceneNodeIndex (the node's composed world
nd_transform, looked up in O(1)) as inputs. null = no scene yet, so
no nd_transform applies. There is deliberately no bare-graph form: a
walk from the root per derivation made one pass O(N²) on a many-part
partition.
Derive a per-node view state. Pure function; takes the base viewState
nd_transform, looked up in O(1)) as inputs.null= no scene yet, so nond_transformapplies. There is deliberately no bare-graph form: a walk from the root per derivation made one pass O(N²) on a many-part partition.