combinedLocalAabb property
Union of this node's mesh primitive AABBs together with each
descendant node's combined_local_aabb transformed by the
descendant's local transform. Expressed in this node's local space.
Lets the runtime cull entire subtrees with a single AABB-vs-frustum test instead of recomputing the union every frame. Optional for backwards compatibility.
Implementation
Aabb3T? combinedLocalAabb;