Count additive-LOD layers (nodes with additiveSublods > 1) in the tree.
Used to reconcile the header summary (which counts live streaming
loaders) with the tree (which renders a chip slot for every additive
layer): "1/5 additive active" instead of a bare "1 additive" that
contradicts five visible chips.
Count additive-LOD layers (nodes with
additiveSublods > 1) in the tree. Used to reconcile the header summary (which counts live streaming loaders) with the tree (which renders a chip slot for every additive layer): "1/5 additive active" instead of a bare "1 additive" that contradicts five visible chips.