frustumCulled property
Whether this node and its descendants should be tested against the
camera frustum each frame. When true (the default), subtrees
whose combinedLocalBounds don't intersect the frustum are
skipped entirely. Set to false for procedural geometry, large
terrain pieces, or anything else where the cached bound is
known-stale or known-misleading.
Subtrees that report no bound (skinned content, geometry without computable bounds) are treated as always visible regardless of this flag.
Implementation
bool frustumCulled = true;