pub fn compose_instance_world_row_major(meta: &InstanceMeta) -> [f64; 16]Expand description
Compose an occurrence’s full PRE-RTC world transform transform·local·canonical
as a row-major [f64; 16]. Public so the processing crate’s don’t-bake finalize
(#1623 Phase 2) can record the SAME world placement collate_refs computes for a
baked occurrence — without materializing the occurrence’s vertices.