Compound

A container type which groups multiple aux items into a single item and gives them an additional group node which acts as the parent.

The editor only allows items of the same group to be compounded. I haven't tested what happens if you load a compound with multiple item types.

It's important to note that the nodes of the compounded items are also contained within this compound item rather than the regular node array at the end of the aux file.

Item ID: 0x28 (40)
Item file: aux

Structure

Field(s)	Description
struct kdop_item	See kDOP item. Flags: Bit 0: Water reflection Bit 1: Ignore cut planes
u64 node_uid	UID of the compound node.
u32 child_count array_struct children	Contains the items.
u32 child_node_count array_struct child_nodes	Contains the nodes of the items.