RwAddChildToClump(RwClump *parent, RwClump *child);
Makes the second clump a child of the first. If child is already a child of another clump, it will be removed from that clumps list of children before being added to parent.
parent Pointer to the parent clump.
child Pointer to the child clump.
The argument parent if successful, and NULL otherwise.
After addition, the childs modeling and joint (articulation) transformations will be relative to those of its new parent.