This group node traverses its children, in order, several times, applying a different matrix each time. The matrices are stored in the multiple-value
matrix field. Each matrix is concatenated to the current transformation
matrix, and all of the children are traversed. This allows the user to put multiple copies of the same data in different locations easily and efficiently.
Traversing the
Nth child sets the current switch
value to
N, for use with inherited switch values (see
SoSwitch).