3D IFS Fractal : Superstructure, No Way Out

[SteveArpo]

Fractal artists are so cool.

[florianchurch]

Fantastic! Thanks for positing -F.

[TheUnnamedGent]

If you could zoom in on the box that is inside, and show another box moving inside that, that would be cool.

[MakinMagicFractals]

I could do that, but for the purposes of this animation I used the RIFS flags so the moving box is "singular" i.e. there are no further copies of it elsewhere.