%!

(ps3d.inc) run

/page-begin {
gsave
72 dup scale
1 72 div setlinewidth
4 5 translate
} def

/page-end {
grestore
showpage
} def

[0 0 8 1] set-eye

{

page-begin

newpath
0 0 0 moveto3d
1 0 0 lineto3d
1 1 0 lineto3d
0 1 0 lineto3d
0 0 0 lineto3d
closepath
stroke

page-end

[0 1 0] 10 rotate3d

} loop