An arbitrary number of starting lines (red) are written:
#declare starting_lines =
array[4]{
array[2]{ <-1,-1,-1>, <-1,-1,1> }
array[2]{ <-1,1,-1>, <-1,1,1> }
array[2]{ <1,-1,-1>, <1,-1,1> }
array[2]{ <1,1,-1>, <1,1,1> }
}
And then it will build a webby structure between them.
Sam
