They took photographs, they fed the photographs into their computer program, and that computer program shaped a sand dune and then took that sand dune shape and turned it into -- at their instructions, using standard software with slight modifications -- a set of instructions for pieces of wood.
Fotografaram e inseriram as fotografias no software deles, e o programa moldou a duna e depois, pegaram a forma da duna e transformaram-na -- de acordo com as instruções, usando softwares padrões, com pequenas modificações -- em um conjunto de instruções para pedaços de madeira.