of celebrations but that didn't put a damper on people's spirits lighting designer christophe helen has been working for one year straight to put this project together. it's in the office this is all about showing how the cathedral has always been exposed to danger in the course of its twelve hundred years in all this and how the people of aachen have always saved it. on t.v. in the context of this festival week it's all a bit artistically interpreted into the theater. fourteen projectors and what's called pixel mapping created the three d. lighting a fact. this is not in the vitamins this is a three dimensional image with the photos like this here we see the front of the building which we scanned with a laser scanner or should i do you do this and that means we have a real three d. data and we know from every point what distance it is from here. it is in this and with this information we can build content with other special software that is adapted to the building in the office but what i'm going. to give you an is