No problem, It was interesting, so I wanted to test some ideaq.
For me 3 steps :
- Divide your facade in rectangles
- Choose what rectangle will have a shape
- Make then 3d with some noise
For the 1) if you can join all facade elements in one pseudo surface you will then be able to paramatrize in UVW, the work in UVW and remap everything at the end.
If you want more answers from the forum post the parts where you have difficulties.
A vray render.
