License missing — could you add one?

[martincollignon]

Hi! Thanks for sharing the RoofDiffusion code — great work on the ECCV 2024 paper.

I noticed the repository doesn't include a LICENSE file. Without one, the code is technically "all rights reserved" under default copyright, which makes it unclear whether others can use, modify, or build upon it.

Would you consider adding an open-source license (e.g., MIT, Apache 2.0, or similar)? This would make it much easier for the community to use and cite your work properly.

Thanks!