Questions about fine-tuning ControlNet-Tile to achieve super-resolution

[snowflakewang]

Hello, thank you for your great work on high-resolution image-to-3D generation! I noticed that you utilized a ControlNet-Tile based on SD1.5 to achieve the first stage of super-resolution. I am curious about which data you used to fine-tune. It seems that fine-tuning a ControlNet usually needs data pairs (e.g. image-normal pair, image-depth pair, LR-HR pair).

Thank you :)