Question about image2image texture tiling

[RuihanGao]

Hi,

Thanks for your great work!

I have some questions about the results for "Tiled Texture Synthesis" (in the website teaser and in Fig. 8 of the supplementary material).

Are these textures generated from text prompts or input images? If I want to tile exisiting texture patch into larger size, how can I do that?
Thanks for providing images/mask.jpg for tiling in X direction. How should we design mask to enable 2x2 or even larger grid tiling?