georgefen/Hi-SD3

Enable 2048x2048 Generation for Stable Diffusion 3

SD3 generates noticeable artifacts at high resolutions, indicating that the positional embeddings at high positions have not been well-trained.

I performed 2000 steps of full fine-tuning on the Stable Diffusion 3 medium model using a 2048x2048 dataset, enabling SD3 to achieve good generation results at this resolution.