Kitsunetic

 Paint-it paper compares those of the papers.

### Q1 I'm sorry, but I didn't quite understand your question. Could you please provide more details? ### Q2 The variable `ts` is typically processed using something like positional embeddings...

https://github.com/Kitsunetic/SDF-Diffusion/blob/2bc5fe0efe55ad8ebfee5b59cb71688ff7850893/src/models/diffusion.py#L341-L344 Based on `sample_ddim` function, the `ts` is sampled iteratively with a specific step size, where the step size would be larger than 1 when `ddim_S > 1`.

That’s interesting point. I think synchronizing `sqrt_alphas_cumprod_prev` when `step=0` is important. For example, when DDPM step size is 1000 and DDIM step size is 20: DDPM step | prev |...