merge chroma radiance (tests, diff)

[Ednaordinary]

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[Ednaordinary]

@lodestone-rock hey, I helped implement the original version of chroma into diffusers and I'm working on getting radiance in! what would you recommend for default params (both for 0.4 and x0)? thanks for making chroma!

[Ednaordinary]

contd. huggingface#12850

[lodestone-rock]

the default params should be no different than chroma
atleast that's how i trained it
it's just now it's in pixel space

[lodestone-rock]

i'm not quite sure how to translate comfyui default params to huggingface, but in comfy there's this default workflow for chroma radiance and that's pretty good

[Ednaordinary]

hmm.. I've adapted best I've could (example shown in diffusers pr), but something in what I believe is likely the scheduler or the nerf model is wrong

[lodestone-rock]

try using simple euler instead for sampling instead of heun?

[Ednaordinary]

looks like at some point while debugging I removed the attention mask and didn't add it back.. getting closer, but still not there, just yet. It also seems both Euler and Heun are converging on the same image, which is interesting