Hyper-SDXL Preset

[tbuyle]

I wanted to test the new Hyper-SD and created a simple preset to use it.

hypersd.json

I choose to use the 4 steps Lora but similar settings should work with other step counts.

Some parameters may still require tweaking, it's really a quick and dirty first version.

[xhoxye]

    "default_sampler": "ddim",
    "default_scheduler": "sgm_uniform",

Is this the best combination?

[tbuyle]

Not sure. But it's the one I found in the ComfyUI workflow in the HF Repo : https://huggingface.co/ByteDance/Hyper-SD/blob/main/comfyui/Hyper-SDXL-Nsteps-lora-workflow.json

[xhoxye]

My test results, using the combination below is better.
Fooocus 2.3.1, Juggernaut
euler_a + karras，CFG=1.0
4 steps Lora, steps=8 ,
2 steps Lora, steps=5 ,

test
Fooocus v2.3.1
juggernautXL_version6Rundiffusion.safetensors
styles = none

A female magician wearing a magic hat,Sitting at the street coffee table drinking coffee

[tbuyle]

I think we'll have to test en tinker with params before finding the best ones. Simply update the preset as per your preferences.

There are some interesting suggestions on these reddit posts :

• https://www.reddit.com/r/StableDiffusion/comments/1caxefs/hyper_sdxl_best_settings_and_my_assessment_of_it/
• https://www.reddit.com/r/StableDiffusion/comments/1caalgo/from_the_creators_of_sdxl_lightning_introduce/

[mashb1t]

@tbuyle Fooocus sadly currently doesn't support TCDScheduler, which is why it can't use Hyper-SD or TCD to full potential.

[wangfeng35]

Correct me if I get it wrong.
In https://huggingface.co/ByteDance/Hyper-SD , only Unified LoRA using the TCDScheduler, while 2-Steps, 4-Steps, 8-steps LoRA are using DDIMScheduler. So is it possibile to using Hyper-SD 2-Steps, 4-Steps, 8-steps LoRA in Fooocus to full potential?

[mashb1t]

@wangfeng35 depends on your definition of full potential. I'll check this out today in the evening (in 6 hours) and give the LoRAs a try tro evaluate if we should add another performance mode!

[wangfeng35]

Thanks! You're making Fooocus awesome!

[mashb1t]

implemented as WIP for evaluation, see #2812

[mashb1t]

The poll for Lightning vs Hyper-SD (both 4step LoRA) is up now and you can participate here: #2813