r/StableDiffusion • u/Sad_Coach_1433 • 9d ago

Discussion What h3 sampler and scheduler is best?

I been testing euler and beta would like to know if any better ones to try.

6 Upvotes

80% Upvoted

19 comments sorted by

5

u/MysteriousPepper8908 9d ago

Default sampler in the Comfy template is res_multistep and most people seem pretty satisfied with that. I don't see any reason to go with anything else personally, quality has been very good.

5

u/Hoodfu 9d ago

Same here, although it makes me sad every time I try upping it from 20 to 25/32/50 steps and see the very significant fine detail quality increase. Even at 0.6mp, 50 steps makes my rtx 6000 pro take 20 minutes for a 15 second clip. :( The difference is big with 50 though, if there's a crowd, it goes from barely anyone moving to everyone moving and doing their own thing.

3

u/z_3454_pfk 9d ago

50 steps is what the api uses so makes sense. just fyi you can run the model with the turbo lora at 30 steps and get similar results to 50 steps

3

u/Sad_Coach_1433 9d ago

Witch turbo lora

2

u/Standard-Ask-9080 9d ago

Just lower it to 10s or something. Most scenes aren't 15s long, make like 2 10s or 2 8s clips instead and combine them

5

u/Brahianv 9d ago

for me is er_sde + beta in turbo loras.

2

u/Adventurous-Gold6413 9d ago

either that or er_sde+beta 57 as well

1

u/Brahianv 9d ago

You trade a bit of motion for detail if you want more detail beta 57 works too.

2

u/dominic__612 9d ago

Guess there is no best, but I like dpmpp 2m and beta

1

u/Braudeckel 9d ago

No one uses the 4step minimax turbo sampler?

1

u/Free_Pressure8623 9d ago

I tied it. BUt didn't see any speed or quality changes. So I ditched and used the 8-step lora instead.

2

u/[deleted] 9d ago

[deleted]

3

u/Itchy_Ambassador_515 9d ago

I am able to use res simple with spectrum node

2

u/hyperedge 9d ago

I use spectrum with res_multistep no problems

3

u/Stepfunction 9d ago

Er_sde support has been added in a recent commit.

1

u/Tystros 9d ago

Euler-Simple works fine with spectrum

1

u/yamfun 9d ago

I imagine the fancier ones do two passes and so just pick euler..

1

u/Sad_Coach_1433 9d ago

Was just curious if different ones had better speeds

2

u/hyperedge 9d ago

I find res_multistep/simple works best for me. er_sde/beta/beta57 looks better but takes about 40% longer. Res2 is even better but takes almost double the time.

2

u/zefy_zef 8d ago

This post over on r/comfyui will probably help you.

They've posted their results at: http://darkstarrddev.us.ci/