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AYS + Ella = anyone else getting superdark image generations?

Open Duemellon opened this issue 1 year ago • 7 comments

When I combine the the images came out dark, like barely discernible using EpicRealism 1.5 & some other models. Is this a thing for other people too?

Duemellon avatar May 05 '24 03:05 Duemellon

I think it's the default step count for AYS that was 10. Changed it 20 & it makes it better.

Duemellon avatar May 05 '24 03:05 Duemellon

still darker than usual even with more steps.

Duemellon avatar May 05 '24 03:05 Duemellon

I think AYS steps and denoise should be the same as Set ELLA Timesteps node. Do you mind share your workflow?

JettHu avatar May 05 '24 08:05 JettHu

15 step, euler ComfyUI_04940_

20 step euler ComfyUI_04949_

30 step euler ComfyUI_04955_

20 step dpmpp ComfyUI_04956_

30 step dpmpp ComfyUI_04961_

20 step euler ComfyUI_04971_

30 step dpmpp ComfyUI_04967_

Maybe it's the model? I tried other models & they trend this way too. No one else seems to be having this complaint so it's probably just something I'm doing.

ELLA-AYS.json

Duemellon avatar May 06 '24 13:05 Duemellon

I noticed that add_noise is turned off in your workflow.

image

You can try turning it on.

steps add_noise on add_noise off
20 image image
10 image image

However, I did find that the quality of the generated images will be higher when the steps are larger.

JettHu avatar May 07 '24 02:05 JettHu

I think AYS steps and denoise should be the same as Set ELLA Timesteps node. Do you mind share your workflow?

Sorry, what I said before is wrong. Once the sigmas is given to Set ELLA Timesteps node, it's other parameters (scheduler, steps, and denoise) will not take effect.

JettHu avatar May 07 '24 02:05 JettHu

In addition, it may be necessary to lower the cfg

The results in the paper used DPM-Solver++(2M) with 10 steps, so I used the same parameters to generate more images:

KSamplerSelect sampler_name: dpmpp_2m; AlignYourStepsScheduler model_type: SD1, steps: 10, denoise: 1.0

all result with same noise_seed

cfg 3 4 5 6 7 8
image image image image image image

JettHu avatar May 07 '24 02:05 JettHu

add noise, CFG, & step count helped

Duemellon avatar May 14 '24 22:05 Duemellon