`Euler` sampler only works with `Alt.` method

[catboxanon]

The default behavior (not enabling Alt. (Stronger Effects)) doesn't seem to have any affect for me currently.

Below are attempts to reproduce something like that shown in the sample images. Images have infotext included. I don't have the SDXL lightning LoRA in use but I assume that shouldn't make a difference.

Disabled


Enabled


Enabled (with "Alt." method)


Tested on Forge and upstream A1111 dev branch.

https://github.com/lllyasviel/stable-diffusion-webui-forge/commit/b9705c58f66c6fd2c4a0168b26c5cf1fa6c0dde3 https://github.com/AUTOMATIC1111/stable-diffusion-webui/commit/7d1368c51ca39c23f65a3a7431211cd0235bddbe

[Haoming02]

Hmm, it does work for me.

• Forge:

  [masterpiece, best quality, high quality], 1girl, solo, smile, blush, casual, outdoors, park
  Negative prompt: [worst quality, low quality, normal quality]
  Steps: 16, Sampler: Euler a, CFG scale: 6, Seed: 2004495248, Size: 1024x1024, Model hash: 1449e5b0b9, Model: animagineXLV3_v30, Token merging ratio: 0.1, RNG: CPU, NGMS: 2, Vec CC Enabled: True, Vec CC Alt: False, Vec CC Brightness: -2.5, Vec CC Contrast: 0, Vec CC Saturation: 1, Vec CC R: 0, Vec CC G: 0, Vec CC B: 0, Vec CC Noise: Straight Abs., Vec CC Proc HrF: False, Vec CC Proc Ade: False, Vec CC Scaling: Flat, Vec CC Version: v2.0.1, Emphasis: No norm, Script: X/Y/Z plot, X Type: [Vec.CC] Brightness, X Values: "-2.5, 0", Y Type: [Vec.CC] Alt., Y Values: "False,True", Version: f0.0.17v1.8.0rc-latest-274-ge48533bd

---

• Automatic1111:

  a photo of a lady in red dress, in a basement
  Negative prompt: low quality, worst quality
  Steps: 16, Sampler: DPM++ 2M Karras, CFG scale: 6, Seed: 2019501589, Size: 1024x1024, Model hash: ae825c75cf, Model: juggernautXL_v7FP16VAEFix, FP8 weight: Enable for SDXL, Cache FP16 weight for LoRA: True, Token merging ratio: 0.1, RNG: CPU, NGMS: 2, Vec CC Enabled: True, Vec CC Alt: False, Vec CC Brightness: -2.5, Vec CC Contrast: 0, Vec CC Saturation: 1, Vec CC R: 0, Vec CC G: 0, Vec CC B: 0, Vec CC Noise: Straight Abs., Vec CC Proc HrF: False, Vec CC Proc Ade: False, Vec CC Scaling: Flat, Vec CC Version: v2.0.1, Script: X/Y/Z plot, X Type: [Vec.CC] Brightness, X Values: "-2.5,0", Y Type: [Vec.CC] Alt., Y Values: "False,True", Version: v1.8.0

---

Aside from the parameters, some Sampler also has stronger/weaker/no effects. I guess Euler only works when Alt. is on.

[catboxanon]

Oh, using Euler was the problem, interesting. I should have tried using other samplers.

I'll re-title this issue accordingly but feel free to close it if you don't think it's something fixable or you deem not worthy to account for. If it's the latter then it's probably worth noting somewhere in the README imo.

[Haoming02]

worth noting somewhere in the README

It’s actually there: https://github.com/Haoming02/sd-webui-vectorscope-cc?tab=readme-ov-file#known-issues

But yeah, I should test and add more documentation.

[catboxanon]

Oh, that's embarrassing on my part.

I'll close this then, feel free to re-open of course.