サンプラーの違い

参考

https://www.reddit.com/r/StableDiffusion/comments/zgu6wd/comment/izkhkxc/

Interactive deep dive into Stable Diffusion samplers

まとめ

速いし新しいし収束する : DPM++ 2M, DPM++ 2M Karras

速いけど収束しない : Euler_a, DPM2 a Karras

やってみる価値あり : DPM2 a, LMS, DPM++ 2S a Karras

バグあり : LMS Karras (at high steps

古くて高速だけど、最終結果はイマイチかも？ : Euler, LMS, Heun

遅い : DDIM, PLMS, DPM2, DPM 2 Karras, DPM Fast, DPM2 a

ステップ数が増えれば大抵どれも同じになる

DPM++ 2MとEuler_aは20ステップくらいで収束するのでとてもいい

二次絵ではDDIMが速くてイケてるというのを体感よく見かける気がするnomadoor.icon

収束比較

code:realisticVisionV13

RAW photo of a girl, analog style portrait,(high detailed skin:1.2),black hair,red scarf,navy blue coat,wavy hair,bob cut,bangs,lots of detail,turn sideways,blurred background,the evening sun,smile

code:Negative

(deformed iris, deformed pupils, semi-realistic, cgi, 3d, render, sketch, cartoon, drawing, anime:1.4), text, close up, cropped, out of frame, worst quality, low quality, jpeg artifacts, ugly, duplicate, morbid, mutilated, extra fingers, mutated hands, poorly drawn hands, poorly drawn face, mutation, deformed, blurry, dehydrated, bad anatomy, bad proportions, extra limbs, cloned face, disfigured, gross proportions, malformed limbs, missing arms, missing legs, extra arms, extra legs, fused fingers, too many fingers, long neck

CFG 7 / steps 4,6,8,10,12,14,16,18,20,22,24,26,28

Euler a / Euler / LMS / Heun

https://gyazo.com/15033bfa849385f8720436e28f71e765

DPM2 / DPM2 a / DPM++ 2S a / DPM++ 2M

https://gyazo.com/7f635eec147cb0ccc97122c8ae1076b7

DPM++ SDE / DPM fast / DPM adaptive / LMS Karras

https://gyazo.com/2737cdeffbfc4dd368a03be747f087db

DPM2 Karras / DPM2 a Karras / DPM++ 2S a Karras

https://gyazo.com/ac05dde979fc13c5f509ea01852a2f96

DPM++ 2M Karras / DPM++ SDE Karras / DDIM / PLMS

https://gyazo.com/0b0498b22b93561e77502dc9e2e64f89

サンプラー