InvokeAI/invokeai/app/invocations/shared.py
psychedelicious 15b33ad501 feat(nodes): add freeu support
Add support for FreeU. See:
- https://huggingface.co/docs/diffusers/main/en/using-diffusers/freeu
- https://github.com/ChenyangSi/FreeU

Implementation:
- `ModelPatcher.apply_freeu()` handles the enabling freeu (which is very simple with diffusers).
- `FreeUConfig` model added to hold the hyperparameters.
- `freeu_config` added as optional sub-field on `UNetField`.
- `FreeUInvocation` added, works like LoRA - chain it to add the FreeU config to the UNet
- No support for model-dependent presets, this will be a future workflow editor enhancement

Closes #4845
2023-10-11 13:49:28 +11:00

17 lines
623 B
Python

from pydantic import BaseModel, Field
from invokeai.app.invocations.baseinvocation import FieldDescriptions
class FreeUConfig(BaseModel):
"""
Configuration for the FreeU hyperparameters.
- https://huggingface.co/docs/diffusers/main/en/using-diffusers/freeu
- https://github.com/ChenyangSi/FreeU
"""
s1: float = Field(ge=-1, le=3, description=FieldDescriptions.freeu_s1)
s2: float = Field(ge=-1, le=3, description=FieldDescriptions.freeu_s2)
b1: float = Field(ge=-1, le=3, description=FieldDescriptions.freeu_b1)
b2: float = Field(ge=-1, le=3, description=FieldDescriptions.freeu_b2)