huggingface/diffusers

Support multiple control nets in the `StableDiffusionControlNetXSPipeline`/`StableDiffusionXLControlNetXSPipeline`

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#8,434 opened on Jun 7, 2024

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Description

Is your feature request related to a problem? Please describe. The StableDiffusionControlNetPipeline/StableDiffusionXLControlNetPipeline allow you to specify a list of control nets (i.e. depth and canny)

However, the new ControlNetXS pipelines only allow you provide a single control net

Describe the solution you'd like. I want to be able to do:

vae = AutoencoderKL.from_pretrained("madebyollin/sdxl-vae-fp16-fix", torch_dtype=torch.float16)
canny_controlnet = ControlNetXSAdapter.from_pretrained(
    "UmerHA/Testing-ConrolNetXS-SDXL-canny", torch_dtype=torch.float16
)
depth_controlnet = ControlNetXSAdapter.from_pretrained(
    "UmerHA/Testing-ConrolNetXS-SDXL-depth", torch_dtype=torch.float16
)
pipe = StableDiffusionXLControlNetXSPipeline.from_pretrained(
    "stabilityai/stable-diffusion-xl-base-1.0", controlnet=[canny_controlnet, depth_controlnet], torch_dtype=torch.float16
)

Contributor guide

Tech stack
pythonpytorch
Domain
machine learningai
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
PythonPyTorchfamiliarity with diffusers library
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Review the existing StableDiffusionControlNetPipeline to understand how it handles a list of controlnets. Examine the ControlNetXS pipeline implementations (StableDiffusionControlNetXSPipeline and StableDiffusionXLControlNetXSPipeline) to identify where to add multiple controlnet support. Focus on the init and forward methods, and ensure that conditional parameters like controlnet conditioning scale are adapted accordingly.
Support multiple control nets in the `StableDiffusionControlNetXSPipeline`/`StableDiffusionXLControlNetXSPipeline` · huggingface/diffusers#8434 | Good First Issue