How to install and use ComfyUI - Stable Diffusion.

Sebastian Kamph
14 Jul 202312:44

TLDRThis video tutorial introduces the installation and basic usage of Comfy UI, a powerful and customizable user interface that offers total control over workflows. It guides viewers through downloading the software from GitHub, setting up the environment for both Nvidia GPU and CPU users, and troubleshooting common issues. The video also covers advanced features like importing models from Civitai, utilizing nodes to create personalized workflows, and the ability to import and analyze other users' workflows for learning and inspiration. The tutorial emphasizes the flexibility and potential of Comfy UI for rendering images, with a focus on its node-based system and the availability of numerous nodes for various tasks.

Takeaways

  • 🚀 Comfy UI is a powerful user interface that offers total freedom and control to create custom workflows.
  • 🔗 The installation process begins by visiting GitHub to find and download Comfy UI, with direct download links provided for Windows users.
  • 📂 After downloading, users will obtain a .zip file which can be extracted using a program like WinRAR or 7-Zip.
  • 📖 It's important to read the README file included in the folder for specific instructions based on the user's hardware, such as Nvidia GPU or CPU usage.
  • 🔄 The update process is straightforward, with an option to simply press 'update' within the Comfy UI interface.
  • 🔧 For users with existing installations of stable Fusion or Automatic 1111, there's an option to integrate models by editing the config UI directory.
  • 📈 Downloading additional models from Civitai is recommended for those without any installed models.
  • 🎨 Comfy UI operates through a node-based system, allowing users to connect features and create personalized workflows.
  • 🛠 The interface includes nodes for loading checkpoints, setting prompts, and configuring samplers, among other customizable settings.
  • 🔍 Users can learn from others' workflows by uploading an image created with Comfy UI, which imports the workflow and settings used to generate it.
  • 📚 Comfy UI's GitHub repository provides numerous examples and samples for more in-depth learning and exploration of the tool's capabilities.
  • 🔄 The Comfy UI manager allows users to install custom nodes to expand the functionality of their workflows.

Q & A

  • What is Comfy UI?

    -Comfy UI is a powerful user interface that provides total freedom and control to create your own workflows.

  • How can you install Comfy UI?

    -To install Comfy UI, you need to visit GitHub, find the Comfy UI repository, and download the direct link provided for Windows. After downloading the .zip file, extract it to your desired location using a program like WinRAR or 7-Zip.

  • What are the system requirements for running Comfy UI?

    -If you have an Nvidia GPU, you should use the path file specified in the README for optimal performance. If you don't have an Nvidia GPU, you can run Comfy UI using your CPU, but it will be noticeably slower.

  • How do you update Comfy UI?

    -To update Comfy UI, you can go to the 'update' section in the UI and press the 'update Comfy UI' button.

  • What should you do if you have another installation of Stable Fusion with models?

    -If you have models from another installation of Stable Fusion, you can go to the 'config UI' directory, rename the existing file, and remove the example. Then, edit the file with a text editor like Notepad to set your base path to where your Stable Fusion models are located.

  • What is the purpose of the model checkpoint?

    -The model checkpoint is important for the proper functioning of Comfy UI. If you encounter a red error in the UI, ensure that you have a model checkpoint downloaded as specified in the README.

  • How can you use Comfy UI with Automatic 1111 models?

    -If you have Automatic 1111 installed, you can select the model in the 'load checkpoint' or 'load models' node in Comfy UI, which will ensure that the models you use in Automatic 1111 are also used in Comfy UI.

  • Nodes in Comfy UI are similar to other user interfaces but everything is connected by nodes. The power of nodes is that you can connect various features together in almost any way you want, creating your own custom workflows.

    -Nodes in Comfy UI are the building blocks for creating your workflows. They allow you to connect different features and settings together, enabling you to create complex and customized processes for generating images.

  • How can you use an image to understand its workflow in Comfy UI?

    -You can drag an image into Comfy UI, and it will provide you with the workflow and all the nodes used to create that image, including settings. This is a powerful feature for learning from other users' workflows and iterating on them.

  • What is the purpose of the Comfy UI manager?

    -The Comfy UI manager helps you install custom nodes that might be missing from your Comfy UI installation. By downloading the manager and extracting its contents, you can use it to install the required custom nodes and enhance the functionality of your Comfy UI.

  • Where can you find examples of node setups for Comfy UI?

    -You can find examples of node setups for various purposes, such as in-painting, on the Comfy UI GitHub page. These examples provide a clear guide on how to set up nodes for specific tasks and can serve as a learning resource.

Outlines

00:00

🚀 Introduction to Comfy UI Installation and Basics

The paragraph begins with an introduction to the video's purpose, which is to guide viewers on how to install and run Comfy UI, a powerful user interface that offers complete freedom and control in creating workflows. The speaker plans to share advanced workflows and an advanced extension that will be beneficial to the viewers. The humor about chickens being funny leads into the main topic, emphasizing the excitement about Comfy UI. The speaker then outlines the steps for installation, starting from finding Comfy UI on GitHub, downloading the file, and using a program like WinRAR or 7-Zip to extract the files. It is mentioned that the README file is crucial, as it provides instructions for using the software, especially for users with Nvidia GPUs. Troubleshooting tips are also covered, such as dealing with a red error in the UI by ensuring the presence of a model checkpoint. The speaker then discusses the process of updating Comfy UI and configuring it to work with existing models from another installation of stable Fusion. The paragraph concludes with a brief mention of downloading a model from Civitai if viewers do not have any models installed.

05:00

📌 Comfy UI Interface Overview and Customization

This paragraph delves into the Comfy UI interface, highlighting its node-based structure that allows users to connect features and create personalized workflows. The speaker explains the process of launching Comfy UI with an Nvidia GPU and introduces the default interface. The concept of nodes, similar to other user interfaces, is discussed, emphasizing the flexibility they offer in connecting and arranging features. The speaker demonstrates how to use the load checkpoint or load models node, select a model, and set a default prompt. The explanation continues with the negative prompt and how it interacts with the sampler, showing how the system differentiates between positive and negative prompts. The paragraph also touches on the rendering process, the importance of the seed in determining the base noise for image generation, and the options for adjusting the number of steps and the CFG scale. The speaker then briefly introduces the advanced features of Comfy UI, such as the Decay sample node and the ability to run multiple K Samplers with different step ranges. The paragraph concludes by encouraging viewers to explore the available nodes and learn from other users' workflows.

10:03

🌟 Advanced Features and Custom Node Installation

The final paragraph focuses on the advanced capabilities of Comfy UI, particularly the ability to import and analyze other users' workflows to learn and create new images. The speaker demonstrates how importing an image into Comfy UI can reveal the workflow and settings used to create it, although errors may occur if custom nodes are missing. The introduction of the Comfy UI manager is discussed as a solution to installing missing custom nodes. The speaker guides viewers through the process of downloading the manager, extracting its contents, and restarting Comfy UI to install the required custom nodes. The paragraph ends with a practical example of how the manager can resolve errors and enable new workflows, showcasing the power of the node-based system. The speaker also encourages viewers to explore other nodes and learn from the examples provided in Comfy UI's GitHub repository, highlighting the potential for in-depth learning and creative exploration within the platform.

Mindmap

Keywords

💡Comfy UI

Comfy UI is a powerful user interface that provides users with total freedom and control to create their own workflows. It is the main focus of the video, where the creator demonstrates how to install and run it. The interface is node-based, allowing users to connect various features and create custom workflows according to their needs. The video showcases the flexibility of Comfy UI by explaining how to use it with different models and settings.

💡GitHub

GitHub is a platform where developers store and manage their code, and it is mentioned in the video as the source for downloading Comfy UI. It is a crucial part of the installation process, as users are directed to GitHub to find the Comfy UI repository and follow the instructions for installation provided in the readme file.

💡Nvidia GPU

Nvidia GPU refers to the Graphics Processing Unit manufactured by Nvidia, which is used for rendering and processing tasks. In the context of the video, having an Nvidia GPU is recommended for running Comfy UI efficiently, as it can significantly speed up the workflow creation process. The video provides specific instructions for users with an Nvidia GPU, emphasizing the performance benefits.

💡7z

7z is a file format and the name of the free file compression program that uses the highest compression ratio among similar tools. In the video, 7z is mentioned as the preferred method for extracting the downloaded Comfy UI file, indicating its utility in handling large files associated with the software.

💡Workflows

Workflows in the context of the video refer to the series of steps or processes that users create within Comfy UI to achieve a specific outcome, such as generating images. The video emphasizes the flexibility of Comfy UI in allowing users to create advanced workflows by connecting various nodes, which represent different features and functions.

💡Nodes

Nodes in Comfy UI are the building blocks of a workflow. They represent individual components or functions that can be connected to create complex processes. The video highlights the power of nodes in allowing users to customize their workflows by connecting features in almost any way they desire.

💡Checkpoints

Checkpoints in the video refer to saved models or states of a model that can be loaded into Comfy UI for use in workflows. They are essential for the image generation process, as they define the base model from which the AI will create or modify images based on the prompts and settings provided.

💡Custom Nodes

Custom nodes are additional components that can be installed in Comfy UI to extend its functionality. These nodes are not part of the default installation and must be downloaded and installed separately. They provide users with more options and flexibility in creating specialized workflows.

💡Config UI

Config UI refers to the configuration user interface within Comfy UI that allows users to set specific parameters for their workflows. It is where users can define their base paths, connect to existing models, and adjust settings to tailor their image generation process.

💡Stable Fusion

Stable Fusion is a term used in the video to refer to a specific version or type of model that can be used within Comfy UI. It is mentioned in the context of recommending certain settings, like the DPM plus plus 2m and changing the scheduler to Keras, for optimal performance with these models.

💡Manager

In the context of the video, the 'manager' refers to the Comfy UI manager, a tool designed to help users install custom nodes that are not included in the standard Comfy UI package. The manager simplifies the process of adding new functionalities and expanding the capabilities of the user interface.

Highlights

Introduction to Comfy UI, a powerful user interface for creating custom workflows.

Total freedom and control in designing your own workflows with Comfy UI.

Downloading Comfy UI from GitHub and installation instructions for Windows users.

The importance of using the correct path file for Nvidia GPU users.

Troubleshooting tips such as ensuring a model checkpoint for red error resolution.

Instructions for updating Comfy UI and configuring it with existing models.

Recommendation to download models from Civitai for those without any.

Explanation of nodes and their role in connecting features within the UI.

Demonstration of how to use the load checkpoint or load models node.

Details on customizing prompts and the significance of positive and negative prompts.

How to set up and adjust the K sampler and its settings for image rendering.

The process of rendering images and saving them using the UI.

Explanation of the width, height, and batch size settings for image creation.

The role of the seed in determining the base noise for image generation.

Recommendations for the DPM plus plus 2m sampler and scheduler settings.

Instructions on adding more nodes and the variety of available nodes.

The powerful feature of loading another user's workflow for learning and iterating.

Details on installing custom nodes using the Comfy UI manager.

Examples of advanced setups like in-painting and Laura loader found on Comfy UI's GitHub.

A quick guide to getting started with Comfy UI and its potential for creating fantastic images.