How To Use FLUX | ComfyUI Tutorial
TLDRThis ComfyUI tutorial introduces FLUX, an advanced image generation model by Black Forest Labs, which excels in text rendering and realism. The video guides viewers on setting up FLUX locally, including downloading the model, encoders, and VAE files, and integrating them with ComfyUI. It demonstrates generating realistic images, such as an elderly woman in a garden, and highlights FLUX's ability to accurately render text and human hands. The tutorial also suggests using Topaz Photo AI for image upscaling and offers tips for optimizing the generation process.
Takeaways
- 🌟 FLUX is a new image generation model developed by Black Forest Labs, known for its quality and realism.
- 🚀 FLUX stands out for its ability to render text and generate human hands effectively.
- 💻 To use FLUX, you need to install ComfyUI if you haven't already, and there's a separate tutorial for that.
- 📁 There are two main versions of the FLUX model: the dev version and the Schnell version, with the latter reportedly faster but potentially sacrificing quality.
- 🔍 You'll need to download specific encoders and a VAE model to work with FLUX, with different versions available for dev and Schnell.
- 📂 Place all downloaded files in the correct folders within the ComfyUI models directory.
- 🛠️ Update ComfyUI to the latest version and download the simple workflow for FLUX from OpenArt.
- 📝 Write a prompt to describe the image you want to generate; there's a video on crafting good prompts if needed.
- 🎨 Adjust settings like width, height, seed, sampler, scheduler, steps, and select the correct VAE model for image generation.
- 🖼️ FLUX can generate high-quality images, but it's not the fastest, and lower-end GPUs might struggle with the process.
- 🔧 For higher quality images without extending the generation time, use a third-party image upscaler like Topaz Photo AI.
- 📚 The video also demonstrates FLUX's capabilities with text rendering and generating images of hands, showcasing its accuracy and realism.
Q & A
What is FLUX and who developed it?
-FLUX is an incredible new model for image generation developed by Black Forest Labs, the same team behind Stable Diffusion. It is considered as good, if not better, than other leading image generators in terms of quality and realism.
What sets FLUX apart from other image generators?
-FLUX stands out due to its amazing ability to render text and its proficiency in generating human hands, which makes it unique compared to other models.
What is ComfyUI and why is it needed for using FLUX?
-ComfyUI is a user interface that is necessary for setting up and running the FLUX model on your computer. If you haven't used it before, you'll need to install it.
Which versions of the FLUX model are suitable for local use?
-There are two main versions of the FLUX model suitable for local use: the dev version and the Schnell version. The Schnell version is reported to run faster, potentially prioritizing speed over quality.
What are the additional files needed to use FLUX with ComfyUI?
-Besides the FLUX model, you also need to download three different encoders and a VAE model. There are two versions of the VAE model, one for each of the FLUX versions (dev and Schnell).
Where should the downloaded files be placed for FLUX to work with ComfyUI?
-The downloaded files should be placed in specific folders within the ComfyUI models directory. The model should go in the 'unet' folder, the encoders in the 'clip' folder, and the VAE model in the 'VA' folder.
How can one obtain the simple workflow for FLUX?
-The simple workflow for FLUX can be downloaded from a page on OpenArt, which is linked in the video description. After downloading, the workflow file should be dragged and dropped onto the ComfyUI interface.
What is the purpose of the prompt in generating an image with FLUX?
-The prompt is a description that tells FLUX what image you want to generate. It's crucial for guiding the model to create the desired output.
How does the seed setting affect the image generation process in FLUX?
-The seed setting, when set to randomize, ensures that each time you generate an image, it will be different, allowing for variety in the output.
What is the recommended approach if you encounter performance issues with FLUX on a low-end GPU?
-If you have a low-end GPU with limited VRAM, you can try using the Schnell version of FLUX or an alternative encoder like the FBA encoder. Alternatively, you can use cloud-based solutions like Think Diffusion to run ComfyUI online.
How can you enhance the quality of images generated by FLUX?
-To enhance the quality of images without prolonging the generation process, you can use a third-party image upscaler like Topaz Photo AI, which sharpens and upscales the image, reintroducing details.
Outlines
🌟 Setting Up Flux Model with Comi
This paragraph introduces the Flux model, developed by Black Forest Labs, which is an advanced image generator that rivals other leading models like M journey and Dolly in terms of quality and realism. The script focuses on Flux's unique ability to render text and human hands. The tutorial guides viewers on how to set up Flux on their computer using Comi, a platform that requires installation for first-time users. The process involves downloading the Flux model, different encoders, and a VAE model, placing them in specific folders within the Comi interface. The paragraph also mentions updating Comi to the latest version and loading the correct Flux model and workflow. It concludes with instructions on setting parameters for image generation, such as prompt, width, height, seed, sampler, scheduler, steps, and selecting the appropriate VAE model.
🎨 Exploring Flux's Capabilities and Post-Processing
The second paragraph delves into the practical use of the Flux model, highlighting its ability to generate realistic images with randomized seeds, which ensures variability in output. The script demonstrates Flux's performance with text rendering and character generation, showcasing its precision and alignment with the given prompts. It also touches on the model's proficiency in generating human hands, which is confirmed through successful attempts. To enhance image quality without prolonging the generation process on Comi, the video suggests using a third-party image upscaler called Topaz Photo AI, which effectively sharpens and upscales images, reintroducing details and improving the overall visual appeal. The paragraph concludes with an invitation for viewers to ask questions in the comments and a sign-off that encourages creativity and anticipation for the next video.
Mindmap
Keywords
💡FLUX
💡ComfyUI
💡Stable Diffusion
💡DEV version
💡Schnell version
💡Encoders
💡Vae model
💡Workflow
💡Prompt
💡Scheduler
💡Steps
💡Upscale
Highlights
FLUX is a new image model developed by Black Forest Labs, creators of Stable Diffusion.
FLUX is comparable or superior to other leading image generators like M journey and Dolly in terms of quality and realism.
FLUX stands out for its exceptional ability to render text.
The tutorial demonstrates setting up FLUX on a computer using ComfyUI.
ComfyUI must be installed on the computer to use FLUX.
There are two main versions of the FLUX model: the Dev version and the Schnell version.
The Schnell version of FLUX is reported to prioritize speed over quality.
Instructions on downloading and placing the FLUX model under ComfyUI models are provided.
Three different encoders are required for FLUX, with download links provided.
A VAE model is necessary for FLUX, with two versions available depending on the chosen FLUX model.
The tutorial includes steps to update ComfyUI and load the FLUX workflow.
Choosing the correct FLUX model and encoder is crucial for the image generation process.
Writing effective prompts is essential for generating desired images with FLUX.
FLUX can generate realistic images with adjustable width, height, and seed settings.
Experimenting with different samplers and schedulers can affect the FLUX image generation outcome.
The tutorial discusses potential issues with lower-end GPUs when using FLUX.
Alternative solutions like cloud-based platforms are suggested for users with limited hardware.
FLUX produces high-quality images with impressive details and realism.
FLUX is capable of accurately rendering text and matching it to the prompt.
Using third-party tools like Topaz Photo AI can enhance the quality of FLUX-generated images.