SDXL Lightning is SUPER FAST! Only 2 Steps to Render!

Olivio Sarikas
21 Feb 202406:24

TLDRThe video presents SDXL Lightning, a revolutionary tool that can render SDXL images in just two steps, making it incredibly fast. The presenter shares a basic workflow for using SDXL Lightning, while also mentioning that Patreon supporters have access to an enhanced workflow with additional features like ControlNet, IPA Face Detailer, and an Upscaler. The video guides viewers on how to download and set up the workflow, as well as the necessary Lura files. It emphasizes the effectiveness of the four-step Lura model for quality results. The presenter also demonstrates how to use the Ultimate SD Upscale for further enhancing the image details without altering the content. The video concludes with a teaser for a more detailed workflow to be released for Patreon supporters, encouraging viewers to stay tuned for more information.

Takeaways

  • 🌟 SDXL Lightning is a tool that can render SDXL images in just two steps, offering a fast and efficient way to create high-quality images.
  • 🎉 There's a basic workflow available for everyone, but Patreon supporters get an enhanced workflow with additional features like ControlNet, IPA Face Detailer, and an Upscaler.
  • 📄 To use the tool, you need to download a workflow file from the Hugging Face page and save it as a .json file on your computer.
  • 📁 You also need to download the Lora files from the SDXL Lightning page, which are small in size and come in different versions (two-step, four-step, eight-step).
  • 📂 The Lora files should be saved in the 'models' folder within your Automatic1111 directory, as they are not visible to Automatic1111 but can be recognized by ComfyUI.
  • 🔄 The four-step Lora version is recommended for a balance between quality and speed.
  • 🖼️ The process works best with images that are 1024x1024 in size and where the subject is prominently featured.
  • 🔍 For better results, you can upscale the images using the Ultimate SD upscaler or a similar method without significantly altering the content.
  • 🚀 The Ultimate SD upscaler can use the same settings as the SDXL Lightning for upscaling, utilizing a four-step process with a CFG scale of 1 and Uler sampler.
  • ⏱️ The upscaled image, a detailed 2048x2048 SDXL image, can be rendered in just 20 seconds on a 3080ti, showcasing the tool's speed.
  • 🔧 Patron supporters will receive a more detailed workflow guide, enhancing their ability to use the tool effectively.
  • 📺 The video provides a step-by-step guide on how to set up and use SDXL Lightning, making it accessible for users to achieve impressive results.

Q & A

  • What is the SDXL Lightning method?

    -SDXL Lightning is a method that can render SDXL images in only two steps, providing a fast way to get high-quality images.

  • What is included in the basic workflow?

    -The basic workflow includes steps to download and save a JSON file, and to download Lura files for use in the process.

  • What are the benefits of being a Patron supporter?

    -Patron supporters receive an enhanced workflow with additional features such as ControlNet, IPA Face Detailer, and an Upscaler, along with a video explaining these features.

  • How do you download the workflow file?

    -You can download the workflow file by visiting the Hugging Face page, clicking on the workflow, selecting 'Raw', and then saving the file with a .json extension to your desired location on your hard drive.

  • What is the role of Lura files in the process?

    -Lura files are used in the SDXL Lightning process to provide the necessary model data for image rendering. They are small in size and can be downloaded from the SDXL Lightning page.

  • Why is the four-step Lura file recommended?

    -The four-step Lura file is recommended because it provides a good balance between quality and speed, offering better quality than the two-step version.

  • What is the significance of the 'ultimate upscaler' mentioned in the script?

    -The 'ultimate upscaler' is a tool used to upscale images without significantly altering their content, and it works well with the SDXL Lightning method to enhance image details.

  • What is the recommended image size for the SDXL Lightning process?

    -The recommended image size for the SDXL Lightning process is 1024 by 1024 pixels, as it works best with the current settings.

  • How does the ultimate SD upscaler contribute to the final image quality?

    -The ultimate SD upscaler contributes to the final image quality by using the same Lura model for upscaling, allowing for a detailed 2048x2048 SDXL image that is rendered quickly.

  • What is the expected time for rendering a 2048x2048 image on a 3080ti?

    -The expected time for rendering a 2048x2048 image on a 3080ti using the SDXL Lightning method is 20 seconds.

  • What additional information will be provided to Patreon supporters?

    -Patreon supporters will receive a more detailed workflow guide, which will be uploaded the day after the video presentation.

  • What is the main advantage of using SDXL Lightning for image rendering?

    -The main advantage of using SDXL Lightning is the speed of image rendering, with the ability to produce images very quickly while still achieving good quality.

Outlines

00:00

🚀 Introduction to SDXL Lightning and Workflow Overview

The speaker begins by greeting the audience and introducing SDXL Lightning, a tool for rendering SDXL images. They mention a basic workflow and a more advanced one available to Patron supporters. The advanced workflow includes additional features like ControlNet, IPA Face Detailer, and an Upscale. The speaker then guides the audience through downloading and using a workflow file from the Hugging Face page, saving it as a JSON file on their hard drive, and how to access the Lura files necessary for the process. They explain the process of setting up the workflow in Comfy UI, including the addition of an Ultimate Upscale and the use of a specific checkpoint and Lura model. The speaker emphasizes the current limitations regarding image size and step count but highlights the speed at which images can be created. They also discuss the suitability of the method for images with a prominent subject and the potential for future improvements with refined models.

05:00

📈 Upscaling SDXL Images with Ultimate SD Upscale

The speaker demonstrates how to upscale SDXL images using the Ultimate SD Upscale method. They explain that the same settings used for the initial rendering can be applied to the upscaler model, specifically mentioning the use of four steps, CFG scale, and the Uler sampler with an SGM uniform schedule. The speaker shows an example of an upscaled image, noting the impressive detail and speed of rendering on a 3080ti graphics card. They encourage the audience to experiment with the Lura settings and express excitement about sharing a more comprehensive workflow with Patreon supporters. The video concludes with a call to action for likes and a farewell, followed by an end screen with suggestions for further viewing.

Mindmap

Keywords

💡SDXL Lightning

SDXL Lightning is a software or tool mentioned in the video that is capable of rendering SDXL images. It is described as being 'SUPER FAST' and is the central focus of the video, with the host demonstrating its capabilities and workflow.

💡Workflow

A workflow in the context of this video refers to the sequence of steps or processes that one must follow to use the SDXL Lightning tool effectively. The video discusses a basic workflow and mentions a more advanced one available to Patron supporters.

💡ControlNet

ControlNet is a term used in the video to describe a feature or component within the advanced workflow for SDXL Lightning. It is part of the enhanced capabilities offered to Patron supporters, suggesting it provides some form of control or guidance for the image rendering process.

💡IPA Face Detailer

The IPA Face Detailer is another component mentioned as part of the advanced workflow. It implies a tool or feature specifically designed to enhance or detail faces in the images rendered by SDXL Lightning.

💡Upscaler

An upscaler in this context is a tool used to increase the resolution or quality of an image. The video highlights the use of an 'ultimate upscaler' which works in conjunction with SDXL Lightning to improve the detail and quality of the rendered images.

💡Lura files

Lura files are referenced as necessary components for the SDXL Lightning tool to function. They are described as being small in size and are used in different versions (two-step, four-step, eight-step) to affect the rendering process.

💡Automatic 1111

Automatic 1111 seems to be a software or platform where the Lura files are made visible and usable. It is mentioned in the context of file compatibility and the process of making the Lura files accessible for the rendering tool.

💡Checkpoint

A checkpoint in the video is a reference to a specific version or state of a model within the rendering process. It is used in conjunction with the Lura model loader and is an important part of the workflow.

💡CFG count

CFG count likely refers to a configuration setting or a parameter related to the control of the image rendering process. It is mentioned in the context of affecting the sharpness and detail of the final image.

💡null

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💡Scheduler

The scheduler, specifically 'sgm uniform' in the video, is a part of the settings within the rendering process that influences how the image is sampled and processed. It is crucial for achieving the desired output format.

💡VAE Decoder

A VAE (Variational Autoencoder) Decoder is a component in the rendering process that decodes or reconstructs the image from a latent state. It is part of the final steps in creating the rendered image.

💡Ultimate SD Upscale

Ultimate SD Upscale is a method or tool used to upscale images without significantly altering their content. It is presented as an effective way to enhance the detail of SDXL images rendered by the Lightning tool.

Highlights

SDXL Lightning is introduced as a super-fast method to render SDXL images in just two steps.

A basic workflow is included, but Patreon supporters get an enhanced workflow with additional features.

The process can be simplified to one step, but currently operates on two steps due to limitations.

The Hugging Face page is mentioned as a starting point for using the SDXL Lightning workflow.

Downloading the workflow involves saving a .json file from the Raw version of the file.

Lura files are required for the workflow and can be downloaded in various step counts.

Lura files are small in size, making them easy to manage and download.

The four-step Lura file is recommended for better quality.

The Lura file needs to be placed in the correct folder for the workflow to function.

The future may bring compatibility with Automatic1111 for .pth files.

An ultimate upscaler is added to the workflow for improved image quality.

The use of the ultimate upscaler with the same settings as the SDXL Lightning workflow is a surprising revelation.

The upscaling process maintains the content of the image without significant alteration.

The SDXL Lightning workflow is best suited for images with a large subject in the frame.

The workflow is expected to improve with future model refinements.

A detailed 2048x2048 SDXL image can be rendered in 20 seconds on a 3080ti graphics card.

The video promises a more comprehensive workflow upload for Patreon supporters in the near future.

The presenter encourages viewers to experiment with the workflow and provides a call to action for likes.

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