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

Olivio Sarikas
21 Feb 202406:24

TLDRIn this video, the presenter introduces SDXL Lightning, a groundbreaking tool that can render SDXL images with remarkable speed, requiring only two steps. The video outlines a basic workflow for using SDXL Lightning, with an option for Patreon supporters to access an advanced workflow featuring additional tools like ControlNet, IPA Face Detailer, and an Upscaler. The presenter demonstrates how to download and use the workflow, as well as the necessary Lura files for different rendering steps. They highlight that the four-step Lura model offers better quality and discuss the compatibility with Automatic1111. The video also showcases the use of the Ultimate SD Upscale for enhancing image details without altering the content. The presenter concludes by encouraging viewers to experiment with the tool and promises to share a more detailed workflow for Patreon supporters in the future.

Takeaways

  • 🌟 SDXL Lightning is a tool that can render SDXL images incredibly fast, in just two steps.
  • 🎥 The basic workflow is included, but Patreon supporters get an enhanced version with additional features.
  • 📄 To use SDXL Lightning, download the workflow file and save it as a .json file on your hard drive.
  • 📁 You also need to download the Lura files from the SDXL Lightning page and place them in your designated folder.
  • 🔍 The Lura files are small in size, with options for two-step, four-step, and eight-step versions available.
  • 📈 The four-step Lura file is recommended for a balance between quality and speed.
  • 🚀 For the best results, use an image size of 1024 by 1024 pixels with the current setup.
  • 🔍 The process works best for images with a prominent subject, which will display enhanced details.
  • 📱 The future may bring improvements with more specialized models for this rendering process.
  • 🌐 Upscaling can be done using the Ultimate SD upscaler or a similar method to maintain the image content.
  • 🔧 The Ultimate SD upscaler can use the same settings as the SDXL Lightning for consistent results.
  • ⏱️ The demonstration resulted in a detailed 2048x2048 SDXL image rendered in just 20 seconds on a 3080ti.

Q & A

  • What is the name of the tool that can render SDXL images in only two steps?

    -The tool is called SDXL Lightning.

  • What is the basic workflow included for SDXL Lightning?

    -The basic workflow includes downloading the workflow file, saving it as a .json file on the hard drive, and then opening it in Comfy UI.

  • What does the term 'Lura files' refer to in the context of SDXL Lightning?

    -Lura files refer to the model files required for SDXL Lightning to function, which are small in size and can be downloaded from the SDXL Lightning page.

  • What is the recommended image size for the best results with SDXL Lightning?

    -The recommended image size is 1024 by 1024 pixels.

  • What is the difference between the two-step, four-step, and eight-step Lura files?

    -The difference lies in the quality and detail of the rendered image, with the four-step Lura file providing a better quality than the two-step, and the eight-step offering even more detail.

  • Why is the four-step Lura file preferred over the two-step or eight-step?

    -The four-step Lura file is preferred because it offers a good balance between quality and render time, providing better quality than the two-step without the increased render time of the eight-step.

  • What is the role of the 'ultimate upscaler' in the process?

    -The 'ultimate upscaler' is used to upscale the rendered image without significantly changing its content, resulting in a more detailed and higher resolution image.

  • What is the recommended upscaling method to use with SDXL Lightning?

    -The recommended upscaling method is the Ultimate SD upscale or a similar upscaling method that uses the same Lura model for upscaling.

  • What is the advantage of using the Ultimate SD upscaler with the same settings as SDXL Lightning?

    -Using the same settings allows the Ultimate SD upscaler to use the same Lura model for upscaling, which can result in a detailed and high-quality 2048x2048 SDXL image.

  • How long does it take to render a 2048x2048 SDXL image on a 3080ti using the described process?

    -It takes 20 seconds flat to render a 2048x2048 SDXL image on a 3080ti using the described process.

  • What additional content will be provided to Patreon supporters?

    -Patreon supporters will receive a more detailed workflow that includes control net, IPA face detailer, upscaler, and a video explaining all the features.

  • What is the significance of the 'CFG count' in the context of SDXL Lightning?

    -The 'CFG count' refers to the configuration settings that influence the detail and sharpness of the rendered image; a very low CFG count results in a faster render but less detail.

Outlines

00:00

🚀 Introduction to SDXL Lightning and Workflow

The speaker introduces the audience to SDXL Lightning, a tool that can render SDXL images in a quick two-step process. A basic workflow is provided for viewers, while Patreon supporters receive an enhanced version with additional features like ControlNet, IPA Face Detailer, and an Upscale. The process involves downloading a workflow file from the Hugging Face page, saving it as a JSON file, and using it with the Lora files available from the SDXL Lightning page. The speaker emphasizes the small file size of Lora files and their ease of use. The four-step Lora is mentioned as a good quality choice. The workflow is then opened in Comfy UI, and an Ultimate Upscaler is added for further image enhancement. The video concludes with a teaser for a more detailed workflow to be released the next day for Patreon supporters.

05:00

📈 Upscaling SDXL Images with Ultimate SD Upscale

The speaker demonstrates how to upscale SDXL images using the Ultimate SD Upscale method. They use the 4X upscale SP model with a CFG scale of 178,000. The surprising aspect is that the same settings used in the Ultimate SD Upscale can also be applied to the SDXL Lightning process, as they share the same Lora model. The speaker sets the upscale to two times and is amazed by the detailed 2048x2048 SDXL image that renders in just 20 seconds on a 3080ti. The video ends with a call to action for viewers to like the video, and a note that a more comprehensive workflow will be shared with Patreon supporters the following day.

Mindmap

Keywords

💡SDXL Lightning

SDXL Lightning is a method or tool mentioned in the video that is used to render SDXL images. It is characterized as being 'SUPER FAST' and is the central focus of the video's discussion. The video script details how it can render images in just two steps, which is a significant improvement in speed over traditional methods.

💡Workflow

A workflow in the context of this video refers to a sequence of steps or processes that are followed to complete a certain task. The video discusses a basic workflow for using SDXL Lightning and mentions that patrons receive an expanded workflow with additional features and controls.

💡Hugging Face

Hugging Face is mentioned as a page or platform where the viewer can see the capabilities of SDXL Lightning. It is implied to be a resource for accessing or learning more about the tool or method being discussed.

💡ControlNet

ControlNet is a term used in the video to refer to a feature or component within the advanced workflow provided to patrons. It is part of the enhanced capabilities that allow for more detailed and nuanced image rendering.

💡IPA Face Detailer

The IPA Face Detailer is another feature mentioned as part of the upgraded workflow for patrons. It suggests a tool or process that is used to add or enhance facial details in the rendered images.

💡Upscaler

An upscaler is a tool used to increase the resolution of an image. In the video, the presenter discusses using an upscaler, specifically the 'ultimate SD upscale,' to improve the quality of the rendered images without altering their content.

💡Lura Files

Lura files are referenced as essential components for the SDXL Lightning process. They are described as being small in size and are used in conjunction with the workflow to achieve the desired image rendering results.

💡Two-Step, Four-Step, Eight-Step

These terms refer to different levels or stages in the SDXL Lightning process. The 'two-step' version is the basic process, while the 'four-step' and 'eight-step' versions offer increased quality and detail in the rendered images.

💡CFG Count

CFG Count likely refers to a configuration setting or parameter within the SDXL Lightning tool that affects the image rendering. The video suggests that a low CFG count results in faster rendering but with less detail.

💡null

💡VAE Decoder

A VAE, or Variational Autoencoder, is a type of neural network used in deep learning. In the context of the video, the VAE Decoder is a part of the process that translates the latent image into a more detailed and higher-resolution output.

💡Ultimate SD Upscale

The Ultimate SD Upscale is a specific upscaling method mentioned in the video. It is used to enhance the resolution of the rendered images, creating a detailed 2048x2048 image quickly and efficiently.

Highlights

SDXL Lightning is a new method that can render SDXL images in just two steps.

The basic workflow is included, but Patron supporters get an enhanced version with additional features.

The process can be further simplified to one step, but currently, it requires two steps for functionality.

Downloading the workflow involves accessing a JSON file and saving it locally.

Lura files are required for the process and are available in various step counts for customization.

The four-step Lura file is noted for providing a balance between quality and speed.

The Lura file needs to be placed in a specific folder for the process to work correctly.

The future may bring compatibility with automatic 1111, but for now, it's placed in the Lura folder.

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

The use of the ultimate upscaler with the same settings as the initial process is a surprising and effective technique.

The process works best with images where the subject occupies a large portion of the frame.

The SDXL Lightning method is expected to improve with future model refinements.

Upscaling the image using the ultimate SD upscaler or similar methods retains the image content without significant alterations.

The upscaled image can achieve a high resolution of 2048x2048 in a short amount of time.

The video demonstrates how to achieve fast rendering times, even on powerful hardware like the 3080ti.

A more detailed workflow will be uploaded for Patreon supporters in the future.

The presenter encourages viewers to experiment with the Lura to achieve amazing and fun results.

The video concludes with a call to action for likes and an anticipation for future content.