SDXL Lightning: Achieve Flash Speed Image Rendering in Just 2 Steps (ComfyUI)

Aiconomist
21 Feb 202404:03

TLDRBip Dance has introduced SDXL Lightning, a tool exclusive to Comfy UI that significantly accelerates image generation. It can produce 10 24x1024 images using an SDXL model with just two sampling steps, making it faster than turbo models and adept at rendering detailed close-ups. To use it, download the Lora files (two-step, four-step, and eight-step) and place them in the Comfy UI's Lora folder. Then, load a default workflow, select an SDXL model, add a Lora loader node, and choose the two-step Lora. Set the K sampler to two steps and the CFG to use the ULER sampler with the SGM uniform scheduler. The tool is demonstrated using a prompt of a Moroccan woman in a robe, and the image is generated almost instantly on an RTX 360. For further enhancement, Ultimate SD can upscale the image using the same sampler settings, and Cre.ia can be used for additional detail improvement. The tutorial concludes with a teaser for the next video on monetizing AI to create product images for e-commerce.

Takeaways

  • 🚀 **SDXL Lightning Release**: Bip Dance has introduced SDXL Lightning, a tool exclusive to Comfy UI that accelerates image generation.
  • 🔍 **High-Resolution Images**: The tool can create 10 24x1024 images, focusing on detailed close-up shots.
  • 🔁 **Efficient Sampling**: Utilizes an SDXL model with only two sampling steps, making it faster than turbo models.
  • 📂 **Download and Setup**: Users need to download different versions of Luras (two-step, four-step, and eight-step) and place them in the Comfy UI's Lora folder.
  • 📈 **Workflow Customization**: Start with a default workflow, select an SDXL model, and add a Lora loader node for the two-step Lora.
  • ⚙️ **K Sampler Settings**: Maintain two steps in the K sampler settings and use the ULER sampler with the SGM uniform scheduler.
  • 🖼️ **Instant Image Rendering**: The image comes to life almost instantly upon hitting 'Q', showcasing the tool's speed.
  • 📱 **Performance on RTX 360**: The demonstration runs on an RTX 360, highlighting the fast performance of the tool.
  • 📚 **Image Enhancement**: Ultimate SD can upscale images quickly using the same case sampler settings for even more stunning results.
  • 🔍 **Further Refinement**: There's potential for a refiner in the future to enhance image quality further.
  • 🌟 **Alternative Enhancement**: Try Cre.ia for a free and significant boost in image detail, using a positive prompt for the best results.
  • ⏰ **Quick Results**: The entire process, from rendering to enhancement, happens in just a few seconds.

Q & A

  • What is SDXL Lightning?

    -SDXL Lightning is a tool released by bip dance that helps generate images much faster. It is currently exclusive to Comfy UI and can create 10 24x1024 images using an SDXL model with just two sampling steps.

  • How does SDXL Lightning differ from turbo models?

    -SDXL Lightning is quicker than turbo models and excels at producing detailed close-up shots due to its use of an SDXL model with only two sampling steps.

  • What are the steps to get started with SDXL Lightning in Comfy UI?

    -To get started, you need to download different versions of Luras (two-step, four-step, and eight-step files), place them into your Lora folder for Comfy UI, and then open your web UI to load a default workflow and select an SDXL model.

  • What settings should be used in the K sampler for SDXL Lightning?

    -In the K sampler settings, you should stick with two steps and use the ULER sampler with the SGM (Sub-Grid Multiplier) uniform scheduler.

  • How does the presenter demonstrate the speed of SDXL Lightning?

    -The presenter demonstrates the speed by running the process on an RTX 360 and noting that the image comes to life almost instantly.

  • What is Ultimate SD and how is it used to improve the image?

    -Ultimate SD is a tool that upscales the image quickly by using the same case sampler settings, making the final result even more stunning. It can be used to further improve the image generated by SDXL Lightning.

  • What is the alternative enhancement method mentioned in the script?

    -The alternative enhancement method mentioned is using Cre.ia, which is a free service that can significantly boost an image's detail. Users need to create an account, select the enhancer, upload their image, adjust the settings, and use a positive prompt.

  • What is the purpose of the refiner mentioned in the script?

    -The refiner is suggested for future use to enhance image quality even further, indicating that while the SDXL Lightning model does a great job, there is still room for improvement.

  • What is the next topic the presenter plans to cover in the following video?

    -In the next video, the presenter plans to show how to make money using AI by creating product images for e-commerce businesses.

  • What is the recommended action for viewers who are interested in the content?

    -The recommended action for viewers is to like and subscribe to stay tuned for the next video and future content.

  • What is the significance of the two-step, four-step, and eight-step files in the context of SDXL Lightning?

    -These files represent different versions of Luras, which are necessary for the SDXL Lightning tool to function in Comfy UI. They likely correspond to different levels of detail and processing speed.

  • How does the script suggest enhancing the generated image after using SDXL Lightning?

    -The script suggests using Ultimate SD for upscaling the image and refining it, and also mentions using Cre.ia for an alternative enhancement to boost the image's detail.

Outlines

00:00

🚀 Introducing SDXL Lightning for Comfy UI

Bip Dance has introduced a new feature, SDXL Lightning, for Comfy UI, which allows users to generate images at a high resolution of 1024x1024 very quickly. This feature uses an SDXL model with just two sampling steps, making it faster than turbo models. Users need to download various 'lura' versions, namely two-step, four-step, and eight-step, and place them into their Comfy UI folder. The process involves loading a default workflow, selecting an SDXL model, and using a Laura loader node with a two-step Lura. In this tutorial, settings like CFG, uler sampler, and the SGM uniform scheduler are applied. The demonstration concludes with using Ultimate SD to upscale the image, significantly improving the final image quality. An alternative enhancement option using Cre AI is also suggested for even more detailed image refinement.

Mindmap

Keywords

💡SDXL Lightning

SDXL Lightning is a tool developed by bip dance that is designed to accelerate the image rendering process. It is currently exclusive to Comfy UI and is capable of generating a high number of images quickly. In the video, it is presented as a solution for creating images faster with just two sampling steps, which is a significant improvement over traditional turbo models in terms of speed and detail for close-up shots.

💡Comfy UI

Comfy UI is the user interface where the SDXL Lightning tool is integrated and used. It is the platform through which users can access and utilize the features of SDXL Lightning to generate images. The script mentions downloading different versions of Luras (the models used by the tool) and placing them into the Comfy UI's folder to get started.

💡SDXL Model

An SDXL Model refers to the specific model used by the SDXL Lightning tool to generate images. The script discusses selecting an SDXL model that suits the project, indicating that there are different models available for different types of image rendering tasks.

💡Two-Step Sampling

Two-Step Sampling is a method used by the SDXL Lightning tool that involves only two steps in the sampling process to generate images. This method is highlighted as being quicker than traditional turbo models and is particularly effective for producing detailed close-up images, as demonstrated in the video.

💡Luras

Luras are the different versions of models that can be used with the SDXL Lightning tool. The script mentions downloading three types of Luras: two-step, four-step, and eight-step files, which are then placed into the Comfy UI's Laura folder. These models likely represent variations in the complexity and detail of the images they can produce.

💡K Sampler Settings

K Sampler Settings refer to the configuration options within the SDXL Lightning tool that determine the number of steps used in the sampling process. In the context of the video, sticking with two steps is recommended for quick image rendering.

💡Uler Sampler

The Uler Sampler is a specific type of sampler mentioned in the script that is used in conjunction with the SDXL Lightning tool. It is selected in the K Sampler settings to further refine the image rendering process.

💡SGM Uniform Scheduler

The SGM Uniform Scheduler is a scheduling algorithm used within the SDXL Lightning tool to manage the sampling process. It is selected in the script to optimize the rendering of images.

💡Ultimate SD

Ultimate SD is a feature or tool mentioned in the video that is used to upscale images quickly. It works by using the same case sampler settings as the SDXL Lightning tool, enhancing the final image quality. The script demonstrates its use to improve the detail and clarity of the rendered images.

💡Image Upscaling

Image Upscaling is the process of increasing the resolution of an image while maintaining or improving its quality. In the context of the video, Ultimate SD is used to upscale images generated by the SDXL Lightning tool, resulting in more stunning final images.

💡Refiner

A Refiner, in the context of the video, refers to a future enhancement or tool that could be developed to further improve the quality of images generated by the SDXL Lightning tool. It suggests that while the current model does a great job, there is potential for even better results with additional refinement.

💡Cre.ia

Cre.ia is an alternative enhancement tool mentioned in the video that can significantly boost the detail of images. It is described as a free service that requires creating an account, selecting the enhancer, uploading the image, and adjusting settings. The tool is used to further improve the quality of images generated by the SDXL Lightning tool.

Highlights

Bip Dance has released SDXL Lightning, a tool exclusive to Comfy UI that accelerates image generation.

SDXL Lightning can create 10 24x1024 images, showcasing its high-speed capabilities.

The tool uses an SDXL model with just two sampling steps, making it faster than turbo models.

SDXL Lightning excels at producing detailed close-up shots.

To get started, download different versions of Luras (two-step, four-step, and eight-step) and place them into your Comfy UI folder.

Open your web UI to begin using SDXL Lightning with a default workflow.

Select an SDXL model that suits your project and add a Luras loader node.

Choose the two-step Luras for faster image rendering.

In the K sampler settings, use two steps and the ULER sampler with the SGM uniform scheduler.

A demonstration using the prompt of a Moroccan woman wearing a robe is shown, with image rendering almost instantly.

The process is demonstrated on an RTX 360, highlighting the speed of image generation.

Ultimate SD is used to upscale the image quickly, further enhancing the final result.

The upscaled image using Ultimate SD and refined image quality is showcased.

There's potential for a refiner in the future to enhance image quality even further.

Crea.ia is suggested as an alternative enhancement tool that can significantly boost image detail.

To use Crea.ia, create an account, select the enhancer, upload your image, adjust settings, and use a positive prompt.

The tutorial concludes with a teaser for the next video on creating product images for e-commerce using AI.

The video encourages viewers to like and subscribe for more content.