ComfyUI Relighting ic-light workflow #comfyui #iclight #workflow

PixelEasel
12 May 202405:16

TLDRIn this video, we explore ComfyUI's relighting tool, which offers a unique way to adjust lighting on a specific object while fine-tuning colors and shadows. The workflow is credited to Lias, and a demo is provided for hands-on experience. The process involves loading an image, creating a mask, and adjusting proportions for better results. The mask's position significantly impacts the lighting effect, and the workflow can be customized for more control. The video also discusses the use of an IP adapter to enhance the atmosphere and the importance of the blur radius in the final output. By the end, viewers learn how to achieve a harmonious blend of character and background lighting, adding a new level of control to their creative process.

Takeaways

  • 🎨 **ComfyUI Relighting Tool Introduction**: The video introduces a new tool for adjusting lighting on objects, affecting colors and shadows, with the ability to consider the background.
  • 📚 **Credit and Resources**: Credit is given to Lias for the tool, with a mention of Kaji for making it available on Comfy. Links to the repo and Comfy manager are provided for downloading necessary nodes and models.
  • 🔍 **Workflow Overview**: The video demonstrates how to use the tool with a workflow from the Kijiji example, including how to load images and adjust settings for better results.
  • 🖼️ **Image and Mask Creation**: A mask is created for the object, which plays a crucial role in the lighting process. The video shows how to adjust the mask and its impact on the final image.
  • 🔄 **Proportion and Quality Adjustments**: The importance of keeping proportions correct and the impact of image quality on the final result are discussed, with tips on how to improve them.
  • 🌄 **Background Image Considerations**: The video explores the use of a background image and its effect on the lighting, suggesting that sometimes working without a background can yield better results.
  • 🎭 **Mask Manipulation**: The presenter manipulates the mask to change the direction of the lighting and demonstrates the effect of the mask's position on the final image.
  • 🖌️ **Drawing on the Image**: A desire to draw directly on the image for mask creation is expressed, aiming to provide more freedom and comfort in the process.
  • 🛠️ **Workflow Customization**: The video shows how to customize the workflow for better mask creation, including resizing and connecting nodes for optimal results.
  • 🤖 **IP Adapter and Lighting Effects**: The use of an IP adapter is discussed to adjust the lighting and create a more harmonious image, with tips on how to balance its effect with the desired outcome.
  • 🌗 **Background and Transparency**: The presenter addresses issues with the transition between the object and the background, suggesting changes to transparency settings for a smoother result.
  • ✨ **IC Light Conditioning**: The video concludes with a discussion on IC light conditioning, which allows for further control over the lighting multiplier and contrast of the final image.

Q & A

  • What is the main purpose of the tool discussed in the video?

    -The main purpose of the tool is to allow users to change the lighting on a certain object while adjusting colors and shadows, with the ability to refer to the background and the project.

  • Who is credited with the development of this tool?

    -The credit for the development of this tool goes to Lias.

  • How can viewers access the demo and the repository mentioned in the video?

    -The presenter will leave a link to the demo and the repository in the description of the video.

  • What is the simplest way to install the necessary nodes for this tool?

    -The simplest way to install the necessary nodes is to download them from the Comfy Manager and load the workflows attached to the examples.

  • How can the models be obtained for use with the tool?

    -The models can be found in the Comfy Manager and can be downloaded manually from a specific page, then placed under the 'unet' folder in the 'models' folder.

  • What is the role of the red node in the workflow?

    -The red node is likely from another package and is responsible for disconnecting an object from the background.

  • How does the presenter adjust the proportions of the image?

    -The presenter changes the 'keep proportion' to true and the amount of pixels to 768 lengthwise and widthwise, then presses Q to apply the changes.

  • Why does the presenter decide to work without a background image?

    -The presenter finds that the tool works better without adding a background image, especially when focusing on the character.

  • What is the purpose of the mask created in the process?

    -The mask plays an important role in the process by affecting the lighting and making the image feel more harmonious.

  • How does the presenter propose to optimize the mask creation process?

    -The presenter suggests using a 'load image' node to draw the mask on the image, allowing for more freedom and comfort in the process.

  • What is the effect of the blur radius on the final image?

    -The blur radius affects the lighting and the overall look of the image, with different settings resulting in different levels of softness or sharpness in the lighting.

  • How does the presenter address the issue of the picture being too dark?

    -The presenter connects an IP adapter and adjusts the weights to moderate the effect, aiming to introduce more atmosphere into the picture.

Outlines

00:00

🧰 Exploring a New Lighting and Color Adjustment Tool

This video introduces a powerful tool developed by Lias, which enhances images by adjusting lighting, colors, and shadows, integrating the background seamlessly. The demo provided shows how to utilize this tool with a repository link included for further exploration. Thanks to Kaji's contribution, the tool is accessible via comfy, where users can download necessary nodes. The video demonstrates a step-by-step guide on how to set up and modify images using this tool, including changing backgrounds, adjusting proportions, and optimizing image quality with various nodes and models.

05:01

👋 Conclusion and Engagement Encouragement

The video wraps up by encouraging viewers to engage with future lessons. The speaker invites the audience to subscribe to the channel, ask questions, and like the video if they found it helpful. The emphasis is on enjoyment and interactive learning in upcoming sessions.

Mindmap

Keywords

💡ComfyUI Relighting

ComfyUI Relighting refers to a digital tool designed for modifying the lighting of visual elements within a digital environment. In the context of the video, this tool is central to adjusting the light on objects, which can include changing their brightness, contrast, and color dynamics to better integrate with their backgrounds. This process enhances the overall visual appeal and can be crucial for tasks such as digital photography editing or graphic design.

💡IC-light

IC-light appears to be a feature or component within the ComfyUI relighting tool that specifically handles image lighting adjustments. It enables the user to selectively apply lighting effects, which is demonstrated in the video by altering the light direction and intensity. This feature is significant for achieving realistic lighting effects in digital images, particularly when integrating elements from different sources.

💡workflow

In the context of the video, 'workflow' refers to the process or sequence of operations that are followed using the ComfyUI tools to achieve the desired lighting effects on images. The workflow includes loading images, adjusting settings, and applying various nodes to manipulate the image properties effectively. It is crucial for streamlining tasks and ensuring that the changes are applied efficiently and correctly.

💡node

A 'node' in digital editing software typically represents a specific function or operation that can be applied to objects within a project. In the video, nodes are used to alter images, such as changing backgrounds or adjusting lighting. The user manipulates these nodes within the workflow to affect the image, demonstrating how nodes play a critical role in the customization and enhancement of digital content.

💡mask

A 'mask' in image processing is used to hide certain parts of an image so that operations can be applied only to the visible areas. In the script, the mask plays a key role when adjusting the lighting and proportions of images, allowing the user to focus effects on specific parts of an image. This helps in achieving precise effects like highlighting or shadowing without affecting the entire image.

💡latent

In the context of the video, 'latent' likely refers to hidden or underlying features within an image that can be manipulated to change its appearance. Detaching the latent aspects of the background allows the user to focus solely on enhancing the main subject of the image. This separation is crucial for applying specific visual effects more accurately.

💡resize

Resizing images is a fundamental task in digital editing, adjusting the dimensions of an image for various purposes. In the video, the resize function is used to maintain the proportionality of the image after adjustments are made, ensuring that the image remains visually balanced and appealing. This is essential when preparing images for different display formats or for integration with other visual elements.

💡IP adapter

The IP adapter in the video seems to be a tool or function that adjusts the integration of images with their backgrounds, likely by modifying how image properties, such as lighting or color, blend with surrounding elements. By adjusting the 'weights' of the IP adapter, the user can fine-tune how pronounced these changes are, which is crucial for achieving a natural look in composited images.

💡blur radius

The 'blur radius' determines the extent to which an effect, like blurring, extends around its central point in an image. In the video, altering the blur radius impacts how soft or diffuse lighting appears, which can be used to simulate conditions like depth of field or focus. Adjusting this parameter helps in creating a more realistic interaction between light and the objects in the image.

💡multiplier

In digital editing, a 'multiplier' adjusts the intensity of an effect applied to an image. The video mentions using a multiplier to increase the contrast, which effectively enhances the distinction between light and dark areas, making the image elements more defined. This is particularly useful in scenarios where dramatic lighting effects are desired to highlight specific features of an image.

Highlights

Introduction to a new tool for changing lighting on objects with adjustments for colors and shadows.

Credit is given to Lias for the development and to Kaji for making the project available on Comfy.

The tool allows for experimentation with lighting and understanding its effects through a demo.

Necessary nodes can be downloaded from the Comfy Manager, and workflows can be installed from examples.

Models can be found and downloaded manually for use in the Unet folder under the models folder.

A red node is used to disconnect an object from the background, replaced with 'remove background' in this case.

Loading an image and adjusting the model and prompt to achieve the desired underwater scene.

A mask is created, which plays an important role in the lighting adjustment process.

Proportions are corrected by adjusting the 'keep proportion' to true and the pixel amount.

The tool works better without adding a background image for some cases.

The mask's position significantly affects the lighting and overall image harmony.

Optimizing the mask creation process by allowing direct drawing on the image for more control.

The lighting changes depending on the mask's position and blur radius adjustments.

The prompt and description of lighting are significant in the final image result.

Adjusting the IP adapter weights and 'start at' and 'end at' parameters to moderate effects.

Improving the transition between the subject and background by adjusting transparency settings.

IC light conditioning allows for playing with the multiplier, similar to raising contrast.

The final result showcases the tool's ability to add control to the creative process.

The tool is deemed very interesting and adds value to the creative process.

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