NEW! How to change light with AI

Sebastian Kamph
13 May 202411:42

TLDRThe video introduces a groundbreaking AI model called 'I See Light' by Leo V, which has the ability to relight any image. The model can be manipulated to change the direction and type of light, such as left, right, top, or bottom light. It can also incorporate shadows and is not limited to static images; it can handle animations as well. The process involves using a software called Comfy UI, where users can download and install workflows to expand the options for lighting. The video demonstrates how to install the necessary nodes and models, including FC and FBC, to achieve different lighting effects. It also shows how to use shape masks to control the direction and intensity of the light. The AI model is not just overlaying light effects; it regenerates the image to create a more realistic and immersive experience. The video concludes by highlighting the potential of this technology for creative and professional use.

Takeaways

  • 🚀 Leo V has developed a model called 'I See Light' that can relight any image based on user preferences.
  • 🔄 The model is not limited to pre-selected options; it can expand with workflows created by Keyi, offering more lighting options.
  • 🌅 Users can input their own images and apply different lighting effects, such as sunset or spotlight, to those images.
  • 📂 The process involves installing missing custom nodes and models through a manager interface in the software.
  • 🔍 There are different models available like FC (foreground only), FBC (foreground and background), and FCON (offset noise variant).
  • ⚙️ The default relighting model is conditioned on text and foreground, while the FBC model also includes background in its considerations.
  • 📈 The FC and FBC models are recommended for most users, with the FBC used when a separate background is to be added.
  • 🎭 The model can generate a preview of how the lighting will affect the image, allowing for adjustments before final rendering.
  • 🖼️ The final output retains much of the initial image's integrity, with the lighting effect naturally integrated rather than overlaid.
  • 💡 The lighting can be manipulated using shape masks, allowing for control over the direction, size, and shape of the light source.
  • ✨ The technology also supports animation, enabling dynamic lighting effects that change over time in a sequence.
  • 🌟 The workflows are powerful and can transform regular images into stunning visuals with professional lighting effects.

Q & A

  • What is the main topic of the video?

    -The main topic of the video is about a new AI model that can relight any image, allowing users to control the direction and type of light in a photograph.

  • Who created the AI model discussed in the video?

    -The AI model discussed in the video was created by Leo V.

  • What are the different lighting options that can be applied to an image using the AI model?

    -The AI model allows for various lighting options such as left light, right light, top light, and bottom light. Additionally, users can apply different types of light like sunset, neon, and sci-fi light.

  • How does the AI model work with animations?

    -The AI model can be used with animations to create dynamic lighting effects where the light appears to move around based on the editor's adjustments.

  • What software is required to use the AI model for relighting images?

    -The software required to use the AI model for relighting images is comy, which can be installed using guides found on the creator's channel.

  • How does the AI model handle background images in the relighting process?

    -The AI model has a version that is conditioned on text, foreground, and background, allowing it to merge the foreground image with a background image along with a prompt to create a relit scene.

  • What are the different models available for relighting within the AI tool?

    -There are three models available: FC (default relighting model conditioned on text and foreground), FBC (relighting model conditioned with text, foreground, and background), and fcon (same as the default model but trained with offset noise).

  • How does the shape mask feature control the direction and type of light in an image?

    -The shape mask feature allows users to select different shapes (circle, triangle, square) and set their location (X and Y coordinates) to control where the light is coming from and how it is distributed in the image.

  • What is the process for installing the necessary custom nodes and models in comy?

    -Users need to go into the manager, install missing custom nodes, and then install the models by searching for 'I light' in the manager. They can choose to download the FC and FBC models. After downloading, users should refresh the interface to load the models.

  • How does the AI model maintain the original image details while applying new lighting?

    -The AI model regenerates the image to incorporate the new lighting effects, retaining much of the initial image details but allowing for necessary changes to integrate the lighting naturally.

  • What is the significance of the 'Epic Realism' preset in the workflow?

    -The 'Epic Realism' preset is likely a setting within the comy software that determines the style or quality of the image output when using the AI model for relighting.

  • Can the AI model be used to relight images with different aspect ratios?

    -Yes, the AI model can be used to relight images with different aspect ratios, but it may require adjustments to the shape mask or other settings to accommodate the differences in image dimensions.

Outlines

00:00

🌟 Dynamic Image Relighting with AI

This paragraph introduces the concept of using AI to control and manipulate light in images. It discusses a model created by Leo V, which can relight any image based on user preferences. The model is showcased with examples, such as changing the light source from left to right, and even incorporating shadows. The script also mentions the potential for community-created workflows to expand the capabilities of the model, allowing for more creative control over lighting in images. Additionally, it touches on the possibility of applying this technology to animations.

05:01

📘 Installing and Using the AI Lighting Model

The second paragraph provides a step-by-step guide on how to install and use the AI lighting model. It starts with downloading workflows and installing missing custom nodes, specifically IC Light. The paragraph explains the process of selecting and installing different models (FC, FBC, and fcon), each with their unique features and use cases. The focus is on the FC model for simplicity and the FBC model for incorporating a background image. The summary also illustrates how to load an image and adjust the lighting using a shape mask, allowing for precise control over the light's position and characteristics.

10:03

🎨 Creative Image Manipulation with Light

The final paragraph demonstrates the practical application of the AI lighting model using different workflows. It shows how to manipulate the lighting in images to create various effects, such as a spotlight, neon lights, or a sci-fi spaceship interior. The paragraph also addresses potential issues with model loading and provides solutions, such as ensuring the correct model is selected and dealing with missing nodes. The creative potential of the technology is highlighted, with the ability to mix and match different images to create unique and compelling visuals.

Mindmap

Keywords

💡AI

Artificial Intelligence (AI) refers to the simulation of human intelligence in machines that are programmed to think like humans and mimic their actions. In the video, AI is used to create a model that can relight any image, demonstrating how AI can be applied in creative and innovative ways beyond traditional computing tasks.

💡Relighting

Relighting is the process of altering the lighting conditions in an image or scene to achieve a desired visual effect. The video showcases a model that can relight images, allowing users to change the direction and type of light, which is crucial for photographers and designers looking to enhance or modify the mood of a photo.

💡Workflows

In the context of the video, workflows refer to a series of steps or processes that are followed to complete a certain task or project. The workflows made by Keyi are used to expand the capabilities of the AI model for relighting images, providing users with more options and flexibility in their creative work.

💡IC Light

IC Light is a native implementation within the software used in the video, which allows for advanced control over lighting in images. It is mentioned as a key component that enables the relighting of images with AI, offering users a high level of control and precision in their edits.

💡Custom Nodes

Custom nodes are user-defined functions or modules within a software application that can be used to extend the functionality of the program. In the video, the need to install missing custom nodes like IC Light is highlighted, which is essential for the proper operation of the AI model for relighting images.

💡Foreground and Background

Foreground and background refer to the parts of an image that are closest and farthest from the viewer, respectively. The video discusses how the AI model can be conditioned on both the text and the foreground, as well as the background, to generate images with relighting effects that are more contextually aware and realistic.

💡Text Prompt

A text prompt is a user-provided input of descriptive text that guides the AI in generating or editing images. In the context of the video, text prompts are used to inform the AI model on how the relighting should be applied to the input image, allowing for a more personalized and targeted outcome.

💡Shape Mask

A shape mask is a tool used in image editing that allows for the manipulation of specific areas of an image based on a predefined shape, such as a circle or a triangle. The video demonstrates how a shape mask can be used to control the direction and area of the light in an image, providing a visual example of how the light can be adjusted.

💡Rendering

Rendering is the process of generating an image, frame, or animation from a model by means of computer programs. It involves the calculation and representation of various aspects of the subject such as lighting, shadows, and textures. In the video, rendering is used to show how the AI regenerates the image with the new lighting conditions applied.

💡Stable Diffusion

Stable Diffusion is a term used in the video to refer to the software or process that allows for the stable and controlled application of AI models, such as IC Light, for image editing. It implies a reliable and efficient method for achieving the desired effects, such as relighting, without significant distortion or loss of image quality.

💡Animation

Animation is the process of creating the illusion of motion by sequentially displaying a series of images. The video mentions the possibility of applying the AI relighting model to animations, which suggests that the technology can be used to dynamically adjust lighting in moving images, adding a new dimension to visual storytelling.

Highlights

AI can now control and relight any image, providing new creative possibilities for photography and art.

Leo V has created a model that can dynamically change the lighting direction in an image, such as left light or right light.

The AI model is not limited to pre-selected options and can be expanded with workflows for more control.

Users can input their own images and apply AI-generated lighting effects, such as a sunset or neon lights.

The AI does not simply overlay lighting effects but regenerates the image to integrate the new light source.

Animations are also possible, with the AI adjusting the light movement based on the editor's input.

To use the AI lighting, one must first install the necessary software and workflows, which are linked in the description.

IC Light is a key component that needs to be installed as a custom node for the lighting effects to work.

Different models are available for different lighting scenarios, such as FC for foreground-only and FBC for foreground with background.

The default relighting model is conditioned on text and foreground, shaping the output based on the input prompt and image.

The FBC model allows for the inclusion of a background image, merging it with the foreground and text prompt.

The FC model is the default and is preferred for ease of use, unless a specific background is required.

The models are large, around 1.7 GB each, and require a good internet connection for downloading.

After installation, users can load their preferred model and start experimenting with different lighting effects on their images.

The shape mask is a key tool for controlling the direction and shape of the AI-generated light.

Examples include creating a spotlight effect, neon lights, or a sci-fi inspired light inside a spaceship.

The AI lighting effects can be combined with various workflows for different creative outcomes.

The AI's ability to relight images retains much of the original image's integrity, offering a more sophisticated result than simple overlays.

The technology allows for a high degree of customization, enabling users to manipulate light in ways previously not possible.