ComfyUI Extension: ComfyUI_yanc

ComfyUI_yanc Introduction

ComfyUI_yanc is an extension for ComfyUI, a powerful and modular interface for creating and executing advanced Stable Diffusion workflows. This extension adds a collection of useful nodes that can enhance your image processing and text manipulation capabilities within ComfyUI. Designed to meet the author's personal needs, ComfyUI_yanc offers a variety of tools that can help AI artists streamline their creative processes, solve common problems, and achieve more refined results.

How ComfyUI_yanc Works

ComfyUI_yanc works by integrating additional nodes into the ComfyUI environment. These nodes are like building blocks that you can connect in a flowchart-style interface to create complex workflows without needing to write any code. Each node performs a specific function, such as rotating an image, generating noise, or manipulating text. By combining these nodes, you can create customized workflows tailored to your artistic needs.

Think of it like a digital art studio where each tool (node) has a specific purpose. You can pick and choose the tools you need, arrange them in the order you want, and create a seamless workflow that transforms your input into the desired output.

ComfyUI_yanc Features

Image Nodes

• Rotate Image: Rotates an image and outputs the rotated image along with a mask. This can be useful for aligning elements in your artwork.
• Scale Image to Side: Scales an image to a specified side (width, height, shortest, longest). You can also apply a mask, which will be resized accordingly.
• Resolution By Aspect Ratio: Calculates the aspect ratio of an input image and returns the closest matching resolution for either SD 1.5 or SDXL.
• Load Image: Similar to the ComfyUI vanilla node but includes a filename output option. You can choose to strip or keep the file extension.
• Save Image: Saves images with additional options like specifying a target folder and including metadata. Be cautious with the filename option to avoid overwriting files.
• Load Image From Folder: Loads images randomly or iteratively from a specified folder. Useful for batch processing or random image selection.
• Noise From Image: Generates noise from an image with various parameters to control the noise characteristics. Can be used with the NIKSampler.
• Normal Map Lighting: Adjusts the lighting of an image using a diffuse map, normal map, and specular map.

Text Nodes

• Text: A simple multiline text node.
• Text Combine: Combines two text inputs with an optional delimiter and the option to add an empty line between them.
• Text Pick Random Line: Picks a random line from a multiline text input. You can set a fixed seed to stop the random selection.
• Clear Text: Empties the text based on a given chance (0.0 = 0%, 1.0 = 100%).
• Text Replace: Replaces specified text within the input text.
• Text Random Weights: Adds random weights to lines of text, useful for creating varied text outputs.
• Int to Text: Converts an integer to text, with options for leading zeros and specifying the length of the output string.

Basic Nodes

• Int: Outputs a simple integer value.
• Float to Int: Converts a float value to an integer using functions like round, floor, or ceil.

Sampling Nodes

• NIKSampler: A specialized sampler node. For detailed usage, refer to the video tutorial.

Masking Nodes

• Light Source Mask: Creates a blurred mask from the brightest parts of an image, adjustable with a threshold.

Utility Nodes

• Get Mean Color: Calculates the mean color of an image, with an option to apply a mask to a specific area.
• RGB Color: Creates RGB colors and outputs them in various formats (INT, HEX).

ComfyUI_yanc Models

Currently, ComfyUI_yanc does not include different models. It focuses on providing a versatile set of nodes that can be used within the existing ComfyUI framework.

What's New with ComfyUI_yanc

Latest Updates

• 2024/06/10: Added RGBColor, GetMeanColor, and NormalMapLighting nodes.
• 2024/05/27: Added LightSourceMask and mask support for the rescale image node.
• 2024/05/17: Added NIKSampler and "Noise From Image" nodes.
• 2024/04/14: Added the "Resolution by Aspect Ratio" node.
• 2024/04/08: Added an option to warn the user if files will get overwritten and added a "Scale to Image Side" node.
• 2024/04/04: Added nodes: "Int to Text", "Int", "Float to Int".
• 2024/04/03: First Commit. These updates bring new functionalities and improvements, making the extension more versatile and user-friendly for AI artists.

Troubleshooting ComfyUI_yanc

Common Issues and Solutions

1. Images Overwriting: If your images are being overwritten, ensure that the filename_opt input is not connected or is dynamically changing.
2. Node Errors: If a node is not functioning as expected, double-check the input connections and parameter settings.
3. Loading Images: Ensure that the specified folder for loading images exists within the input directory.

Frequently Asked Questions

• Q: How do I reset the index for the "Load Image From Folder" node?
• A: Set the primitive connected to the "index" input back to 0.
• Q: What values should I use for the "Noise From Image" node parameters?
• A: For SD 1.5, a noise_resize_factor of 2 is good, while SDXL would take 3-4. Adjust other parameters based on the desired noise characteristics.

Learn More about ComfyUI_yanc

For additional resources, tutorials, and community support, you can visit the following links:

• ComfyUI Examples
• ComfyUI GitHub Repository
• A Latent Place YouTube Channel (German with English subtitles)
• ComfyUI Discord Community These resources provide valuable information and support to help you get the most out of ComfyUI_yanc and enhance your AI art projects.