The Olm LUT Node is a specialized node for ComfyUI designed to apply .cube Look-Up Tables (LUTs) to images, enhancing color grading and aesthetic stylization. It allows users to incorporate LUTs into their generative workflows efficiently, supporting various creative applications such as film emulation.
- Supports the application of standard
.cubeLUTs with adjustable blending strength and optional gamma correction. - Features multiple test modes for validating LUT effects, including passthrough and various color test patterns.
- Automatically loads LUT files from a designated local directory, streamlining the workflow for users.
Context
The Olm LUT Node is a focused extension for ComfyUI, specifically engineered to apply LUTs to images in a straightforward manner. Its primary purpose is to enhance visual outputs by enabling precise color adjustments without the clutter of unrelated functionalities.
Key Features & Benefits
This tool allows users to apply industry-standard .cube LUTs, with the ability to adjust blending strength from 0.0 (no effect) to 1.0 (full effect), ensuring flexibility in color manipulation. Additionally, it includes optional gamma correction to accommodate images in sRGB space, making it suitable for a variety of workflows.
Advanced Functionalities
The node supports high-accuracy 3D LUT interpolation, which is crucial for achieving smooth color transitions and accurate color representation. Moreover, it provides several built-in test modes to help users visualize the effects of their LUTs, including the ability to output test patterns like gradients and color bars.
Practical Benefits
By integrating the Olm LUT Node into their workflows, users can significantly enhance their control over color grading processes in ComfyUI. This tool simplifies the application of LUTs, improves workflow efficiency by reducing unnecessary complexity, and ultimately elevates the quality of generated images.
Credits/Acknowledgments
The Olm LUT Node was developed by @o-l-l-i and is built on the ComfyUI framework, which provides the foundational capabilities for this node. Special thanks to Suzie1 for the informative Guide To Making Custom Nodes in ComfyUI.