LTGenerator
LTGenerator is a standalone application that requires no installation, designed to simplify the creation of LUT (Look-Up Table) textures for Unreal Engine and Unity. It supports generating textures in sizes 256x16, 1024x32, and 4096x64, allowing you to easily replicate your creative look in the engine.
What is LUT Texture?
1. Neutral LUT Texture.
2. LUT Texture with Look baked
A LUT (Look-Up Table) texture acts as a modifier between two images: the original image and the displayed image. Based on a mathematical formula, it essentially serves as a table that assigns new colors (img 2) to existing ones based on a predefined mapping (img 1).
Each pixel in the LUT texture represents a specific color transformation. When applied in engines like Unreal Engine, this LUT texture can be used in post-processing to adjust the colors of the entire scene according to the mapped values.
How it works
It's simple to use: just load your .cube file, select your DCC and LUT size, and preview the output LUT texture. You can compare it to the neutral texture if needed before you hit export. Upon export, the new LUT textures are saved in the same location as the original LUT file.
Usage in UE
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Imported the LUT texture in Unreal Engine's Content Browser.
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Open the imported texture by double clicking, under Level of details change
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Mip Gen Settings : NoMipMaps
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Texture Group : ColorLookupTable
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Back in scene, add Post Process Volume, under Misc
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Color Grading LUT : load imported texture​
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Tone Curve Amount : 0
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Blue Correction: 0
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Expand Gamut: 0
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Under Post Process Volume Setting, Turn on Infinite Extend​
Support/Feedback
If you experience any trouble with the tool feel free to email me.
I'll do my best to help you either with advice or bug fixes. Feedback and/or suggestions for possible future updates are very welcome.