How to Convert a CUBE or 3DL LUT to a PNG Image
Follow our step-by-step guide below.
Overview
In most cases you’ll find that a LUT file is either a CUBE or 3DL file. Unfortunately OBS only supports an image version of this file. In this guide we’ll show you how to convert them to a PNG image.
What is a color look-up table (LUT)?
A color look-up table replaces the source video colors with different colors for dramatic effect.
1. Open a neutral LUT PNG image in photoshop
In Photoshop open a neutral LUT png image. OBS supplies a neutral LUT which you can find here.
2. Create a new color look-up layer
First select ‘Layer’ from the top menu, then ‘New Adjustment Layer’, and then finally select ‘Color Lookup…’. This should create a new layer above the neutral LUT layer.
3. Load the CUBE/3DL LUT file
Select the color lookup layer and go to properties. In the dropdown select ‘Load 3D LUT…”. Browse for the CUBE/3DL LUT file you wish to convert.
4. Save as uncompressed PNG
The neutral layer should now look different. The next step is to save the image as an uncompressed PNG. Save the file as if you were saving a standard Photoshop file, but instead of saving it as a PSD save it as a PNG.
Done!
You have now converted your CUBE/3DL LUT file to a PNG image. Follow our guide here to learn how to use the image LUT in OBS.
With your LUT pipeline sorted, the next challenge is delivery at scale, which is where enterprise video hosting comes in.