Only compatible with Unity BIRP and HDRP; Unity URP doesn't seem to understand external HDR tonemapping.
Based on the original Tony McMapface by Tomasz Stachowiak
If you're not familiar with external LUTs in Unity, follow these steps to set it up. Assuming your project is configured in Linear Color Space with a working Post-Process, here's how to add the external LUTs:
- Download the Unitypackage from from the release page and import it your Unity project.
- In your global Post-Process Volume Component, add a Color Grading effect by clicking on Add Effect... > Unity > Color Grading.
- Change the Mode to External.
- In the Lookup Texture field, drag and drop a LUT of your choice.
Enjoy!