https://caveacademy.com/wiki/onset-production/data-acquisition/data-acquisition-training/shooting-a-hdri-for-lighting/

https://docs.unity3d.com/2019.2/Documentation/uploads/ExpertGuides/High_Dynamic_Range_Imaging_HDRI.pdf

The goal is to clean the initial individual brackets before or at merging time as much as possible.
This means:

• keeping original shooting metadata
• de-fringing
• removing aberration (through camera lens data or automatically)
• at 32 bit
• in ACEScg (or ACES) wherever possible

Local copy