There’s an excellent free course by Gleb Alexandrov at Creative shrimp that shows how to use HDRI files in Blender, the open source rendering software.
The course is available here:
I created an HDRI file from 12 RICOH THETA V images and used it in the course. This video shows how to make the HDRI file with free software.
I’m a Blender novice and had to watch Gleb’s mouse movements a number of times. The videos are very detailed and I was able to figure out the correct sequence of movements eventually.
Exposure set to -3
Exposure set to -3
Set to -5
Exposure 0