Previously my HDRIs were all licensed as CC-BY-SA, but some folks have pointed out to me that that’s not very nice for commercial users because it means that they have to license their work as CC-BY-SA too.

Obviously that’s not cool.

So instead, consider all HDRIs posted on this site to simply be CC-BY, meaning:

You can use them for anything.

You don’t have to license any work that uses an HDRI as Creative Commons.

have to license any work that uses an HDRI as Creative Commons. I’d appreciate it if you give me credit and link back here when you use one of them, but I know that can be a bit annoying sometimes, so I won’t mind if you don’t do that. But if you share them around, be sure to tell people where you got them so that they can discover more :)