I noticed that Lighting Quailty can be set next to the Build button, and it will affect the quality of the baking. I want to know whether this option will affect the final performance or is it just for the convenience of previewing the baking effect. Should I always set the product level before releasing the product, or should I set a different level based on my target platform?
If you are talking about this button
This will not affect your performance, the only thing that would affect is the time and the quality of the baking. Baking light has 0 performance impact because it’s precalculated and applied to the world. In case that you need a further explanation I will let you down the link of the ue4 doc, hope this helps.
Thanks, it helps me a lot.