Do I need to change the "environment" in material editor?

I have recently downloaded “dream big characters” from the lumberyard website and i am going through the material editor to apply skins and what not, is there a point in changing the “Environment” from “nearest_cubemap” to something else and if so what do i need to change it to? As well I am unsure what the cube image is about in the picture if anyone would care to tell me what that is about.


The cubemap provides lighting and reflections in your levels. For the most accurate representation of your level, you will almost always leave this at ‘nearest_cubemap.’ Sometimes you might want your materials to reflect a specific probe so you also have the option to choose which probe to reflect.