Say I want a "world map" (maybe think the overworld in ff games) with dimensions 800px by 600px. How would I do that? Is this tied in with the resolution? Because I know you can set the game aspect.
Tutorials don't seem to cover this. For example, in this video, he just sort of drops the sky into the scene. You can see that some parts of the sky is cut off. He fixes this later by setting the pixels to units to 200 instead of 100. However, this all seems arbitrary to me. We don't know how large the sky is now, ie we don't know the dimensions of the sky. How do people fix this problem? Do you just look at the original image and do math to figure out how "large" it is in unity? What happens if you do something like this video where no size is defined?