I'm new to Unity, and have been confused about this issue for a while. Some people say that for 2D games you don't need to worry about performance (I'm making the game for PC, not mobile) while others report bad performance with larger sized sprites
I have a long scene with some large background sprites, measuring about 14552x3308 (weird resolution I know, would that also cause issues?) All methods of scaling it down and resizing in Unity lead to jagged edges (these are basically hills so I need them to be significantly bigger than the player character) I always keep the image size in the inspector similar to the resolution of the actual file, and set the filter mode to Point, so the jagged edges are not due to that, but only because of me scaling up a smaller file size to fit the scene.
If I use the original sprites of 14552x3308, it's perfectly smooth (image size set to 8192 in inspector) but each file takes about 120mb in the profiler. All combined, my assets are showing a usage of 1.25 GB for this scene. How bad is this? Should I be trying to keep it under 1GB?
I don't really know what the best practices are in this situation, so I don't know what to aim for. I'd ideally like to keep the sprites at this large size so that I don't have to redraw anything.