Are there different levels of distribution of 3m advertising lights?

A 7M light cloth is already very large. It is usually used as a background wall or outdoor advertising. If it is In the case of the latter, you can just create a 700x300cm image and set the pixels to 30. Because outdoor advertisements are relatively high from the ground, they can only be viewed from a distance and cannot be viewed up close. The effect will not be good when viewed from a distance. You will feel that the pixels are too low, and 30 is enough. If your image is vector, you don’t have to worry about pixels. If it is a background wall, 60 pixels is enough, and it is also 700x300cm. This has the disadvantage that saving the file will be very slow, and the file exceeds at least 350M. It will also get stuck when drawing, so you can adjust the size to a smaller size. If it's not a very important party or something, that's fine. Who specifically goes to see this thing? .