moving background

i want to make background that moves, camera does not move. so what is the best way to achive this? plane with uvs moving, or plane moving, looping somehow or something else?

thanks!

The easiest way is moving the main texture offset.

var scrollSpeed : float = 0.5;

function Update() {
var offset : float = Time.time * scrollSpeed;
renderer.material.mainTextureOffset = Vector2 (offset, 0);
}

You could make the plane in a modelling program and set an animation .