دانلود تکستچر و قرار دادن روی گیم ابجکت در یونیتی با کلاس WWW

// Get the latest webcam shot from outside "Friday's" in Times Square
var url = "http://images.earthcam.com/ec_metros/ourcams/fridays.jpg";
function Start () {
	 // Start a download of the given URL
	var www : WWW = new WWW (url);

	// Wait for download to complete
	yield www;

	// assign texture
	renderer.material.mainTexture = www.texture;
}

منبع:
http://docs.unity3d.com/ScriptReference/WWW.html