@@ -2710,8 +2710,8 @@
 		options.pickable = false
 		options.canvas = o.canvas
 		if (options.offset === undefined) options.offset = vec(0,0,0)
-		options.pos = o.pos.add(options.offset)
 		if (options.offset.x === undefined ) throw new Error('The attach_light attribute "offset" must be a vector.')
+		options.pos = o.pos.add(options.offset)
 		if (options.color === undefined) options.color = o.color
 		let a = local_light(options)
 		o.canvas.attached_lights.push(a)