I'm trying to create a Tiled Sprite, what am I doing wrong?

Since apparently Unity 2D still lacks tiled sprites, I'm tyring to create a class which takes a normal Sprite and tiles it using custom dimentions.

It doesn't crash, but doesn't yield results either: I just get an empty sprite apparently.

The transform position is correct (unaltered), I do use Apply, and the new width is multiple of the original one. Now I'm clueless about what could be the problem.

Hint: I'm >>>NOT<<< talking about atlases, which now are natively supported, I'm talking about having a single sprite and displaying tiled multiple times (which might be supported in future, but currently apparently isn't)

Here's the script, can anybody help?

 using UnityEngine;
 using System.Collections;
 
 public class TiledSprite : MonoBehaviour
 {
     public int width,height;
 
     private SpriteRenderer renderer;
     private Sprite originalSprite;
 
     void Awake ()
     {
         renderer=GetComponent<SpriteRenderer>();
         originalSprite=renderer.sprite;
 
         // crea il nuovo Sprite
 
         Texture2D target = new Texture2D(width,height);
         int ow = originalSprite.texture.width;
         int oh = originalSprite.texture.height;
 
         Color32[] pixOrig = originalSprite.texture.GetPixels32();
         Color32[] pixDest = new Color32[width*height];
 
         int osize=ow*oh,dsize=width*height;
         int cur=0;
         while (cur<dsize)
         {
             for (int cur2=0; cur2<osize; cur2++)
             {
                 pixDest[cur++]=pixOrig[cur2];
             }
         }
 
         target.SetPixels32(pixDest);
         target.Apply();
 
         Sprite newSprite = Sprite.Create(target,new Rect(0,0,width,height),new Vector2(width/2,height/2));
         renderer.sprite=newSprite;
     }
 }