using UnityEngine;

public class ShiftUV : MonoBehaviour
{
      public float xShift;
      public float yShift;

   void Start ()
      {
          MeshFilter mf = gameObject.GetComponent<MeshFilter>();
          Mesh mesh = mf.mesh;
          Vector2[] uvs = mesh.uv;
          Vector2[] newUVs = new Vector2[uvs.Length];
          for (int i = 0; i < uvs.Length; i++)
          {
              newUVs[i] = new Vector2(uvs[i].x + xShift, uvs[i].y + yShift);
          }
          mesh.uv = newUVs;
          mf.mesh = mesh;
   }
}