Question by tarasrng · May 18, 2017 at 08:46 PM · texture mesh material uvs

Weird artefact while rotating mesh uvs

I created a Unity sphere and applied standard material with albedo texture. Now I'm trying to rotate mesh uvs (it looks like this is the simpliest way to rotate the texture)

Here is the code

 using UnityEngine;
 
 public class GameController : MonoBehaviour {
     public GameObject player;
     public float rotationValue;
 
     void Start () {
         Mesh mesh = player.GetComponent<MeshFilter>().mesh;
         Vector2[] uvs = mesh.uv;
 
         mesh.uv = changeUvs(uvs);
     }
 
     private Vector2[] changeUvs (Vector2[] originalUvs)
     {
         for (int i = 0; i < originalUvs.Length; i++)
         {
             originalUvs[i].x = originalUvs[i].x + rotationValue;
             if (originalUvs[i].x > 1)
             {
                 originalUvs[i].x = originalUvs[i].x - 1f;
             }
         }
         return originalUvs;
     }
 }

This gives me this strange artifact. What am I doing wrong? alt text