Offset Code Unity

using UnityEngine;
using UnityEngine.UI;

[RequireComponent(typeof(Image))]
public class RarityBorderAnimator : MonoBehaviour
{
    [Tooltip("Assign a material configured for scrolling UVs.")]
    [SerializeField] private Material borderMaterial;

    [Tooltip("Speed at which the texture will scroll horizontally.")]
    [SerializeField] private float scrollSpeed = 0.5f;

    private Material runtimeMaterial;

    void Start()
    {
        // Double the scale so it obviously repeats
        runtimeMaterial.mainTextureScale = new Vector2(5f, 5f);
    }

    void Awake()
    {
        // Make a runtime copy of the material
        runtimeMaterial = Instantiate(borderMaterial);

        // Assign that copy to the Image
        Image image = GetComponent<Image>();
        image.material = runtimeMaterial;
    }

    void Update()
        {
            // Just apply the global offset from InventoryManager
            float offset = InventoryManager.globalSwirlOffset;
            runtimeMaterial.mainTextureOffset = new Vector2(offset, offset);
            runtimeMaterial.mainTextureScale = new Vector2(5f, 5f);
        }

    public void SetMaterial(Material newMat)
    {
        // If you want to update mid-runtime, you can reassign the runtime material
        if (runtimeMaterial != null) Destroy(runtimeMaterial);

        runtimeMaterial = Instantiate(newMat);
        GetComponent<Image>().material = runtimeMaterial;
    }

}