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unity基礎開發----unity中的UV動畫實現程式碼

在unity有時候需要使用UV動畫,程式碼如下
using UnityEngine;
using System.Collections;

public class UVAnimation : MonoBehaviour {

    public int ScrollSpeed = 5;
    public int countX = 1;
    public int countY = 2;

    private float offsetX = 0.0f;
    private float offsetY = 0.0f;
   // private GameObject singleTexSize;
	// Use this for initialization
	void Start () {
        float x_1 = 1.0f / countX;
        float y_1 = 1.0f / countY;
        renderer.material.mainTextureScale = new Vector2(x_1,y_1);

	}
	
	// Update is called once per frame
	void Update () {

        float frame = Mathf.Floor(Time.time * ScrollSpeed);
        offsetX = frame / countX;
        offsetY = -(frame - frame % countX) / countY / countX;
        renderer.material.SetTextureOffset("_MainTex", new Vector2(offsetX, offsetY));
        
	}
}