Unity3D 给模型偏移纹理

给模型偏移纹理

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(Renderer))]
public class ModelTextureAnimation : MonoBehaviour {

	//材质索引
	public int MaterialIndex;

	//材质主纹理名字
	public string TextureName = "_MainTex";

	//行数
	public int Column = 1;

	//列数
	public int Row = 1;

	//每帧间隔
	public float Inverval = 0.333f;

	//当前帧索引
	public int Index = 0;

	private Renderer mRenderer;
	private Material mMaterial;

	// Use this for initialization
	void Start () {
		mRenderer = renderer;
		mMaterial = mRenderer.sharedMaterials[MaterialIndex];

		mMaterial.SetTextureScale(TextureName, new Vector2(1.0f / Column, 1.0f / Row));

		StartCoroutine(Animate());
	}

	IEnumerator Animate()
	{
		SetTextureOffset();
 		while(true)
		{
			yield return new WaitForSeconds(Inverval);

			if (true == mRenderer.active)
			{
				Index++;
				Index %= (Column * Row);
				SetTextureOffset();
			}
		}
	}

	//根据帧数算出Offset
	void SetTextureOffset()
	{
		float x = (1.0f / Column) * (Index % Column);
		float y = (1.0f / Row) * (Index / Column);
		mMaterial.SetTextureOffset(TextureName, new Vector2(x,y));
	}

	// Update is called once per frame
#if UNITY_EDITOR
	void Update () {
		mMaterial.SetTextureScale(TextureName, new Vector2(1.0f / Column, 1.0f / Row));
	}
#endif
}