Unity是不識別Gif格式圖的，需要我們使用c#將gif里多幀圖轉化為Texture2D格式。需要使用System.Drawing.dll.此dll在unity安裝目錄下就可以找到。由于unity沒有gif格式的文件，所以我們無法在面板指定，需要動態加載。所以將gif圖放在StreamingAssets文件夾下。以下為源代碼：
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using System;using System.Collections;using System.Collections.Generic;using System.Drawing;using System.Drawing.Imaging;using System.IO;using UnityEngine; public class PlayGif : MonoBehaviour { public UnityEngine.UI.Image Im; public string gifName = ""; public GameObject[] Ims; [SerializeField] private float fps = 5f; private List<Texture2D> tex2DList = new List<Texture2D>(); private float time; Bitmap mybitmp; void Start() { System.Drawing.Image image = System.Drawing.Image.FromFile(Application.streamingAssetsPath + "/"+gifName+".gif"); tex2DList = MyGif(image); } // Update is called once per frame void Update() { if (tex2DList.Count > 0) { time += Time.deltaTime; int index = (int)(time * fps) % tex2DList.Count; if (Im != null) { Im.sprite = Sprite.Create(tex2DList[index], new Rect(0, 0, tex2DList[index].width, tex2DList[index].height), new Vector2(0.5f, 0.5f)); } if (Ims.Length != 0) { for (int i = 0; i < Ims.Length; i++) Ims[i].GetComponent<Renderer>().material.mainTexture = tex2DList[index]; } } } private List<Texture2D> MyGif(System.Drawing.Image image) { List<Texture2D> tex = new List<Texture2D>(); if (image != null) { //Debug.Log("圖片張數：" + image.FrameDimensionsList.Length); FrameDimension frame = new FrameDimension(image.FrameDimensionsList[0]); int framCount = image.GetFrameCount(frame);//獲取維度幀數 for (int i = 0; i < framCount; ++i) { image.SelectActiveFrame(frame, i); Bitmap framBitmap = new Bitmap(image.Width, image.Height); using (System.Drawing.Graphics graphic = System.Drawing.Graphics.FromImage(framBitmap)) { graphic.DrawImage(image, Point.Empty); } Texture2D frameTexture2D = new Texture2D(framBitmap.Width, framBitmap.Height, TextureFormat.ARGB32, true); frameTexture2D.LoadImage(Bitmap2Byte(framBitmap)); tex.Add(frameTexture2D); } } return tex; } private byte[] Bitmap2Byte(Bitmap bitmap) { using (MemoryStream stream = new MemoryStream()) { // 將bitmap 以png格式保存到流中 bitmap.Save(stream, ImageFormat.Png); // 創建一個字節數組，長度為流的長度 byte[] data = new byte[stream.Length]; // 重置指針 stream.Seek(0, SeekOrigin.Begin); // 從流讀取字節塊存入data中 stream.Read(data, 0, Convert.ToInt32(stream.Length)); return data; } }} |
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原文鏈接：https://blog.csdn.net/qq_33994566/article/details/86534969
