它使用“图像”和“图形”类的系统。图的命名空间，所以需要“system.Drawing.dll“要导入的文件/添加到项目中。

使用前准备：

1）复制”"System.Drawing.dll" file in the "C:\Program Files (x86)\Unity\Editor\Data\Mono\lib\mono\2.0"文件到"Assets" 文件夹下面。

2）创建一个新的脚本命名为“animatedgifdrawer”，与下面的内容。

3）将这个脚本场景中的任何对象。

4）更改脚本”loadinggifpath”字段，你的GIF文件的路径。（这可以从根项目文件夹是相对的也可以是绝对的。

下面给出C#代码：

using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using UnityEngine;public class AnimatedGifDrawer : MonoBehaviour
{public string loadingGifPath;public float speed = 1;public Vector2 drawPosition;List<Texture2D> gifFrames = new List<Texture2D>();void Awake(){var gifImage = Image.FromFile(loadingGifPath);var dimension = new FrameDimension(gifImage.FrameDimensionsList[0]);int frameCount = gifImage.GetFrameCount(dimension);for (int i = 0; i < frameCount; i++){gifImage.SelectActiveFrame(dimension, i);var frame = new Bitmap(gifImage.Width, gifImage.Height);System.Drawing.Graphics.FromImage(frame).DrawImage(gifImage, Point.Empty);var frameTexture = new Texture2D(frame.Width, frame.Height);for (int x = 0; x < frame.Width; x++)for (int y = 0; y < frame.Height; y++){System.Drawing.Color sourceColor = frame.GetPixel(x, y);frameTexture.SetPixel(frame.Width - 1 - x, y, new Color32(sourceColor.R, sourceColor.G, sourceColor.B, sourceColor.A)); // for some reason, x is flipped}frameTexture.Apply();gifFrames.Add(frameTexture);}}void OnGUI(){GUI.DrawTexture(new Rect(drawPosition.x, drawPosition.y, gifFrames[0].width, gifFrames[0].height), gifFrames[(int)(Time.frameCount * speed) % gifFrames.Count]);}
}