Unity教程之-Unity3d中Sprite（精灵）的切割和导出
Unity中经常使用到精灵，尤其是2D游戏中制作动画等！今天我们就学习下精灵的切割和导出吧！
废话不多说，先建议空的工程。
1，打开Unity建工程，同时导入素材进行资源分类，工程不在于大小，这是我们对待它的态度！
2.开始分割精灵，三步走！
编辑精灵.
开始分割精灵
Apply一下，看下分割的精灵，0-9共9个。
贴精灵导出代码：
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using
UnityEngine;
using
UnityEditor;
public
class
SpriteTailed:MonoBehaviour
{
[MenuItem(
"Tools/导出精灵"
)]
static
void
SaveSprite()
{
string resourcesPath =
"Assets/Resources/"
;
foreach (Object obj in Selection.objects)
{
string selectionPath = AssetDatabase.GetAssetPath(obj);
// 必须最上级是"Assets/Resources/"
if
(selectionPath.StartsWith(resourcesPath))
{
string selectionExt = System.IO.Path.GetExtension(selectionPath);
if
(selectionExt.Length == 0)
{
continue
;
}
// 从路径"Assets/Resources/Sprite/number.png"得到路径"Sprite/number"
string loadPath = selectionPath.Remove(selectionPath.Length - selectionExt.Length);
loadPath = loadPath.Substring(resourcesPath.Length);
// 加载此文件下的所有资源
Sprite[] sprites = Resources.LoadAll
if
(sprites.Length > 0)
{
Debug.Log(sprites.Length);
// 创建导出文件夹
string outPath = Application.dataPath +
"/outSprite/"
+ loadPath;
System.IO.Directory.CreateDirectory(outPath);
foreach (Sprite sprite in sprites)
{
Debug.Log(
"Export Sprite："
+ sprite.name);
// 创建单独的纹理
Texture2D tex =
new
Texture2D((
int
)sprite.rect.width, (
int
)sprite.rect.height, sprite.texture.format,
false
);
tex.SetPixels(sprite.texture.GetPixels((
int
)sprite.rect.xMin, (
int
)sprite.rect.yMin,
(
int
)sprite.rect.width, (
int
)sprite.rect.height));
tex.Apply();
// 写入成PNG文件
System.IO.File.WriteAllBytes(outPath +
"/"
+ sprite.name +
".png"
, tex.EncodeToPNG());
}
Debug.Log(
"SaveSprite to "
+ outPath);
}
}
}
Debug.Log(
"SaveSprite Finished"
);
}
}
将脚本挂到MainCamera上，点击Tools/导出精灵：
OK，大功告成，好了，本篇unity3d教程关于Sprite精灵的切割和导出到此结束，下篇我们再会！