EditorUtility.SaveFilePanel 保存文件面板

// Opens a file selection dialog for a PNG file and saves a selected texture to the file.
//打开一个PNG文件选择对话框并保持一个选择的纹理到文件
import System.IO;

class EditorUtilitySaveFilePanel {

	@MenuItem("Examples/Save Texture to file")
	static function Apply () {

		var texture : Texture2D = Selection.activeObject as Texture2D;
		if (texture == null) {
			EditorUtility.DisplayDialog(
				"Select Texture",
				"You Must Select a Texture first!",
				"Ok");
			return;
		}

		var path = EditorUtility.SaveFilePanel(
			"Save texture as PNG",
			"",
			texture.name + ".png",
			"png");

		if(path.Length != 0) {
			// Convert the texture to a format compatible with EncodeToPNG
			//转换纹理到EncodeToPNG兼容格式
			if(texture.format != TextureFormat.ARGB32 && texture.format != TextureFormat.RGB24){
				var newTexture = Texture2D(texture.width, texture.height);
				newTexture.SetPixels(texture.GetPixels(0),0);
				texture = newTexture;
			}
			var pngData = texture.EncodeToPNG();
			if (pngData != null)
				File.WriteAllBytes(path, pngData);
		}
	}
}