/// <summary>
/// 将一个纹理对象保存为文件。要求<see cref="Texture2D.isReadable"/>开启
/// </summary>
/// <param name="texture"></param>
/// <param name="path">路径名，不以斜杠结尾</param>
/// <param name="fileName">文件名，不包含扩展名</param>
/// <param name="format"></param>
/// <param name="destroyAfterSave">是否保存后销毁原texture，调用<c>DestroyImmediate</c></param>
/// <returns>生成文件的路径</returns>
public static string SaveTexture2DtoFile(Texture2D texture, string path, string fileName, SavingTextureFormat format, bool destroyAfterSave)
{
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
if (!Directory.Exists(path))
{
EditorUtility.DisplayDialog("Error", "SaveTexture2DtoFile: Cannot create path " + path, "OK");
return(null);
}
byte[] bytes;
string fName;
switch (format)
{
case SavingTextureFormat.JPG:
bytes = texture.EncodeToJPG();
fName = path + "/" + fileName + ".jpg";
break;
case SavingTextureFormat.PNG:
bytes = texture.EncodeToPNG();
fName = path + "/" + fileName + ".png";
break;
case SavingTextureFormat.TGA:
bytes = texture.EncodeToTGA();
fName = path + "/" + fileName + ".tga";
break;
case SavingTextureFormat.EXR:
bytes = texture.EncodeToEXR();
fName = path + "/" + fileName + ".exr";
break;
default:
throw new ArgumentOutOfRangeException(nameof(format), format, null);
}
FileStream file = File.Open(fName, FileMode.Create);
BinaryWriter writer = new BinaryWriter(file);
writer.Write(bytes);
file.Close();
if (destroyAfterSave)
{
UnityEngine.Object.DestroyImmediate(texture);
}
return(fName);
}
/// <summary>
/// 将一个纹理对象保存为文件。要求<see cref="Texture2D.isReadable"/>开启
/// </summary>
/// <param name="texture"></param>
/// <param name="filePathWithoutExt">文件路径，不包含扩展名</param>
/// <param name="format"></param>
/// <param name="destroyAfterSave">是否保存后销毁原texture，调用<c>DestroyImmediate</c></param>
/// <returns>生成文件的路径</returns>
public static string SaveTexture2DtoFile(Texture2D texture, string filePathWithoutExt, SavingTextureFormat format, bool destroyAfterSave)
{
string path = Path.GetDirectoryName(filePathWithoutExt);
string fn = Path.GetFileName(filePathWithoutExt);
return(SaveTexture2DtoFile(texture, path, fn, format, destroyAfterSave));
}
