/// <summary>
/// 将所有图层进行渐变
/// </summary>
/// <param name="transtime"></param>
public EffectPiece TransAll(float transtime = 0.5f)
{
Queue <NewImageEffect> effects = new Queue <NewImageEffect>();
effects.Enqueue(NewEffectBuilder.TransAll(transtime));
return(new EffectPiece(id++, effects));
}