又是培训机构的出品。。。。。。
2020.3.27
发现跟随时抖动的原因了，其实应该按照传统相机的跟随逻辑放在late update里执行，但是由于开发cinemachine的开发组很坑地把cinemachine freelook里的三个轨道Damping值默认给了3，于是相机会以每0.75秒的延时重定位到轨道上，造成跟随时相机的疯狂抖动。
现在最新版本Cinemachine 的Damping是1，不敢想象，之前的3，是有多抖
(解决）
账号过期了，也无法看到，底层的逻辑是否真的在 Update()里面一直执行，导致疯狂抖动，也无法控制渲染，这个的cinemachine 你们是不是真的敢用在游戏 Runtime？？
namespace Cinemachine
{
/// <summary>
/// A Cinemachine Camera geared towards a 3rd person camera experience.
/// The camera orbits around its subject with three separate camera rigs defining
/// rings around the target. Each rig has its own radius, height offset, composer,
/// and lens settings.
/// Depending on the camera's position along the spline connecting these three rigs,
/// these settings are interpolated to give the final camera position and state.
/// </summary>
[DocumentationSorting(DocumentationSortingAttribute.Level.UserRef)]
[DisallowMultipleComponent]
[ExecuteAlways]
[ExcludeFromPreset]
[AddComponentMenu("Cinemachine/CinemachineFreeLook")]
[HelpURL(Documentation.BaseURL + "manual/CinemachineFreeLook.html")]
public class CinemachineFreeLook : CinemachineVirtualCameraBase
{
