Copyright notice: This article is an original article and follows
CC 4.0 BY-NC-ND
Copyright agreement. If you want to repost this article, please attach the original source link and this statement.
Source link:
https://www.v2know.com/MainPage/PreView/235
什么是Vector3.ProjectOnPlane？
官方文档解释得可能太长了，
public static Vector3 ProjectOnPlane(Vector3 vector, Vector3 planeNormal)
一共2个参数，vector是你的向量，planeNormal是某个平面的法向量。
这个函数返回的是vector在某个平面的投影向量。
实现方式如下：
Vector3 ProjectOnPlane(Vector3 vector, Vector3 planeNormal)
{
return vector - planeNormal * Vector3.Dot(vector, planeNormal.normalized);
}
回到目录：
[1] [Unity]从零开始认识C#脚本——以第三人称控制器为例
参考文档：
[1] https://docs.unity3d.com/ScriptReference/Vector3.ProjectOnPlane.html
[2] https://answers.unity.com/questions/1601159/i-dont-understand-vector3projectonplane.html