Vector4.Vector3

描述

将 Vector4 转换为 Vector3。

Vector4 到 Vector3 的隐式转换。将 Vector4.w 舍弃。

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        // Create and display a Vector4.
        Vector4 vector4;

        vector4 = new Vector4(1.0f, 2.0f, 3.0f, 4.0f);
        Debug.Log("Vector4: " + vector4);

        // Convert the Vector4 into a Vector3.
        Vector3 vector3;
        vector3 = vector4;

        // The 4.0f is not copied into the Vector3.
        // Show (1.0f, 2.0f, 3.0f).
        Debug.Log("Vector3: " + vector3);
    }
}