释放3维向量C++

struct Vector3 {
    float x;
    float y;
    float z;
};

// 向量加法
Vector3 add(Vector3 a, Vector3 b) {
    Vector3 result;
    result.x = a.x + b.x;
    result.y = a.y + b.y;
    result.z = a.z + b.z;
    return result;
}

// 向量点乘
float dotProduct(Vector3 a, Vector3 b) {
    return a.x * b.x + a.y * b.y + a.z * b.z;
}

// 向量叉乘
Vector3 crossProduct(Vector3 a, Vector3 b) {
    Vector3 result;
    result.x = a.y * b.z - a.z * b.y;
    result.y = a.z * b.x - a.x * b.z;
    result.z = a.x * b.y - a.y * b.x;
    return result;
}

// 向量长度
float length(Vector3 v) {
    return sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
}

// 单位化向量
Vector3 normalize(Vector3 v) {
    float len = length(v);
    Vector3 result;
    result.x = v.x / len;
    result.y = v.y / len;
    result.z = v.z / len;
    return result;
}

#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>

glm::vec3 a(1.0f, 2.0f, 3.0f);
glm::vec3 b(4.0f, 5.0f, 6.0f);

// 向量加法
glm::vec3 result = a + b;

// 向量点乘
float dotProduct = glm::dot(a, b);

// 向量叉乘
glm::vec3 crossProduct = glm::cross(a, b);

// 向量长度
float len = glm::length(a);

// 单位化向量
glm::vec3 normalized = glm::normalize(a);