NurbsPerformer/include/device/aabb.cuh

//
// Created by 14727 on 2022/12/11.
//

#ifndef NURBSEVALUATOR_AABB_CUH
#define NURBSEVALUATOR_AABB_CUH

#include "vec.cuh"
#include "glm/glm.hpp"
#include "cstdio"

class AABB {
public:
    // 边界
    glm::vec3 pMin, pMax;
    __device__ __host__ AABB();
    __device__ __host__ explicit AABB(const glm::vec3& p);
    __device__ __host__ AABB(const glm::vec3& p1, const glm::vec3& p2);

    // aabb包围盒合并操作，包围盒和点
    __device__ __host__ AABB Union(const glm::vec3& p) const;
    // aabb包围盒合并操作，两个包围盒
    __device__ __host__ AABB Union(const AABB& b2) const;
    // aabb包围盒沿各坐标轴政府方向分别扩张
    __device__ __host__ void expand(float k);
    // 判断两个aabb包围盒是否重叠
    __device__ __host__ bool IsOverlap(const AABB& b2) const;
};

#endif //NURBSEVALUATOR_AABB_CUH