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30 lines
701 B
30 lines
701 B
2 years ago
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// Created by 14727 on 2022/12/11.
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//
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#ifndef NURBSEVALUATOR_BVH_CUH
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#define NURBSEVALUATOR_BVH_CUH
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#include "../aabb.cuh"
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struct BVHNode {
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AABB bounds; // AABB包围盒
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int firstChild, level, childNum = 4; // 第一个孩子节点的下标，该结点所在层次，孩子个数
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// 曲面片u, v的范围
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float u0, u1, v0, v1;
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};
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class BVH {
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public:
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int maxLevel, size;
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BVHNode* nodes = nullptr;
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__host__ void printQuadTree();
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};
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__global__ void
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buildSurfaceBvh(const float *k, int level, const float *evaluatedPoints, float d_lastKnot_u, float d_lastKnot_v,
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int d_sampleCnt_u, int d_sampleCnt_v, BVHNode *BVH);
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#endif //NURBSEVALUATOR_BVH_CUH
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