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32 lines
1.2 KiB
32 lines
1.2 KiB
//
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// Created by 14727 on 2022/11/19.
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//
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#ifndef NURBSEVALUATOR_NURBS_COMMON_CUH
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#define NURBSEVALUATOR_NURBS_COMMON_CUH
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/**
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* 当u值已知时，根据基函数N的递推表达式，采用动态规划的方式求解N值
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* @param N_Texture 结果返回在N_Texture中
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*/
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__device__ void d_basisFunction(float *nTexture, const float *knots, float u, int degree, int d_knotsCnt);
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/**
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* 计算并保存基函数值
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* @param nTexture 记录度数为p的基函数值，规模为【sampleCnt，pointsCnt】
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* @param nTexture1 记录度数为p-1的基函数值，规模为【sampleCnt+1，pointsCnt】
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*/
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__global__ void
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g_basisTexture(float *nTexture, float *nTexture1, const float *d_knots, int d_pointsCnt, int d_knotsCnt,
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int d_sampleCnt);
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/**
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* 计算并保存基函数对采样点切向量的分量值
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* @param derTexture 记录度数为p的Nurbs基函数对采样点切向量的分量值，大小为【sampleCnt，pointsCnt】
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* @param nTexture1 度数为p-1的基函数值，规模为【sampleCnt+1，pointsCnt】
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*/
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__global__ void
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g_derTexture(float *derTexture, const float *nTexture1, const float *d_knots, int d_pointsCnt, int d_knotsCnt,
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int d_sampleCnt);
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#endif //NURBSEVALUATOR_NURBS_COMMON_CUH
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