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AZRMATH.H
60 lines (38 loc) · 1.91 KB
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AZRMATH.H
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////////////////////////////////////////////////////////////////////////////////
//
// AZRMATH.H
// A collection of math functions useful in 3D rendering.
// (just another library by plash)
//
// Started on June 1, 1997
// Updated on July 25, 1997
//
#ifndef __AZR_MATH_H__
#define __AZR_MATH_H__
extern float identitymtx[4][4];
extern float benzierbais[4][4];
extern float benzierdrvt[4][4];
extern float bsplinebais[4][4];
extern float bsplinedrvt[4][4];
enum AXISES { X_AXIS, Y_AXIS, Z_AXIS };
void mulmatrix_4x4 ( float result[][4], float left[][4], float right[][4] );
void mulrowmatrix_4x4 ( float *result, float *left, float right[][4] );
void mulmatrixcol_4x4 ( float *result, float left[][4], float *right );
void mulrowcol_4x4 ( float result[][4], float *left, float *right );
void mullinearcol_4x4 ( float *pt, float lineararray[][3], float *vcoeff );
void mulrowpatch_4x4 ( float lineararray[][3], float *ucoeff, float patcharray[][4][3] );
void scalematrix_4x4 ( float result[][4], float matrix[][4], float scale );
void copymatrix_4x4 ( float dest[][4], float source[][4] );
void setrotation_4x4 ( float matrix[][4], int axis, float radian );
void settranslation_4x4 ( float matrix[][4], float *translation );
void getranspose_4x4 ( float transpose[][4], float source[][4] );
void crossproduct_3 ( float *result, float *left, float *right );
void getcoeffvector ( float param, float baismatrix[][4], float *coeffvector );
void getweightedpt_2 ( float *coeffvector, float controlpts[][2], float *pt );
void normalize_2 ( float *nrm );
void normalize_3 ( float *nrm );
void getbsplinept_2 ( float param, float controlpts[][2], float *pt );
void getbsplinenrm_2 ( float param, float controlpts[][2], float *nrm );
void getbenzierpatchpt_3 ( float u, float v, float patcharray[][4][3], float *pt );
void getbenzierpatchnrm_3 ( float u, float v, float patcharray[][4][3], float *nrm );
#endif // __AZR_MATH_H__