/* ====================================================================== vecmath.h Header file for the vector math Global class sample plug-in. Ernie Wright 19 Mar 00 Include this header in code that uses the vector math global. See the comments in vecmath.c for details. ====================================================================== */ #ifndef VECMATH_H #define VECMATH_H #include #define LWFVECMATHFUNCS_GLOBAL "LWFVecMathFunctions" typedef float LWFMatrix3[ 3 ][ 3 ]; typedef float LWFMatrix4[ 4 ][ 4 ]; typedef struct st_LWFVecMathFuncs { void ( *initv ) ( LWFVector a, float x, float y, float z ); void ( *initm3 ) ( LWFMatrix3 m, float, float, float, float, float, float, float, float, float ); void ( *initm4 ) ( LWFMatrix4 m, float, float, float, float, float, float, float, float, float, float, float, float, float, float, float, float ); void ( *identity3 ) ( LWFMatrix3 m ); void ( *identity4 ) ( LWFMatrix4 m ); void ( *copyv ) ( LWFVector to, LWFVector from ); void ( *copym3 ) ( LWFMatrix3 to, LWFMatrix3 from ); void ( *copym4 ) ( LWFMatrix4 to, LWFMatrix4 from ); float ( *dot ) ( LWFVector a, LWFVector b ); float ( *lenSquared )( LWFVector a ); float ( *len ) ( LWFVector a ); void ( *scalev ) ( LWFVector a, float s ); void ( *setlen ) ( LWFVector a, float d ); void ( *normalize ) ( LWFVector a ); void ( *neg ) ( LWFVector a ); void ( *add ) ( LWFVector a, LWFVector b, LWFVector c ); void ( *sub ) ( LWFVector a, LWFVector b, LWFVector c ); void ( *mul ) ( LWFVector a, LWFVector b, LWFVector c ); void ( *lerp ) ( LWFVector a, LWFVector b, float t, LWFVector c ); void ( *combine ) ( LWFVector a, LWFVector b, LWFVector c, float sa, float sb ); void ( *cross ) ( LWFVector a, LWFVector b, LWFVector c ); void ( *polynorm ) ( LWFVector v1, LWFVector v2, LWFVector vlast, LWFVector norm ); float ( *dist ) ( LWFVector a, LWFVector b ); float ( *angle ) ( LWFVector a, LWFVector b ); void ( *vec_hp ) ( LWFVector a, float *h, float *p ); void ( *hp_vec ) ( float h, float p, LWFVector a ); void ( *transform ) ( LWFVector a, LWFMatrix3 m, LWFVector b ); void ( *transformp )( LWFVector a, LWFMatrix4 m, LWFVector b ); void ( *matmul3 ) ( LWFMatrix3 a, LWFMatrix3 b, LWFMatrix3 c ); void ( *matmul4 ) ( LWFMatrix4 a, LWFMatrix4 b, LWFMatrix4 c ); void ( *scalem4 ) ( LWFMatrix4 a, float s ); void ( *scalem3 ) ( LWFMatrix3 a, float s ); float ( *det2 ) ( float a, float b, float c, float d ); float ( *det3 ) ( LWFMatrix3 m ); float ( *det4 ) ( LWFMatrix4 m ); void ( *adjoint3 ) ( LWFMatrix3 m, LWFMatrix3 adj ); void ( *adjoint4 ) ( LWFMatrix4 m, LWFMatrix4 adj ); void ( *inverse3 ) ( LWFMatrix3 m, LWFMatrix3 inv ); void ( *inverse4 ) ( LWFMatrix4 m, LWFMatrix4 inv ); void ( *mat4_quat ) ( LWFMatrix4 m, float q[ 4 ] ); void ( *quat_mat4 ) ( float q[ 4 ], LWFMatrix4 m ); void ( *slerp ) ( float p[ 4 ], float q[ 4 ], float t, float qt[ 4 ] ); } LWFVecMathFuncs; #define LWDVECMATHFUNCS_GLOBAL "LWDVecMathFunctions" typedef double LWDMatrix3[ 3 ][ 3 ]; typedef double LWDMatrix4[ 4 ][ 4 ]; typedef struct st_LWDVecMathFuncs { void ( *initv ) ( LWDVector a, double x, double y, double z ); void ( *initm3 ) ( LWDMatrix3 m, double, double, double, double, double, double, double, double, double ); void ( *initm4 ) ( LWDMatrix4 m, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double ); void ( *identity3 ) ( LWDMatrix3 m ); void ( *identity4 ) ( LWDMatrix4 m ); void ( *copyv ) ( LWDVector to, LWDVector from ); void ( *copym3 ) ( LWDMatrix3 to, LWDMatrix3 from ); void ( *copym4 ) ( LWDMatrix4 to, LWDMatrix4 from ); double ( *dot ) ( LWDVector a, LWDVector b ); double ( *lenSquared )( LWDVector a ); double ( *len ) ( LWDVector a ); void ( *scalev ) ( LWDVector a, double s ); void ( *setlen ) ( LWDVector a, double d ); void ( *normalize ) ( LWDVector a ); void ( *neg ) ( LWDVector a ); void ( *add ) ( LWDVector a, LWDVector b, LWDVector c ); void ( *sub ) ( LWDVector a, LWDVector b, LWDVector c ); void ( *mul ) ( LWDVector a, LWDVector b, LWDVector c ); void ( *lerp ) ( LWDVector a, LWDVector b, double t, LWDVector c ); void ( *combine ) ( LWDVector a, LWDVector b, LWDVector c, double sa, double sb ); void ( *cross ) ( LWDVector a, LWDVector b, LWDVector c ); void ( *polynorm ) ( LWDVector v1, LWDVector v2, LWDVector vlast, LWDVector norm ); double ( *dist ) ( LWDVector a, LWDVector b ); double ( *angle ) ( LWDVector a, LWDVector b ); void ( *vec_hp ) ( LWDVector a, double *h, double *p ); void ( *hp_vec ) ( double h, double p, LWDVector a ); void ( *transform ) ( LWDVector a, LWDMatrix3 m, LWDVector b ); void ( *transformp )( LWDVector a, LWDMatrix4 m, LWDVector b ); void ( *matmul3 ) ( LWDMatrix3 a, LWDMatrix3 b, LWDMatrix3 c ); void ( *matmul4 ) ( LWDMatrix4 a, LWDMatrix4 b, LWDMatrix4 c ); void ( *scalem4 ) ( LWDMatrix4 a, double s ); void ( *scalem3 ) ( LWDMatrix3 a, double s ); double ( *det2 ) ( double a, double b, double c, double d ); double ( *det3 ) ( LWDMatrix3 m ); double ( *det4 ) ( LWDMatrix4 m ); void ( *adjoint3 ) ( LWDMatrix3 m, LWDMatrix3 adj ); void ( *adjoint4 ) ( LWDMatrix4 m, LWDMatrix4 adj ); void ( *inverse3 ) ( LWDMatrix3 m, LWDMatrix3 inv ); void ( *inverse4 ) ( LWDMatrix4 m, LWDMatrix4 inv ); void ( *mat4_quat ) ( LWDMatrix4 m, double q[ 4 ] ); void ( *quat_mat4 ) ( double q[ 4 ], LWDMatrix4 m ); void ( *slerp ) ( double p[ 4 ], double q[ 4 ], double t, double qt[ 4 ] ); } LWDVecMathFuncs; #ifndef PI #define PI 3.14159265358979323846264338328 #define HALFPI 1.57079632679489661923132169164 #endif #define RADIANS( deg ) ((deg) * PI / 180.0) #define DEGREES( rad ) ((rad) * 180.0 / PI) #endif