VECCrossProduct

C Specification

#include <revolution/mtx.h>

void C_VECCrossProduct ( const Vec* a, const Vec* b, Vec* axb ); void PSVECCrossProduct ( const Vec* a, const Vec* b, Vec* axb ); #define VECCrossProduct C_VECCrossProduct // for debug build #define VECCrossProduct PSVECCrossProduct // for nondebug build

Arguments

`a`	Pointer to first `Vec` for cross product calculation.
`b`	Pointer to second `Vec` for cross product calculation.
`axb`	Pointer to resultant `Vec` ( `a` x `b` ). Acceptable if `axb = a` or `axb = b`.

Return Values

None.

Description

Computes the cross product of two vectors ( a x b ) and places the result in axb. When using this function, note that the order in which vectors are passed as arguments determines the orientation of the orthogonal vector: ( v1 x v2 ) = -( v2 x v1 ).

During a debug build, VECCrossProduct is interpreted as C_VECCrossProduct, which is a normal C language version. During a non-debug build for a Broadway processor, the paired-singles equivalent of this function, PSVECCrossProduct, will be automatically substituted. You can also call C_VECCrossProduct or PSVECCrossProduct explicitly.

Revision History