MTXMultVecSR

C Specification

#include <revolution/mtx.h>

void C_MTXMultVecSR ( const Mtx m, const Vec* src, Vec* dst ); void PSMTXMultVecSR ( const Mtx m, const Vec* src, Vec* dst ); #define MTXMultVecSR C_MTXMultVecSR // for debug build #define MTXMultVecSR PSMTXMultVecSR // for nondebug build

Arguments

`m`	Source matrix for multiply. `m` is unaffected by this function. `m` may be either an `Mtx` or an `MtxPtr`.
`src`	Pointer to source `Vec`, the source vector to be multiplied. `src` may also be a pointer to a `Point3d`.
`dst`	Pointer to the resulting `Vec`, the result of the (`m` _3x3 x `src`) multiplication. `dst` may also be a pointer to a `Point3d`. `src` can be the same as `dst`.

Return Values

None.

Description

Multiplies a 3D vector or 3D point on the left with a 3x3 sub-matrix (Scale and Rotate component of 3x4 matrix m).

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

	\| m00	m01	m02	m03 \|			\| m00	m01	m02 \|
When `m` =	\| m10	m11	m12	m13 \|	,	`dst` =	\| m10	m11	m12 \|	x `src`.
	\| m20	m21	m22	m23 \|			\| m20	m21	m22 \|

Revision History