Mul M * xyzw

 Name

Mul M * xyzw - multiply a matrix by a column vector.

Synopsis

vector4 mul(matrix M, vector4 xyzw);
vector4 mul(matrix M, vector3 xyzw);
vector4 mul(matrix M, vector2 xyzw);
vector4 mul(matrix M, vector1 xyzw);

Parameters

M

Matrix

xyzw

Vector

Description

Returns the vector result of multiplying a matrix M by a column vector v.

The following are algebrically equal (if not necessarily numerically equal):

mul(M,xyzw) == mul(xyzw, tranpose(M))
mul(xyzw,M) == mul(tranpose(M), xyzw)