## SIVector3.MulByMatrix4

### Description

Right-multiplies the vector v by the matrix m and stores the result in this vector: this = v . m

### C# Syntax

    SIVector3.MulByMatrix4( SIVector3 in_pVector, SIMatrix4 in_pMatrix );

### Scripting Syntax

    SIVector3.MulByMatrix4( v, m );

### Parameters

Parameter | Type | Description
--- | --- | ---
v | SIVector3 | Operand vector
m | SIMatrix4 | Operand matrix

### Examples

#### VBScript Example

    dim v1, v2, m1

    ' Create 3D vectors.

    set v1 = XSIMath.CreateVector3

    set v2 = XSIMath.CreateVector3

    ' Create 4x4 matrix.

    set m1 = XSIMath.CreateMatrix4

    v1.Set 1.0, 2.0, 3.0

    m1.SetIdentity

    v2.MulByMatrix4 v1, m1

### See Also

SIVector3.MulByMatrix4InPlace SIVector3 SIMatrix3 SIMatrix4 SIRotation SITransformation SIQuaternion