## SIVector3.MulByMatrix4InPlace

### Description

Right-multiplies this vector by the matrix m in place: this = this . m

### C# Syntax

    SIVector3.MulByMatrix4InPlace( SIMatrix4 in_pMatrix );

### Scripting Syntax

    SIVector3.MulByMatrix4InPlace( m );

### Parameters

Parameter | Type | Description
--- | --- | ---
m | SIMatrix4 | Operand matrix

### Examples

#### VBScript Example

    dim v1, m1
    ' Create 3D vector.
    set v1 = XSIMath.CreateVector3
    ' Create 4x4 matrix.
    set m1 = XSIMath.CreateMatrix4
    v1.Set 1.0, 2.0, 3.0
    m1.SetIdentity
    v1.MulByMatrix4InPlace m1

### See Also

SIVector3.MulByMatrix3 SIVector3 SIMatrix3 SIMatrix4 SIRotation SITransformation SIQuaternion