/// <summary>
/// Post multiplies a rotation matrix defined by
/// the angle degAng and the rotation axis
/// </summary>
public void Rotate(float degAng, SLVec3f axis)
{
SLMat4f R = new SLMat4f();
R.Rotation(degAng, axis);
Multiply(R);
}
/// <summary>
/// Post multiplies a rotation matrix defined by
/// the angle degAng and the rotation axis [axisx,axisy,axisz]
/// </summary>
public void Rotate(float degAng, float axisx, float axisy, float axisz)
{
SLMat4f R = new SLMat4f();
R.Rotation(degAng, axisx, axisy, axisz);
Multiply(R);
}