public function getMatrix33()
{
return ['m11' => $this->getFloat32(), 'm12' => $this->getFloat32(), 'm13' => $this->getFloat32(), 'm21' => $this->getFloat32(), 'm22' => $this->getFloat32(), 'm23' => $this->getFloat32(), 'm31' => $this->getFloat32(), 'm32' => $this->getFloat32(), 'm33' => $this->getFloat32()];
}