          <td>G: <input id="directionalG" value="0.8" type="text"></td>
                        <td>B: <input id="directionalB" value="0.8" type="text"></td>
                    </tr>
                </tbody>
            </table>

            <p>
            <strong>Ambient light</strong>
            <table>
                <tbody>
                    <tr>
                        <td>Colour</td>
                        <td>R: <input id="ambientR" value="0.2" type="text"></td>
                        <td>G: 