t</span> _brightness;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;  <span class="keywordtype">float</span> _amplitude;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;  <span class="keywordtype">float</span> _wavelength;</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  <span class="keywordtype">float</span> _frequency;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>