ternion</a> *q) {
<a name="l00150"></a>00150     <span class="keyword">const</span> <span class="keywordtype">float</span> len = <a class="code" href="rs__quaternion_8rsh.html#aa810f8857439564e7b3be771f47b40ca">rsQuaternionDot</a>(q, q);
<a name="l00151"></a>00151     <span class="keywordflow">if</span> (len != 1) {
<a name="l00152"></a>00152         <span class="keyword">const</span> <span class="keywordtype">float</span> recipLen = 1.f / <a class="code" href="rs__cl_8rsh.html#a92da0faef80c4d8f66e954c8c169