c</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">projection</span><wbr><span class="parameters">(@NonNull <a href="Vector3.html" title="class in icyllis.arc3d.core">Vector3</a>&nbsp;v)</span></div>
<div class="block">Calculate the projection of the vector on the given vector.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>v</code> - the vector to project on</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="rotation(float)">
<h3>rotation</h3>
<div class=