sect1" title="Description"><a id="description"></a><h2>Description</h2><p><code class="function">glStencilMask</code>
        controls the writing of individual bits in the stencil planes.
        The least significant <em class="replaceable"><code>n</code></em>
        bits of <em class="parameter"><code>mask</code></em>, where
        <em class="replaceable"><code>n</code></em>
        is the number of bits in the stencil buffer, specify a mask.
        Where a 1 appears in the mask, it's possible to writ