><a name="spec"></a><h3 class="anchor"><code><a href="#spec"><span class="identifier">spec</span></a>:{signature:<a class="type" title="String - The basic String class." href="../String.html">String</a>, instances:<a class="type" title="Array" href="../Array.html">Array</a>&lt;<a class="type" title="hxsl.ShaderInstanceDesc" href="../hxsl/ShaderInstanceDesc.html">ShaderInstanceDesc</a>&gt;}</code></h3><div class="doc"><p></p></div></div><div class="field "><a name="vertex"></a><h3 class="anchor"><code><a hre