gl_Position.xhtml

    <div class="refentry" id="gl_Position">
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        <h2>Name</h2>
        <p>gl_Position — contains the position of the current vertex</p>
      </div>
      <div class="refsynopsisdiv">
        <h2>Declaration</h2>
        <code class="fieldsynopsis"><span class="modifier">out highp </span><span class="type">vec4 </span><span class="varname">gl_Position </span>;</code>
      </div>
      <div class="refsect1" id="description">
        <h2>Description</h2>
        <p>
            The variable <code class="varname">gl_Position</code> is intended for writing the homogeneous
            vertex position. It can be written at any time during vertexshader execution. This value
            will be used by primitive assembly, clipping, culling, and other fixed functionality
            operations, if present, that operate on primitives after vertex processing has occurred.
            Its value is undefined after the vertex processing stage if the vertex shader executable
            does not write <code class="varname">gl_Position</code>.
        </p>
      </div>
      {$pipelinestall}{$examples}
      <div class="refsect1" id="versions">
        <h2>Version Support</h2>
        <div class="informaltable">
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                <span class="bold"><strong>OpenGL ES Shading Language Version</strong></span>
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                <span class="bold"><strong>Variable Name</strong></span>
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                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>1.00</strong></span>
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                <th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.00</strong></span>
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                <th style="text-align: center; border-bottom: 2px solid ; ">
                <span class="bold"><strong>3.10</strong></span>
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                <td style="text-align: left; border-right: 2px solid ; ">gl_Position</td>
                <td style="text-align: center; border-right: 2px solid ; ">✔</td>
                <td style="text-align: center; border-right: 2px solid ; ">✔</td>
                <td style="text-align: center; ">✔</td>
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        </div>
      </div>
      <div class="refsect1" id="seealso">
        <h2>See Also</h2>
        <p>
            <a class="citerefentry" href="gl_PointSize"><span class="citerefentry"><span class="refentrytitle">gl_PointSize</span></span></a>
        </p>
      </div>
      <div class="refsect1" id="Copyright">
        <h2>Copyright</h2>
        <p>
            Copyright © 2011-2014 Khronos Group.
            This material may be distributed subject to the terms and conditions set forth in
            the Open Publication License, v 1.0, 8 June 1999.
            <a class="link" href="https://opencontent.org/openpub/" target="_top">https://opencontent.org/openpub/</a>.
        </p>
      </div>
    </div>