me">gl_FragCoord</code> is redeclared in any fragment shader in a program, it must be redeclared
            in all fragment shaders in that program that have static use of <code class="varname">gl_FragCoord</code>. Redeclaring
            <code class="varname">gl_FragCoord</code> with any accepted qualifier affects only <code class="varname">gl_FragCoord.x</code>
            and <code class="varname">gl_FragCoord.y</code>. It has no affect on rasterization, transformation or any other part
            of t