</a></small></h4>    <span class="label label-meta label-meta-directlyUsed" title="Marks types that are directly referenced by non-extern code.">@:directlyUsed</span><span class="label label-meta label-meta-src" title="">@:src({
	@param var colorKey:Vec4;
	var textureColor:Vec4;
	function fragment() {
		var cdiff = textureColor - colorKey;
		if (cdiff.dot(cdiff) &lt; 0.00001) discard;
	};
})</span><span class="label label-meta label-meta-build" title="Builds a class or enum from a macro.">@:build(hxsl.Macro