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<td >Qt 5.12</td><td ><a href="qt3d-index.html">Qt 3D</a></td><td ><a href="qt3d-cpp.html">C++ Classes</a></td><td >QLayer</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qt3d-index.html">Qt 5.12.2 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#signals">Signals</a></li>
<li class="level1"><a href="#static-public-members">Static Public Members</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QLayer Class</h1>
<span class="small-subtitle">(<a href="qt3drender-qlayer.html">Qt3DRender::QLayer</a>)<br/></span>
<!-- $$$QLayer-brief -->
<p>The <a href="qt3drender-qlayer.html">QLayer</a> class provides a way of filtering which entities will be rendered. <a href="#details">More...</a></p>
<!-- @@@QLayer -->
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QLayer&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += 3drender</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign">  Qt 5.5</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Instantiated By:</td><td class="memItemRight bottomAlign"> <a href="qml-qt3d-render-layer.html">Layer</a></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qt3dcore-qcomponent.html">Qt3DCore::QComponent</a></td></tr></table></div><ul>
<li><a href="qt3drender-qlayer-members.html">List of all members, including inherited members</a></li>
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<a name="properties"></a>
<h2 id="properties">Properties</h2>
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<li class="fn"><b><a href="qt3drender-qlayer.html#recursive-prop">recursive</a></b> : bool</li>
</ul>
<ul>
<li class="fn">1 property inherited from <a href="qt3dcore-qcomponent.html#properties">Qt3DCore::QComponent</a></li>
<li class="fn">3 properties inherited from <a href="qt3dcore-qnode.html#properties">Qt3DCore::QNode</a></li>
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<h2 id="public-functions">Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qlayer.html#QLayer">QLayer</a></b>(Qt3DCore::QNode *<i>parent</i> = nullptr)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qlayer.html#recursive-prop">recursive</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qlayer.html#recursive-prop">setRecursive</a></b>(bool <i>recursive</i>)</td></tr>
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<li class="fn">2 public functions inherited from <a href="qt3dcore-qcomponent.html#public-functions">Qt3DCore::QComponent</a></li>
<li class="fn">13 public functions inherited from <a href="qt3dcore-qnode.html#public-functions">Qt3DCore::QNode</a></li>
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<a name="signals"></a>
<h2 id="signals">Signals</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qlayer.html#recursive-prop">recursiveChanged</a></b>()</td></tr>
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<li class="fn">3 signals inherited from <a href="qt3dcore-qcomponent.html#signals">Qt3DCore::QComponent</a></li>
<li class="fn">4 signals inherited from <a href="qt3dcore-qnode.html#signals">Qt3DCore::QNode</a></li>
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<h2 id="static-public-members">Static Public Members</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> const QMetaObject </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qlayer.html#staticMetaObject-var">staticMetaObject</a></b></td></tr>
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<h3>Additional Inherited Members</h3>
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<li class="fn">1 public slot inherited from <a href="qt3dcore-qcomponent.html#public-slots">Qt3DCore::QComponent</a></li>
<li class="fn">3 public slots inherited from <a href="qt3dcore-qnode.html#public-slots">Qt3DCore::QNode</a></li>
<li class="fn">2 protected functions inherited from <a href="qt3dcore-qnode.html#protected-functions">Qt3DCore::QNode</a></li>
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<a name="details"></a>
<!-- $$$QLayer-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qt3drender-qlayer.html">QLayer</a> class provides a way of filtering which entities will be rendered.</p>
<p><a href="qt3drender-qlayer.html">Qt3DRender::QLayer</a> works in conjunction with the <a href="qt3drender-qlayerfilter.html">Qt3DRender::QLayerFilter</a> in the FrameGraph.</p>
<p>A <a href="qt3drender-qlayer.html">QLayer</a> can be applied to a subtree of entities by setting the recursive property to true.</p>
<pre class="cpp">

   <span class="preprocessor">#include &lt;Qt3DCore/QEntity&gt;</span>
   <span class="preprocessor">#include &lt;Qt3DRender/QGeometryRenderer&gt;</span>
   <span class="preprocessor">#include &lt;Qt3DRender/QLayer&gt;</span>
   <span class="preprocessor">#include &lt;Qt3DRender/QLayerFilter&gt;</span>
   <span class="preprocessor">#include &lt;Qt3DRender/QViewport&gt;</span>

  <span class="comment">// Scene</span>
  <span class="type">Qt3DCore</span><span class="operator">::</span><span class="type">QEntity</span> <span class="operator">*</span>rootEntity <span class="operator">=</span> <span class="keyword">new</span> <span class="type">Qt3DCore</span><span class="operator">::</span><span class="type">Qt3DCore</span><span class="operator">::</span><span class="type">QEntity</span>;

  <span class="type">Qt3DCore</span><span class="operator">::</span><span class="type">QEntity</span> <span class="operator">*</span>renderableEntity <span class="operator">=</span> <span class="keyword">new</span> <span class="type">Qt3DCore</span><span class="operator">::</span><span class="type">Qt3DCore</span><span class="operator">::</span><span class="type">QEntity</span>(rootEntity);
  <span class="type">Qt3DRender</span><span class="operator">::</span><span class="type"><a href="qt3drender-qgeometryrenderer.html">QGeometryRenderer</a></span> <span class="operator">*</span>geometryRenderer <span class="operator">=</span> <span class="keyword">new</span> <span class="type">Qt3DCore</span><span class="operator">::</span><span class="type"><a href="qt3drender-qgeometryrenderer.html">QGeometryRenderer</a></span>(renderableEntity);
  <span class="type">Qt3DRender</span><span class="operator">::</span><span class="type"><a href="qt3drender-qlayer.html#QLayer">QLayer</a></span> <span class="operator">*</span>layer1 <span class="operator">=</span> <span class="keyword">new</span> <span class="type">Qt3DCore</span><span class="operator">::</span><span class="type"><a href="qt3drender-qlayer.html#QLayer">QLayer</a></span>(renderableEntity);
  layer1<span class="operator">-</span><span class="operator">&gt;</span>setRecursive(<span class="keyword">true</span>);
  renderableEntity<span class="operator">-</span><span class="operator">&gt;</span>addComponent(geometryRenderer);
  renderableEntity<span class="operator">-</span><span class="operator">&gt;</span>addComponent(layer1);

  <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>

  <span class="comment">// FrameGraph</span>
  <span class="type">Qt3DRender</span><span class="operator">::</span><span class="type"><a href="qt3drender-qviewport.html">QViewport</a></span> <span class="operator">*</span>viewport <span class="operator">=</span> <span class="keyword">new</span> <span class="type">Qt3DRender</span><span class="operator">::</span><span class="type"><a href="qt3drender-qviewport.html">QViewport</a></span>;
  <span class="type">Qt3DRender</span><span class="operator">::</span><span class="type"><a href="qt3drender-qlayerfilter.html">QLayerFilter</a></span> <span class="operator">*</span>layerFilter <span class="operator">=</span> <span class="keyword">new</span> <span class="type">Qt3DRender</span><span class="operator">::</span><span class="type"><a href="qt3drender-qlayerfilter.html">QLayerFilter</a></span>(viewport);
  layerFilter<span class="operator">-</span><span class="operator">&gt;</span>addLayer(layer1);

  <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>

</pre>
</div>
<p><b>See also </b><a href="qt3drender-qlayerfilter.html">Qt3DRender::QLayerFilter</a>.</p>
<!-- @@@QLayer -->
<div class="prop">
<h2>Property Documentation</h2>
<!-- $$$recursive-prop$$$recursive$$$setRecursivebool$$$recursiveChanged -->
<h3 class="fn" id="recursive-prop"><a name="recursive-prop"></a><span class="name">recursive</span> : <span class="type">bool</span></h3>
<p>Specifies if the layer is also applied to the entity subtree.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><span class="name"><b>recursive</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setRecursive</b></span>(bool <i>recursive</i>)</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>recursiveChanged</b></span>()</td></tr>
</table></div>
<!-- @@@recursive -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QLayer[overload1]$$$QLayerQt3DCore::QNode* -->
<h3 class="fn" id="QLayer"><a name="QLayer"></a>QLayer::<span class="name">QLayer</span>(<span class="type"><a href="qt3dcore-qnode.html">Qt3DCore::QNode</a></span> *<i>parent</i> = nullptr)</h3>
<p>Default constructs an instance of QLayer.</p><!-- @@@QLayer -->
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