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<td >Qt 5.9</td><td ><a href="qt3d-index.html">Qt 3D</a></td><td ><a href="qt3d-cpp.html">C++ Classes</a></td><td >QEffect</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#protected-functions">Protected Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QEffect Class</h1>
<span class="small-subtitle">(<a href="qt3drender-qeffect.html">Qt3DRender::QEffect</a>)<br/></span>
<!-- $$$QEffect-brief -->
<p>The base class for effects in a Qt 3D scene. <a href="#details">More...</a></p>
<!-- @@@QEffect -->
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QEffect&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 5.7</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Instantiated By:</td><td class="memItemRight bottomAlign"> <a href="qml-qt3d-render-effect.html">Effect</a></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qt3dcore-qnode.html">Qt3DCore::QNode</a></td></tr></table></div><ul>
<li><a href="qt3drender-qeffect-members.html">List of all members, including inherited members</a></li>
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<a name="public-functions"></a>
<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-qeffect.html#QEffect">QEffect</a></b>(Qt3DCore::QNode *<i>parent</i> = nullptr)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qeffect.html#dtor.QEffect">~QEffect</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qeffect.html#addParameter">addParameter</a></b>(QParameter *<i>parameter</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qeffect.html#addTechnique">addTechnique</a></b>(QTechnique *<i>t</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QVector&lt;QParameter *&gt; </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qeffect.html#parameters">parameters</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qeffect.html#removeParameter">removeParameter</a></b>(QParameter *<i>parameter</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qeffect.html#removeTechnique">removeTechnique</a></b>(QTechnique *<i>t</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QVector&lt;QTechnique *&gt; </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qeffect.html#techniques">techniques</a></b>() const</td></tr>
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<li class="fn">11 public functions inherited from <a href="qt3dcore-qnode.html#public-functions">Qt3DCore::QNode</a></li>
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<h2 id="protected-functions">Protected Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qt3drender-qeffect.html#QEffect-1">QEffect</a></b>(QEffectPrivate &amp;<i>dd</i>, Qt3DCore::QNode *<i>parent</i> = nullptr)</td></tr>
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<li class="fn">2 protected functions inherited from <a href="qt3dcore-qnode.html#protected-functions">Qt3DCore::QNode</a></li>
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<h3>Additional Inherited Members</h3>
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<li class="fn">3 properties inherited from <a href="qt3dcore-qnode.html#properties">Qt3DCore::QNode</a></li>
<li class="fn">3 public slots inherited from <a href="qt3dcore-qnode.html#public-slots">Qt3DCore::QNode</a></li>
<li class="fn">4 signals inherited from <a href="qt3dcore-qnode.html#signals">Qt3DCore::QNode</a></li>
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<a name="details"></a>
<!-- $$$QEffect-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The base class for effects in a Qt 3D scene.</p>
<p>The <a href="qt3drender-qeffect.html">QEffect</a> class combines a set of techniques and parameters used by those techniques to produce a rendering effect for a material.</p>
<p>An <a href="qt3drender-qeffect.html">QEffect</a> instance should be shared among several <a href="qt3drender-qmaterial.html">QMaterial</a> instances when possible.</p>
<pre class="cpp">

  <span class="type"><a href="qt3drender-qeffect.html#QEffect">QEffect</a></span> <span class="operator">*</span>effect <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qt3drender-qeffect.html#QEffect">QEffect</a></span>();

  <span class="comment">// Create technique, render pass and shader</span>
  <span class="type"><a href="qt3drender-qtechnique.html">QTechnique</a></span> <span class="operator">*</span>gl3Technique <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qt3drender-qtechnique.html">QTechnique</a></span>();
  <span class="type"><a href="qt3drender-qrenderpass.html">QRenderPass</a></span> <span class="operator">*</span>gl3Pass <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qt3drender-qrenderpass.html">QRenderPass</a></span>();
  <span class="type"><a href="qt3drender-qshaderprogram.html">QShaderProgram</a></span> <span class="operator">*</span>glShader <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qt3drender-qshaderprogram.html">QShaderProgram</a></span>();

  <span class="comment">// Set the shader on the render pass</span>
  gl3Pass<span class="operator">-</span><span class="operator">&gt;</span>setShaderProgram(glShader);

  <span class="comment">// Add the pass to the technique</span>
  gl3Technique<span class="operator">-</span><span class="operator">&gt;</span>addRenderPass(gl3Pass);

  <span class="comment">// Set the targeted GL version for the technique</span>
  gl3Technique<span class="operator">-</span><span class="operator">&gt;</span>graphicsApiFilter()<span class="operator">-</span><span class="operator">&gt;</span>setApi(<span class="type"><a href="qt3drender-qgraphicsapifilter.html">QGraphicsApiFilter</a></span><span class="operator">::</span>OpenGL);
  gl3Technique<span class="operator">-</span><span class="operator">&gt;</span>graphicsApiFilter()<span class="operator">-</span><span class="operator">&gt;</span>setMajorVersion(<span class="number">3</span>);
  gl3Technique<span class="operator">-</span><span class="operator">&gt;</span>graphicsApiFilter()<span class="operator">-</span><span class="operator">&gt;</span>setMinorVersion(<span class="number">1</span>);
  gl3Technique<span class="operator">-</span><span class="operator">&gt;</span>graphicsApiFilter()<span class="operator">-</span><span class="operator">&gt;</span>setProfile(<span class="type"><a href="qt3drender-qgraphicsapifilter.html">QGraphicsApiFilter</a></span><span class="operator">::</span>CoreProfile);

  <span class="comment">// Add the technique to the effect</span>
  effect<span class="operator">-</span><span class="operator">&gt;</span>addTechnique(gl3Technique);

</pre>
<p>A <a href="qt3drender-qparameter.html">QParameter</a> defined on an Effect is overridden by a <a href="qt3drender-qparameter.html">QParameter</a> (of the same name) defined in a <a href="qt3drender-qmaterial.html">QMaterial</a>, <a href="qt3drender-qtechniquefilter.html">QTechniqueFilter</a>, <a href="qt3drender-qrenderpassfilter.html">QRenderPassFilter</a>.</p>
</div>
<p><b>See also </b><a href="qt3drender-qmaterial.html">QMaterial</a>, <a href="qt3drender-qtechnique.html">QTechnique</a>, and <a href="qt3drender-qparameter.html">QParameter</a>.</p>
<!-- @@@QEffect -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QEffect[overload1]$$$QEffectQt3DCore::QNode* -->
<h3 class="fn" id="QEffect"><a name="QEffect"></a>QEffect::<span class="name">QEffect</span>(<span class="type">Qt3DCore::QNode</span> *<i>parent</i> = nullptr)</h3>
<p>Default constructs an instance of QEffect.</p><!-- @@@QEffect -->
<!-- $$$QEffect$$$QEffectQEffectPrivate&Qt3DCore::QNode* -->
<h3 class="fn" id="QEffect-1"><a name="QEffect-1"></a><code>[protected] </code>QEffect::<span class="name">QEffect</span>(<span class="type">QEffectPrivate</span> &amp;<i>dd</i>, <span class="type">Qt3DCore::QNode</span> *<i>parent</i> = nullptr)</h3>
<p>Copy constructor.</p><!-- @@@QEffect -->
<!-- $$$~QEffect[overload1]$$$~QEffect -->
<h3 class="fn" id="dtor.QEffect"><a name="dtor.QEffect"></a>QEffect::<span class="name">~QEffect</span>()</h3>
<p>Destroys the instance of QEffect.</p><!-- @@@~QEffect -->
<!-- $$$addParameter[overload1]$$$addParameterQParameter* -->
<h3 class="fn" id="addParameter"><a name="addParameter"></a><span class="type">void</span> QEffect::<span class="name">addParameter</span>(<span class="type"><a href="qt3drender-qparameter.html">QParameter</a></span> *<i>parameter</i>)</h3>
<p>Adds <i>parameter</i> to the effect. It sends a QPropertyNodeAddedChange to the backend. The <i>parameter</i> will be used to set a corresponding uniform value in the shader used by this effect.</p>
<!-- @@@addParameter -->
<!-- $$$addTechnique[overload1]$$$addTechniqueQTechnique* -->
<h3 class="fn" id="addTechnique"><a name="addTechnique"></a><span class="type">void</span> QEffect::<span class="name">addTechnique</span>(<span class="type"><a href="qt3drender-qtechnique.html">QTechnique</a></span> *<i>t</i>)</h3>
<p>Adds a new technique <i>t</i> to the effect. It sends a QPropertyNodeAddedChange to the backend.</p>
<!-- @@@addTechnique -->
<!-- $$$parameters[overload1]$$$parameters -->
<h3 class="fn" id="parameters"><a name="parameters"></a><span class="type">QVector</span>&lt;<span class="type"><a href="qt3drender-qparameter.html">QParameter</a></span> *&gt; QEffect::<span class="name">parameters</span>() const</h3>
<p>Returns the list of parameters used by the effect.</p>
<!-- @@@parameters -->
<!-- $$$removeParameter[overload1]$$$removeParameterQParameter* -->
<h3 class="fn" id="removeParameter"><a name="removeParameter"></a><span class="type">void</span> QEffect::<span class="name">removeParameter</span>(<span class="type"><a href="qt3drender-qparameter.html">QParameter</a></span> *<i>parameter</i>)</h3>
<p>Removes a parameter <i>parameter</i> from the effect.</p>
<!-- @@@removeParameter -->
<!-- $$$removeTechnique[overload1]$$$removeTechniqueQTechnique* -->
<h3 class="fn" id="removeTechnique"><a name="removeTechnique"></a><span class="type">void</span> QEffect::<span class="name">removeTechnique</span>(<span class="type"><a href="qt3drender-qtechnique.html">QTechnique</a></span> *<i>t</i>)</h3>
<p>Removes a technique <i>t</i> from the effect.</p>
<!-- @@@removeTechnique -->
<!-- $$$techniques[overload1]$$$techniques -->
<h3 class="fn" id="techniques"><a name="techniques"></a><span class="type">QVector</span>&lt;<span class="type"><a href="qt3drender-qtechnique.html">QTechnique</a></span> *&gt; QEffect::<span class="name">techniques</span>() const</h3>
<p>Returns the list of techniques used by the effect.</p>
<!-- @@@techniques -->
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