QEffect Class▲
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Header: QEffect
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Since: Qt 5.7
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qmake: QT += 3drender
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Inherited By:
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Instantiated By: qml-qt3d-render-effect.xml
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Inherits: Qt3DCore::QNode
Detailed Description▲
The QEffect class combines a set of techniques and parameters used by those techniques to produce a rendering effect for a material.
An QEffect instance should be shared among several QMaterial instances when possible.
QEffect *effect = new QEffect();
// Create technique, render pass and shader
QTechnique *gl3Technique = new QTechnique();
QRenderPass *gl3Pass = new QRenderPass();
QShaderProgram *glShader = new QShaderProgram();
// Set the shader on the render pass
gl3Pass->setShaderProgram(glShader);
// Add the pass to the technique
gl3Technique->addRenderPass(gl3Pass);
// Set the targeted GL version for the technique
gl3Technique->graphicsApiFilter()->setApi(QGraphicsApiFilter::OpenGL);
gl3Technique->graphicsApiFilter()->setMajorVersion(3);
gl3Technique->graphicsApiFilter()->setMinorVersion(1);
gl3Technique->graphicsApiFilter()->setProfile(QGraphicsApiFilter::CoreProfile);
// Add the technique to the effect
effect->addTechnique(gl3Technique);A QParameter defined on an Effect is overridden by a QParameter (of the same name) defined in a QMaterial, QTechniqueFilter, QRenderPassFilter.
See Also▲
See also QMaterial, QTechnique, QParameter
Member Function Documentation▲
void QEffect::addParameter(Qt3DRender::QParameter *parameter)▲
Adds parameter to the effect. It sends a QPropertyNodeAddedChange to the backend. The parameter will be used to set a corresponding uniform value in the shader used by this effect.
void QEffect::addTechnique(Qt3DRender::QTechnique *t)▲
Adds a new technique t to the effect. It sends a QPropertyNodeAddedChange to the backend.
QVector<Qt3DRender::QParameter *> QEffect::parameters() const▲
Returns the list of parameters used by the effect.
void QEffect::removeParameter(Qt3DRender::QParameter *parameter)▲
Removes a parameter parameter from the effect.
void QEffect::removeTechnique(Qt3DRender::QTechnique *t)▲
Removes a technique t from the effect.
QVector<Qt3DRender::QTechnique *> QEffect::techniques() const▲
Returns the list of techniques used by the effect.