QRenderStateSet Class

(Qt3DRender::QRenderStateSet)

The QRenderStateSet FrameGraph node offers a way of specifying a set of QRenderState objects to be applied during the execution of a framegraph branch. More...

Header:	#include <QRenderStateSet>
qmake:	QT += 3drender
Since:	Qt 5.5
Instantiated By:	RenderStateSet
Inherits:	Qt3DRender::QFrameGraphNode

• List of all members, including inherited members
• Obsolete members

Public Functions

	QRenderStateSet(Qt3DCore::QNode *parent = nullptr)
void	addRenderState(Qt3DRender::QRenderState *state)
void	removeRenderState(Qt3DRender::QRenderState *state)
QVector<Qt3DRender::QRenderState *>	renderStates() const

• 1 public function inherited from Qt3DRender::QFrameGraphNode
• 13 public functions inherited from Qt3DCore::QNode
• 31 public functions inherited from QObject

Static Public Members

const QMetaObject

staticMetaObject

• 9 static public members inherited from QObject

Protected Functions

QRenderStateSet(Qt3DRender::QRenderStateSetPrivate &dd, Qt3DCore::QNode *parent = nullptr)

• 1 protected function inherited from Qt3DRender::QFrameGraphNode
• 2 protected functions inherited from Qt3DCore::QNode
• 9 protected functions inherited from QObject

Additional Inherited Members

• 3 properties inherited from Qt3DCore::QNode
• 1 property inherited from QObject
• 3 public slots inherited from Qt3DCore::QNode
• 1 public slot inherited from QObject
• 4 signals inherited from Qt3DCore::QNode
• 2 signals inherited from QObject

Detailed Description

The QRenderStateSet FrameGraph node offers a way of specifying a set of QRenderState objects to be applied during the execution of a framegraph branch.

States set on a QRenderStateSet are set globally, contrary to the per-material states that can be set on a QRenderPass. By default, an empty QRenderStateSet will result in all render states being disabled when executed. Adding a QRenderState state explicitly enables that render state at runtime.

The RenderStateSet is enabled when added to the active frame graph:

// using namespace Qt3DRender;

Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();

QRenderSettings *renderSettings = new QRenderSettings();

QViewport *viewport = new QViewport();
QCameraSelector *cameraSelector = new QCameraSelector(viewport);

QClearBuffers *clearBuffers = new QClearBuffers(cameraSelector);
clearBuffers->setBuffers(QClearBuffers::ColorDepthBuffer);

QRenderStateSet *renderStateSet = new QRenderStateSet(cameraSelector);
QCullFace *cullFace = new QCullFace(renderStateSet);
cullFace->setMode(QCullFace::Front);
renderStateSet->addRenderState(cullFace);

renderSettings->setActiveFrameGraph(viewport);

rootEntity->addComponent(renderSettings);

See also QRenderState and QRenderPass.

Member Function Documentation

QRenderStateSet::QRenderStateSet(Qt3DCore::QNode *parent = nullptr)

Default constructs an instance of QRenderStateSet.

[protected] QRenderStateSet::QRenderStateSet(Qt3DRender::QRenderStateSetPrivate &dd, Qt3DCore::QNode *parent = nullptr)

Default constructs an instance of QRenderStateSet.

void QRenderStateSet::addRenderState(Qt3DRender::QRenderState *state)

Adds a new QRenderState state to the QRenderStateSet instance.

Note: Not setting any QRenderState state on a QRenderStateSet instance implies all the render states will be disabled at render time.

void QRenderStateSet::removeRenderState(Qt3DRender::QRenderState *state)

Removes the QRenderState state from the QRenderStateSet instance.

QVector<Qt3DRender::QRenderState *> QRenderStateSet::renderStates() const

Returns the list of QRenderState objects that compose the QRenderStateSet instance.