QgsOffscreen3DEngine Class Reference

Off-screen 3D engine implementation. More...

#include <qgsoffscreen3dengine.h>

Inheritance diagram for QgsOffscreen3DEngine:

Public Member Functions
	QgsOffscreen3DEngine ()
	~QgsOffscreen3DEngine () override
Qt3DRender::QCamera *	camera () override
	Returns pointer to the engine's camera entity.
Qt3DRender::QRenderSettings *	renderSettings () override
	Returns access to the engine's render settings (the frame graph can be accessed from here)
void	setClearColor (const QColor &color) override
	Sets background color of the scene.
void	setFrustumCullingEnabled (bool enabled) override
	Sets whether frustum culling is enabled (this should make rendering faster by not rendering entities outside of camera's view)
void	setRootEntity (Qt3DCore::QEntity *root) override
	Sets root entity of the 3D scene.
void	setSize (QSize s) override
	Sets the size of the rendering area (in pixels)
QSize	size () const override
	Returns size of the engine's rendering area in pixels.
QSurface *	surface () const override
	Returns the surface of the engine.
Public Member Functions inherited from QgsAbstract3DEngine
	QgsAbstract3DEngine (QObject *parent=nullptr)
	Constructor for QgsAbstract3DEngine with the specified parent object.
QString	dumpFrameGraph () const
	Dump frame graph as string.
void	dumpFrameGraphToConsole () const
	Dump the current frame graph and scene graph to the console.
QString	dumpSceneGraph () const
	Dump scene graph as string.
QgsFrameGraph *	frameGraph ()
	Returns the shadow rendering frame graph object used to render the scene.
void	requestCaptureImage ()
	Starts a request for an image rendered by the engine.
void	requestDepthBufferCapture ()
	Starts a request for an image containing the depth buffer data of the engine.

Additional Inherited Members
Signals inherited from QgsAbstract3DEngine
void	depthBufferCaptured (const QImage &image)
	Emitted after a call to requestDepthBufferCapture() to return the captured depth buffer.
void	imageCaptured (const QImage &image)
	Emitted after a call to requestCaptureImage() to return the captured image.
void	sizeChanged ()
	Emitted after a call to setSize()
Protected Attributes inherited from QgsAbstract3DEngine
QgsFrameGraph *	mFrameGraph = nullptr

Detailed Description

Off-screen 3D engine implementation.

It is useful for recording rendered 3D scenes of arbitrary size.

Note

While the on-screen 3D engine also allows capturing of images, its limitation is that the captured images are of the size of the on-screen window.

Not available in Python bindings

Since

QGIS 3.4

Definition at line 63 of file qgsoffscreen3dengine.h.

Constructor & Destructor Documentation

QgsOffscreen3DEngine()

QgsOffscreen3DEngine::QgsOffscreen3DEngine

(

)

Definition at line 42 of file qgsoffscreen3dengine.cpp.

~QgsOffscreen3DEngine()

QgsOffscreen3DEngine::~QgsOffscreen3DEngine ( )

override

Definition at line 116 of file qgsoffscreen3dengine.cpp.

Member Function Documentation

camera()

Qt3DRender::QCamera * QgsOffscreen3DEngine::camera ( )

overridevirtual

Returns pointer to the engine's camera entity.

Implements QgsAbstract3DEngine.

Definition at line 161 of file qgsoffscreen3dengine.cpp.

renderSettings()

Qt3DRender::QRenderSettings * QgsOffscreen3DEngine::renderSettings ( )

overridevirtual

Returns access to the engine's render settings (the frame graph can be accessed from here)

Implements QgsAbstract3DEngine.

Definition at line 156 of file qgsoffscreen3dengine.cpp.

setClearColor()

void QgsOffscreen3DEngine::setClearColor ( const QColor &  color )

overridevirtual

Sets background color of the scene.

Implements QgsAbstract3DEngine.

Definition at line 131 of file qgsoffscreen3dengine.cpp.

setFrustumCullingEnabled()

void QgsOffscreen3DEngine::setFrustumCullingEnabled ( bool  enabled )

overridevirtual

Sets whether frustum culling is enabled (this should make rendering faster by not rendering entities outside of camera's view)

Implements QgsAbstract3DEngine.

Definition at line 136 of file qgsoffscreen3dengine.cpp.

setRootEntity()

void QgsOffscreen3DEngine::setRootEntity ( Qt3DCore::QEntity *  root )

overridevirtual

Sets root entity of the 3D scene.

Implements QgsAbstract3DEngine.

Definition at line 141 of file qgsoffscreen3dengine.cpp.

setSize()

void QgsOffscreen3DEngine::setSize ( QSize  s )

overridevirtual

Sets the size of the rendering area (in pixels)

Implements QgsAbstract3DEngine.

Definition at line 122 of file qgsoffscreen3dengine.cpp.

size()

QSize QgsOffscreen3DEngine::size ( ) const

overridevirtual

Returns size of the engine's rendering area in pixels.

Implements QgsAbstract3DEngine.

Definition at line 166 of file qgsoffscreen3dengine.cpp.

surface()

QSurface * QgsOffscreen3DEngine::surface ( ) const

overridevirtual

Returns the surface of the engine.

Since

QGIS 3.14

Implements QgsAbstract3DEngine.

Definition at line 171 of file qgsoffscreen3dengine.cpp.

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The documentation for this class was generated from the following files:

• /build/qgis-3.99.0+git20250718+f78f5286a64+99sid/src/3d/qgsoffscreen3dengine.h
• /build/qgis-3.99.0+git20250718+f78f5286a64+99sid/src/3d/qgsoffscreen3dengine.cpp