Kuesa::Qt3D::ThresholdEffect¶

Post-processing effect showing only pixels brighter than a specified value. More...

#include <Kuesa/Qt3D/api/fx/thresholdeffect.h>

Inherits from Kuesa::Qt3D::AbstractPostProcessingEffect, Qt3DCore::QNode

Public Slots¶

	Name
void	setThreshold(float threshold)

Public Signals¶

	Name
void	thresholdChanged(float threshold)

Public Functions¶

	Name
	ThresholdEffect(Qt3DCore::QNode * parent =nullptr)
virtual FrameGraphNodePtr	frameGraphSubTree() const override
virtual QVector< Qt3DRender::QLayer * >	layers() const override
virtual void	setInputTexture(Qt3DRender::QAbstractTexture * texture) override
float	threshold() const

Public Properties¶

	Name
float	threshold the brightness value used as a cut-off

Additional inherited members¶

Public Types inherited from Kuesa::Qt3D::AbstractPostProcessingEffect

	Name
enum	Type { Custom}
using QSharedPointer< Qt3DRender::QFrameGraphNode >	FrameGraphNodePtr

Public Functions inherited from Kuesa::Qt3D::AbstractPostProcessingEffect

	Name
	~AbstractPostProcessingEffect()
Type	type() const
virtual void	setDepthTexture(Qt3DRender::QAbstractTexture * texture)
virtual void	setCamera(Qt3DCore::QEntity * camera)
virtual void	setWindowSize(const QSize & sceneSize)

Protected Functions inherited from Kuesa::Qt3D::AbstractPostProcessingEffect

	Name
	AbstractPostProcessingEffect(Qt3DCore::QNode * parent =nullptr, Type type =Custom)

Protected Attributes inherited from Kuesa::Qt3D::AbstractPostProcessingEffect

	Name
const Type	m_type

Detailed Description¶

class Kuesa::Qt3D::ThresholdEffect;

Post-processing effect showing only pixels brighter than a specified value.

Since: Kuesa 2.0

ThresholdEffect is a post-processing effect that passes through any pixel above a certain brightness value and sets all others to black.

#include <Qt3DExtras/Qt3DWindow>
#include <ForwardRenderer>
#include <SceneEntity>
#include <ThresholdEffect>

Qt3DExtras::Qt3DWindow win;
Kuesa::Qt3D::SceneEntity *root = new Kuesa::Qt3D::SceneEntity();
Kuesa::Qt3D::ForwardRenderer *frameGraph = new Kuesa::Qt3D::ForwardRenderer();
Kuesa::Qt3D::ThresholdEffect *thresholdEffect = new Kuesa::Qt3D::ThresholdEffect();

thresholdEffect->setThreshold(0.5f);

frameGraph->addPostProcessingEffect(thresholdEffect);

win->setRootEntity(root);
win->setActiveFrameGraph(forwardRenderer);

...

Public Slots Documentation¶

slot setThreshold¶

void setThreshold(
    float threshold
)

See: ThresholdEffect::threshold

Sets the threshold value to threshold.

Public Signals Documentation¶

signal thresholdChanged¶

void thresholdChanged(
    float threshold
)

Public Functions Documentation¶

function ThresholdEffect¶

ThresholdEffect(
    Qt3DCore::QNode * parent =nullptr
)

function frameGraphSubTree¶

virtual FrameGraphNodePtr frameGraphSubTree() const override

See: AbstractPostProcessingEffect::frameGraphSubTree

Reimplements: Kuesa::Qt3D::AbstractPostProcessingEffect::frameGraphSubTree

Returns the frame graph subtree corresponding to the effect's implementation.

function layers¶

virtual QVector< Qt3DRender::QLayer * > layers() const override

Reimplements: Kuesa::Qt3D::AbstractPostProcessingEffect::layers

Return the layers provided by this effect. This will generally be the layer of a

function setInputTexture¶

virtual void setInputTexture(
    Qt3DRender::QAbstractTexture * texture
) override

See: AbstractPostProcessingEffect::setInputTexture()

Reimplements: Kuesa::Qt3D::AbstractPostProcessingEffect::setInputTexture

Sets the input texture for the effect to texture.

function threshold¶

float threshold() const

See: ThresholdEffect::setThreshold

Returns the current threshold.

Public Property Documentation¶

property threshold¶

float threshold;

the brightness value used as a cut-off

This value is used to determine how bright a pixel needs to be to pass the threshold.

Threshold 0.12	Threshold 0.35

Updated on 2022-10-18 at 11:12:51 +0200