BlurEffect Class Reference

The BlurEffect blurs a given texture. More...

#include <blureffect.h>

Inheritance diagram for BlurEffect:

Public Member Functions
	BlurEffect (QOpenGLFunctions &gl, uint glowTexture, QObject *parent=nullptr)
	Creates a new BlurEffect that will blur a specified texture everytime blur() is called. More...
virtual	~BlurEffect ()
void	blur (const QSize &textureSize)
	Blurs previous set texture. The texture is blurred using two seperated passes of gauss blur. The result is a gaussblur with 9x9 kernel. More...

Protected Member Functions
void	initialize ()
void	initializeFBOs ()
void	initializeShaderPrograms ()
void	renderGaussHorizontal (const QSize &textureSize)
	Blurs texture horizontally. More...
void	renderGaussVertical (const QSize &textureSize)
	Blurs texture vertically. More...

Protected Attributes
QOpenGLFunctions &	m_gl
QMap< ShaderPrograms, QOpenGLShaderProgram * > *	m_shaderPrograms
bool	m_initialized
uint	m_blurFBO
uint	m_blurTexture
uint	m_secondaryBlurFBO
uint	m_secondaryBlurTexture
QSize *	m_usedViewport
ScreenAlignedQuad *	m_quad

Detailed Description

The BlurEffect blurs a given texture.

Constructor & Destructor Documentation

BlurEffect::BlurEffect	(	QOpenGLFunctions &	gl,
		uint	glowTexture,
		QObject *	parent = nullptr
	)

Creates a new BlurEffect that will blur a specified texture everytime blur() is called.

Parameters

gl	The QOpenGLFuntions will be used for all gl-calls.
glowTexture	The texture that will be blurred.
parent	QObject-parent

BlurEffect::~BlurEffect ( )

virtual

Member Function Documentation

void BlurEffect::blur

(

const QSize &

textureSize

)

Blurs previous set texture. The texture is blurred using two seperated passes of gauss blur. The result is a gaussblur with 9x9 kernel.

Parameters

textureSize

The size of texture, because changing texture sizes is supported.

void BlurEffect::initialize ( )

protected

void BlurEffect::initializeFBOs ( )

protected

void BlurEffect::initializeShaderPrograms ( )

protected

void BlurEffect::renderGaussHorizontal ( const QSize &  textureSize )

protected

Blurs texture horizontally.

Parameters

textureSize

The current size of texture that is blurred.

void BlurEffect::renderGaussVertical ( const QSize &  textureSize )

protected

Blurs texture vertically.

Parameters

textureSize

The current size of texture that is blurred.

Member Data Documentation

uint BlurEffect::m_blurFBO

protected

uint BlurEffect::m_blurTexture

protected

QOpenGLFunctions& BlurEffect::m_gl

protected

bool BlurEffect::m_initialized

protected

ScreenAlignedQuad* BlurEffect::m_quad

protected

uint BlurEffect::m_secondaryBlurFBO

protected

uint BlurEffect::m_secondaryBlurTexture

protected

QMap<ShaderPrograms, QOpenGLShaderProgram*>* BlurEffect::m_shaderPrograms

protected

QSize* BlurEffect::m_usedViewport

protected

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

• blureffect.h
• blureffect.cpp