內容

特性
公共函數
保護函數
詳細描述

QTechnique 類

封裝技術。更多...

頭：	#include <QTechnique>
qmake:	QT += 3drender
Since:	Qt 5.7
實例化：	Technique
繼承：	Qt3DCore::QNode

所有成員列錶，包括繼承成員

特性

graphicsApiFilter : Qt3DRender::QGraphicsApiFilter * const

3 特性繼承自 Qt3DCore::QNode
1 特性繼承自 QObject

公共函數

	QTechnique (Qt3DCore::QNode * parent = nullptr)
void	addFilterKey (QFilterKey * filterKey )
void	addParameter (QParameter * parameter )
void	addRenderPass (QRenderPass * pass )
QVector<QFilterKey *>	filterKeys () const
QGraphicsApiFilter *	graphicsApiFilter ()
QVector<QParameter *>	參數 () const
void	removeFilterKey (QFilterKey * filterKey )
void	removeParameter (QParameter * parameter )
void	removeRenderPass (QRenderPass * pass )
QVector<QRenderPass *>	renderPasses () const

11 公共函數繼承自 Qt3DCore::QNode
32 公共函數繼承自 QObject

保護函數

QTechnique (QTechniquePrivate & dd , Qt3DCore::QNode * parent = nullptr)

2 保護函數繼承自 Qt3DCore::QNode
9 保護函數繼承自 QObject

額外繼承成員

3 公共槽繼承自 Qt3DCore::QNode
1 公共槽繼承自 QObject
4 信號繼承自 Qt3DCore::QNode
2 信號繼承自 QObject
11 靜態公共成員繼承自 QObject

詳細描述

封裝技術。

A Qt3DRender::QTechnique 指定一組 Qt3DRender::QRenderPass 對象， Qt3DRender::QFilterKey 對象， Qt3DRender::QParameter 對象和 Qt3DRender::QGraphicsApiFilter , which together define a rendering technique the given graphics API can render. The filter keys are used by Qt3DRender::QTechniqueFilter to select specific techniques at specific parts of the FrameGraph. If two QParameter instances with the same name are specified in a QTechnique 和 QRenderPass , the one in Technique overrides the one used in the QRenderPass .

When creating an QEffect that targets several versions of a graphics API, it is useful to create several QTechnique nodes each with a graphicsApiFilter set to match one of the targeted GL versions. At runtime, the Qt3D renderer will select the most appropriate QTechnique based on which graphics API versions are supported and (if specified) the QFilterKey nodes that satisfy a given QTechniqueFilter in the FrameGraph.

注意： When using OpenGL as the graphics API for rendering, Qt3D relies on the QSurfaceFormat 返迴通過 QSurfaceFormat::defaultFormat () at runtime to decide what is the most appropriate GL version available. If you need to customize the QSurfaceFormat , do not forget to apply it with QSurfaceFormat::setDefaultFormat (). Setting the QSurfaceFormat on the view will likely have no effect on Qt3D related rendering.

QTechnique *gl3Technique = new QTechnique();
// Create the render passes
QRenderPass *firstPass = new QRenderPass();
QRenderPass *secondPass = new QRenderPass();
// Add the passes to the technique
gl3Technique->addRenderPass(firstPass);
gl3Technique->addRenderPass(secondPass);
// 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);
// Create a FilterKey
QFilterKey *filterKey = new QFilterKey();
filterKey->setName(QStringLiteral("name"));
fitlerKey->setValue(QStringLiteral("zFillPass"));
// Add the FilterKey to the Technique
gl3Technique->addFilterKey(filterKey);
// Create a QParameter
QParameter *colorParameter = new QParameter(QStringLiteral("color"), QColor::fromRgbF(0.0f, 0.0f, 1.0f, 1.0f));
// Add parameter to technique
gl3Technique->addParameter(colorParameter);

另請參閱 QEffect , QRenderPass ，和 QTechniqueFilter .

特性文檔編製

graphicsApiFilter : Qt3DRender::QGraphicsApiFilter * const

Specifies the graphics API filter being used

訪問函數：

QGraphicsApiFilter *

graphicsApiFilter ()

成員函數文檔編製

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

Default constructs an instance of QTechnique.

`[protected]` QTechnique:: QTechnique ( QTechniquePrivate & dd , Qt3DCore::QNode * parent = nullptr)

Copy constructor.

void QTechnique:: addFilterKey ( QFilterKey * filterKey )

添加 filterKey 到 Qt3DRender::QTechnique local filter keys.

void QTechnique:: addParameter ( QParameter * parameter )

添加 parameter to the technique's parameters.

void QTechnique:: addRenderPass ( QRenderPass * pass )

Appends a pass to the technique.

QVector < QFilterKey *> QTechnique:: filterKeys () const

Returns the list of Qt3DCore::QFilterKey key objects making up the filter keys of the Qt3DRender::QTechnique .

QVector < QParameter *> QTechnique:: 參數 () const

Returns a vector of the techniques current parameters

void QTechnique:: removeFilterKey ( QFilterKey * filterKey )

移除 filterKey 從 Qt3DRender::QTechnique local filter keys.

void QTechnique:: removeParameter ( QParameter * parameter )

移除 parameter from the technique's parameters.

void QTechnique:: removeRenderPass ( QRenderPass * pass )

Removes a pass from the technique.

QVector < QRenderPass *> QTechnique:: renderPasses () const

Returns the list of render passes contained in the technique.

內容