內容

特性
公共函數
公共槽
信號
靜態公共成員
詳細描述

QMaterial Class

Provides an abstract class that should be the base of all material component classes in a scene. 更多...

頭：	#include <QMaterial>
qmake:	QT += 3drender
Since:	Qt 5.5
實例化：	Material
繼承：	Qt3DCore::QComponent
繼承者：	Qt3DExtras::QDiffuseMapMaterial , Qt3DExtras::QDiffuseSpecularMapMaterial , Qt3DExtras::QDiffuseSpecularMaterial , Qt3DExtras::QGoochMaterial , Qt3DExtras::QMetalRoughMaterial , Qt3DExtras::QMorphPhongMaterial , Qt3DExtras::QNormalDiffuseMapMaterial , Qt3DExtras::QNormalDiffuseSpecularMapMaterial , Qt3DExtras::QPerVertexColorMaterial , Qt3DExtras::QPhongAlphaMaterial , Qt3DExtras::QPhongMaterial ，和 Qt3DExtras::QTextureMaterial

特性

effect : Qt3DRender::QEffect*

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

公共函數

	QMaterial (Qt3DCore::QNode * parent = nullptr)
virtual	~QMaterial ()
void	addParameter (Qt3DRender::QParameter * parameter )
Qt3DRender::QEffect *	effect () const
QVector<Qt3DRender::QParameter *>	參數 () const
void	removeParameter (Qt3DRender::QParameter * parameter )

2 公共函數繼承自 Qt3DCore::QComponent
13 公共函數繼承自 Qt3DCore::QNode
31 公共函數繼承自 QObject

公共槽

void	setEffect (Qt3DRender::QEffect * effect )

1 公共槽繼承自 Qt3DCore::QComponent
3 公共槽繼承自 Qt3DCore::QNode
1 公共槽繼承自 QObject

信號

void	effectChanged (Qt3DRender::QEffect * effect )

3 信號繼承自 Qt3DCore::QComponent
4 信號繼承自 Qt3DCore::QNode
2 信號繼承自 QObject

靜態公共成員

const QMetaObject

staticMetaObject

9 靜態公共成員繼承自 QObject

額外繼承成員

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

詳細描述

Provides an abstract class that should be the base of all material component classes in a scene.

QMaterial provides a way to specify the rendering of an entity . Any aspect can define its own subclass of QMaterial so that a Material can be used to describe a visual element; for example, the way sound should reflect off an element, the temperature of a surface, and so on.

In itself, a QMaterial doesn't do anything. It's only when it references a QEffect node that a QMaterial becomes useful.

In practice, it often happens that a single QEffect is being referenced by several QMaterial components. This allows to only create the effect, techniques, passes and shaders once while allowing to specify the material by adding QParameter 實例。

A QParameter defined on a QMaterial is overridden by a QParameter (of the same name) defined in a QTechniqueFilter 或 QRenderPassFilter .

QMaterial *material1 = new QMaterial();
QMaterial *material2 = new QMaterial();
// Create effect, technique, render pass and shader
QEffect *effect = new QEffect();
QTechnique *gl3Technique = new QTechnique();
QRenderPass *gl3Pass = new QRenderPass();
QShaderProgram *glShader = new QShaderProgram();
// Set the shader on the render pass
gl3Pass->setShaderProgram(glShader);
// Add the pass to the technique
gl3Technique->addRenderPass(gl3Pass);
// 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);
// Add the technique to the effect
effect->addTechnique(gl3Technique);
// Set the effect on the materials
material1->setEffect(effect);
material2->setEffect(effect);
// Set different parameters on the materials
const QString parameterName = QStringLiteral("color");
material1->addParameter(new QParameter(parameterName, QColor::fromRgbF(0.0f, 1.0f, 0.0f, 1.0f);
material2->addParameter(new QParameter(parameterName, QColor::fromRgbF(1.0f, 1.0f, 1.0f, 1.0f);

另請參閱 QEffect , QTechnique ，和 QParameter .

特性文檔編製

effect : Qt3DRender::QEffect *

Specifies the effect to be used with the material.

訪問函數：

Qt3DRender::QEffect *	effect () const
void	setEffect (Qt3DRender::QEffect * effect )

通知程序信號：

void	effectChanged (Qt3DRender::QEffect * effect )

成員函數文檔編製

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

Default constructs an instance of QMaterial.

`[虛擬]` QMaterial:: ~QMaterial ()

Destroys the instance of QMaterial. The destructor is virtual.

void QMaterial:: addParameter ( Qt3DRender::QParameter * parameter )

添加 parameter to the material's parameters.

QVector < Qt3DRender::QParameter *> QMaterial:: 參數 () const

Returns a vector of the material's current parameters

void QMaterial:: removeParameter ( Qt3DRender::QParameter * parameter )

Remove a parameter from the material's parameters.

內容