QAlphaCoverage Class

class Qt3DRender ::QAlphaCoverage

Enable alpha-to-coverage multisampling mode. 更多...

头：	#include <QAlphaCoverage>
CMake:	find_package(Qt6 REQUIRED COMPONENTS 3drender) target_link_libraries(mytarget PRIVATE Qt6::3drender)
qmake:	QT += 3drender
实例化：	AlphaCoverage
继承：	Qt3DRender::QRenderState

• 所有成员列表，包括继承成员

公共函数

QAlphaCoverage (Qt3DCore::QNode * parent = nullptr)

详细描述

A Qt3DRender::QAlphaCoverage class enables alpha-to-coverage multisampling mode. When enabled, the fragment alpha value is used as a coverage for the sample and combined with fragment coverage value. Qt3DRender::QAlphaCoverage does nothing if multisampling is disabled. Alpha-to-coverage is most useful when order independent blending is required, for example when rendering leaves, grass and other rich vegetation.

It can be added to a QRenderPass 通过调用 QRenderPass::addRenderState ():

QRenderPass *renderPass = new QRenderPass();
// Create a alpha coverage render state
QAlphaCoverage *alphaCoverage = new QAlphaCoverage();
QMultiSampleAntiAliasing *multiSampleAntialiasing = new QMultiSampleAntiAliasing();
// Add the render states to the render pass
renderPass->addRenderState(alphaCoverage);
renderPass->addRenderState(multiSampleAntialiasing);
					

Or to a QRenderStateSet 通过调用 QRenderStateSet::addRenderState ():

QRenderStateSet *renderStateSet = new QRenderStateSet();
// Create a alpha coverage render state
QAlphaCoverage *alphaCoverage = new QAlphaCoverage();
QMultiSampleAntiAliasing *multiSampleAntialiasing = new QMultiSampleAntiAliasing();
// Add the render states to the render state set
renderStateSet->addRenderState(alphaCoverage);
renderStateSet->addRenderState(multiSampleAntialiasing);
					

另请参阅 Qt3DRender::QMultiSampleAntiAliasing .

成员函数文档编制

[explicit] QAlphaCoverage:: QAlphaCoverage ( Qt3DCore::QNode * parent = nullptr)

The constructor creates a new QAlphaCoverage::QAlphaCoverage instance with the specified parent .

内容

• 公共函数

• 详细描述