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 |
QAlphaCoverage (Qt3DCore::QNode * parent = nullptr) |
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 .
[explicit]
QAlphaCoverage::
QAlphaCoverage
(
Qt3DCore::QNode
*
parent
= nullptr)
The constructor creates a new QAlphaCoverage::QAlphaCoverage instance with the specified parent .