Qt3DRender::QAlphaCoverage Class
class Qt3DRender::QAlphaCoverageEnable alpha-to-coverage multisampling mode. More...
| Header: | #include <QAlphaCoverage> |
| CMake: | find_package(Qt6 REQUIRED COMPONENTS 3drender)target_link_libraries(mytarget PRIVATE Qt6::3drender) |
| qmake: | QT += 3drender |
| In QML: | AlphaCoverage |
| Inherits: | Qt3DRender::QRenderState |
| Status: | Deprecated |
Public Functions
| QAlphaCoverage(Qt3DCore::QNode *parent = nullptr) |
Detailed Description
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 by calling 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 by calling 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);
See also Qt3DRender::QMultiSampleAntiAliasing.
Member Function Documentation
[explicit] QAlphaCoverage::QAlphaCoverage(Qt3DCore::QNode *parent = nullptr)
The constructor creates a new QAlphaCoverage::QAlphaCoverage instance with the specified parent.
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