Enable alpha-to-coverage multisampling mode. More...
|qmake:||QT += 3drender|
This class was introduced in Qt 5.7.
|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.
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);
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.
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