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 |
| Instantiated By: | AlphaCoverage |
| Inherits: | Qt3DRender::QRenderState |
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.
© 2024 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.
