Qt3DRender::QAlphaCoverage Class
class Qt3DRender::QAlphaCoverage启用阿尔法-覆盖多重采样模式。更多
| 头文件： | #include <QAlphaCoverage> |
| CMake： | find_package(Qt6 REQUIRED COMPONENTS 3drender)target_link_libraries(mytarget PRIVATE Qt6::3drender) |
| qmake： | QT += 3drender |
| 在 QML 中： | AlphaCoverage |
| 继承： | Qt3DRender::QRenderState |
| 状态： | 已废弃 |
公共函数
| QAlphaCoverage(Qt3DCore::QNode *parent = nullptr) |
详细描述
Qt3DRender::QAlphaCoverage 类可启用阿尔法-覆盖率多重采样模式。启用后，片段阿尔法值将用作样本的覆盖值，并与片段覆盖值相结合。如果多采样被禁用，Qt3DRender::QAlphaCoverage 将不起任何作用。当需要与顺序无关的混合时，例如渲染树叶、草和其他丰富的植被时，Alpha-to-coverage 最为有用。
它可以通过调用QRenderPass::addRenderState() 添加到QRenderPass 中：
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);
或调用QRenderStateSet::addRenderState() 将其添加到QRenderStateSet 中：
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
[explicit] QAlphaCoverage::QAlphaCoverage(Qt3DCore::QNode *parent = nullptr)
构造函数使用指定的parent 创建一个新的QAlphaCoverage::QAlphaCoverage 实例。
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