QDepthTest Class
(Qt3DRender::QDepthTest)The QDepthTest class tests the fragment shader's depth value against the depth of a sample being written to. 更多...
| 头文件: | #include <QDepthTest> |
| qmake: | QT += 3drender |
| 开始支持版本: | Qt 5.7 |
| Instantiated By: | DepthTest |
| 基类: | Qt3DRender::QRenderState |
公有类型
| enum | DepthFunction { Never, Always, Less, LessOrEqual, ..., NotEqual } |
属性
- depthFunction : DepthFunction
- 3 个属性继承自 Qt3DCore::QNode
- 1 个属性继承自 QObject
公有函数
| QDepthTest(Qt3DCore::QNode *parent = nullptr) | |
| DepthFunction | depthFunction() const |
- 11 个公有函数继承自 Qt3DCore::QNode
- 32 个公有函数继承自 QObject
公有槽函数
| void | setDepthFunction(DepthFunction depthFunction) |
- 3 个公有槽函数继承自 Qt3DCore::QNode
- 1 个公有槽函数继承自 QObject
信号
| void | depthFunctionChanged(DepthFunction depthFunction) |
- 4 个信号继承自 Qt3DCore::QNode
- 2 个信号继承自 QObject
其他继承的成员
- 1 个公有变量继承自 QObject
- 10 个静态公有成员继承自 QObject
- 2 个受保护的函数继承自 Qt3DCore::QNode
- 9 个受保护的函数继承自 QObject
- 2 个受保护的变量继承自 QObject
详细描述
The QDepthTest class tests the fragment shader's depth value against the depth of a sample being written to.
A QDepthTest class is used to enable depth testing with a given depth test function. The depth test enables writing fragment color values when the depth test passes, and reject fragments which fail the test. The depth test uses the depth function to test the fragments depth value to the value against z-buffer. If the underlying surface does not have z-buffer, then QDepthTest does nothing.
参见 QAlphaTest and QStencilTest.
成员类型
enum QDepthTest::DepthFunction
Enumeration for the depth function values
| Constant | Value | Description |
|---|---|---|
Qt3DRender::QDepthTest::Never | 0x0200 | Never pass depth test |
Qt3DRender::QDepthTest::Always | 0x0207 | Always pass depth test |
Qt3DRender::QDepthTest::Less | 0x0201 | Pass depth test if fragment depth is less than z-buffer value |
Qt3DRender::QDepthTest::LessOrEqual | 0x0203 | Pass depth test if fragment depth is less than or equal to z-buffer value |
Qt3DRender::QDepthTest::Equal | 0x0202 | Pass depth test if fragment depth is equal to z-buffer value |
Qt3DRender::QDepthTest::GreaterOrEqual | 0x0206 | Pass depth test if fragment depth is greater than or equal to z-buffer value |
Qt3DRender::QDepthTest::Greater | 0x0204 | Pass depth test if fragment depth is greater than z-buffer value |
Qt3DRender::QDepthTest::NotEqual | 0x0205 | Pass depth test if fragment depth is not equal to z-buffer value |
属性
depthFunction : DepthFunction
Holds the current function used by depth test. The default is Never.
访问函数:
| DepthFunction | depthFunction() const |
| void | setDepthFunction(DepthFunction depthFunction) |
Notifier signal:
| void | depthFunctionChanged(DepthFunction depthFunction) |