The QForwardRenderer provides a default FrameGraph implementation of a forward renderer. 更多...
| 头： | #include <QForwardRenderer> |
| qmake: | QT += 3dextras |
| Since: | Qt 5.7 |
| 实例化： | ForwardRenderer |
| 继承： | Qt3DRender::QTechniqueFilter |
该类在 Qt 5.7 引入。
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| Qt3DRender::QClearBuffers::BufferType | buffersToClear () const |
| Qt3DCore::QEntity * | camera () const |
| QColor | clearColor () const |
| QSize | externalRenderTargetSize () const |
| float | gamma () const |
| bool | isFrustumCullingEnabled () const |
| bool | showDebugOverlay () const |
| QObject * | surface () const |
| QRectF | viewportRect () const |
| void | setBuffersToClear ( Qt3DRender::QClearBuffers::BufferType ) |
| void | setCamera (Qt3DCore::QEntity * camera ) |
| void | setClearColor (const QColor & clearColor ) |
| void | setExternalRenderTargetSize (const QSize & size ) |
| void | setFrustumCullingEnabled (bool enabled ) |
| void | setGamma (float gamma ) |
| void | setShowDebugOverlay (bool showDebugOverlay ) |
| void | setSurface (QObject * surface ) |
| void | setViewportRect (const QRectF & viewportRect ) |
| void | buffersToClearChanged ( Qt3DRender::QClearBuffers::BufferType ) |
| void | cameraChanged (Qt3DCore::QEntity * camera ) |
| void | clearColorChanged (const QColor & clearColor ) |
| void | externalRenderTargetSizeChanged (const QSize & size ) |
| void | frustumCullingEnabledChanged (bool enabled ) |
| void | gammaChanged (float gamma ) |
| void | showDebugOverlayChanged (bool showDebugOverlay ) |
| void | surfaceChanged (QObject * surface ) |
| void | viewportRectChanged (const QRectF & viewportRect ) |
Forward rendering is what OpenGL traditionally uses. It renders directly to the backbuffer one object at a time shading each one as it goes.
QForwardRenderer is a single leaf FrameGraph tree which contains a Qt3DRender::QViewport ， Qt3DRender::QCameraSelector ，和 Qt3DRender::QClearBuffers . The QForwardRenderer has a default requirement filter key whose name is "renderingStyle" and value "forward". If you need to filter out your techniques, you should do so based on that filter key.
By default the viewport occupies the whole screen and the clear color is white. Frustum culling is also enabled.
Holds the current buffers to be cleared. Default value is ColorDepthBuffer
该特性在 Qt 5.14 引入。
访问函数：
| Qt3DRender::QClearBuffers::BufferType | buffersToClear () const |
| void | setBuffersToClear ( Qt3DRender::QClearBuffers::BufferType ) |
通知程序信号：
| void | buffersToClearChanged ( Qt3DRender::QClearBuffers::BufferType ) |
Holds the current camera entity used to render the scene.
注意： A camera is a QEntity that has a QCameraLens as one of its components.
访问函数：
| Qt3DCore::QEntity * | camera () const |
| void | setCamera (Qt3DCore::QEntity * camera ) |
通知程序信号：
| void | cameraChanged (Qt3DCore::QEntity * camera ) |
Holds the current clear color of the scene. The frame buffer is initialized to the clear color before rendering.
访问函数：
| QColor | clearColor () const |
| void | setClearColor (const QColor & clearColor ) |
通知程序信号：
| void | clearColorChanged (const QColor & clearColor ) |
Contains the size of the external render target. External render targets are relevant when rendering does not target a window surface (as set in surface ).
访问函数：
| QSize | externalRenderTargetSize () const |
| void | setExternalRenderTargetSize (const QSize & size ) |
通知程序信号：
| void | externalRenderTargetSizeChanged (const QSize & size ) |
Indicates if the renderer applies frustum culling to the scene.
访问函数：
| bool | isFrustumCullingEnabled () const |
| void | setFrustumCullingEnabled (bool enabled ) |
通知程序信号：
| void | frustumCullingEnabledChanged (bool enabled ) |
Holds the gamma value the renderer applies to the scene.
访问函数：
| float | gamma () const |
| void | setGamma (float gamma ) |
通知程序信号：
| void | gammaChanged (float gamma ) |
If true, a debug overlay will be rendered over the scene. It will show detailed information about the runtime rendering state, let the user turn logging on and off, etc.
该特性在 Qt 5.15 引入。
访问函数：
| bool | showDebugOverlay () const |
| void | setShowDebugOverlay (bool showDebugOverlay ) |
通知程序信号：
| void | showDebugOverlayChanged (bool showDebugOverlay ) |
Holds the current render surface.
访问函数：
| QObject * | surface () const |
| void | setSurface (QObject * surface ) |
通知程序信号：
| void | surfaceChanged (QObject * surface ) |
Holds the current normalized viewport rectangle.
访问函数：
| QRectF | viewportRect () const |
| void | setViewportRect (const QRectF & viewportRect ) |
通知程序信号：
| void | viewportRectChanged (const QRectF & viewportRect ) |
