- class QForwardRenderer#
The
QForwardRenderer
provides a default FrameGraph implementation of a forward renderer. More…Synopsis#
Properties#
Methods#
def
__init__()
def
buffersToClear()
def
camera()
def
clearColor()
def
gamma()
def
surface()
def
viewportRect()
Slots#
def
setCamera()
def
setClearColor()
def
setGamma()
def
setSurface()
Signals#
Note
This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE
Detailed Description#
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 aQViewport
, aQCameraSelector
, and aQClearBuffers
. TheQForwardRenderer
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.
Note
Properties can be used directly when
from __feature__ import true_property
is used or via accessor functions otherwise.- property buffersToClearᅟ: Qt3DRender.QClearBuffers.BufferType#
Holds the current buffers to be cleared. Default value is ColorDepthBuffer
- Access functions:
Holds the current camera entity used to render the scene.
Note
A camera is a QEntity that has a QCameraLens as one of its components.
- Access functions:
Signal
cameraChanged()
Holds the current clear color of the scene. The frame buffer is initialized to the clear color before rendering.
- Access functions:
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
).- Access functions:
- property frustumCullingᅟ: bool#
Indicates if the renderer applies frustum culling to the scene.
- Access functions:
- property gammaᅟ: float#
Holds the gamma value the renderer applies to the scene.
- Access functions:
Signal
gammaChanged()
- property showDebugOverlayᅟ: bool#
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.
- Access functions:
Holds the current render surface.
- Access functions:
Holds the current normalized viewport rectangle.
- Access functions:
Holds the current render surface.
- Access functions:
- __init__([parent=None])#
- Parameters:
parent –
QNode
- buffersToClear()#
- Return type:
BufferType
See also
setBuffersToClear()
Getter of property
buffersToClearᅟ
.- buffersToClearChanged(arg__1)#
- Parameters:
arg__1 –
BufferType
Notification signal of property
buffersToClearᅟ
.- camera()#
- Return type:
QEntity
See also
setCamera()
Getter of property
cameraᅟ
.- cameraChanged(camera)#
- Parameters:
camera –
QEntity
Notification signal of property
cameraᅟ
.Getter of property
clearColorᅟ
.Notification signal of property
clearColorᅟ
.Getter of property
externalRenderTargetSizeᅟ
.Notification signal of property
externalRenderTargetSizeᅟ
.- frustumCullingEnabledChanged(enabled)#
- Parameters:
enabled – bool
Notification signal of property
frustumCullingᅟ
.- gamma()#
- Return type:
float
See also
setGamma()
Getter of property
gammaᅟ
.- gammaChanged(gamma)#
- Parameters:
gamma – float
Notification signal of property
gammaᅟ
.- isFrustumCullingEnabled()#
- Return type:
bool
Getter of property
frustumCullingᅟ
.- setBuffersToClear(arg__1)#
- Parameters:
arg__1 –
BufferType
See also
buffersToClear()
Setter of property
buffersToClearᅟ
.- setCamera(camera)#
- Parameters:
camera –
QEntity
See also
camera()
Setter of property
cameraᅟ
.Setter of property
clearColorᅟ
.Setter of property
externalRenderTargetSizeᅟ
.- setFrustumCullingEnabled(enabled)#
- Parameters:
enabled – bool
See also
isFrustumCullingEnabled()
Setter of property
frustumCullingᅟ
.- setGamma(gamma)#
- Parameters:
gamma – float
See also
gamma()
Setter of property
gammaᅟ
.- setShowDebugOverlay(showDebugOverlay)#
- Parameters:
showDebugOverlay – bool
See also
showDebugOverlay()
Setter of property
showDebugOverlayᅟ
.Setter of property
surfaceᅟ
.Setter of property
viewportRectᅟ
.- showDebugOverlay()#
- Return type:
bool
See also
setShowDebugOverlay()
Getter of property
showDebugOverlayᅟ
.- showDebugOverlayChanged(showDebugOverlay)#
- Parameters:
showDebugOverlay – bool
Notification signal of property
showDebugOverlayᅟ
.Getter of property
surfaceᅟ
.Notification signal of property
surfaceᅟ
.Getter of property
viewportRectᅟ
.Notification signal of property
viewportRectᅟ
.