Open Inventor Release 2024.1.2
 
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SoQtRenderArea Class Reference

VSG extension Component for rendering Open Inventor scene graphs. More...

#include <Inventor/Qt/SoQtRenderArea.h>

+ Inheritance diagram for SoQtRenderArea:

Public Types

typedef SbBool SoQtRenderAreaEventCB(void *userData, QEvent *anyevent)
 External event callback functions registered with the render area should be of this type.
 
typedef SbBool SoQtRenderAreaRenderCB(void *userData, SoQtRenderArea *rendArea)
 External post rendering callback functions registered with the render area should be of this type.
 
- Public Types inherited from SoQtGLWidget
enum  FloatColorBufferSize {
  FLOAT_16_COLOR_BUFFER = SoGuiGLWidget::FLOAT_16_COLOR_BUFFER ,
  FLOAT_32_COLOR_BUFFER = SoGuiGLWidget::FLOAT_32_COLOR_BUFFER
}
 FloatColorBufferSize. More...
 
- Public Types inherited from SoQtComponent
typedef void SoQtComponentCB(void *userData, SoQtComponent *comp)
 

Public Member Functions

 SoQtRenderArea (QWidget *parent=NULL, const char *name=NULL, SbBool buildInsideParent=TRUE, SbBool getMouseInput=TRUE, SbBool getKeyboardInput=TRUE)
 Constructor which is passed arguments which tell it whether to register the mouse and keyboard devices by default (SoQtMouse and SoQtKeyboard).
 
 ~SoQtRenderArea ()
 Destructor.
 
virtual void setSceneGraph (SoNode *newScene)
 Sets the scene graph to be rendered in this component's window.
 
virtual SoNodegetSceneGraph ()
 Gets the scene graph to be rendered in this component's window.
 
void registerDevice (SoQtDevice *d)
 Registers interest in devices.
 
void unregisterDevice (SoQtDevice *d)
 Unregisters interest in devices.
 
void setBackgroundColor (const SbColor &c)
 Sets the background color for this window.
 
SbColor getBackgroundColor () const
 Gets the background color for this window.
 
void setBackgroundIndex (int index)
 Sets the window background color when in color index mode.
 
int getBackgroundIndex () const
 Gets the window background color when in color index mode.
 
void setColorMap (QGLColormap *cmap)
 Sets the colors to use when displaying in color index mode.
 
void setViewportRegion (const SbViewportRegion &newRegion)
 Sets viewport region to use for rendering.
 
const SbViewportRegiongetViewportRegion () const
 Gets current viewport region to use for rendering.
 
void setTransparencyType (SoGLRenderAction::TransparencyType type)
 Sets the algorithm for rendering transparent objects.
 
SoGLRenderAction::TransparencyType getTransparencyType () const
 Gets the algorithm for rendering transparent objects.
 
void setFastEditSavePolicy (SoGLRenderAction::FastEditSavePolicy policy, SbBool fastEditDelayedObjects=FALSE)
 Sets fast editing save policy to use when rendering.
 
SoGLRenderAction::FastEditSavePolicy getFastEditSavePolicy () const
 Returns fast editing save policy used when rendering.
 
void setInvalidateCacheMode (SoGLRenderAction::InvalidateCacheMode icm)
 Enables or disables the invalidation of render caches.
 
SoGLRenderAction::InvalidateCacheMode getInvalidateCacheMode ()
 Returns the current cache invalidation mode.
 
void setClearBeforeRender (SbBool trueOrFalse, SbBool zbTrueOrFalse=TRUE)
 Enables/prevents window clearing from happening before a rendering starts (default is clear TRUE).
 
SbBool isClearBeforeRender () const
 Queries whether the window will be cleared before rendering starts.
 
SbBool isClearZBufferBeforeRender () const
 Queries whether the depth buffer (sometimes called the Z buffer) will be cleared before rendering starts.
 
void setAutoRedraw (SbBool trueOrFalse)
 The render area will automatically redraw whenever something in the scene graph changes.
 
SbBool isAutoRedraw () const
 Queries whether the render area will automatically redraw whenever something in the scene graph changes.
 
void setRedrawPriority (uint32_t priority)
 Sets the priority of the redraw sensor.
 
uint32_t getRedrawPriority () const
 Gets the priority of the redraw sensor.
 
void render ()
 Calling this forces the render area to be redrawn now.
 
void scheduleRedraw ()
 Schedules a redraw to happen sometime soon (as opposed to immediately).
 
void redrawOnSelectionChange (SoSelection *s)
 Call this convenience method to have this render area redraw whenever the selection list changes in the passed node.
 
void setEventCallback (SoQtRenderAreaEventCB *fcn, void *userData=NULL)
 Windows messages which occur in the render area window are either directly handled by the viewer (when this is really a viewer) or automatically translated to SoEvents, then passed into the scene graph (via the SoHandleEventAction) so that live scene graph objects can handle the message (when viewers are not in viewing mode).
 
void setSceneManager (SoSceneManager *sm)
 Sets the normal scene manager.
 
SoSceneManagergetSceneManager () const
 Gets the normal scene manager.
 
void setGLRenderAction (SoGLRenderAction *ra)
 Sets the GL render action to use.
 
SoGLRenderActiongetGLRenderAction () const
 Gets the current GL render action.
 
const SbGLShareContext getShareContext ()
 Returns the information needed to make OpenGL render contexts share OpenGL objects, for example, display lists and texture objects.
 
void setPostRenderCallback (SoQtRenderAreaRenderCB *fcn, void *userData=NULL)
 Specifies a function to be called after the Open Inventor render traversal and immediately before the OpenGL buffer swap.
 
SoQtRenderAreaRenderCBgetPostRenderCallback (const void *&userData) const
 Gets the post-render callback function and data.
 
void setFloatingColorBuffer (SbBool enable, FloatColorBufferSize size=FLOAT_16_COLOR_BUFFER)
 Enables/disables floating point rendering using 16- or 32-bit components.
 
void getFloatingColorBuffer (SbBool &enable, FloatColorBufferSize &size)
 Returns TRUE if floating point rendering is used and its precision.
 
void sendEvent (QEvent *anEvent)
 Sends the event to be processed by the renderArea.
 
virtual void setMPEGRecorder (SoMPEGRenderer *recorder)
 Sets the recorder used for MPEG encoding.
 
virtual SoMPEGRenderergetMPEGRecorder () const
 Returns the recorder used for MPEG encoding.
 
- Public Member Functions inherited from SoQtGLWidget
int getColorMapSize ()
 Returns the color map size.
 
void setColorMapSize (int size)
 Sets the color map size.
 
virtual WindowQt getNormalWindow ()
 Gets the normal GL window (window system identifier of the widget), which is needed as an argument to glXMakeCurrent() (on Xt) or SbGlContextHelper::makeCurrent() (on Windows) when drawing in the normal planes.
 
QOpenGLContext * getQOpenGLContext ()
 Gets the current context, which is needed as an argument to glXMakeCurrent() (on Xt) or SbGlContextHelper::makeCurrent() (on Windows) when drawing in the normal planes.
 
SoGLContextgetNormalSoContext ()
 Gets the current context, which is needed as an argument to glXMakeCurrent() (on Xt) or SbGlContextHelper::makeCurrent() (on Windows) when drawing in the normal planes.
 
QWidget * getNormalWidget ()
 Gets the current normal widget.
 
QSurfaceFormat getQSurfaceFormat ()
 Returns the QSurfaceFormat currently used.
 
virtual void setNormalVisual (QSurfaceFormat vis)
 Sets the visual/pixel format for the normal window.
 
virtual void setNormalVisual (const SoGLFormat &format)
 Sets the visual/pixel format for the normal window.
 
virtual void show ()
 This shows the component.
 
virtual void hide ()
 This hides the component.
 
virtual void setDoubleBuffer (SbBool onOrOff)
 Routine that dynamically changes between single and double buffering.
 
SbBool isDoubleBuffer ()
 Returns whether double buffering is on or off.
 
void setBorder (SbBool onOrOff)
 Included for portability only.
 
int getBorderSize ()
 Included for portability only.
 
SbBool isBorder () const
 Included for portability only.
 
void setDrawToFrontBufferEnable (SbBool enableFlag)
 Sets drawing to the front buffer.
 
SbBool isDrawToFrontBufferEnable () const
 Queries drawing to the front buffer.
 
virtual SbBool bindNormalContext ()
 Makes the normal rendering context the current context.
 
virtual SbBool unbindNormalContext ()
 unbind the current context (previously bind with bindNormalContext );
 
virtual SbBool swapNormalBuffers ()
 Swaps the normal front and back buffers.
 
virtual void setCursor (const QCursor &newCursor)
 Sets the current cursor.
 
QCursor getCursor () const
 Returns the current cursor.
 
void setAntialiasing (const float quality, const SoSceneManager::AntialiasingMode mode=SoSceneManager::AUTO)
 Enable (or disable) antialiasing with specified quality and mode.
 
void setAntialiasing (SoAntialiasingParameters *advancedParameters)
 Enable (or disable) antialiasing with specific parameters.
 
float getAntialiasingQuality () const
 Returns the antialiasing quality set using the setAntialiasing(float,AntialiasingMode) method.
 
SoSceneManager::AntialiasingMode getAntialiasingMode () const
 Returns the antialiasing mode set using the setAntialiasing(float,AntialiasingMode) method.
 
SoAntialiasingParametersgetAntialiasingParameters () const
 Returns the antialiasing parameters set using the setAntialiasing(SoAntialiasingParameters*) method.
 
bool saveSnapshot (const SbString &filename, bool overwrite=true)
 Save a snapshot of the current image displayed in the viewer.
 
- Public Member Functions inherited from SoQtComponent
SbBool isVisible ()
 Returns TRUE if this component is mapped onto the screen.
 
virtual QWidget * getWidget () const
 This returns the base widget handle for this component.
 
SbBool isTopLevelShell () const
 Returns TRUE if this component is a top level shell component (has its own window).
 
QWidget * getShellWidget () const
 Returns the topLevelShell widget handle (NULL if the topLevelShell hasn't been created by this component).
 
QWidget * getParentWidget () const
 Returns the parent widget handle.
 
void setSize (const SbVec2s &size)
 Convenience routine on the widget handle.
 
SbVec2s getSize ()
 Convenience routine on the widget handle.
 
virtual SbBool setFullScreen (const SbBool enable)
 Switches the viewer into (or out of) fullscreen mode.
 
SbBool isFullScreen (void) const
 Queries if the viewer is in fullscreen mode.
 
void setFullScreenEnable (const SbBool enable)
 Enables/disables fullscreen mode.
 
SbBool isFullScreenEnable (void) const
 Queries if it is possible to put the viewer in fullscreen mode.
 
SbGlContextHelper::Display getDisplay ()
 On UNIX, returns the X display associated with this components widget.
 
void setTitle (const char *newTitle)
 Sets window title.
 
void setTitle (const SbString &newTitle)
 Sets window title.
 
void setTitle (const QString &newTitle)
 Sets window title.
 
const QString getTitle () const
 Gets window title.
 
void setIconTitle (const QString &newIconTitle)
 Included for portability only.
 
const QString getIconTitle () const
 Included for portability only.
 
SbString getWidgetName () const
 Returns the widget handle name.
 
SbString getClassName () const
 Returns the class name.
 
void setWindowCloseCallback (SoQtComponentCB *func, void *data=NULL)
 Sets which callback to call when the user closes this component (double click in the upper left corner) - by default hide() is called on this component, unless a callback is set to something other than NULL.
 

Static Public Member Functions

static uint32_t getDefaultRedrawPriority ()
 Gets the default priority number of the redraw sensor.
 
static SbBool isFloatingColorBufferSupported ()
 Returns TRUE if floating point rendering is available.
 
- Static Public Member Functions inherited from SoQtComponent
static SoQtComponentgetComponent (QWidget *widget)
 Returns the SoQtComponent for this widget handle.
 

Additional Inherited Members

- Public Attributes inherited from SoQtComponent
SbString helpFileName
 Name of help file to open when the viewer Help button is pressed.
 

Detailed Description

VSG extension Component for rendering Open Inventor scene graphs.

This class provides Open Inventor rendering and event handling inside a QT widget. There is a routine to specify the scene to render. The scene is automatically rendered whenever anything under it changes (a data sensor is attached to the root of the scene), unless explicitly told not to do so (manual redraws). Users can also set Open Inventor rendering attributes such as the transparency algorithm, antialiasing on or off, etc. This class employs an SoSceneManager to manage rendering and event handling.

Q events that occur in the render area can be handled by the application, by the viewer (if this is really a viewer), or by the nodes in the scene graph. When a event occurs, it is first passed to the application event callback function registered with the setEventCallback() method on SoQtRenderArea. If this function does not exist or returns FALSE, the Q event is either used directly by the viewer or translated to an SoEvent for further scene graph processing. If the viewer does not handle the event, the SoEvent is sent to main scene graph by way of an SoHandleEventAction.

RESOURCES

      *SoQtRenderArea*BackgroundColor: black (color name or hex value)
    

SEE ALSO

SoQtGLWidget, SoQtComponent, SoQtViewer, SoSceneManager, SoBoxHighlightRenderAction, SoLineHighlightRenderAction

Definition at line 105 of file SoQtRenderArea.h.

Member Typedef Documentation

◆ SoQtRenderAreaEventCB

typedef SbBool SoQtRenderAreaEventCB(void *userData, QEvent *anyevent)

External event callback functions registered with the render area should be of this type.

Definition at line 58 of file SoQtRenderArea.h.

◆ SoQtRenderAreaRenderCB

typedef SbBool SoQtRenderAreaRenderCB(void *userData, SoQtRenderArea *rendArea)

External post rendering callback functions registered with the render area should be of this type.

Definition at line 65 of file SoQtRenderArea.h.

Constructor & Destructor Documentation

◆ SoQtRenderArea()

SoQtRenderArea::SoQtRenderArea ( QWidget *  parent = NULL,
const char *  name = NULL,
SbBool  buildInsideParent = TRUE,
SbBool  getMouseInput = TRUE,
SbBool  getKeyboardInput = TRUE 
)

Constructor which is passed arguments which tell it whether to register the mouse and keyboard devices by default (SoQtMouse and SoQtKeyboard).

◆ ~SoQtRenderArea()

SoQtRenderArea::~SoQtRenderArea ( )

Destructor.

Member Function Documentation

◆ getBackgroundColor()

SbColor SoQtRenderArea::getBackgroundColor ( ) const
inline

Gets the background color for this window.

Definition at line 160 of file SoQtRenderArea.h.

◆ getBackgroundIndex()

int SoQtRenderArea::getBackgroundIndex ( ) const
inline

Gets the window background color when in color index mode.

Definition at line 171 of file SoQtRenderArea.h.

◆ getDefaultRedrawPriority()

static uint32_t SoQtRenderArea::getDefaultRedrawPriority ( )
inlinestatic

Gets the default priority number of the redraw sensor.

Definition at line 297 of file SoQtRenderArea.h.

◆ getFastEditSavePolicy()

SoGLRenderAction::FastEditSavePolicy SoQtRenderArea::getFastEditSavePolicy ( ) const
inline

Returns fast editing save policy used when rendering.

Definition at line 223 of file SoQtRenderArea.h.

◆ getFloatingColorBuffer()

void SoQtRenderArea::getFloatingColorBuffer ( SbBool enable,
FloatColorBufferSize size 
)

Returns TRUE if floating point rendering is used and its precision.

◆ getGLRenderAction()

SoGLRenderAction * SoQtRenderArea::getGLRenderAction ( ) const
inline

Gets the current GL render action.

Definition at line 366 of file SoQtRenderArea.h.

◆ getInvalidateCacheMode()

SoGLRenderAction::InvalidateCacheMode SoQtRenderArea::getInvalidateCacheMode ( )

Returns the current cache invalidation mode.

◆ getMPEGRecorder()

virtual SoMPEGRenderer * SoQtRenderArea::getMPEGRecorder ( ) const
inlinevirtual

Returns the recorder used for MPEG encoding.

Definition at line 441 of file SoQtRenderArea.h.

◆ getPostRenderCallback()

SoQtRenderAreaRenderCB * SoQtRenderArea::getPostRenderCallback ( const void *&  userData) const
inline

Gets the post-render callback function and data.

Returns NULL if no callback has been specified by the application.

Definition at line 396 of file SoQtRenderArea.h.

◆ getRedrawPriority()

uint32_t SoQtRenderArea::getRedrawPriority ( ) const
inline

Gets the priority of the redraw sensor.

Definition at line 292 of file SoQtRenderArea.h.

◆ getSceneGraph()

virtual SoNode * SoQtRenderArea::getSceneGraph ( )
virtual

Gets the scene graph to be rendered in this component's window.

Reimplemented in SoQtViewer.

◆ getSceneManager()

SoSceneManager * SoQtRenderArea::getSceneManager ( ) const
inline

Gets the normal scene manager.

Note: For convenience most of the SoSceneManager methods have already been added to this class.

Definition at line 350 of file SoQtRenderArea.h.

◆ getShareContext()

const SbGLShareContext SoQtRenderArea::getShareContext ( )

Returns the information needed to make OpenGL render contexts share OpenGL objects, for example, display lists and texture objects.

◆ getTransparencyType()

SoGLRenderAction::TransparencyType SoQtRenderArea::getTransparencyType ( ) const
inline

Gets the algorithm for rendering transparent objects.

See SoGLRenderAction for possible transparency types.

Definition at line 206 of file SoQtRenderArea.h.

◆ getViewportRegion()

const SbViewportRegion & SoQtRenderArea::getViewportRegion ( ) const
inline

Gets current viewport region to use for rendering.

Definition at line 188 of file SoQtRenderArea.h.

◆ isAutoRedraw()

SbBool SoQtRenderArea::isAutoRedraw ( ) const
inline

Queries whether the render area will automatically redraw whenever something in the scene graph changes.

Definition at line 282 of file SoQtRenderArea.h.

◆ isClearBeforeRender()

SbBool SoQtRenderArea::isClearBeforeRender ( ) const
inline

Queries whether the window will be cleared before rendering starts.

Definition at line 261 of file SoQtRenderArea.h.

◆ isClearZBufferBeforeRender()

SbBool SoQtRenderArea::isClearZBufferBeforeRender ( ) const
inline

Queries whether the depth buffer (sometimes called the Z buffer) will be cleared before rendering starts.

Definition at line 267 of file SoQtRenderArea.h.

◆ isFloatingColorBufferSupported()

static SbBool SoQtRenderArea::isFloatingColorBufferSupported ( )
static

Returns TRUE if floating point rendering is available.

◆ redrawOnSelectionChange()

void SoQtRenderArea::redrawOnSelectionChange ( SoSelection s)

Call this convenience method to have this render area redraw whenever the selection list changes in the passed node.

This is useful if using a highlight render action like the SoBoxHighlightRenderAction to correctly render whenever the selection changes. Pass NULL to turn this off.

This call increases the ref counter of the given SoSelection node, it will be automatically decreased when the selection node is replaced by another one, or if it is turned off.

◆ registerDevice()

void SoQtRenderArea::registerDevice ( SoQtDevice d)

Registers interest in devices.

When a device is registered, messages from that device will be processed by the render area, and passed into the scene graph. Messages from unregistered devices will be ignored.

◆ render()

void SoQtRenderArea::render ( )
inline

Calling this forces the render area to be redrawn now.

It is not necessary to call this method if auto redraw is enabled (which is the default).

Definition at line 303 of file SoQtRenderArea.h.

◆ scheduleRedraw()

void SoQtRenderArea::scheduleRedraw ( )

Schedules a redraw to happen sometime soon (as opposed to immediately).

This can be used to compress multiple redraws.

◆ sendEvent()

void SoQtRenderArea::sendEvent ( QEvent *  anEvent)

Sends the event to be processed by the renderArea.

◆ setAutoRedraw()

void SoQtRenderArea::setAutoRedraw ( SbBool  trueOrFalse)

The render area will automatically redraw whenever something in the scene graph changes.

Passing FALSE will disable this feature. NOTE: the render area will always redraw in response to window system events (e.g. resize, exposure) regardless of the setting of the auto redraw flag.

◆ setBackgroundColor()

void SoQtRenderArea::setBackgroundColor ( const SbColor c)

Sets the background color for this window.

Default is black (0,0,0).

The default value can be set using the environment variable OIV_BACKGROUND_COLOR. Specify three floats (R, G, B) in the range 0. to 1.,
separated by spaces.

◆ setBackgroundIndex()

void SoQtRenderArea::setBackgroundIndex ( int  index)
inline

Sets the window background color when in color index mode.

Default is black (index 0)).

Definition at line 166 of file SoQtRenderArea.h.

◆ setClearBeforeRender()

void SoQtRenderArea::setClearBeforeRender ( SbBool  trueOrFalse,
SbBool  zbTrueOrFalse = TRUE 
)
inline

Enables/prevents window clearing from happening before a rendering starts (default is clear TRUE).

This can be useful to limit flickering when doing single buffering and geometry covers the entire window (used in the material editor). Also controls whether the depth buffer (sometimes called the Z buffer) is cleared before rendering.

Definition at line 255 of file SoQtRenderArea.h.

◆ setColorMap()

void SoQtRenderArea::setColorMap ( QGLColormap *  cmap)

Sets the colors to use when displaying in color index mode.

This will load the color map with the given colors at the starting index.

◆ setEventCallback()

void SoQtRenderArea::setEventCallback ( SoQtRenderAreaEventCB fcn,
void *  userData = NULL 
)

Windows messages which occur in the render area window are either directly handled by the viewer (when this is really a viewer) or automatically translated to SoEvents, then passed into the scene graph (via the SoHandleEventAction) so that live scene graph objects can handle the message (when viewers are not in viewing mode).

This method allows the application to register a callback for handling messages that occur in the window, instead of sending them to the viewers or down the graph. The callback is passed the Windows message, and should return TRUE if it handled the message. If the callback returns FALSE, then the message will be handled by the render area.

◆ setFastEditSavePolicy()

void SoQtRenderArea::setFastEditSavePolicy ( SoGLRenderAction::FastEditSavePolicy  policy,
SbBool  fastEditDelayedObjects = FALSE 
)

Sets fast editing save policy to use when rendering.

The default is WHEN_NEEDED. Valid values are DISABLE, EACH_FRAME, and WHEN_NEEDED. See SoSeparator.

If fastEditDelayedObjects is set to TRUE, delayed objects won't be redrawn when editing the scene graph. It means that composition between delayed transparent objects and the fast edit scene graph won't be correct but redrawing may be much faster. Default is false.

◆ setFloatingColorBuffer()

void SoQtRenderArea::setFloatingColorBuffer ( SbBool  enable,
FloatColorBufferSize  size = FLOAT_16_COLOR_BUFFER 
)

Enables/disables floating point rendering using 16- or 32-bit components.

If TRUE, Open Inventor will automatically render to an offscreen floating point buffer, and copy the resulting image to the screen.

To determine if floating point rendering was successfully enabled, use getFloatingColorBuffer, below.

Using floating point rendering can improve image quality, particularly when many objects are being blended, for example, in volume rendering. This is a convenience method as you could accomplish the same results setting up a graphic template.

◆ setGLRenderAction()

void SoQtRenderArea::setGLRenderAction ( SoGLRenderAction ra)

Sets the GL render action to use.

This is used for example to set selection highlighting with the SoBoxHighlightRenderAction, SoHaloHighlightRenderAction and SoLineHighlightRenderAction classes.

Note: Properties of the previous render action, for example transparency type, are not automatically copied to the new render action. The application must explicitly set the desired properties of the new render action.

◆ setInvalidateCacheMode()

void SoQtRenderArea::setInvalidateCacheMode ( SoGLRenderAction::InvalidateCacheMode  icm)

Enables or disables the invalidation of render caches.

  • When set to ALWAYS, the caches are invalidated for each SoSeparator node before its children are traversed. No new caches will be built. This value forces all nodes to be visited during each render traversal.
  • When set to ONCE, the caches are invalidated for each SoSeparator node before its children are traversed. The invalidate cache mode is automatically changed to OFF at the end of the traversal.
  • When set to OFF (default), caches are managed by their respective render caching nodes in the usual way.

This method is useful to force all nodes to be visited during render traversal.

◆ setMPEGRecorder()

virtual void SoQtRenderArea::setMPEGRecorder ( SoMPEGRenderer recorder)
inlinevirtual

Sets the recorder used for MPEG encoding.

Parameters
recorderthe recorder to be used.

Definition at line 435 of file SoQtRenderArea.h.

◆ setPostRenderCallback()

void SoQtRenderArea::setPostRenderCallback ( SoQtRenderAreaRenderCB fcn,
void *  userData = NULL 
)
inline

Specifies a function to be called after the Open Inventor render traversal and immediately before the OpenGL buffer swap.

Generally the application should not modify Open Inventor state in these callbacks, but they can be useful for special effects using OpenGL calls.

When the callback function is called, Open Inventor has completed normal rendering (including delayed transparent objects, multi-pass, etc), but no "end of frame" calls (glFlush, glFinish, SwapBuffers...) have been made. The function should return TRUE if "end of frame" handling has been done by the application (Open Inventor will do nothing in this case). If FALSE is returned, Open Inventor will do its normal end of frame calls (normally calling SwapBuffers).

Definition at line 389 of file SoQtRenderArea.h.

◆ setRedrawPriority()

void SoQtRenderArea::setRedrawPriority ( uint32_t  priority)
inline

Sets the priority of the redraw sensor.

Definition at line 287 of file SoQtRenderArea.h.

◆ setSceneGraph()

virtual void SoQtRenderArea::setSceneGraph ( SoNode newScene)
virtual

Sets the scene graph to be rendered in this component's window.

Reimplemented in SoQtViewer.

◆ setSceneManager()

void SoQtRenderArea::setSceneManager ( SoSceneManager sm)

Sets the normal scene manager.

Note: For convenience most of the SoSceneManager methods have already been added to this class.

◆ setTransparencyType()

void SoQtRenderArea::setTransparencyType ( SoGLRenderAction::TransparencyType  type)

Sets the algorithm for rendering transparent objects.

Default is NO_SORT. See SoGLRenderAction for possible transparency types. See also SoGLRenderAction::TransparencyType.

Note: When using OPAQUE_FIRST, SORTED_OBJECT or SORTED_PIXEL transparency, the depth buffer is not updated (depth buffer writes are disabled) while rendering transparent objects. As a result complex 3D shapes may not be rendered correctly.

◆ setViewportRegion()

void SoQtRenderArea::setViewportRegion ( const SbViewportRegion newRegion)
inline

Sets viewport region to use for rendering.

Definition at line 182 of file SoQtRenderArea.h.

◆ unregisterDevice()

void SoQtRenderArea::unregisterDevice ( SoQtDevice d)

Unregisters interest in devices.

When a device is registered, messages from that device will be processed by the render area, and passed into the scene graph. Messages from unregistered devices will be ignored.


The documentation for this class was generated from the following file: