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

#include <Inventor/Xt/SoXtRenderArea.h>

Inheritance diagram for SoXtRenderArea:

Public Types
typedef SbBool	SoXtRenderAreaEventCB(void userData, XAnyEvent anyevent)

typedef SbBool	SoXtRenderAreaRenderCB(void userData, SoXtRenderArea rendArea)

Public Types inherited from SoXtGLWidget
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 SoXtComponent
typedef void	SoXtComponentCB(void data, SoXtComponent v)

Public Member Functions
	SoXtRenderArea (SoWidget 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 (SoXtMouse and SoXtKeyboard).

	~SoXtRenderArea ()
	Destructor.

virtual void	setSceneGraph (SoNode *newScene)
	Sets the scene graph to be rendered in this component's window.

virtual SoNode *	getSceneGraph ()
	Gets the scene graph to be rendered in this component's window.

void	registerDevice (SoXtDevice *d)
	Registers interest in devices.

void	unregisterDevice (SoXtDevice *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 (int startIndex, int num, const SbColor *colors)
	Sets the colors to use when displaying in color index mode.

void	setViewportRegion (const SbViewportRegion &newRegion)
	Sets viewport region to use for rendering.

const SbViewportRegion &	getViewportRegion () 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 (SoXtRenderAreaEventCB fcn, void userData=NULL)
	X events 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 event (when viewers are not in viewing mode).

void	setSceneManager (SoSceneManager *sm)
	Sets the normal scene manager.

SoSceneManager *	getSceneManager () const
	Gets the normal scene manager.

void	setGLRenderAction (SoGLRenderAction *ra)
	Sets the GL render action to use.

SoGLRenderAction *	getGLRenderAction () 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 (SoXtRenderAreaRenderCB fcn, void userData=NULL)
	Specifies a function to be called after the Open Inventor render traversal and immediately before the OpenGL buffer swap.

SoXtRenderAreaRenderCB *	getPostRenderCallback (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 (XAnyEvent *anEvent)
	Sends the event to be processed by the renderArea.

virtual void	setMPEGRecorder (SoMPEGRenderer *recorder)
	Sets the recorder used for MPEG encoding.

virtual SoMPEGRenderer *	getMPEGRecorder () const
	Returns the recorder used for the MPEG encoding.

Deprecated

SoDEPRECATED void	setAntialiasing (SbBool smoothing, int numPasses)
	Enables smoothing and/or multi-pass antialiasing for rendering.

SoDEPRECATED void	getAntialiasing (SbBool &smoothing, int &numPasses) const
	Gets the antialiasing used for rendering.

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.

Public Member Functions inherited from SoXtGLWidget
int	getColorMapSize ()
	Returns the color map size.

virtual Window	getNormalWindow ()
	Gets the current normal GL window, which is needed as an argument to glXMakeCurrent() when drawing in the normal planes.

SbGlContextHelper::GLContext	getNormalContext () const
	Gets the current normal context, which is needed as an argument to glXMakeCurrent() when drawing in the normal planes.

SoGLContext *	getNormalSoContext () const

SoWidget	getNormalWidget () const
	Gets the current normal widget, which is needed as an argument to glXMakeCurrent() when drawing in the normal planes.

virtual void	setNormalVisual (XVisualInfo *vis)
	Specify exactly what the visual should be for the normal window.

XVisualInfo *	getNormalVisual ()
	Returns the visual for the normal window.

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	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.

SoAntialiasingParameters *	getAntialiasingParameters () const
	Returns the antialiasing parameters set using the setAntialiasing(SoAntialiasingParameters*) method.

void	setBorder (SbBool onOrOff)
	Shows/hides a border of thickness 3 around the glX widgets.

SbBool	isBorder () const
	Returns whether the border is on or off.

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.

SoGLGraphicConfigTemplate *	getGraphicConfigTemplate ()
	Gets the current graphics configuration template.

void	setGraphicConfigTemplate (SoGLGraphicConfigTemplate *gTemplate)
	Sets a new graphics configuration template.

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.

bool	saveSnapshot (const SbString &filename, bool overwrite=true)
	Save a snapshot of the current image displayed in the viewer.

Public Member Functions inherited from SoXtComponent
virtual void	show ()
	This shows the component.

virtual void	hide ()
	This hides the component.

SbBool	isVisible ()
	Returns TRUE if this component is mapped onto the screen.

SoWidget	getWidget () const
	This returns the base widget for this component.

SbBool	isTopLevelShell () const
	Returns TRUE if this component is a top level shell component (has its own window).

SoWidget	getShellWidget () const
	Returns the shell widget (NULL if the shell hasn't been created by this component).

SoWidget	getParentWidget () const
	Returns the parent widget, be it a shell or not.

void	setSize (const SbVec2s &size)
	Convenience routine on the widget.

SbVec2s	getSize ()
	Convenience routine on the widget.

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 () const
	Queries if it is possible to put the viewer in fullscreen mode.

Display *	getDisplay ()
	Returns the X display associated with this components widget.

SoNONUNICODE void	setTitle (const char *newTitle)
	Sets window title.

void	setTitle (const SbString &newTitle)
	Sets window title.

SbString	getTitle () const
	Gets window title.

SoNONUNICODE void	setIconTitle (const char *newIconTitle)
	Sets icon title.

void	setIconTitle (const SbString &newIconTitle)
	Sets icon title.

SbString	getIconTitle () const
	Gets icon title.

void	setWindowCloseCallback (SoXtComponentCB 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.

SbString	getWidgetName () const
	Returns the widget name.

SbString	getClassName () const
	Returns the class name.

Static Public Member Functions
static uint32_t	getDefaultRedrawPriority ()
	Gets the default priority number of the redraw sensor.

Static Public Member Functions inherited from SoXtComponent
static void	displayHelp (const char *filename, UINT contextID)
	Static method to display the specified topic of the specified help file.

static SoXtComponent *	getComponent (SoWidget w)
	This returns the SoXtComponent for this widget.

Detailed Description

Component for rendering Open Inventor scene graphs.

This class provides Open Inventor rendering and event handling inside a GLX Motif 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.

X 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 SoXtRenderArea. If this function does not exist or returns FALSE, the X 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 that scene graph by way of an SoHandleEventAction.

RESOURCES

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

Member Typedef Documentation

◆ SoXtRenderAreaEventCB

typedef SbBool SoXtRenderAreaEventCB(void *userData, XAnyEvent *anyevent)

Definition at line 88 of file SoXtRenderArea.h.

◆ SoXtRenderAreaRenderCB

typedef SbBool SoXtRenderAreaRenderCB(void *userData, SoXtRenderArea *rendArea)

Definition at line 90 of file SoXtRenderArea.h.

Constructor & Destructor Documentation

◆ SoXtRenderArea()

SoXtRenderArea::SoXtRenderArea	(	SoWidget	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 (SoXtMouse and SoXtKeyboard).

◆ ~SoXtRenderArea()

SoXtRenderArea::~SoXtRenderArea ( )

Destructor.

Member Function Documentation

◆ getAntialiasing()

SoDEPRECATED void SoXtRenderArea::getAntialiasing	(	SbBool &	smoothing,
		int &	numPasses
	)		const

Gets the antialiasing used for rendering.

◆ getBackgroundColor()

SbColor SoXtRenderArea::getBackgroundColor ( ) const

inline

Gets the background color for this window.

Definition at line 192 of file SoXtRenderArea.h.

◆ getBackgroundIndex()

int SoXtRenderArea::getBackgroundIndex ( ) const

inline

Gets the window background color when in color index mode.

Definition at line 203 of file SoXtRenderArea.h.

◆ getDefaultRedrawPriority()

static uint32_t SoXtRenderArea::getDefaultRedrawPriority ( )

inlinestatic

Gets the default priority number of the redraw sensor.

Definition at line 326 of file SoXtRenderArea.h.

◆ getFastEditSavePolicy()

SoGLRenderAction::FastEditSavePolicy SoXtRenderArea::getFastEditSavePolicy ( ) const

inline

Returns fast editing save policy used when rendering.

Definition at line 255 of file SoXtRenderArea.h.

◆ getFloatingColorBuffer()

void SoXtRenderArea::getFloatingColorBuffer	(	SbBool &	enable,
		FloatColorBufferSize &	size
	)

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

◆ getGLRenderAction()

SoGLRenderAction * SoXtRenderArea::getGLRenderAction ( ) const

inline

Gets the current GL render action.

Definition at line 395 of file SoXtRenderArea.h.

◆ getInvalidateCacheMode()

SoGLRenderAction::InvalidateCacheMode SoXtRenderArea::getInvalidateCacheMode ( )

Returns the current cache invalidation mode.

◆ getMPEGRecorder()

virtual SoMPEGRenderer * SoXtRenderArea::getMPEGRecorder ( ) const

inlinevirtual

Returns the recorder used for the MPEG encoding.

Definition at line 466 of file SoXtRenderArea.h.

◆ getPostRenderCallback()

SoXtRenderAreaRenderCB * SoXtRenderArea::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 425 of file SoXtRenderArea.h.

◆ getRedrawPriority()

uint32_t SoXtRenderArea::getRedrawPriority ( ) const

inline

Gets the priority of the redraw sensor.

Definition at line 321 of file SoXtRenderArea.h.

◆ getSceneGraph()

virtual SoNode * SoXtRenderArea::getSceneGraph ( )

virtual

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

Reimplemented in SoXtViewer.

◆ getSceneManager()

SoSceneManager * SoXtRenderArea::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 379 of file SoXtRenderArea.h.

◆ getShareContext()

const SbGLShareContext SoXtRenderArea::getShareContext ( )

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

◆ getTransparencyType()

SoGLRenderAction::TransparencyType SoXtRenderArea::getTransparencyType ( ) const

inline

Gets the algorithm for rendering transparent objects.

See SoGLRenderAction for possible transparency types.

Definition at line 238 of file SoXtRenderArea.h.

◆ getViewportRegion()

const SbViewportRegion & SoXtRenderArea::getViewportRegion ( ) const

inline

Gets current viewport region to use for rendering.

Definition at line 220 of file SoXtRenderArea.h.

◆ isAutoRedraw()

SbBool SoXtRenderArea::isAutoRedraw ( ) const

inline

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

Definition at line 311 of file SoXtRenderArea.h.

◆ isClearBeforeRender()

SbBool SoXtRenderArea::isClearBeforeRender ( ) const

inline

Queries whether the window will be cleared before rendering starts.

Definition at line 293 of file SoXtRenderArea.h.

◆ isClearZBufferBeforeRender()

SbBool SoXtRenderArea::isClearZBufferBeforeRender ( ) const

inline

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

Definition at line 299 of file SoXtRenderArea.h.

◆ redrawOnSelectionChange()

void SoXtRenderArea::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 SoHaloHighlightRenderAction 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 SoXtRenderArea::registerDevice ( SoXtDevice * 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 SoXtRenderArea::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 332 of file SoXtRenderArea.h.

◆ scheduleRedraw()

void SoXtRenderArea::scheduleRedraw ( )

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

This can be used to compress multiple redraws.

◆ sendEvent()

void SoXtRenderArea::sendEvent ( XAnyEvent * anEvent )

Sends the event to be processed by the renderArea.

◆ setAntialiasing() [1/3]

void SoXtGLWidget::setAntialiasing	(	const float	quality,
		const SoSceneManager::AntialiasingMode	mode = `SoSceneManager::AUTO`
	)

Enable (or disable) antialiasing with specified quality and mode.

Specific antialiasing parameters will be set automatically based on the quality value. Note that the quality and mode settings are overridden if specific antialiasing parameters are subsequently set using the setAntialiasing(SoAntialiasingParameters*) method.

The default mode is AUTO but this may be overridden by setting the environment variable OIV_ANTIALIASING_DEFAULT_MODE (see SoPreferences).

Parameters

quality	The quality is a factor in the range [0.0,1.0]. Use the value 0.0 to turn off antialiasing. 0.5 is a typical value.
mode	The antialiasing algorithm. Default is AUTO, which means use the best for the current hardware. Use the value NO_ANTIALIASING to turn off antialiasing.

◆ setAntialiasing() [2/3]

SoDEPRECATED void SoXtRenderArea::setAntialiasing	(	SbBool	smoothing,
		int	numPasses
	)

Enables smoothing and/or multi-pass antialiasing for rendering.

There are two kinds of antialiasing available: smoothing and multipass antialiasing. If smoothing is set to TRUE, smoothing is enabled. Smoothing uses OpenGL's line- and point-smoothing features to provide cheap antialiasing of lines and points. The value of numPasses controls multipass antialiasing. Each time a render action is applied, Open Inventor renders the scene numPasses times from slightly different camera positions, averaging the results. numPasses can be from one to 255, inclusive. Setting numPasses to one disables multipass antialiasing. You can use either, both, or neither of these antialiasing techniques. By default, both smoothing and multipass antialiasing are disabled.

◆ setAntialiasing() [3/3]

void SoXtGLWidget::setAntialiasing ( SoAntialiasingParameters * advancedParameters )

Enable (or disable) antialiasing with specific parameters.

Use one of the subclasses of SoAntialiasingParameters. The antialiasing mode is determined by which subclass is used to set the parameters. For example, passing an SoFXAAParameters object automatically sets FXAA mode. Note that the parameters are overridden if a quality and mode are subsequently set using the setAntialiasing(float,AntialiasingMode) method.

NOTES

When the antialiasing parameters are modified a listener is called if it has been defined. See also setAntialiasingEventListener().
The caller is responsible for allocation and destruction of the advancedParameters object. SoSceneManager makes a copy of the parameter values, so the object can be destroyed after calling this method.

Parameters

advancedParameters Provides specific parameters for an antialiasing mode.
Use a null parameter to turn off antialiasing or use one of the subclasses of SoAntialiasingParameters.

◆ setAutoRedraw()

void SoXtRenderArea::setAutoRedraw ( SbBool trueOrFalse )

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

Passing FALSE will disable this feature.

◆ setBackgroundColor()

void SoXtRenderArea::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 (3 floats representing RGB values of the colors separated by space).

◆ setBackgroundIndex()

void SoXtRenderArea::setBackgroundIndex ( int index )

inline

Sets the window background color when in color index mode.

Default is black (index 0)).

Definition at line 198 of file SoXtRenderArea.h.

◆ setClearBeforeRender()

void SoXtRenderArea::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 287 of file SoXtRenderArea.h.

◆ setColorMap()

void SoXtRenderArea::setColorMap	(	int	startIndex,
		int	num,
		const SbColor *	colors
	)

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 SoXtRenderArea::setEventCallback	(	SoXtRenderAreaEventCB *	fcn,
		void *	userData = `NULL`
	)

X events 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 event (when viewers are not in viewing mode).

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

◆ setFastEditSavePolicy()

void SoXtRenderArea::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 fast edit scene graph won't be correct but redrawing may be much faster.

◆ setFloatingColorBuffer()

void SoXtRenderArea::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 SoXtRenderArea::setGLRenderAction ( SoGLRenderAction * ra )

Sets the GL render action to use.

This is used 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 SoXtRenderArea::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 SoXtRenderArea::setMPEGRecorder ( SoMPEGRenderer * recorder )

inlinevirtual

Sets the recorder used for MPEG encoding.

Default is none.

Parameters

recorder the recorder to be used.

Definition at line 460 of file SoXtRenderArea.h.

◆ setPostRenderCallback()

void SoXtRenderArea::setPostRenderCallback	(	SoXtRenderAreaRenderCB *	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 418 of file SoXtRenderArea.h.

◆ setRedrawPriority()

void SoXtRenderArea::setRedrawPriority ( uint32_t priority )

inline

Sets the priority of the redraw sensor.

Definition at line 316 of file SoXtRenderArea.h.

◆ setSceneGraph()

virtual void SoXtRenderArea::setSceneGraph ( SoNode * newScene )

virtual

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

Reimplemented in SoXtViewer.

◆ setSceneManager()

void SoXtRenderArea::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 SoXtRenderArea::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 SoXtRenderArea::setViewportRegion ( const SbViewportRegion & newRegion )

inline

Sets viewport region to use for rendering.

Definition at line 214 of file SoXtRenderArea.h.

◆ unregisterDevice()

void SoXtRenderArea::unregisterDevice ( SoXtDevice * 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:

Inventor/Xt/SoXtRenderArea.h

Open Inventor Release 2024.2.0

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

RESOURCES

SEE ALSO

Member Typedef Documentation

◆ SoXtRenderAreaEventCB

◆ SoXtRenderAreaRenderCB

Constructor & Destructor Documentation

◆ SoXtRenderArea()

◆ ~SoXtRenderArea()

Member Function Documentation

◆ getAntialiasing()

◆ getBackgroundColor()

◆ getBackgroundIndex()

◆ getDefaultRedrawPriority()

◆ getFastEditSavePolicy()

◆ getFloatingColorBuffer()

◆ getGLRenderAction()

◆ getInvalidateCacheMode()

◆ getMPEGRecorder()

◆ getPostRenderCallback()

◆ getRedrawPriority()

◆ getSceneGraph()

◆ getSceneManager()

◆ getShareContext()

◆ getTransparencyType()

◆ getViewportRegion()

◆ isAutoRedraw()

◆ isClearBeforeRender()

◆ isClearZBufferBeforeRender()

◆ redrawOnSelectionChange()

◆ registerDevice()

◆ render()

◆ scheduleRedraw()

◆ sendEvent()

◆ setAntialiasing() [1/3]

◆ setAntialiasing() [2/3]

◆ setAntialiasing() [3/3]

NOTES

◆ setAutoRedraw()

◆ setBackgroundColor()

◆ setBackgroundIndex()

◆ setClearBeforeRender()

◆ setColorMap()

◆ setEventCallback()

◆ setFastEditSavePolicy()

◆ setFloatingColorBuffer()

◆ setGLRenderAction()

◆ setInvalidateCacheMode()

◆ setMPEGRecorder()

◆ setPostRenderCallback()

◆ setRedrawPriority()

◆ setSceneGraph()

◆ setSceneManager()

◆ setTransparencyType()

◆ setViewportRegion()

◆ unregisterDevice()