Groups multiple volumes to be volume rendered in the same scene. More...
#include <VolumeViz/nodes/SoVolumeGroup.h>
Public Member Functions | |
virtual SoType | getTypeId () const |
Returns the type identifier for this specific instance. | |
SoVolumeGroup () | |
Constructor. | |
Public Member Functions inherited from SoSeparator | |
SoSeparator () | |
Creates a separator node with default settings. | |
SoSeparator (int nChildren) | |
Constructor that takes approximate number of children. | |
Public Member Functions inherited from SoGroup | |
SoGroup () | |
Creates an empty group node. | |
SoGroup (int nChildren) | |
Constructor that takes approximate number of children. | |
virtual void | addChild (SoNode *child) |
Adds a child as last one in group. | |
virtual void | insertChild (SoNode *child, int newChildIndex) |
Adds a child so that it becomes the one with the given index. | |
virtual SoNode * | getChild (int index) const |
Returns pointer the child node with the given index. | |
virtual int | findChild (const SoNode *child) const |
Finds index of given child within group. | |
virtual int | getNumChildren () const |
Returns number of children. | |
virtual void | removeChild (int index) |
Removes child with given index from group. | |
virtual void | removeChild (SoNode *child) |
Removes first instance of given child from group. | |
virtual void | removeAllChildren () |
Removes all children from group. | |
virtual void | replaceChild (int index, SoNode *newChild) |
Replaces child with given index with new child. | |
virtual void | replaceChild (SoNode *oldChild, SoNode *newChild) |
Replaces first instance of given child with new child. | |
Public Member Functions inherited from SoNode | |
virtual void | setOverride (const SbBool state) |
Turns the override flag on or off. | |
virtual SbBool | isOverride () const |
Returns the state of the override flag. | |
virtual SoNode * | copy (SbBool copyConnections=FALSE) const |
Creates and returns an exact copy of the node. | |
virtual void | touch () |
Marks an instance as modified, simulating a change to it. | |
Public Member Functions inherited from SoFieldContainer | |
void | setToDefaults () |
Sets all fields in this object to their default values. | |
SbBool | hasDefaultValues () const |
Returns TRUE if all of the object's fields have their default values. | |
SbBool | fieldsAreEqual (const SoFieldContainer *fc) const |
Returns TRUE if this object's fields are exactly equal to fc's fields. | |
void | copyFieldValues (const SoFieldContainer *fc, SbBool copyConnections=FALSE) |
Copies the contents of fc's fields into this object's fields. | |
SoNONUNICODE SbBool | set (const char *fieldDataString) |
Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format. | |
SbBool | set (const SbString &fieldDataString) |
Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format. | |
void | get (SbString &fieldDataString) |
Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string. | |
virtual int | getFields (SoFieldList &list) const |
Appends references to all of this object's fields to resultList, and returns the number of fields appended. | |
virtual int | getAllFields (SoFieldList &list) const |
Returns a list of fields, including the eventIn's and eventOut's. | |
virtual SoField * | getField (const SbName &fieldName) const |
Returns a the field of this object whose name is fieldName. | |
virtual SoField * | getEventIn (const SbName &fieldName) const |
Returns a the eventIn with the given name. | |
virtual SoField * | getEventOut (const SbName &fieldName) const |
Returns the eventOut with the given name. | |
SbBool | getFieldName (const SoField *field, SbName &fieldName) const |
Returns the name of the given field in the fieldName argument. | |
SbBool | enableNotify (SbBool flag) |
Notification at this Field Container is enabled (if flag == TRUE) or disabled (if flag == FALSE). | |
SbBool | isNotifyEnabled () const |
Notification is the process of telling interested objects that this object has changed. | |
virtual void | setUserData (void *data) |
Sets application data. | |
void * | getUserData (void) const |
Gets user application data. | |
Public Member Functions inherited from SoBase | |
virtual SbName | getName () const |
Returns the name of an instance. | |
virtual void | setName (const SbName &name) |
Sets the name of an instance. | |
void | setSynchronizable (const bool b) |
Sets this to be a ScaleViz synchronizable object. | |
bool | isSynchronizable () const |
Gets the ScaleViz synchronizable state of this object. | |
Public Member Functions inherited from SoRefCounter | |
void | ref () const |
Adds a reference to an instance. | |
void | unref () const |
Removes a reference from an instance. | |
void | unrefNoDelete () const |
unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero. | |
int | getRefCount () const |
Returns current reference count. | |
void | lock () const |
lock this instance. | |
void | unlock () const |
unlock this instance. | |
Public Member Functions inherited from SoTypedObject | |
SbBool | isOfType (const SoType &type) const |
Returns TRUE if this object is of the type specified in type or is derived from that type. | |
template<typename TypedObjectClass > | |
SbBool | isOfType () const |
Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class. | |
Static Public Member Functions | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Static Public Member Functions inherited from SoSeparator | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Static Public Member Functions inherited from SoGroup | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Static Public Member Functions inherited from SoNode | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
static SoNode * | getByName (const SbName &name) |
A node's name can be set using SoBase::setName(). | |
static int | getByName (const SbName &name, SoNodeList &list) |
A node's name can be set using SoBase::setName(). | |
Static Public Member Functions inherited from SoFieldContainer | |
static SoType | getClassTypeId () |
Returns the type of this class. | |
Static Public Member Functions inherited from SoBase | |
static SoType | getClassTypeId () |
Returns type identifier for this class. | |
Static Public Member Functions inherited from SoTypedObject | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Public Attributes | |
SoSFBool | multiVolumes |
Activates the multi-volumes feature. | |
Public Attributes inherited from SoSeparator | |
SoSFEnum | boundingBoxCaching |
Whether to cache during bounding box traversal. | |
SoSFEnum | renderCulling |
Whether to cull during rendering traversal. | |
SoSFEnum | pickCulling |
Whether to cull during picking traversal. | |
SoSFEnum | fastEditing |
Specifies the fast edit mode of the separator node. | |
SoSFInt32 | renderUnitId |
Used during the ScaleViz depth compositing process, this field specifies which render unit (OIRU) will render the sub scene graph below this separator. | |
SoDEPRECATED SoSFEnum | renderCaching |
Whether to cache during rendering traversal. | |
Public Attributes inherited from SoGroup | |
SoSFBool | boundingBoxIgnoring |
Whether to ignore this node during bounding box traversal. | |
Additional Inherited Members | |
Public Types inherited from SoSeparator | |
enum | CacheEnabled { OFF , ON , AUTO } |
Possible values for caching. More... | |
enum | FastEditing { DISABLE = 0x01 , KEEP_ZBUFFER = 0x02 , CLEAR_ZBUFFER = 0x03 } |
Fast editing policy enumeration values. More... | |
Groups multiple volumes to be volume rendered in the same scene.
The SoVolumeGroup node allows multiple volumes to be volume rendered (SoVolumeRender) correctly in the same scene. All SoVolumeRender nodes that are under an active SoVolumeGroup node (multiVolumes=TRUE) are rendered together with correct blending, subject to some limitations. Other VolumeViz geometry objects, for example SoOrthoSlice, are not affected by SoVolumeGroup.
The SoVolumeRender nodes can represent different volume data sets (see SoVolumeData) or different subvolumes (see SoROI) of the same volume data set.
This node forces the use of view-aligned slices for SoVolumeRender nodes that will be composed. It doesn't, however, actually modify the SoVolumeRender::samplingAlignment fields. Rather the values of these fields are ignored during traversal.
The multiVolumes field (TRUE by default) controls whether the SoVolumeGroup's special handling of SoVolumeRender nodes is applied. If the (sub)volumes being rendered do not overlap in 3D space or only one of the volumes is transparent, then SoVolumeGroup special handling is automatically disabled.
SoVolumeGroup is primarily intended for cases where the volumes are sampled on different grids. For example if the volume dimension, size (3D extent) or orientation are different. For volumes that are actually multiple data sets sampled on the same grid, for example seismic attribute volumes, it may be more appropriate to blend the volumes using an SoDataCompositor or SoVolumeShader node.
Since OIV 9.3, EdgeDetection (Gradient, Luminance, Depth) and LowResMode (DECREASE_SCREEN_RESOLUTION) effects are supported. These post process effects need to be applied to all or none of the volumes. If all fields corresponding to an effect are the same for each volume, the effect is activated. If fields are different then default value is used.
Limitations:
multiVolumes | TRUE |
SoGetBoundingBoxAction
Computes the bounding box that encloses the volume.
SoVolumeRender, SoSeparator, SoDataCompositor, SoVolumeShader
Definition at line 124 of file SoVolumeGroup.h.
SoVolumeGroup::SoVolumeGroup | ( | ) |
Constructor.
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static |
Returns the type identifier for this class.
|
virtual |
Returns the type identifier for this specific instance.
Reimplemented from SoSeparator.
SoSFBool SoVolumeGroup::multiVolumes |
Activates the multi-volumes feature.
Default is TRUE. If set to FALSE, behaves as a regular SoGroup.
Definition at line 133 of file SoVolumeGroup.h.