openscenegraph
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#include <Drawable>
Classes | |
class | AttributeFunctor |
struct | ComputeBoundingBoxCallback |
class | ConstAttributeFunctor |
struct | CreateVertexArrayStateCallback |
struct | DrawCallback |
Public Types | |
enum | AttributeTypes { VERTICES = 0 , WEIGHTS = 1 , NORMALS = 2 , COLORS = 3 , SECONDARY_COLORS = 4 , FOG_COORDS = 5 , ATTRIBUTE_6 = 6 , ATTRIBUTE_7 = 7 , TEXTURE_COORDS = 8 , TEXTURE_COORDS_0 = TEXTURE_COORDS , TEXTURE_COORDS_1 = TEXTURE_COORDS_0+1 , TEXTURE_COORDS_2 = TEXTURE_COORDS_0+2 , TEXTURE_COORDS_3 = TEXTURE_COORDS_0+3 , TEXTURE_COORDS_4 = TEXTURE_COORDS_0+4 , TEXTURE_COORDS_5 = TEXTURE_COORDS_0+5 , TEXTURE_COORDS_6 = TEXTURE_COORDS_0+6 , TEXTURE_COORDS_7 = TEXTURE_COORDS_0+7 } |
typedef DrawableUpdateCallback | UpdateCallback |
typedef DrawableEventCallback | EventCallback |
typedef DrawableCullCallback | CullCallback |
typedef unsigned int | AttributeType |
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typedef std::vector< Group * > | ParentList |
typedef unsigned int | NodeMask |
typedef std::vector< std::string > | DescriptionList |
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enum | DataVariance { DYNAMIC , STATIC , UNSPECIFIED } |
Public Member Functions | |
Drawable () | |
Drawable (const Drawable &drawable, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
META_Node (osg, Drawable) | |
virtual Drawable * | asDrawable () |
virtual const Drawable * | asDrawable () const |
virtual void | computeDataVariance () |
MatrixList | getWorldMatrices (const osg::Node *haltTraversalAtNode=0) const |
void | setInitialBound (const osg::BoundingBox &bbox) |
const BoundingBox & | getInitialBound () const |
const BoundingSphere & | getBound () const |
const BoundingBox & | getBoundingBox () const |
virtual BoundingSphere | computeBound () const |
virtual BoundingBox | computeBoundingBox () const |
void | setComputeBoundingBoxCallback (ComputeBoundingBoxCallback *callback) |
ComputeBoundingBoxCallback * | getComputeBoundingBoxCallback () |
const ComputeBoundingBoxCallback * | getComputeBoundingBoxCallback () const |
virtual void | setShape (Shape *shape) |
template<class T > | |
void | setShape (const ref_ptr< T > &shape) |
Shape * | getShape () |
const Shape * | getShape () const |
void | setSupportsDisplayList (bool flag) |
bool | getSupportsDisplayList () const |
void | setUseDisplayList (bool flag) |
bool | getUseDisplayList () const |
GLuint & | getDisplayList (unsigned int contextID) const |
virtual void | setUseVertexBufferObjects (bool flag) |
bool | getUseVertexBufferObjects () const |
void | setUseVertexArrayObject (bool flag) |
bool | getUseVertexArrayObject () const |
virtual void | dirtyGLObjects () |
virtual unsigned int | getGLObjectSizeHint () const |
void | draw (RenderInfo &renderInfo) const |
void | drawInner (RenderInfo &renderInfo) const |
virtual void | compileGLObjects (RenderInfo &renderInfo) const |
void | setCreateVertexArrayStateCallback (CreateVertexArrayStateCallback *cb) |
CreateVertexArrayStateCallback * | getCreateVertexArrayStateCallback () |
const CreateVertexArrayStateCallback * | getCreateVertexArrayStateCallback () const |
VertexArrayState * | createVertexArrayState (RenderInfo &renderInfo) const |
virtual VertexArrayState * | createVertexArrayStateImplementation (RenderInfo &renderInfo) const |
void | setVertexArrayStateList (VertexArrayStateList &vasl) |
VertexArrayStateList & | getVertexArrayStateList () |
const VertexArrayStateList & | getVertexArrayStateList () const |
virtual void | setThreadSafeRefUnref (bool threadSafe) |
virtual void | resizeGLObjectBuffers (unsigned int maxSize) |
virtual void | releaseGLObjects (State *state=0) const |
virtual void | setDrawCallback (DrawCallback *dc) |
DrawCallback * | getDrawCallback () |
const DrawCallback * | getDrawCallback () const |
virtual void | drawImplementation (RenderInfo &) const |
virtual bool | supports (const AttributeFunctor &) const |
virtual void | accept (AttributeFunctor &) |
virtual bool | supports (const ConstAttributeFunctor &) const |
virtual void | accept (ConstAttributeFunctor &) const |
virtual bool | supports (const PrimitiveFunctor &) const |
virtual void | accept (PrimitiveFunctor &) const |
virtual bool | supports (const PrimitiveIndexFunctor &) const |
virtual void | accept (PrimitiveIndexFunctor &) const |
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Node () | |
Node (const Node &, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
virtual Object * | cloneType () const |
virtual Object * | clone (const CopyOp ©op) const |
virtual bool | isSameKindAs (const Object *obj) const |
virtual const char * | libraryName () const |
virtual const char * | className () const |
virtual Node * | asNode () |
virtual const Node * | asNode () const |
virtual Geometry * | asGeometry () |
virtual const Geometry * | asGeometry () const |
virtual Group * | asGroup () |
virtual const Group * | asGroup () const |
virtual Transform * | asTransform () |
virtual const Transform * | asTransform () const |
virtual Switch * | asSwitch () |
virtual const Switch * | asSwitch () const |
virtual Geode * | asGeode () |
virtual const Geode * | asGeode () const |
virtual osgTerrain::Terrain * | asTerrain () |
virtual const osgTerrain::Terrain * | asTerrain () const |
virtual void | accept (NodeVisitor &nv) |
virtual void | ascend (NodeVisitor &nv) |
virtual void | traverse (NodeVisitor &) |
const ParentList & | getParents () const |
ParentList | getParents () |
Group * | getParent (unsigned int i) |
const Group * | getParent (unsigned int i) const |
unsigned int | getNumParents () const |
NodePathList | getParentalNodePaths (osg::Node *haltTraversalAtNode=0) const |
MatrixList | getWorldMatrices (const osg::Node *haltTraversalAtNode=0) const |
void | setUpdateCallback (Callback *nc) |
template<class T > | |
void | setUpdateCallback (const ref_ptr< T > &nc) |
Callback * | getUpdateCallback () |
const Callback * | getUpdateCallback () const |
void | addUpdateCallback (Callback *nc) |
template<class T > | |
void | addUpdateCallback (const ref_ptr< T > &nc) |
void | removeUpdateCallback (Callback *nc) |
template<class T > | |
void | removeUpdateCallback (const ref_ptr< T > &nc) |
unsigned int | getNumChildrenRequiringUpdateTraversal () const |
void | setEventCallback (Callback *nc) |
template<class T > | |
void | setEventCallback (const ref_ptr< T > &nc) |
Callback * | getEventCallback () |
const Callback * | getEventCallback () const |
void | addEventCallback (Callback *nc) |
template<class T > | |
void | addEventCallback (const ref_ptr< T > &nc) |
void | removeEventCallback (Callback *nc) |
template<class T > | |
void | removeEventCallback (const ref_ptr< T > &nc) |
unsigned int | getNumChildrenRequiringEventTraversal () const |
void | setCullCallback (Callback *nc) |
template<class T > | |
void | setCullCallback (const ref_ptr< T > &nc) |
Callback * | getCullCallback () |
const Callback * | getCullCallback () const |
void | addCullCallback (Callback *nc) |
template<class T > | |
void | addCullCallback (const ref_ptr< T > &nc) |
void | removeCullCallback (Callback *nc) |
template<class T > | |
void | removeCullCallback (const ref_ptr< T > &nc) |
void | setCullingActive (bool active) |
bool | getCullingActive () const |
unsigned int | getNumChildrenWithCullingDisabled () const |
bool | isCullingActive () const |
unsigned int | getNumChildrenWithOccluderNodes () const |
bool | containsOccluderNodes () const |
void | setNodeMask (NodeMask nm) |
NodeMask | getNodeMask () const |
void | setStateSet (osg::StateSet *stateset) |
template<class T > | |
void | setStateSet (const osg::ref_ptr< T > &stateset) |
osg::StateSet * | getOrCreateStateSet () |
osg::StateSet * | getStateSet () |
const osg::StateSet * | getStateSet () const |
void | setDescriptions (const DescriptionList &descriptions) |
DescriptionList & | getDescriptions () |
const DescriptionList & | getDescriptions () const |
const std::string & | getDescription (unsigned int i) const |
std::string & | getDescription (unsigned int i) |
unsigned int | getNumDescriptions () const |
void | addDescription (const std::string &desc) |
void | setInitialBound (const osg::BoundingSphere &bsphere) |
const BoundingSphere & | getInitialBound () const |
void | dirtyBound () |
const BoundingSphere & | getBound () const |
void | setComputeBoundingSphereCallback (ComputeBoundingSphereCallback *callback) |
template<class T > | |
void | setComputeBoundingSphereCallback (const ref_ptr< T > &callback) |
ComputeBoundingSphereCallback * | getComputeBoundingSphereCallback () |
const ComputeBoundingSphereCallback * | getComputeBoundingSphereCallback () const |
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Object () | |
Object (bool threadSafeRefUnref) | |
Object (const Object &, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
std::string | getCompoundClassName () const |
virtual NodeVisitor * | asNodeVisitor () |
virtual const NodeVisitor * | asNodeVisitor () const |
virtual StateSet * | asStateSet () |
virtual const StateSet * | asStateSet () const |
virtual StateAttribute * | asStateAttribute () |
virtual const StateAttribute * | asStateAttribute () const |
virtual Uniform * | asUniform () |
virtual const Uniform * | asUniform () const |
virtual Camera * | asCamera () |
virtual const Camera * | asCamera () const |
virtual Callback * | asCallback () |
virtual const Callback * | asCallback () const |
virtual CallbackObject * | asCallbackObject () |
virtual const CallbackObject * | asCallbackObject () const |
virtual UserDataContainer * | asUserDataContainer () |
virtual const UserDataContainer * | asUserDataContainer () const |
virtual ValueObject * | asValueObject () |
virtual const ValueObject * | asValueObject () const |
virtual Image * | asImage () |
virtual const Image * | asImage () const |
virtual void | setName (const std::string &name) |
void | setName (const char *name) |
const std::string & | getName () const |
void | setDataVariance (DataVariance dv) |
DataVariance | getDataVariance () const |
void | setUserDataContainer (osg::UserDataContainer *udc) |
template<class T > | |
void | setUserDataContainer (const ref_ptr< T > &udc) |
osg::UserDataContainer * | getUserDataContainer () |
const osg::UserDataContainer * | getUserDataContainer () const |
osg::UserDataContainer * | getOrCreateUserDataContainer () |
virtual void | setUserData (Referenced *obj) |
template<class T > | |
void | setUserData (const ref_ptr< T > &ud) |
virtual Referenced * | getUserData () |
virtual const Referenced * | getUserData () const |
template<typename T > | |
bool | getUserValue (const std::string &name, T &value) const |
template<typename T > | |
void | setUserValue (const std::string &name, const T &value) |
template<typename T > | |
BoolValueObject UCharValueObject UShortValueObject UIntValueObject DoubleValueObject Vec3fValueObject Vec2dValueObject Vec4dValueObject PlaneValueObject MatrixdValueObject BoundingBoxdValueObject BoundingSpheredValueObject bool | getUserValue (const std::string &name, T &value) const |
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Referenced () | |
Referenced (bool threadSafeRefUnref) | |
Referenced (const Referenced &) | |
Referenced & | operator= (const Referenced &) |
bool | getThreadSafeRefUnref () const |
OpenThreads::Mutex * | getRefMutex () const |
int | ref () const |
int | unref () const |
int | unref_nodelete () const |
int | referenceCount () const |
ObserverSet * | getObserverSet () const |
ObserverSet * | getOrCreateObserverSet () const |
void | addObserver (Observer *observer) const |
void | removeObserver (Observer *observer) const |
Static Public Member Functions | |
static GLuint | generateDisplayList (unsigned int contextID, unsigned int sizeHint=0) |
static void | deleteDisplayList (unsigned int contextID, GLuint globj, unsigned int sizeHint=0) |
static void | setMinimumNumberOfDisplayListsToRetainInCache (unsigned int minimum) |
static unsigned int | getMinimumNumberOfDisplayListsToRetainInCache () |
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static OpenThreads::Mutex * | getGlobalReferencedMutex () |
static void | setDeleteHandler (DeleteHandler *handler) |
static DeleteHandler * | getDeleteHandler () |
Protected Types | |
typedef osg::buffered_value< GLuint > | GLObjectList |
Protected Member Functions | |
Drawable & | operator= (const Drawable &) |
virtual | ~Drawable () |
void | setBound (const BoundingBox &bb) const |
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virtual | ~Node () |
void | addParent (osg::Group *parent) |
void | removeParent (osg::Group *parent) |
void | setNumChildrenRequiringUpdateTraversal (unsigned int num) |
void | setNumChildrenRequiringEventTraversal (unsigned int num) |
void | setNumChildrenWithCullingDisabled (unsigned int num) |
void | setNumChildrenWithOccluderNodes (unsigned int num) |
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virtual | ~Object () |
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virtual | ~Referenced () |
void | signalObserversAndDelete (bool signalDelete, bool doDelete) const |
void | deleteUsingDeleteHandler () const |
Friends | |
class | Node |
class | Geode |
class | StateSet |
Pure virtual base class for drawable geometry. In OSG, everything that can be rendered is implemented as a class derived from Drawable
. The Drawable
class contains no drawing primitives, since these are provided by subclasses such as osg::Geometry
.
Notice that a Drawable
is not a Node
, and therefore it cannot be directly added to a scene graph. Instead, Drawable
s are attached to Geode
s, which are scene graph nodes.
The OpenGL state that must be used when rendering a Drawable
is represented by a StateSet
. Since a Drawable
has a reference (osg::ref_ptr
) to a StateSet
, StateSet
s can be shared between different Drawable
s. In fact, sharing StateSet
s is a good way to improve performance, since this allows OSG to reduce the number of expensive changes in the OpenGL state.
Finally, Drawable
s can also be shared between different Geode
s, so that the same geometry (loaded to memory just once) can be used in different parts of the scene graph.
typedef unsigned int osg::Drawable::AttributeType |
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osg::Drawable::Drawable | ( | ) |
osg::Drawable::Drawable | ( | const Drawable & | drawable, |
const CopyOp & | copyop = CopyOp::SHALLOW_COPY |
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Copy constructor using CopyOp to manage deep vs shallow copy.
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accept an AttributeFunctor and call its methods to tell it about the internal attributes that this Drawable has. return true if functor handled by drawable, return false on failure of drawable to generate functor calls.
Reimplemented in osg::Geometry, osgTerrain::SharedGeometry, and osgTerrain::HeightFieldDrawable.
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Accept an AttributeFunctor and call its methods to tell it about the internal attributes that this Drawable has. return true if functor handled by drawable, return false on failure of drawable to generate functor calls.
Reimplemented in osg::Geometry, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, osgText::Text, and osgText::Text3D.
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Accept a PrimitiveFunctor and call its methods to tell it about the internal primitives that this Drawable has. return true if functor handled by drawable, return false on failure of drawable to generate functor calls. Note, PrimitiveFunctor only provides const access of the primitives, as primitives may be procedurally generated so one cannot modify it.
Reimplemented in osgParticle::PrecipitationEffect::PrecipitationDrawable, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, osgText::Text, osgText::Text3D, and osg::Geometry.
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Accept a PrimitiveIndexFunctor and call its methods to tell it about the internal primitives that this Drawable has. return true if functor handled by drawable, return false on failure of drawable to generate functor calls. Note, PrimitiveIndexFunctor only provide const access of the primitives, as primitives may be procedurally generated so one cannot modify it.
Reimplemented in osgParticle::PrecipitationEffect::PrecipitationDrawable, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, and osg::Geometry.
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Immediately compile this Drawable
into an OpenGL Display List/VertexBufferObjects.
_useDisplayList
is false
or VertexBufferObjects are not used. Reimplemented in osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, osgText::TextBase, osg::DispatchCompute, and osg::Geometry.
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Compute the bounding sphere around Drawables's geometry.
Reimplemented from osg::Node.
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Compute the bounding box around Drawables's geometry.
Reimplemented in osg::DrawPixels, osgParticle::ParticleSystem, osgText::Text3D, and osgText::TextBase.
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Compute the DataVariance based on an assessment of callback etc.
Reimplemented from osg::Object.
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Create the VertexArrayState object used to track vertex array and vertex array object state. This method will be called automatically during rendering setup so users should not call this themselves.
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Implementation of Create the VertexArrayState object.
Reimplemented in osgParticle::ParticleSystem, osgTerrain::SharedGeometry, osgText::TextBase, and osg::Geometry.
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Use deleteDisplayList instead of glDeleteList to allow OpenGL display list to be cached until they can be deleted by the OpenGL context in which they were created, specified by contextID.
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Force a recompile on next draw() of any OpenGL objects associated with this geoset.
Reimplemented in osg::Geometry.
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Draw OpenGL primitives. If the Drawable
has _useDisplayList
set to true
, then use an OpenGL display list, automatically compiling one if required. Otherwise, call drawImplementation()
.
virtual
). Subclasses should override drawImplementation()
instead.
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drawImplementation(RenderInfo&) is a pure virtual method for the actual implementation of OpenGL drawing calls, such as vertex arrays and primitives, that must be implemented in concrete subclasses of the Drawable base class, examples include osg::Geometry and osg::ShapeDrawable. drawImplementation(RenderInfo&) is called from the draw(RenderInfo&) method, with the draw method handling management of OpenGL display lists, and drawImplementation(RenderInfo&) handling the actual drawing itself. renderInfo : The osg::RenderInfo object that encapsulates the current rendering information including the osg::State OpenGL state for the current graphics context.
Reimplemented in osg::QueryGeometry, osgParticle::ConnectedParticleSystem, osgParticle::ParticleSystem, osgParticle::PrecipitationEffect::PrecipitationDrawable, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, osgText::FadeText, osgText::Text, osgText::Text3D, osg::DispatchCompute, osg::DrawPixels, and osg::Geometry.
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Return a OpenGL display list handle a newly generated or reused from display list cache.
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Get BoundingBox of Drawable. If the BoundingBox is not up to date then its updated via an internal call to computeBond().
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Get the compute bound callback.
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Get the const compute bound callback.
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Get the callback that overrides the default Drawable::createCreateVertexArrayStateImplementation().
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Get the const callback that overrides the default Drawable::createCreateVertexArrayStateImplementation().
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Return OpenGL display list for specified contextID.
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Get the non const DrawCallback.
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Get the const DrawCallback.
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Return the estimated size of GLObjects (display lists/vertex buffer objects) that are associated with this drawable. This size is used a hint for reuse of deleted display lists/vertex buffer objects.
Reimplemented in osg::Geometry.
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Set the initial bounding volume to use when computing the overall bounding volume.
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Get the minimum number of display lists to retain in the deleted display list cache.
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Get whether display lists are supported for this drawable instance.
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Return whether OpenGL display lists are being used for rendering.
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Return whether to use a local VertexArrayObject for this Drawable.
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Return whether OpenGL vertex buffer objects should be used when supported by OpenGL driver.
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MatrixList osg::Drawable::getWorldMatrices | ( | const osg::Node * | haltTraversalAtNode = 0 | ) | const |
Get the list of matrices that transform this node from local coordinates to world coordinates. The optional Node* haltTraversalAtNode allows the user to prevent traversal beyond a specified node.
osg::Drawable::META_Node | ( | osg | , |
Drawable | |||
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If State is non-zero, this function releases OpenGL objects for the specified graphics context. Otherwise, releases OpenGL objects for all graphics contexts.
Reimplemented from osg::Node.
Reimplemented in osgParticle::PrecipitationEffect::PrecipitationDrawable, osgTerrain::SharedGeometry, osg::QueryGeometry, osgParticle::ParticleSystem, osgTerrain::HeightFieldDrawable, osgText::Text, osgText::Text3D, osgText::TextBase, and osg::Geometry.
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Resize any per context GLObject buffers to specified size.
Reimplemented from osg::Node.
Reimplemented in osg::Geometry, osgParticle::ParticleSystem, osgParticle::PrecipitationEffect::PrecipitationDrawable, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, osgText::Text, osgText::Text3D, and osgText::TextBase.
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set the bounding box .
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Set the compute bound callback to override the default computeBound.
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Set the callback to override the default Drawable::createCreateVertexArrayStateImplementation().
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Set the DrawCallback which allows users to attach customize the drawing of existing Drawable object.
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Set the initial bounding volume to use when computing the overall bounding volume.
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Set the minimum number of display lists to retain in the deleted display list cache.
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Set the Shape of the Drawable
. The shape can be used to speed up collision detection or as a guide for procedural geometry generation.
Reimplemented in osg::ShapeDrawable.
void osg::Drawable::setSupportsDisplayList | ( | bool | flag | ) |
Set the drawable so that it can or cannot be used in conjunction with OpenGL display lists. When set to true, calls to Drawable::setUseDisplayList, whereas when set to false, no display lists can be created and calls to setUseDisplayList are ignored, and a warning is produced. The latter is typically used to guard against the switching on of display lists on objects with dynamic internal data such as continuous Level of Detail algorithms.
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void osg::Drawable::setUseDisplayList | ( | bool | flag | ) |
When set to true, force the draw method to use OpenGL Display List for rendering. If false, rendering directly. If the display list has not been compiled already, the next call to draw will automatically create the display list.
void osg::Drawable::setUseVertexArrayObject | ( | bool | flag | ) |
Set whether to use a local VertexArrayObject for this Drawable.
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When set to true, ignore the setUseDisplayList() settings, and hints to the drawImplementation method to use OpenGL vertex buffer objects for rendering.
Reimplemented in osg::Geometry.
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Return true if the Drawable subclass supports accept(AttributeFunctor&).
Reimplemented in osg::Geometry, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, osgText::Text, and osgText::Text3D.
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Return true if the Drawable subclass supports accept(ConstAttributeFunctor&).
Reimplemented in osg::Geometry, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, osgText::Text, and osgText::Text3D.
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Return true if the Drawable subclass supports accept(PrimitiveFunctor&).
Reimplemented in osgParticle::PrecipitationEffect::PrecipitationDrawable, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, osgText::Text, osgText::Text3D, and osg::Geometry.
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Return true if the Drawable subclass supports accept(PrimitiveIndexFunctor&).
Reimplemented in osgParticle::PrecipitationEffect::PrecipitationDrawable, osgTerrain::SharedGeometry, osgTerrain::HeightFieldDrawable, and osg::Geometry.
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