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Added new Node/Drawable::s/getInitialBound and Node/Drawable::s/getComputeBoundCallback

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methods and reimplement computeBound so that it passes back a bounding volume rather
than modifying the local one.
This commit is contained in:
Robert Osfield 2005-05-12 14:03:22 +00:00
parent ad2bd31ac8
commit bf4d63f6ea
52 changed files with 337 additions and 377 deletions
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23
applications/osgconv/GeoSet.cpp
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@ -418,11 +418,11 @@ void GeoSet::computeNumVerts() const
// just use the base Drawable's PrimitiveFunctor based implementation.
bool GeoSet::computeBound() const
osg::BoundingBox GeoSet::computeBound() const
{
_bbox.init();
osg::BoundingBox bbox;
if( _iaformat == IA_OFF && _coords == (Vec3 *)0 ) return false;
if( _iaformat == IA_OFF && _coords == (Vec3 *)0 ) return bbox;
if( _numcoords == 0 )
{
@ -430,7 +430,7 @@ bool GeoSet::computeBound() const
}
if( _numcoords == 0 )
return false;
return bbox;
Vec3 center(0.0f,0.0f,0.0f);
@ -442,7 +442,7 @@ bool GeoSet::computeBound() const
for( i = 0; i < int(_cindex._size); i++ )
{
center += _coords[_cindex[i]];
_bbox.expandBy(_coords[_cindex[i]]);
bbox.expandBy(_coords[_cindex[i]]);
}
}
else
@ -450,7 +450,7 @@ bool GeoSet::computeBound() const
for( i = 0; i < _numcoords; i++ )
{
center += _coords[i];
_bbox.expandBy(_coords[i]);
bbox.expandBy(_coords[i]);
}
}
}
@ -474,7 +474,7 @@ bool GeoSet::computeBound() const
_iaformat == IA_T4F_C4F_N3F_V4F ? 15 : -1;
if( stride == -1 ) // INTERNAL ERROR!!
return false;
return bbox;
int offset =
_iaformat == IA_V2F ? 0 :
@ -518,7 +518,7 @@ bool GeoSet::computeBound() const
float z = ncomp >= 3 ? fptr[2] : 0.0f;
Vec3 vv(x,y,z);
center += vv;
_bbox.expandBy(vv);
bbox.expandBy(vv);
fptr += stride;
}
@ -526,9 +526,7 @@ bool GeoSet::computeBound() const
center /= (float)_numcoords;
_bbox_computed=true;
return true;
return bbox;
}
bool GeoSet::checkConsistency() const
@ -653,7 +651,6 @@ void GeoSet::setNormals( Vec3 *cp, IndexPointer& ip )
{
_normals = cp;
_nindex = ip;
_bbox_computed = false;
if( _normal_binding == BIND_OFF )
setNormalBinding( BIND_DEFAULT );
}
@ -692,7 +689,6 @@ void GeoSet::setColors( Vec4 *cp, IndexPointer& ip )
{
_colors = cp;
_colindex = ip;
_bbox_computed = false;
if( _color_binding == BIND_OFF )
setColorBinding( BIND_DEFAULT );
}
@ -733,7 +729,6 @@ void GeoSet::setTextureCoords( Vec2 *cp, IndexPointer& ip )
{
_tcoords = cp;
_tindex = ip;
_bbox_computed = false;
if( _texture_binding == BIND_OFF )
setTextureBinding( BIND_DEFAULT );
}

4
applications/osgconv/GeoSet.h
View File

@ -360,14 +360,14 @@ class GeoSet : public Drawable
/** convinience function for converting GeoSet's to equivilant Geometry nodes.*/
Geometry* convertToGeometry();
virtual osg::BoundingBox computeBound() const;
protected:
GeoSet& operator = (const GeoSet&) { return *this;}
virtual ~GeoSet();
virtual bool computeBound() const;
ref_ptr<AttributeDeleteFunctor> _adf;
int _numprims;

24
examples/osgteapot/osgteapot.cpp
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@ -226,15 +226,11 @@ class Teapot : public osg::Drawable
}
protected:
virtual ~Teapot() {}
// we need to set up the bounding box of the data too, so that the scene graph knows where this
// objects is, for both positioning the camera at start up, and most importantly for culling.
virtual bool computeBound() const
virtual osg::BoundingBox computeBound() const
{
_bbox.init();
osg::BoundingBox bbox;
// follow is some truely horrible code required to calculate the
// bounding box of the teapot. Have used the original code above to do
@ -265,13 +261,13 @@ class Teapot : public osg::Drawable
}
}
_bbox.expandBy(osg::Vec3(p[j][k][0],p[j][k][1],p[j][k][2]));
_bbox.expandBy(osg::Vec3(q[j][k][0],q[j][k][1],q[j][k][2]));
bbox.expandBy(osg::Vec3(p[j][k][0],p[j][k][1],p[j][k][2]));
bbox.expandBy(osg::Vec3(q[j][k][0],q[j][k][1],q[j][k][2]));
if (i < 6)
{
_bbox.expandBy(osg::Vec3(r[j][k][0],r[j][k][1],r[j][k][2]));
_bbox.expandBy(osg::Vec3(s[j][k][0],s[j][k][1],s[j][k][2]));
bbox.expandBy(osg::Vec3(r[j][k][0],r[j][k][1],r[j][k][2]));
bbox.expandBy(osg::Vec3(s[j][k][0],s[j][k][1],s[j][k][2]));
}
@ -279,9 +275,13 @@ class Teapot : public osg::Drawable
}
}
_bbox_computed = true;
return true;
return bbox;
}
protected:
virtual ~Teapot() {}
};

4
include/osg/Billboard
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@ -97,12 +97,12 @@ class OSG_EXPORT Billboard : public Geode
bool computeMatrix(Matrix& modelview, const Vec3& eye_local, const Vec3& pos_local) const;
virtual BoundingSphere computeBound() const;
protected:
virtual ~Billboard();
virtual bool computeBound() const;
enum AxisAligned
{
AXIAL_ROT_X_AXIS=AXIAL_ROT+1,

6
include/osg/BoundingSphere
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@ -40,6 +40,12 @@ class OSG_EXPORT BoundingSphere
/** Creates a bounding sphere initialized to the given extents. */
BoundingSphere(const Vec3& center,float radius) : _center(center),_radius(radius) {}
/** Creates a bounding sphere initialized to the given extents. */
BoundingSphere(const BoundingSphere& bs) : _center(bs._center),_radius(bs._radius) {}
/** Creates a bounding sphere initialized to the given extents. */
BoundingSphere(const BoundingBox& bb) : _center(0.0f,0.0f,0.0f),_radius(-1.0f) { expandBy(bb); }
/** Clear the bounding sphere. Reset to default values. */
inline void init()
{

4
include/osg/ClipNode
View File

@ -75,12 +75,12 @@ class OSG_EXPORT ClipNode : public Group
/** Set up the local StateSet. */
void setLocalStateSetModes(StateAttribute::GLModeValue=StateAttribute::ON);
virtual BoundingSphere computeBound() const;
protected:
virtual ~ClipNode();
virtual bool computeBound() const;
StateAttribute::GLModeValue _value;
ClipPlaneList _planes;
};

3
include/osg/DrawPixels
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@ -59,6 +59,7 @@ class OSG_EXPORT DrawPixels : public Drawable
virtual void drawImplementation(State& state) const;
virtual BoundingBox computeBound() const;
protected:
@ -66,8 +67,6 @@ class OSG_EXPORT DrawPixels : public Drawable
virtual ~DrawPixels();
virtual bool computeBound() const;
Vec3 _position;
ref_ptr<Image> _image;

48
include/osg/Drawable
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@ -149,6 +149,12 @@ class OSG_EXPORT Drawable : public Object
StateSet* getOrCreateStateSet();
/** Set the intial bounding volume to use when computing the overall bounding volume.*/
void setInitialBound(const osg::BoundingBox& bbox) { _initialBound = bbox; dirtyBound(); }
/** Set the intial bounding volume to use when computing the overall bounding volume.*/
const BoundingBox& getInitialBound() const { return _initialBound; }
/** Dirty the bounding box, forcing a computeBound() on the next call
* to getBound(). Should be called in the internal geometry of the Drawable
* is modified.*/
@ -160,10 +166,37 @@ class OSG_EXPORT Drawable : public Object
*/
inline const BoundingBox& getBound() const
{
if( !_bbox_computed)
computeBound();
return _bbox;
if(!_boundingBoxComputed)
{
_boundingBox = _initialBound;
if (_computeBoundCallback.valid())
_boundingBox.expandBy(_computeBoundCallback->computeBound(*this));
else
_boundingBox.expandBy(computeBound());
_boundingBoxComputed = true;
}
return _boundingBox;
}
/** Compute the bounding box around Drawables's geometry.*/
virtual BoundingBox computeBound() const;
/** Callback to allow users to override the default computation of bounding volume.*/
struct ComputeBoundCallback : public osg::Referenced
{
virtual BoundingBox computeBound(const osg::Drawable&) const = 0;
};
/** Set the compute bound callback to override the default computeBound.*/
void setComputeBoundCallback(ComputeBoundCallback* callback) { _computeBoundCallback = callback; }
/** Get the compute bound callback.*/
ComputeBoundCallback* getComputeBoundCallback() { return _computeBoundCallback.get(); }
/** Get the const compute bound callback.*/
const ComputeBoundCallback* getComputeBoundCallback() const { return _computeBoundCallback.get(); }
/** Set the Shape of the \c Drawable. The shape can be used to
@ -694,9 +727,6 @@ class OSG_EXPORT Drawable : public Object
virtual ~Drawable();
/** Compute the bounding box of the drawable. Method must be
implemented by subclasses.*/
virtual bool computeBound() const;
/** set the bounding box .*/
void setBound(const BoundingBox& bb) const;
@ -711,8 +741,10 @@ class OSG_EXPORT Drawable : public Object
ref_ptr<StateSet> _stateset;
mutable BoundingBox _bbox;
mutable bool _bbox_computed;
BoundingBox _initialBound;
ref_ptr<ComputeBoundCallback> _computeBoundCallback;
mutable BoundingBox _boundingBox;
mutable bool _boundingBoxComputed;
ref_ptr<Shape> _shape;

6
include/osg/Geode
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@ -128,20 +128,22 @@ class OSG_EXPORT Geode : public Node
* bounding boxes of the geode's drawables.*/
inline const BoundingBox& getBoundingBox() const
{
if(!_bsphere_computed) computeBound();
if(!_boundingSphereComputed) getBound();
return _bbox;
}
virtual BoundingSphere computeBound() const;
/** If State is non-zero, this function releases any associated OpenGL objects for
* the specified graphics context. Otherwise, releases OpenGL objexts
* for all graphics contexts. */
virtual void releaseGLObjects(osg::State* = 0) const;
protected:
virtual ~Geode();
virtual bool computeBound() const;
mutable osg::BoundingBox _bbox;
DrawableList _drawables;

2
include/osg/Group
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@ -130,7 +130,7 @@ class OSG_EXPORT Group : public Node
virtual ~Group();
virtual bool computeBound() const;
virtual BoundingSphere computeBound() const;
virtual void childRemoved(unsigned int /*pos*/, unsigned int /*numChildrenToRemove*/) {}
virtual void childInserted(unsigned int /*pos*/) {}

4
include/osg/LOD
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@ -119,11 +119,11 @@ class OSG_EXPORT LOD : public Group
/** return the list of MinMax ranges for each child.*/
inline const RangeList& getRangeList() const { return _rangeList; }
virtual BoundingSphere computeBound() const;
protected :
virtual ~LOD() {}
virtual bool computeBound() const;
virtual void childRemoved(unsigned int pos, unsigned int numChildrenToRemove);
virtual void childInserted(unsigned int pos);

4
include/osg/LightSource
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@ -72,12 +72,12 @@ class OSG_EXPORT LightSource : public Group
/** Set up the local StateSet. */
void setLocalStateSetModes(StateAttribute::GLModeValue value = StateAttribute::ON);
virtual BoundingSphere computeBound() const;
protected:
virtual ~LightSource();
virtual bool computeBound() const;
StateAttribute::GLModeValue _value;
ref_ptr<Light> _light;

61
include/osg/Node
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@ -231,22 +231,57 @@ class OSG_EXPORT Node : public Object
/** Return the node's StateSet. returns NULL if a stateset is not attached.*/
inline osg::StateSet* getStateSet() { return _stateset.get(); }
/** return the node's const StateSet. Returns NULL if a stateset is not attached.*/
/** Return the node's const StateSet. Returns NULL if a stateset is not attached.*/
inline const osg::StateSet* getStateSet() const { return _stateset.get(); }
/** get the bounding sphere of node.
Using lazy evaluation computes the bounding sphere if it is 'dirty'.*/
inline const BoundingSphere& getBound() const
{
if(!_bsphere_computed) computeBound();
return _bsphere;
}
/** Set the intial bounding volume to use when computing the overall bounding volume.*/
void setInitialBound(const osg::BoundingSphere& bsphere) { _initialBound = bsphere; dirtyBound(); }
/** Set the intial bounding volume to use when computing the overall bounding volume.*/
const BoundingSphere& getInitialBound() const { return _initialBound; }
/** Mark this node's bounding sphere dirty.
Forcing it to be computed on the next call to getBound().*/
void dirtyBound();
/** Get the bounding sphere of node.
Using lazy evaluation computes the bounding sphere if it is 'dirty'.*/
inline const BoundingSphere& getBound() const
{
if(!_boundingSphereComputed)
{
_boundingSphere = _initialBound;
if (_computeBoundCallback.valid())
_boundingSphere.expandBy(_computeBoundCallback->computeBound(*this));
else
_boundingSphere.expandBy(computeBound());
_boundingSphereComputed = true;
}
return _boundingSphere;
}
/** Compute the bounding sphere around Node's geometry or children.
This method is automatically called by getBound() when the bounding
sphere has been marked dirty via dirtyBound().*/
virtual BoundingSphere computeBound() const;
/** Callback to allow users to override the default computation of bounding volume.*/
struct ComputeBoundCallback : public osg::Referenced
{
virtual BoundingSphere computeBound(const osg::Node&) const = 0;
};
/** Set the compute bound callback to override the default computeBound.*/
void setComputeBoundCallback(ComputeBoundCallback* callback) { _computeBoundCallback = callback; }
/** Get the compute bound callback.*/
ComputeBoundCallback* getComputeBoundCallback() { return _computeBoundCallback.get(); }
/** Get the const compute bound callback.*/
const ComputeBoundCallback* getComputeBoundCallback() const { return _computeBoundCallback.get(); }
/** If State is non-zero, this function releases any associated OpenGL objects for
* the specified graphics context. Otherwise, releases OpenGL objexts
@ -266,13 +301,11 @@ class OSG_EXPORT Node : public Object
virtual ~Node();
/** Compute the bounding sphere around Node's geometry or children.
This method is automatically called by getBound() when the bounding
sphere has been marked dirty via dirtyBound().*/
virtual bool computeBound() const;
mutable BoundingSphere _bsphere;
mutable bool _bsphere_computed;
BoundingSphere _initialBound;
ref_ptr<ComputeBoundCallback> _computeBoundCallback;
mutable BoundingSphere _boundingSphere;
mutable bool _boundingSphereComputed;
std::string _name;

5
include/osg/OccluderNode
View File

@ -45,14 +45,13 @@ class OSG_EXPORT OccluderNode : public Group
/** Get the const ConvexPlanarOccluder* attached to a OccluderNode.*/
const ConvexPlanarOccluder* getOccluder() const { return _occluder.get(); }
/** Overrides Group's computeBound.*/
virtual BoundingSphere computeBound() const;
protected :
virtual ~OccluderNode() {}
/** Overrides Group's computeBound.*/
virtual bool computeBound() const;
ref_ptr<ConvexPlanarOccluder> _occluder;
};

4
include/osg/ProxyNode
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@ -76,12 +76,12 @@ class OSG_EXPORT ProxyNode : public Group
/** Get the object-space radius of the volume enclosed by the ProxyNode.*/
inline float getRadius() const { return _radius; }
virtual BoundingSphere computeBound() const;
protected :
virtual ~ProxyNode() {}
virtual bool computeBound() const;
void expandFileNameListTo(unsigned int pos);
FileNameList _filenameList;

4
include/osg/ShapeDrawable
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@ -177,14 +177,14 @@ class OSG_EXPORT ShapeDrawable : public Drawable
/** Accept a PrimitiveFunctor and call its methods to tell it about the internal primitives that this Drawable has.*/
virtual void accept(PrimitiveFunctor& pf) const;
virtual BoundingBox computeBound() const;
protected:
ShapeDrawable& operator = (const ShapeDrawable&) { return *this;}
virtual ~ShapeDrawable();
virtual bool computeBound() const;
Vec4 _color;
ref_ptr<TessellationHints> _tessellationHints;

4
include/osg/Switch
View File

@ -77,12 +77,12 @@ class OSG_EXPORT Switch : public Group
const ValueList& getValueList() const { return _values; }
virtual BoundingSphere computeBound() const;
protected :
virtual ~Switch() {}
virtual bool computeBound() const;
// This is effectively a bit mask.
bool _newChildDefaultValue;
ValueList _values;

11
include/osg/Transform
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@ -135,16 +135,17 @@ class OSG_EXPORT Transform : public Group
}
}
protected :
virtual ~Transform();
/** Overrides Group's computeBound.
* There is no need to override in subclasses from osg::Transform
* since this computeBound() uses the underlying matrix (calling
* computeMatrix if required).
*/
virtual bool computeBound() const;
virtual BoundingSphere computeBound() const;
protected :
virtual ~Transform();
ReferenceFrame _referenceFrame;

11
include/osgParticle/ParticleProcessor
View File

@ -131,12 +131,12 @@ namespace osgParticle
/// Transform a vector from world to local coordinates, discarding translation (valid only during cull traversal).
inline osg::Vec3 rotateWorldToLocal(const osg::Vec3& P);
virtual osg::BoundingSphere computeBound() const;
protected:
virtual ~ParticleProcessor() {}
ParticleProcessor& operator=(const ParticleProcessor&) { return *this; }
inline bool computeBound() const;
virtual void process(double dt) = 0;
private:
@ -249,13 +249,6 @@ namespace osgParticle
return _resetTime;
}
inline bool ParticleProcessor::computeBound() const
{
_bsphere.init();
_bsphere_computed = true;
return true;
}
inline const osg::Matrix& ParticleProcessor::getLocalToWorldMatrix()
{
if (_need_ltw_matrix) {

15
include/osgParticle/ParticleSystem
View File

@ -159,13 +159,14 @@ namespace osgParticle
virtual void drawImplementation(osg::State& state) const;
virtual osg::BoundingBox computeBound() const;
protected:
virtual ~ParticleSystem();
ParticleSystem& operator=(const ParticleSystem&) { return *this; }
inline virtual bool computeBound() const;
inline void update_bounds(const osg::Vec3& p, float r);
void single_pass_render(osg::State& state, const osg::Matrix& modelview) const;
@ -298,18 +299,6 @@ namespace osgParticle
return _last_frame;
}
inline bool ParticleSystem::computeBound() const
{
if (!_bounds_computed) {
_bbox = _def_bbox;
} else {
_bbox._min = _bmin;
_bbox._max = _bmax;
}
_bbox_computed = true;
return true;
}
inline void ParticleSystem::update_bounds(const osg::Vec3& p, float r)
{
if (_reset_bounds_flag) {

10
include/osgParticle/ParticleSystemUpdater
View File

@ -75,11 +75,12 @@ namespace osgParticle
virtual void traverse(osg::NodeVisitor& nv);
virtual osg::BoundingSphere computeBound() const;
protected:
virtual ~ParticleSystemUpdater() {}
ParticleSystemUpdater &operator=(const ParticleSystemUpdater &) { return *this; }
inline virtual bool computeBound() const;
private:
typedef std::vector<osg::ref_ptr<ParticleSystem> > ParticleSystem_Vector;
@ -90,13 +91,6 @@ namespace osgParticle
// INLINE FUNCTIONS
inline bool ParticleSystemUpdater::computeBound() const
{
_bsphere.init();
_bsphere_computed = true;
return true;
}
inline bool ParticleSystemUpdater::addParticleSystem(ParticleSystem* ps)
{
_psv.push_back(ps);

4
include/osgSim/Impostor
View File

@ -100,12 +100,12 @@ class OSGSIM_EXPORT Impostor : public osg::LOD
/** Get a const list of ImpostorSprites attached to this const Impostor. */
inline const ImpostorSpriteList& getImpostorSpriteList(unsigned int contexID) const { return _impostorSpriteListBuffer[contexID]; }
virtual osg::BoundingSphere computeBound() const;
protected :
virtual ~Impostor() {}
virtual bool computeBound() const;
mutable osg::buffered_object<ImpostorSpriteList> _impostorSpriteListBuffer;

4
include/osgSim/ImpostorSprite
View File

@ -148,6 +148,8 @@ class OSGSIM_EXPORT ImpostorSprite : public osg::Drawable
// for debugging purposes.
osg::Vec4 _color;
virtual osg::BoundingBox computeBound() const;
protected:
ImpostorSprite(const ImpostorSprite&):Drawable() {}
@ -155,8 +157,6 @@ class OSGSIM_EXPORT ImpostorSprite : public osg::Drawable
virtual ~ImpostorSprite();
virtual bool computeBound() const;
Impostor* _parent;
friend class osgSim::ImpostorSpriteManager;

4
include/osgSim/LightPointNode
View File

@ -82,6 +82,8 @@ class OSGSIM_EXPORT LightPointNode : public osg::Node
osgSim::LightPointSystem* getLightPointSystem() { return _lightSystem.get(); }
virtual osg::BoundingSphere computeBound() const;
protected:
~LightPointNode() {}
@ -90,8 +92,6 @@ class OSGSIM_EXPORT LightPointNode : public osg::Node
// view frustum check.
mutable osg::BoundingBox _bbox;
virtual bool computeBound() const;
LightPointList _lightPointList;
float _minPixelSize;

4
include/osgText/Text
View File

@ -284,12 +284,12 @@ public:
return _textureGlyphQuadMap;
}
virtual osg::BoundingBox computeBound() const;
protected:
virtual ~Text();
virtual bool computeBound() const;
Font* getActiveFont();
const Font* getActiveFont() const;

23
src/osg/Billboard.cpp
View File

@ -123,7 +123,7 @@ bool Billboard::removeDrawable( Drawable *gset )
// note ref_ptr<> automatically handles decrementing gset's reference count.
_drawables.erase(itr);
_positionList.erase(pitr);
_bsphere_computed = false;
dirtyBound();
return true;
}
}
@ -265,41 +265,40 @@ bool Billboard::computeMatrix(Matrix& modelview, const Vec3& eye_local, const Ve
}
bool Billboard::computeBound() const
BoundingSphere Billboard::computeBound() const
{
int i;
int ngsets = _drawables.size();
if( ngsets == 0 ) return false;
if( ngsets == 0 ) return BoundingSphere();
_bsphere._center.set(0.0f,0.0f,0.0f);
BoundingSphere bsphere;
bsphere._center.set(0.0f,0.0f,0.0f);
for( i = 0; i < ngsets; i++ )
{
const Drawable *gset = _drawables[i].get();
const BoundingBox& bbox = gset->getBound();
_bsphere._center += bbox.center();
_bsphere._center += _positionList[i];
bsphere._center += bbox.center();
bsphere._center += _positionList[i];
}
_bsphere._center /= (float)(ngsets);
bsphere._center /= (float)(ngsets);
float maxd = 0.0;
for( i = 0; i < ngsets; ++i )
{
const Drawable *gset = _drawables[i].get();
const BoundingBox& bbox = gset->getBound();
Vec3 local_center = _bsphere._center-_positionList[i];
Vec3 local_center = bsphere._center-_positionList[i];
for(unsigned int c=0;c<8;++c)
{
float d = (bbox.corner(c)-local_center).length2();
if( d > maxd ) maxd = d;
}
}
_bsphere._radius = sqrtf(maxd);
bsphere._radius = sqrtf(maxd);
_bsphere_computed=true;
return true;
return bsphere;
}

2
src/osg/ClipNode.cpp
View File

@ -127,7 +127,7 @@ void ClipNode::setLocalStateSetModes(const StateAttribute::GLModeValue value)
setStateSetModes(*_stateset,value);
}
bool ClipNode::computeBound() const
BoundingSphere ClipNode::computeBound() const
{
return Group::computeBound();
}

11
src/osg/DrawPixels.cpp
View File

@ -69,10 +69,10 @@ void DrawPixels::getSubImageDimensions(unsigned int& offsetX,unsigned int& offse
}
bool DrawPixels::computeBound() const
BoundingBox DrawPixels::computeBound() const
{
// really needs to be dependant of view poistion and projection... will implement simple version right now.
_bbox.init();
BoundingBox bbox;
float diagonal = 0.0f;
if (_useSubImage)
{
@ -83,10 +83,9 @@ bool DrawPixels::computeBound() const
diagonal = sqrtf(_image->s()*_image->s()+_image->t()*_image->t());
}
_bbox.expandBy(_position-osg::Vec3(diagonal,diagonal,diagonal));
_bbox.expandBy(_position+osg::Vec3(diagonal,diagonal,diagonal));
_bbox_computed = true;
return true;
bbox.expandBy(_position-osg::Vec3(diagonal,diagonal,diagonal));
bbox.expandBy(_position+osg::Vec3(diagonal,diagonal,diagonal));
return bbox;
}
void DrawPixels::drawImplementation(State&) const

22
src/osg/Drawable.cpp
View File

@ -259,7 +259,7 @@ void Drawable::flushDeletedVertexBufferObjects(unsigned int contextID,double /*c
Drawable::Drawable()
{
_bbox_computed = false;
_boundingBoxComputed = false;
// Note, if your are defining a subclass from drawable which is
// dynamically updated then you should set both the following to
@ -280,8 +280,9 @@ Drawable::Drawable(const Drawable& drawable,const CopyOp& copyop):
Object(drawable,copyop),
_parents(), // leave empty as parentList is managed by Geode
_stateset(copyop(drawable._stateset.get())),
_bbox(drawable._bbox),
_bbox_computed(drawable._bbox_computed),
_initialBound(drawable._initialBound),
_boundingBox(drawable._boundingBox),
_boundingBoxComputed(drawable._boundingBoxComputed),
_shape(copyop(drawable._shape.get())),
_supportsDisplayList(drawable._supportsDisplayList),
_useDisplayList(drawable._useDisplayList),
@ -444,9 +445,9 @@ osg::StateSet* Drawable::getOrCreateStateSet()
void Drawable::dirtyBound()
{
if (_bbox_computed)
if (_boundingBoxComputed)
{
_bbox_computed = false;
_boundingBoxComputed = false;
// dirty parent bounding sphere's to ensure that all are valid.
for(ParentList::iterator itr=_parents.begin();
@ -724,23 +725,20 @@ struct ComputeBound : public PrimitiveFunctor
BoundingBox _bb;
};
bool Drawable::computeBound() const
BoundingBox Drawable::computeBound() const
{
ComputeBound cb;
Drawable* non_const_this = const_cast<Drawable*>(this);
non_const_this->accept(cb);
_bbox = cb._bb;
_bbox_computed = true;
return true;
return cb._bb;
}
void Drawable::setBound(const BoundingBox& bb) const
{
_bbox = bb;
_bbox_computed = true;
_boundingBox = bb;
_boundingBoxComputed = true;
}

14
src/osg/Geode.cpp
View File

@ -178,9 +178,9 @@ bool Geode::setDrawable( unsigned int i, Drawable* newDrawable )
}
bool Geode::computeBound() const
BoundingSphere Geode::computeBound() const
{
_bsphere.init();
BoundingSphere bsphere;
_bbox.init();
@ -194,15 +194,9 @@ bool Geode::computeBound() const
if (_bbox.valid())
{
_bsphere.expandBy(_bbox);
_bsphere_computed=true;
return true;
}
else
{
_bsphere_computed=true;
return false;
bsphere.expandBy(_bbox);
}
return bsphere;
}
void Geode::compileDrawables(State& state)

21
src/osg/Group.cpp
View File

@ -337,15 +337,12 @@ bool Group::setChild( unsigned int i, Node* newNode )
}
bool Group::computeBound() const
BoundingSphere Group::computeBound() const
{
_bsphere.init();
BoundingSphere bsphere;
if (_children.empty())
{
_bsphere_computed = true;
return false;
return bsphere;
}
// note, special handling of the case when a child is an Transform,
@ -368,12 +365,11 @@ bool Group::computeBound() const
if (!bb.valid())
{
_bsphere_computed = true;
return false;
return bsphere;
}
_bsphere._center = bb.center();
_bsphere._radius = 0.0f;
bsphere._center = bb.center();
bsphere._radius = 0.0f;
for(itr=_children.begin();
itr!=_children.end();
++itr)
@ -381,12 +377,11 @@ bool Group::computeBound() const
const osg::Transform* transform = (*itr)->asTransform();
if (!transform || transform->getReferenceFrame()==osg::Transform::RELATIVE_RF)
{
_bsphere.expandRadiusBy((*itr)->getBound());
bsphere.expandRadiusBy((*itr)->getBound());
}
}
_bsphere_computed = true;
return true;
return bsphere;
}
void Group::releaseGLObjects(osg::State* state) const

8
src/osg/LOD.cpp
View File

@ -84,15 +84,11 @@ void LOD::traverse(NodeVisitor& nv)
}
}
bool LOD::computeBound() const
BoundingSphere LOD::computeBound() const
{
if (_centerMode==USER_DEFINED_CENTER && _radius>=0.0f)
{
_bsphere._center = _userDefinedCenter;
_bsphere._radius = _radius;
_bsphere_computed = true;
return true;
return BoundingSphere(_userDefinedCenter,_radius);
}
else
{

10
src/osg/LightSource.cpp
View File

@ -58,9 +58,9 @@ void LightSource::setLocalStateSetModes(StateAttribute::GLModeValue value)
setStateSetModes(*_stateset,value);
}
bool LightSource::computeBound() const
BoundingSphere LightSource::computeBound() const
{
Group::computeBound();
BoundingSphere bsphere(Group::computeBound());
if (_light.valid() && _referenceFrame==RELATIVE_RF)
{
@ -68,11 +68,9 @@ bool LightSource::computeBound() const
if (pos[3]!=0.0f)
{
float div = 1.0f/pos[3];
_bsphere.expandBy(Vec3(pos[0]*div,pos[1]*div,pos[2]*div));
bsphere.expandBy(Vec3(pos[0]*div,pos[1]*div,pos[2]*div));
}
}
_bsphere_computed = true;
return true;
return bsphere;
}

16
src/osg/Node.cpp
View File

@ -23,7 +23,7 @@ using namespace osg;
Node::Node()
{
_bsphere_computed = false;
_boundingSphereComputed = false;
_nodeMask = 0xffffffff;
_numChildrenRequiringUpdateTraversal = 0;
@ -38,8 +38,9 @@ Node::Node()
Node::Node(const Node& node,const CopyOp& copyop):
Object(node,copyop),
_bsphere(node._bsphere),
_bsphere_computed(node._bsphere_computed),
_initialBound(node._initialBound),
_boundingSphere(node._boundingSphere),
_boundingSphereComputed(node._boundingSphereComputed),
_name(node._name),
_parents(), // leave empty as parentList is managed by Group.
_updateCallback(node._updateCallback),
@ -404,18 +405,17 @@ bool Node::containsOccluderNodes() const
return _numChildrenWithOccluderNodes>0 || dynamic_cast<const OccluderNode*>(this);
}
bool Node::computeBound() const
BoundingSphere Node::computeBound() const
{
_bsphere.init();
return false;
return BoundingSphere();
}
void Node::dirtyBound()
{
if (_bsphere_computed)
if (_boundingSphereComputed)
{
_bsphere_computed = false;
_boundingSphereComputed = false;
// dirty parent bounding sphere's to ensure that all are valid.
for(ParentList::iterator itr=_parents.begin();

10
src/osg/OccluderNode.cpp
View File

@ -24,9 +24,9 @@ OccluderNode::OccluderNode(const OccluderNode& node,const CopyOp& copyop):
{
}
bool OccluderNode::computeBound() const
BoundingSphere OccluderNode::computeBound() const
{
bool result = Group::computeBound();
BoundingSphere bsphere(Group::computeBound());
if (getOccluder())
{
@ -40,10 +40,8 @@ bool OccluderNode::computeBound() const
}
if (bb.valid())
{
_bsphere.expandBy(bb);
_bsphere_computed=true;
result = true;
bsphere.expandBy(bb);
}
}
return result;
return bsphere;
}

8
src/osg/ProxyNode.cpp
View File

@ -103,15 +103,11 @@ bool ProxyNode::removeChild( Node *child )
return Group::removeChild(child);
}
bool ProxyNode::computeBound() const
BoundingSphere ProxyNode::computeBound() const
{
if (_centerMode==USER_DEFINED_CENTER && _radius>=0.0f)
{
_bsphere._center = _userDefinedCenter;
_bsphere._radius = _radius;
_bsphere_computed = true;
return true;
return BoundingSphere(_userDefinedCenter,_radius);
}
else
{

14
src/osg/ShapeDrawable.cpp
View File

@ -1787,20 +1787,14 @@ void ShapeDrawable::accept(PrimitiveFunctor& pf) const
}
bool ShapeDrawable::computeBound() const
BoundingBox ShapeDrawable::computeBound() const
{
_bbox.init();
BoundingBox bbox;
if (_shape.valid())
{
ComputeBoundShapeVisitor cbsv(_bbox);
ComputeBoundShapeVisitor cbsv(bbox);
_shape->accept(cbsv);
_bbox_computed = true;
return true;
}
return false;
return bbox;
}

89
src/osg/Switch.cpp
View File

@ -175,13 +175,12 @@ bool Switch::setSingleChildOn(unsigned int pos)
return true;
}
bool Switch::computeBound() const
BoundingSphere Switch::computeBound() const
{
_bsphere.init();
BoundingSphere bsphere;
if (_children.empty())
{
_bsphere_computed = true;
return false;
return bsphere;
}
// note, special handling of the case when a child is an Transform,
@ -205,12 +204,11 @@ bool Switch::computeBound() const
if (!bb.valid())
{
_bsphere_computed = true;
return false;
return bsphere;
}
_bsphere._center = bb.center();
_bsphere._radius = 0.0f;
bsphere._center = bb.center();
bsphere._radius = 0.0f;
for(itr=_children.begin();
itr!=_children.end();
++itr)
@ -219,80 +217,9 @@ bool Switch::computeBound() const
if (!transform || transform->getReferenceFrame()==osg::Transform::RELATIVE_RF)
{
if( getChildValue((*itr).get()) == true )
_bsphere.expandRadiusBy((*itr)->getBound());
bsphere.expandRadiusBy((*itr)->getBound());
}
}
_bsphere_computed = true;
return true;
return bsphere;
}
#ifdef USE_DEPRECATED_API
void Switch::setValue(int value)
{
switch(value)
{
case(MULTIPLE_CHILDREN_ON):
// do nothing...
break;
case(ALL_CHILDREN_OFF):
{
_newChildDefaultValue = false;
for(ValueList::iterator itr=_values.begin();
itr!=_values.end();
++itr)
{
*itr = false;
}
break;
}
case(ALL_CHILDREN_ON):
{
_newChildDefaultValue = true;
for(ValueList::iterator itr=_values.begin();
itr!=_values.end();
++itr)
{
*itr = true;
}
break;
}
default:
{
for(ValueList::iterator itr=_values.begin();
itr!=_values.end();
++itr)
{
*itr = false;
}
setValue(value,true);
break;
}
}
}
int Switch::getValue() const
{
if (_values.empty()) return ALL_CHILDREN_OFF;
unsigned int noChildrenSwitchedOn=0;
int firstChildSelected=ALL_CHILDREN_OFF;
for(unsigned int i=0; i<_values.size();++i)
{
if (_values[i])
{
++noChildrenSwitchedOn;
if (firstChildSelected==ALL_CHILDREN_OFF) firstChildSelected=i;
}
}
if (noChildrenSwitchedOn>1)
{
if (noChildrenSwitchedOn==_values.size()) return ALL_CHILDREN_ON;
else return MULTIPLE_CHILDREN_ON;
}
return firstChildSelected;
}
#endif

34
src/osg/Transform.cpp
View File

@ -121,9 +121,10 @@ void Transform::setReferenceFrame(ReferenceFrame rf)
setCullingActive(_referenceFrame==RELATIVE_RF);
}
bool Transform::computeBound() const
BoundingSphere Transform::computeBound() const
{
if (!Group::computeBound()) return false;
BoundingSphere bsphere = Group::computeBound();
if (!bsphere.valid()) return bsphere;
// note, NULL pointer for NodeVisitor, so compute's need
// to handle this case gracefully, normally this should not be a problem.
@ -131,33 +132,34 @@ bool Transform::computeBound() const
computeLocalToWorldMatrix(l2w,NULL);
Vec3 xdash = _bsphere._center;
xdash.x() += _bsphere._radius;
Vec3 xdash = bsphere._center;
xdash.x() += bsphere._radius;
xdash = xdash*l2w;
Vec3 ydash = _bsphere._center;
ydash.y() += _bsphere._radius;
Vec3 ydash = bsphere._center;
ydash.y() += bsphere._radius;
ydash = ydash*l2w;
Vec3 zdash = _bsphere._center;
zdash.z() += _bsphere._radius;
Vec3 zdash = bsphere._center;
zdash.z() += bsphere._radius;
zdash = zdash*l2w;
_bsphere._center = _bsphere._center*l2w;
xdash -= _bsphere._center;
bsphere._center = bsphere._center*l2w;
xdash -= bsphere._center;
float len_xdash = xdash.length();
ydash -= _bsphere._center;
ydash -= bsphere._center;
float len_ydash = ydash.length();
zdash -= _bsphere._center;
zdash -= bsphere._center;
float len_zdash = zdash.length();
_bsphere._radius = len_xdash;
if (_bsphere._radius<len_ydash) _bsphere._radius = len_ydash;
if (_bsphere._radius<len_zdash) _bsphere._radius = len_zdash;
bsphere._radius = len_xdash;
if (bsphere._radius<len_ydash) bsphere._radius = len_ydash;
if (bsphere._radius<len_zdash) bsphere._radius = len_zdash;
return true;
return bsphere;
}

6
src/osgParticle/ParticleProcessor.cpp
View File

@ -121,3 +121,9 @@ void osgParticle::ParticleProcessor::traverse(osg::NodeVisitor& nv)
// call the inherited method
Node::traverse(nv);
}
osg::BoundingSphere osgParticle::ParticleProcessor::computeBound() const
{
return osg::BoundingSphere();
}

12
src/osgParticle/ParticleSystem.cpp
View File

@ -197,3 +197,15 @@ void osgParticle::ParticleSystem::single_pass_render(osg::State& /*state*/, con
i0->endRender();
}
osg::BoundingBox osgParticle::ParticleSystem::computeBound() const
{
if (!_bounds_computed)
{
return _def_bbox;
} else
{
return osg::BoundingBox(_bmin,_bmax);
}
}

6
src/osgParticle/ParticleSystemUpdater.cpp
View File

@ -48,3 +48,9 @@ void osgParticle::ParticleSystemUpdater::traverse(osg::NodeVisitor& nv)
}
Node::traverse(nv);
}
osg::BoundingSphere osgParticle::ParticleSystemUpdater::computeBound() const
{
return osg::BoundingSphere();
}

10
src/osgPlugins/logo/ReaderWriterLOGO.cpp
View File

@ -165,15 +165,15 @@ class Logos: public osg::Drawable
return (n != 0);
}
virtual osg::BoundingBox computeBound() const
{
return osg::BoundingBox( -1, -1, -1, 1, 1, 1);
}
protected:
Logos& operator = (const Logos&) { return *this;}
virtual ~Logos() {}
virtual bool computeBound() const
{
_bbox.set( -1, -1, -1, 1, 1, 1);
return true;
}
private :
std::vector <osg::Image *> logos[last_position];
osg::Viewport *viewport;

7
src/osgPlugins/txp/TXPNode.cpp
View File

@ -101,14 +101,11 @@ void TXPNode::traverse(osg::NodeVisitor& nv)
Group::traverse(nv);
}
bool TXPNode::computeBound() const
osg::BoundingSphere TXPNode::computeBound() const
{
if (getNumChildren() == 0)
{
_bsphere.init();
_bsphere.expandBy(_extents);
_bsphere_computed = true;
return true;
return osg::BoundingSphere( _extents );
}
return Group::computeBound();
}

3
src/osgPlugins/txp/TXPNode.h
View File

@ -69,11 +69,12 @@ public:
void setArchive(TXPArchive* archive) { _archive = archive; }
virtual osg::BoundingSphere computeBound() const;
protected:
virtual ~TXPNode();
virtual bool computeBound() const;
void updateEye(osg::NodeVisitor& nv);
void updateSceneGraph();

2
src/osgSim/Impostor.cpp
View File

@ -74,7 +74,7 @@ void Impostor::addImpostorSprite(unsigned int contextID, ImpostorSprite* is)
}
}
bool Impostor::computeBound() const
osg::BoundingSphere Impostor::computeBound() const
{
return LOD::computeBound();
}

18
src/osgSim/ImpostorSprite.cpp
View File

@ -100,22 +100,20 @@ void ImpostorSprite::drawImplementation(osg::State&) const
}
bool ImpostorSprite::computeBound() const
osg::BoundingBox ImpostorSprite::computeBound() const
{
_bbox.init();
_bbox.expandBy(_coords[0]);
_bbox.expandBy(_coords[1]);
_bbox.expandBy(_coords[2]);
_bbox.expandBy(_coords[3]);
osg::BoundingBox bbox;
bbox.expandBy(_coords[0]);
bbox.expandBy(_coords[1]);
bbox.expandBy(_coords[2]);
bbox.expandBy(_coords[3]);
_bbox_computed=true;
if (!_bbox.valid())
if (!bbox.valid())
{
osg::notify(osg::WARN) << "******* ImpostorSprite::computeBound() problem"<<std::endl;
}
return true;
return bbox;
}
void ImpostorSprite::setTexture(osg::Texture2D* tex,int s,int t)

12
src/osgSim/LightPointDrawable.cpp
View File

@ -169,9 +169,9 @@ void LightPointDrawable::drawImplementation(osg::State& state) const
}
bool LightPointDrawable::computeBound() const
osg::BoundingBox LightPointDrawable::computeBound() const
{
_bbox.init();
osg::BoundingBox bbox;
SizedLightPointList::const_iterator sitr;
for(sitr=_sizedOpaqueLightPointList.begin();
@ -183,7 +183,7 @@ bool LightPointDrawable::computeBound() const
litr!=lpl.end();
++litr)
{
_bbox.expandBy(litr->second);
bbox.expandBy(litr->second);
}
}
for(sitr=_sizedAdditiveLightPointList.begin();
@ -195,7 +195,7 @@ bool LightPointDrawable::computeBound() const
litr!=lpl.end();
++litr)
{
_bbox.expandBy(litr->second);
bbox.expandBy(litr->second);
}
}
for(sitr=_sizedBlendedLightPointList.begin();
@ -207,9 +207,9 @@ bool LightPointDrawable::computeBound() const
litr!=lpl.end();
++litr)
{
_bbox.expandBy(litr->second);
bbox.expandBy(litr->second);
}
}
return true;
return bbox;
}

4
src/osgSim/LightPointDrawable.h
View File

@ -93,9 +93,9 @@ class OSGSIM_EXPORT LightPointDrawable : public osg::Drawable
double getReferenceTime() const { return _referenceTime; }
double getReferenceTimeInterval() const { return _referenceTimeInterval; }
protected:
virtual osg::BoundingBox computeBound() const;
virtual bool computeBound() const;
protected:
virtual ~LightPointDrawable() {}

20
src/osgSim/LightPointNode.cpp
View File

@ -80,15 +80,15 @@ void LightPointNode::removeLightPoint(unsigned int pos)
dirtyBound();
}
bool LightPointNode::computeBound() const
osg::BoundingSphere LightPointNode::computeBound() const
{
_bsphere.init();
osg::BoundingSphere bsphere;
bsphere.init();
_bbox.init();
if (_lightPointList.empty())
{
_bsphere_computed=true;
return false;
return bsphere;
}
@ -101,21 +101,19 @@ bool LightPointNode::computeBound() const
}
_bsphere.set(_bbox.center(),0.0f);
bsphere.set(_bbox.center(),0.0f);
for(itr=_lightPointList.begin();
itr!=_lightPointList.end();
++itr)
{
osg::Vec3 dv(itr->_position-_bsphere.center());
osg::Vec3 dv(itr->_position-bsphere.center());
float radius = dv.length()+itr->_radius;
if (_bsphere.radius()<radius) _bsphere.radius()=radius;
if (bsphere.radius()<radius) bsphere.radius()=radius;
}
_bsphere.radius()+=1.0f;
_bsphere_computed=true;
return true;
bsphere.radius()+=1.0f;
return bsphere;
}

38
src/osgSim/SphereSegment.cpp
View File

@ -35,9 +35,9 @@ public:
void drawImplementation(osg::State& state) const;
protected:
virtual osg::BoundingBox computeBound() const;
virtual bool computeBound() const;
protected:
private:
@ -49,10 +49,11 @@ void SphereSegment::Surface::drawImplementation(osg::State& state) const
_ss->Surface_drawImplementation(state);
}
bool SphereSegment::Surface::computeBound() const
osg:: BoundingBox SphereSegment::Surface::computeBound() const
{
_bbox_computed = _ss->Surface_computeBound(_bbox);
return _bbox_computed;
osg:: BoundingBox bbox;
_ss->Surface_computeBound(bbox);
return bbox;
}
@ -93,7 +94,7 @@ protected:
}
virtual bool computeBound() const;
virtual osg::BoundingBox computeBound() const;
private:
@ -105,10 +106,11 @@ void SphereSegment::EdgeLine::drawImplementation(osg::State& state) const
_ss->EdgeLine_drawImplementation(state);
}
bool SphereSegment::EdgeLine::computeBound() const
osg::BoundingBox SphereSegment::EdgeLine::computeBound() const
{
_bbox_computed = _ss->EdgeLine_computeBound(_bbox);
return _bbox_computed;
osg::BoundingBox bbox;
_ss->EdgeLine_computeBound(bbox);
return bbox;
}
@ -141,7 +143,7 @@ public:
protected:
virtual bool computeBound() const;
virtual osg::BoundingBox computeBound() const;
private:
SphereSegment* _ss;
@ -155,10 +157,11 @@ void SphereSegment::Side::drawImplementation(osg::State& state) const
_ss->Side_drawImplementation(state, _planeOrientation, _BoundaryAngle);
}
bool SphereSegment::Side::computeBound() const
osg::BoundingBox SphereSegment::Side::computeBound() const
{
_bbox_computed = _ss->Side_computeBound(_bbox, _planeOrientation, _BoundaryAngle);
return _bbox_computed;
osg::BoundingBox bbox;
_ss->Side_computeBound(bbox, _planeOrientation, _BoundaryAngle);
return bbox;
}
@ -199,7 +202,7 @@ protected:
//getOrCreateStateSet()->setAttributeAndModes(new osg::LineWidth(2.0),osg::StateAttribute::OFF);
}
virtual bool computeBound() const;
virtual osg::BoundingBox computeBound() const;
private:
SphereSegment* _ss;
@ -211,10 +214,11 @@ void SphereSegment::Spoke::drawImplementation(osg::State& state) const
_ss->Spoke_drawImplementation(state, _azAngle, _elevAngle);
}
bool SphereSegment::Spoke::computeBound() const
osg::BoundingBox SphereSegment::Spoke::computeBound() const
{
_bbox_computed = _ss->Spoke_computeBound(_bbox, _azAngle, _elevAngle);
return _bbox_computed;
osg::BoundingBox bbox;
_ss->Spoke_computeBound(bbox, _azAngle, _elevAngle);
return bbox;
}
SphereSegment::SphereSegment(const osg::Vec3& centre, float radius, const osg::Vec3& vec, float azRange,

15
src/osgText/Text.cpp
View File

@ -222,9 +222,9 @@ void Text::setDrawMode(unsigned int mode)
}
bool Text::computeBound() const
osg::BoundingBox Text::computeBound() const
{
_bbox.init();
osg::BoundingBox bbox;
if (_textBB.valid())
{
@ -238,16 +238,15 @@ bool Text::computeBound() const
else
{
osg::Matrix& matrix = _autoTransformCache[i]._matrix;
_bbox.expandBy(osg::Vec3(_textBB.xMin(),_textBB.yMin(),_textBB.zMin())*matrix);
_bbox.expandBy(osg::Vec3(_textBB.xMax(),_textBB.yMin(),_textBB.zMin())*matrix);
_bbox.expandBy(osg::Vec3(_textBB.xMax(),_textBB.yMax(),_textBB.zMin())*matrix);
_bbox.expandBy(osg::Vec3(_textBB.xMin(),_textBB.yMax(),_textBB.zMin())*matrix);
bbox.expandBy(osg::Vec3(_textBB.xMin(),_textBB.yMin(),_textBB.zMin())*matrix);
bbox.expandBy(osg::Vec3(_textBB.xMax(),_textBB.yMin(),_textBB.zMin())*matrix);
bbox.expandBy(osg::Vec3(_textBB.xMax(),_textBB.yMax(),_textBB.zMin())*matrix);
bbox.expandBy(osg::Vec3(_textBB.xMin(),_textBB.yMax(),_textBB.zMin())*matrix);
}
}
}
_bbox_computed = true;
return true;
return bbox;
}
Font* Text::getActiveFont()