Changed the naming and calling convention of the new Drawable::AttributeFunctor
and have updated GeoSet to use mutable values for the _numverts etc, allowing osg::GeoSet::computeNumVerts() to be a const operation. osg::GeoSet::getNumVerts is now a const once more, so avoiding compilation problems. Also chaned the new osgconv orientation code to use a Drawable::AttributeFunctor so it can work on other Drawables other than just GeoSets.
This commit is contained in:
Robert Osfield
parent
a57ab6d121
commit
1e4a0cadf5
15
TODO
15
TODO
@ -26,9 +26,7 @@ o Core OSG Library
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. mutli-threading/shared memory support.
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- Maths
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. full maths support in osg::Matrix class.
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. double matrix class.
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. osg::Plane class.
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- Nodes
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. add osg::Sequence for basic animation.
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@ -39,7 +37,6 @@ o Core OSG Library
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. utilise stl vectors for osg::GeoSets?
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. add handling of memory of osg::GeoSet's attributes.
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. add osg::Terrain node.
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. add osg::EarthSky class for rendering earth and sky backgrounds.
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. add proxy node for lazy loading of nodes, when needed.
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. implement visual proximity to assist loading of proxied data
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when the view frustum nears an unloaded proxy node, and deleting
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@ -93,16 +90,14 @@ o Under development
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- add osg::Billboard for trees etc.
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- full maths support in osg::Matrix class.
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- Netscape plug-in.
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- add osg::Channel/sgCamera class.
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- .pfb loader for Performer binary files (functioning already.)
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- .flt Open Flight format (functioning already.)
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- .3ds 3D Studio format (functioning already.)
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- autoconf/configure support to aid portabilty to other unix's.
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- CVS support for when source is made fully public.
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- Mac port.
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- tri stripping visitor.
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- .obj Alias wavefront's format.(functioning already.)
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- .lwo Light Waves's format.(functioning already.)
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- .pfb loader for Performer binary files (functioning already.)
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- .flt Open Flight format (functioning already.)
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- .3ds 3D Studio format (functioning already.)
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o Work completed
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==============
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@ -145,3 +140,7 @@ o Work completed
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- create a base class to provide interface to objects which can render,
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derive osg::GeoSet from this.
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- add support for multi-pass rendering.
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- full maths support in osg::Matrix class.
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- osg::Plane class.
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- add osg::Camera class.
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- add osg::EarthSky class for rendering earth and sky backgrounds.
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@ -141,22 +141,30 @@ class SG_EXPORT Drawable : public Object
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TEXTURE_COORDS_3 = 0x64
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};
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struct AttributeUpdateFunctor
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class AttributeFunctor
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{
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inline bool apply(AttributeBitMask abm,Vec2& vec) { return apply(abm,&vec,(&vec)+1); }
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inline bool apply(AttributeBitMask abm,Vec3& vec) { return apply(abm,&vec,(&vec)+1); }
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inline bool apply(AttributeBitMask abm,Vec4& vec) { return apply(abm,&vec,(&vec)+1); }
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public:
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AttributeFunctor(AttributeBitMask abm):_abm(abm) {}
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virtual ~AttributeFunctor() {}
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void setAttributeBitMask(AttributeBitMask abm) { _abm=abm; }
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AttributeBitMask getAttributeBitMask() const { return _abm; }
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virtual bool apply(AttributeBitMask,Vec2*,Vec2*) { return false; }
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virtual bool apply(AttributeBitMask,Vec3*,Vec3*) { return false; }
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virtual bool apply(AttributeBitMask,Vec4*,Vec4*) { return false; }
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protected:
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AttributeBitMask _abm;
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};
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/** return the attributes supported by applyAttrbuteUpdate() as an AttributeBitMask.*/
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virtual AttributeBitMask suppportsAttributeUpdate() const { return (AttributeBitMask)0; }
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/** return the attributes supported by applyAttrbuteOperation() as an AttributeBitMask.*/
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virtual AttributeBitMask suppportsAttributeOperation() const { return (AttributeBitMask)0; }
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/** return the attributes successully applied in applyAttributeUpdate.*/
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virtual AttributeBitMask applyAttributeUpdate(AttributeBitMask,AttributeUpdateFunctor&) { return (AttributeBitMask)0; }
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virtual AttributeBitMask applyAttributeOperation(AttributeFunctor&) { return 0; }
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protected:
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@ -70,7 +70,7 @@ class SG_EXPORT GeoSet : public Drawable
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struct IndexPointer
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{
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uint _size;
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mutable uint _size;
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bool _is_ushort;
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union
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{
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@ -160,11 +160,11 @@ class SG_EXPORT GeoSet : public Drawable
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inline int *getPrimLengths() { return _primLengths; }
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inline const int *getPrimLengths() const { return _primLengths; }
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void computeNumVerts();
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void computeNumVerts() const;
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/** get the number of coords required by the defined primitives. */
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// inline const int getNumCoords() const
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inline const int getNumCoords()
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inline const int getNumCoords() const
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{ if( _numcoords == 0 ) computeNumVerts(); return _numcoords; }
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/** get a pointer to Vec3 coord array. */
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inline Vec3* getCoords() { return _coords; }
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@ -292,10 +292,10 @@ class SG_EXPORT GeoSet : public Drawable
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/** return the attributes supported by applyAttrbuteUpdate() as an AttributeBitMask.*/
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virtual AttributeBitMask suppportsAttributeUpdate() const;
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virtual AttributeBitMask suppportsAttributeOperation() const;
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/** return the attributes successully applied in applyAttributeUpdate.*/
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virtual AttributeBitMask applyAttributeUpdate(AttributeBitMask abm,AttributeUpdateFunctor& auf);
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virtual AttributeBitMask applyAttributeOperation(AttributeFunctor& auf);
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protected:
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@ -312,25 +312,25 @@ class SG_EXPORT GeoSet : public Drawable
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int _needprimlen;
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unsigned int _oglprimtype;
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int *_primLengths;
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unsigned char _primlength;
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mutable unsigned char _primlength;
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unsigned char _flat_shaded_skip;
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int _numcoords;
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mutable int _numcoords;
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Vec3 *_coords;
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IndexPointer _cindex;
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BindingType _normal_binding;
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int _numnormals;
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mutable int _numnormals;
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Vec3 *_normals;
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IndexPointer _nindex;
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BindingType _color_binding;
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int _numcolors;
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mutable int _numcolors;
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Vec4 *_colors;
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IndexPointer _colindex;
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BindingType _texture_binding;
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int _numtcoords;
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mutable int _numtcoords;
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Vec2 *_tcoords;
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IndexPointer _tindex;
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@ -4,6 +4,46 @@
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using namespace osg;
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class TransformFunctor : public osg::Drawable::AttributeFunctor
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{
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public:
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osg::Matrix _m;
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TransformFunctor(const osg::Matrix& m):
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AttributeFunctor(osg::Drawable::COORDS|osg::Drawable::NORMALS),
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_m(m) {}
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virtual ~TransformFunctor() {}
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virtual bool apply(osg::Drawable::AttributeBitMask abm,osg::Vec3* begin,osg::Vec3* end)
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{
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if (abm == osg::Drawable::COORDS)
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{
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for (osg::Vec3* itr=begin;itr<end;++itr)
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{
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(*itr) = (*itr)*_m;
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}
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return true;
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}
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else if (abm == osg::Drawable::NORMALS)
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{
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for (osg::Vec3* itr=begin;itr<end;++itr)
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{
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// note post mult rather than pre mult of value.
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(*itr) = osg::Matrix::transform3x3(_m,(*itr));
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(*itr).normalize();
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}
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return true;
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}
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return false;
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}
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};
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OrientationConverter::OrientationConverter( void )
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{
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}
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@ -30,14 +70,18 @@ void OrientationConverter::ConvertVisitor::apply( Geode &geode )
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{
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int numdrawables = geode.getNumDrawables();
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TransformFunctor tf(_mat);
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// We assume all Drawables are GeoSets ?!!?
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for( int i = 0; i < numdrawables; i++ )
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{
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geode.getDrawable(i)->applyAttributeOperation(tf);
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/*
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GeoSet *gset = dynamic_cast<GeoSet *>(geode.getDrawable(i));
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if( gset == NULL )
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continue;
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int numcoords = gset->getNumCoords();
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Vec3 *vertex = gset->getCoords();
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@ -54,5 +98,6 @@ void OrientationConverter::ConvertVisitor::apply( Geode &geode )
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Vec3 vv = normals[i];
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normals[i] = vv * _mat;
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}
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*/
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}
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}
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@ -14,7 +14,7 @@ TARGET_BIN_FILES = sgv
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#note, standard library list.
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LIBS = -losgGLUT -losgUtil -losgDB -losg $(GLUTLIB) -lGLU -lGL -lm -lXmu -lX11 -lXi
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C++FLAGS += -I../../../include
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C++FLAGS += -I../../../include -g
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LDFLAGS += -L../../../lib
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include ../../../Make/makerules
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@ -2,6 +2,8 @@
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#include <mcheck.h>
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#endif
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#include <osg/Transform>
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#include <osg/Geode>
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#include <osg/Group>
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#include <osg/Notify>
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@ -18,6 +20,173 @@
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#include <osgUtil/OptimizeStateVisitor>
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class TransformFunctor : public osg::Drawable::AttributeFunctor
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{
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public:
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osg::Matrix _m;
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TransformFunctor(const osg::Matrix& m):
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AttributeFunctor(osg::Drawable::COORDS|osg::Drawable::NORMALS),
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_m(m) {}
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virtual ~TransformFunctor() {}
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virtual bool apply(osg::Drawable::AttributeBitMask abm,osg::Vec3* begin,osg::Vec3* end)
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{
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if (abm == osg::Drawable::COORDS)
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{
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for (osg::Vec3* itr=begin;itr<end;++itr)
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{
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(*itr) = (*itr)*_m;
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}
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return true;
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}
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else if (abm == osg::Drawable::NORMALS)
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{
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for (osg::Vec3* itr=begin;itr<end;++itr)
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{
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// note post mult rather than pre mult of value.
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(*itr) = osg::Matrix::transform3x3(_m,(*itr));
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(*itr).normalize();
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}
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return true;
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}
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return false;
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}
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};
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class FlattenStaticTransformsVisitor : public osg::NodeVisitor
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{
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public:
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typedef std::vector<osg::Matrix> MatrixStack;
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MatrixStack _matrixStack;
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typedef std::set<osg::Transform*> TransformList;
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TransformList _transformList;
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FlattenStaticTransformsVisitor():NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
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virtual void apply(osg::Geode& geode)
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{
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if (!_matrixStack.empty())
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{
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TransformFunctor tf(_matrixStack.back());
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for(int i=0;i<geode.getNumDrawables();++i)
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{
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geode.getDrawable(i)->applyAttributeOperation(tf);
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}
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}
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}
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virtual void apply(osg::Transform& transform)
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{
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if (_matrixStack.empty())
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{
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_matrixStack.push_back(transform.getMatrix());
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}
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else
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{
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_matrixStack.push_back(transform.getMatrix()*_matrixStack.back());
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}
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traverse(transform);
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_transformList.insert(&transform);
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// reset the matrix to identity.
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transform.getMatrix().makeIdent();
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_matrixStack.pop_back();
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}
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void removeTransforms()
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{
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for(TransformList::iterator itr=_transformList.begin();
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itr!=_transformList.end();
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++itr)
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{
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osg::ref_ptr<osg::Transform> transform = *itr;
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osg::ref_ptr<osg::Group> group = new osg::Group;
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int i;
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for(i=0;i<transform->getNumChildren();++i)
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{
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for(int j=0;j<transform->getNumParents();++j)
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{
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group->addChild(transform->getChild(i));
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}
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}
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for(i=transform->getNumParents()-1;i>=0;--i)
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{
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transform->getParent(i)->replaceChild(transform.get(),group.get());
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}
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}
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_transformList.clear();
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}
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};
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class RemoveRedundentNodesVisitor : public osg::NodeVisitor
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{
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public:
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typedef std::set<osg::Node*> NodeList;
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NodeList _redundentNodeList;
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RemoveRedundentNodesVisitor():NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
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virtual void apply(osg::Group& group)
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{
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if (typeid(group)==typeid(osg::Group))
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{
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if (group.getNumParents()>0 && group.getNumChildren()<=1)
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{
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_redundentNodeList.insert(&group);
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}
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}
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traverse(group);
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}
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void removeRedundentNodes()
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{
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for(NodeList::iterator itr=_redundentNodeList.begin();
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itr!=_redundentNodeList.end();
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++itr)
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{
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osg::ref_ptr<osg::Group> group = dynamic_cast<osg::Group*>(*itr);
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if (group.valid())
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{
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for(int j=group->getNumParents()-1;j>=0;--j)
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{
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for(int i=0;i<group->getNumChildren();++i)
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{
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group->getParent(j)->addChild(group->getChild(i));
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}
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group->getParent(j)->removeChild(group.get());
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}
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}
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}
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_redundentNodeList.clear();
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}
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};
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/*
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* Function to read several files (typically one) as specified on the command
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* line, and return them in an osg::Node
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@ -141,8 +310,15 @@ int main( int argc, char **argv )
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osv.optimize();
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#endif
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/*
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FlattenStaticTransformsVisitor fstv;
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rootnode->accept(fstv);
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fstv.removeTransforms();
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RemoveRedundentNodesVisitor rrnv;
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rootnode->accept(rrnv);
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rrnv.removeRedundentNodes();
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*/
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// initialize the viewer.
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osgGLUT::Viewer viewer;
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viewer.addViewport( rootnode );
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@ -129,7 +129,7 @@ void GeoSet::drawImmediateMode(State&)
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draw_alternate_path();
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}
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void GeoSet::computeNumVerts()
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void GeoSet::computeNumVerts() const
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{
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int i;
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int numverts=0;
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@ -294,9 +294,7 @@ const bool GeoSet::computeBound() const
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if( _numcoords == 0 )
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{
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// a dirty hack to cast away constness of this..
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GeoSet* gset = const_cast<GeoSet*>(this);
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gset->computeNumVerts();
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computeNumVerts();
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}
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if( _numcoords == 0 )
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@ -645,16 +643,17 @@ void GeoSet::setInterleavedArray( const InterleaveArrayType format, float *ia, I
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set_fast_path();
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}
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Drawable::AttributeBitMask GeoSet::suppportsAttributeUpdate() const
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Drawable::AttributeBitMask GeoSet::suppportsAttributeOperation() const
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{
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// we do support coords,normals,texcoords and colors so return true.
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return COORDS | NORMALS | COLORS | TEXTURE_COORDS;
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}
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Drawable::AttributeBitMask GeoSet::applyAttributeUpdate(AttributeBitMask amb,AttributeUpdateFunctor& auf)
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Drawable::AttributeBitMask GeoSet::applyAttributeOperation(AttributeFunctor& auf)
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{
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computeNumVerts();
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if (_numcoords == 0) computeNumVerts();
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AttributeBitMask amb = auf.getAttributeBitMask();
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AttributeBitMask ramb = 0;
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if ((amb & COORDS) && _coords && _numcoords)
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@ -671,12 +670,12 @@ Drawable::AttributeBitMask GeoSet::applyAttributeUpdate(AttributeBitMask amb,Att
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if (auf.apply(NORMALS,_normals,_normals+_numnormals)) ramb = NORMALS;
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}
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if ((amb & COLORS) && _colors)
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if ((amb & COLORS) && _colors && _numcolors)
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{
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if (auf.apply(COLORS,_colors,_colors+_numcolors)) ramb = COLORS;
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}
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if ((amb & TEXTURE_COORDS) && _tcoords)
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if ((amb & TEXTURE_COORDS) && _tcoords && _numtcoords)
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{
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if (auf.apply(TEXTURE_COORDS,_tcoords,_tcoords+_numtcoords)) ramb = TEXTURE_COORDS;
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}
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