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From Gino van den Bergen, "Added support for vrml primitive caching"

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This commit is contained in:
Robert Osfield 2008-06-18 10:51:02 +00:00
parent 7dc3ad4b5e
commit bc79df7cd8
4 changed files with 101 additions and 28 deletions
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2
src/osgPlugins/vrml/IndexedFaceSet.cpp
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@ -18,7 +18,7 @@
#include <osg/CullFace>
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97IndexedFaceSet(openvrml::vrml97_node::indexed_face_set_node *vrml_ifs)
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97IndexedFaceSet(openvrml::vrml97_node::indexed_face_set_node *vrml_ifs) const
{
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();

71
src/osgPlugins/vrml/Primitives.cpp
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@ -18,14 +18,19 @@
#include <osg/CullFace>
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Box(openvrml::vrml97_node::box_node* vrml_box)
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Box(openvrml::vrml97_node::box_node* vrml_box) const
{
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
const openvrml::vec3f& size = static_cast<const openvrml::sfvec3f&>(vrml_box->field("size")).value;
osg::Vec3 halfSize(size[0] * 0.5f, size[1] * 0.5f, size[2] * 0.5f);
BoxLibrary::const_iterator it = m_boxLibrary.find(halfSize);
if (it != m_boxLibrary.end())
{
return (*it).second.get();
}
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
osg::ref_ptr<osg::Vec3Array> osg_normals = new osg::Vec3Array();
@ -88,16 +93,23 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Box(openvrml::vrml97
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
m_boxLibrary[halfSize] = osg_geom;
return osg_geom.get();
}
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Sphere(openvrml::vrml97_node::sphere_node* vrml_sphere)
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Sphere(openvrml::vrml97_node::sphere_node* vrml_sphere) const
{
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
float radius = static_cast<const openvrml::sffloat&>(vrml_sphere->field("radius")).value;
SphereLibrary::const_iterator it = m_sphereLibrary.find(radius);
if (it != m_sphereLibrary.end())
{
return (*it).second.get();
}
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
osg::ref_ptr<osg::Vec3Array> osg_normals = new osg::Vec3Array();
@ -160,17 +172,28 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Sphere(openvrml::vrm
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
m_sphereLibrary[radius] = osg_geom;
return osg_geom.get();
}
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cone(openvrml::vrml97_node::cone_node* vrml_cone)
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cone(openvrml::vrml97_node::cone_node* vrml_cone) const
{
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
float height = static_cast<const openvrml::sffloat&>(vrml_cone->field("height")).value;
float radius = static_cast<const openvrml::sffloat&>(vrml_cone->field("bottomRadius")).value;
bool bottom = static_cast<const openvrml::sfbool&>(vrml_cone->field("bottom")).value;
bool side = static_cast<const openvrml::sfbool&>(vrml_cone->field("side")).value;
QuadricKey key(height, radius, bottom, side, false);
ConeLibrary::const_iterator it = m_coneLibrary.find(key);
if (it != m_coneLibrary.end())
{
return (*it).second.get();
}
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
osg::ref_ptr<osg::Vec3Array> osg_normals = new osg::Vec3Array();
@ -182,7 +205,7 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cone(openvrml::vrml9
float topY = height * 0.5f;
float bottomY = height * -0.5f;
if (static_cast<const openvrml::sfbool&>(vrml_cone->field("side")).value)
if (side)
{
osg::ref_ptr<osg::DrawArrays> side = new osg::DrawArrays(osg::PrimitiveSet::QUAD_STRIP);
@ -226,7 +249,7 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cone(openvrml::vrml9
osg_geom->addPrimitiveSet(side.get());
}
if (static_cast<const openvrml::sfbool&>(vrml_cone->field("bottom")).value)
if (bottom)
{
osg::ref_ptr<osg::DrawArrays> bottom = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN);
@ -263,16 +286,28 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cone(openvrml::vrml9
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
m_coneLibrary[key] = osg_geom;
return osg_geom.get();
}
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cylinder(openvrml::vrml97_node::cylinder_node* vrml_cylinder)
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cylinder(openvrml::vrml97_node::cylinder_node* vrml_cylinder) const
{
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
float height = static_cast<const openvrml::sffloat&>(vrml_cylinder->field("height")).value;
float radius = static_cast<const openvrml::sffloat&>(vrml_cylinder->field("radius")).value;
bool bottom = static_cast<const openvrml::sfbool&>(vrml_cylinder->field("bottom")).value;
bool side = static_cast<const openvrml::sfbool&>(vrml_cylinder->field("side")).value;
bool top = static_cast<const openvrml::sfbool&>(vrml_cylinder->field("top")).value;
QuadricKey key(height, radius, bottom, side, top);
CylinderLibrary::const_iterator it = m_cylinderLibrary.find(key);
if (it != m_cylinderLibrary.end())
{
return (*it).second.get();
}
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
osg::ref_ptr<osg::Vec3Array> osg_normals = new osg::Vec3Array();
@ -285,7 +320,7 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cylinder(openvrml::v
float topY = height * 0.5f;
float bottomY = height * -0.5f;
if (static_cast<const openvrml::sfbool&>(vrml_cylinder->field("side")).value)
if (side)
{
osg::ref_ptr<osg::DrawArrays> side = new osg::DrawArrays(osg::PrimitiveSet::QUAD_STRIP);
@ -326,7 +361,7 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cylinder(openvrml::v
osg_geom->addPrimitiveSet(side.get());
}
if (static_cast<const openvrml::sfbool&>(vrml_cylinder->field("bottom")).value)
if (bottom)
{
osg::ref_ptr<osg::DrawArrays> bottom = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN);
@ -355,7 +390,7 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cylinder(openvrml::v
osg_geom->addPrimitiveSet(bottom.get());
}
if (static_cast<const openvrml::sfbool&>(vrml_cylinder->field("top")).value)
if (top)
{
osg::ref_ptr<osg::DrawArrays> top = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN);
@ -391,5 +426,7 @@ osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cylinder(openvrml::v
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
m_cylinderLibrary[key] = osg_geom;
return osg_geom.get();
}

2
src/osgPlugins/vrml/ReaderWriterVRML2.cpp
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@ -110,7 +110,7 @@ osgDB::ReaderWriter::ReadResult ReaderWriterVRML2::readNode(const std::string &f
}
}
osg::ref_ptr<osg::Node> ReaderWriterVRML2::convertFromVRML(openvrml::node *obj)
osg::ref_ptr<osg::Node> ReaderWriterVRML2::convertFromVRML(openvrml::node *obj) const
{
std::string name = obj->id();
static int osgLightNum = 0; //light

48
src/osgPlugins/vrml/ReaderWriterVRML2.h
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@ -15,6 +15,7 @@
*/
#include <string>
#include <map>
#include <osg/Node>
#include <osg/Geometry>
@ -38,6 +39,31 @@ namespace openvrml
}
}
class QuadricKey
{
public:
QuadricKey(float height, float radius, unsigned bottom, unsigned side, unsigned top)
: m_height(height)
, m_radius(radius)
, m_flags(bottom | (side << 1) | (top << 2))
{}
bool operator<(const QuadricKey& rhs) const
{
return m_height < rhs.m_height ||
(m_height == rhs.m_height && (m_radius < rhs.m_radius ||
(m_radius == rhs.m_radius && m_flags < rhs.m_flags)));
}
private:
float m_height;
float m_radius;
unsigned m_flags;
};
/**
* OpenSceneGraph plugin wrapper/converter.
*/
@ -61,11 +87,21 @@ public:
virtual ReadResult readNode(const std::string&, const osgDB::ReaderWriter::Options *options = NULL) const;
private:
static osg::ref_ptr<osg::Node> convertFromVRML(openvrml::node *obj);
typedef std::map<float, osg::ref_ptr<osg::Geometry> > SphereLibrary;
typedef std::map<osg::Vec3, osg::ref_ptr<osg::Geometry> > BoxLibrary;
typedef std::map<QuadricKey, osg::ref_ptr<osg::Geometry> > ConeLibrary;
typedef std::map<QuadricKey, osg::ref_ptr<osg::Geometry> > CylinderLibrary;
static osg::ref_ptr<osg::Geometry> convertVRML97IndexedFaceSet(openvrml::vrml97_node::indexed_face_set_node *vrml_ifs);
static osg::ref_ptr<osg::Geometry> convertVRML97Box(openvrml::vrml97_node::box_node* vrml_box);
static osg::ref_ptr<osg::Geometry> convertVRML97Sphere(openvrml::vrml97_node::sphere_node* vrml_sphere);
static osg::ref_ptr<osg::Geometry> convertVRML97Cone(openvrml::vrml97_node::cone_node* vrml_cone);
static osg::ref_ptr<osg::Geometry> convertVRML97Cylinder(openvrml::vrml97_node::cylinder_node* vrml_cylinder);
osg::ref_ptr<osg::Node> convertFromVRML(openvrml::node *obj) const;
osg::ref_ptr<osg::Geometry> convertVRML97IndexedFaceSet(openvrml::vrml97_node::indexed_face_set_node *vrml_ifs) const;
osg::ref_ptr<osg::Geometry> convertVRML97Box(openvrml::vrml97_node::box_node* vrml_box) const;
osg::ref_ptr<osg::Geometry> convertVRML97Sphere(openvrml::vrml97_node::sphere_node* vrml_sphere) const;
osg::ref_ptr<osg::Geometry> convertVRML97Cone(openvrml::vrml97_node::cone_node* vrml_cone) const;
osg::ref_ptr<osg::Geometry> convertVRML97Cylinder(openvrml::vrml97_node::cylinder_node* vrml_cylinder) const;
mutable BoxLibrary m_boxLibrary;
mutable SphereLibrary m_sphereLibrary;
mutable ConeLibrary m_coneLibrary;
mutable CylinderLibrary m_cylinderLibrary;
};