FGFS-4.1/OpenSceneGraph
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Added osg::Drawable::PrimitiveFunctor and TriangleFunctor subclass for

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querrying the primitive data inside Drawables.  Moved various support
classes over from being osg::GeoSet based to osg::Geometry based.
This commit is contained in:
Robert Osfield
2002-06-25 20:27:51 +00:00
parent 336c47e5fe
commit cbeeeefdab
20 changed files with 737 additions and 651 deletions
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91
src/osg/ShadowVolumeOccluder.cpp
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@@ -3,7 +3,6 @@
#include <osg/Group>
#include <osg/Geode>
#include <osg/GeoSet>
using namespace osg;
@@ -163,59 +162,7 @@ float computePolytopeVolume(const PointList& front, const PointList& back)
return volume;
}
Drawable* createOccluderDrawable(const PointList& front, const PointList& back)
{
// create a drawable for occluder.
osg::GeoSet* geoset = osgNew osg::GeoSet;
int totalNumber = front.size()+back.size();
osg::Vec3* coords = osgNew osg::Vec3[front.size()+back.size()];
osg::Vec3* cptr = coords;
for(PointList::const_iterator fitr=front.begin();
fitr!=front.end();
++fitr)
{
*cptr = fitr->second;
++cptr;
}
for(PointList::const_iterator bitr=back.begin();
bitr!=back.end();
++bitr)
{
*cptr = bitr->second;
++cptr;
}
geoset->setCoords(coords);
osg::Vec4* color = osgNew osg::Vec4[1];
color[0].set(1.0f,1.0f,1.0f,0.5f);
geoset->setColors(color);
geoset->setColorBinding(osg::GeoSet::BIND_OVERALL);
geoset->setPrimType(osg::GeoSet::POINTS);
geoset->setNumPrims(totalNumber);
//cout << "totalNumber = "<<totalNumber<<endl;
osg::Geode* geode = osgNew osg::Geode;
geode->addDrawable(geoset);
osg::StateSet* stateset = osgNew osg::StateSet;
stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
stateset->setMode(GL_BLEND,osg::StateAttribute::ON);
stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
geoset->setStateSet(stateset);
return geoset;
}
bool ShadowVolumeOccluder::computeOccluder(const NodePath& nodePath,const ConvexPlanerOccluder& occluder,CullStack& cullStack,bool createDrawables)
bool ShadowVolumeOccluder::computeOccluder(const NodePath& nodePath,const ConvexPlanerOccluder& occluder,CullStack& cullStack,bool /*createDrawables*/)
{
@@ -291,24 +238,6 @@ bool ShadowVolumeOccluder::computeOccluder(const NodePath& nodePath,const Convex
_volume = computePolytopeVolume(points,farPoints)/volumeview;
if (createDrawables && !nodePath.empty())
{
osg::Group* group = dynamic_cast<osg::Group*>(nodePath.back());
if (group)
{
osg::Matrix invMV;
invMV.invert(MV);
transform(points,invMV);
transform(farPoints,invMV);
osg::Geode* geode = osgNew osg::Geode;
group->addChild(geode);
geode->addDrawable(createOccluderDrawable(points,farPoints));
}
}
for(ConvexPlanerOccluder::HoleList::const_iterator hitr=occluder.getHoleList().begin();
hitr!=occluder.getHoleList().end();
@@ -350,24 +279,6 @@ bool ShadowVolumeOccluder::computeOccluder(const NodePath& nodePath,const Convex
// remove the hole's volume from the occluder volume.
_volume -= computePolytopeVolume(points,farPoints)/volumeview;
if (createDrawables && !nodePath.empty())
{
osg::Group* group = dynamic_cast<osg::Group*>(nodePath.back());
if (group)
{
osg::Matrix invMV;
invMV.invert(MV);
transform(points,invMV);
transform(farPoints,invMV);
osg::Geode* geode = osgNew osg::Geode;
group->addChild(geode);
geode->addDrawable(createOccluderDrawable(points,farPoints));
}
}
}
}