FGFS-4.1/OpenSceneGraph
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Flesh out more of basic ShadowTechnique and ShadowedScene API.

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This commit is contained in:
Robert Osfield
2007-02-08 17:23:40 +00:00
parent 47622e6134
commit 95befaf1ed
5 changed files with 120 additions and 24 deletions
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49
src/osgShadow/ShadowTechnique.cpp
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@@ -12,14 +12,59 @@
*/
#include <osgShadow/ShadowTechnique>
#include <osgShadow/ShadowedScene>
#include <osg/Notify>
using namespace osgShadow;
ShadowTechnique::ShadowTechnique()
ShadowTechnique::ShadowTechnique():
_shadowedScene(0),
_dirty(true)
{
}
ShadowTechnique::ShadowTechnique(const ShadowTechnique& copy, const osg::CopyOp& copyop):
osg::Object(copy,copyop)
osg::Object(copy,copyop),
_shadowedScene(0),
_dirty(true)
{
}
void ShadowTechnique::init()
{
osg::notify(osg::NOTICE)<<className()<<"::init() not implemened yet"<<std::endl;
_dirty = false;
}
void ShadowTechnique::update(osg::NodeVisitor& nv)
{
osg::notify(osg::NOTICE)<<className()<<"::update(osg::NodeVisitor&) not implemened yet."<<std::endl;
_shadowedScene->osg::Group::traverse(nv);
}
void ShadowTechnique::cull(osg::NodeVisitor& nv)
{
osg::notify(osg::NOTICE)<<className()<<"::cull(osg::NodeVisitor&) not implemened yet."<<std::endl;
_shadowedScene->osg::Group::traverse(nv);
}
void ShadowTechnique::traverse(osg::NodeVisitor& nv)
{
if (!_shadowedScene) return;
if (nv.getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
{
if (_dirty) init();
update(nv);
}
else if (nv.getVisitorType() == osg::NodeVisitor::CULL_VISITOR)
{
cull(nv);
}
else
{
_shadowedScene->osg::Group::traverse(nv);
}
}

48
src/osgShadow/ShadowedScene.cpp
View File

@@ -32,26 +32,42 @@ ShadowedScene::ShadowedScene(const ShadowedScene& copy, const osg::CopyOp& copyo
setNumChildrenRequiringUpdateTraversal(getNumChildrenRequiringUpdateTraversal()+1);
}
ShadowedScene::~ShadowedScene()
{
setShadowTechnique(0);
}
void ShadowedScene::traverse(osg::NodeVisitor& nv)
{
if (nv.getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
if (_shadowTechnique.valid())
{
Group::traverse(nv);
return;
_shadowTechnique->traverse(nv);
}
if (nv.getVisitorType() != osg::NodeVisitor::CULL_VISITOR)
else
{
Group::traverse(nv);
return;
osg::Group::traverse(nv);
}
}
void ShadowedScene::setShadowTechnique(ShadowTechnique* technique)
{
if (_shadowTechnique == technique) return;
if (_shadowTechnique.valid()) _shadowTechnique->_shadowedScene = 0;
_shadowTechnique = technique;
if (_shadowTechnique.valid())
{
_shadowTechnique->_shadowedScene = this;
_shadowTechnique->dirty();
}
}
void ShadowedScene::dirty()
{
if (_shadowTechnique.valid())
{
_shadowTechnique->dirty();
}
osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(&nv);
if (!cv)
{
Group::traverse(nv);
return;
}
Group::traverse(nv);
}