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Fixes to the occluder culling code to properly disable occluders to prevent

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self occlusion.
This commit is contained in:
Robert Osfield
2002-06-17 09:10:26 +00:00
parent 156a9fbaea
commit 27412c27c9
10 changed files with 151 additions and 61 deletions
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38
src/osg/CullingSet.cpp
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@@ -13,21 +13,53 @@ CullingSet::~CullingSet()
{
}
void CullingSet::disableOccluder(NodePath& nodePath)
void PrintNodePath(const NodePath& nodePath)
{
//std::cout<<" trying to disable occluder"<<std::endl;
for(NodePath::const_iterator itr=nodePath.begin();
itr!=nodePath.end();
++itr)
{
std::cout<<*itr<<" ";
}
}
void CullingSet::disableAndPushOccludersCurrentMask(NodePath& nodePath)
{
//std::cout<<" trying to disable occluder ";PrintNodePath(nodePath);std::cout<<std::endl;
for(OccluderList::iterator itr=_occluderList.begin();
itr!=_occluderList.end();
++itr)
{
//std::cout<<" checking against ";PrintNodePath(itr->getNodePath());std::cout<<std::endl;
if (itr->getNodePath()==nodePath)
{
//std::cout<<" ++ disabling occluder"<<std::endl;
//std::cout<<" ++ disabling occluder "<<itr<<std::endl;
// we have trapped for the case an occlude potentially occluding itself,
// to prevent this we disable the results mask so that no subsequnt
// when the next pushCurrentMask calls happens this occluder is switched off.
itr->disableResultMasks();
itr->pushCurrentMask();
}
}
}
void CullingSet::popOccludersCurrentMask(NodePath& nodePath)
{
//std::cout<<" trying to pop occluder ";PrintNodePath(nodePath);std::cout<<std::endl;
for(OccluderList::iterator itr=_occluderList.begin();
itr!=_occluderList.end();
++itr)
{
//std::cout<<" checking against ";PrintNodePath(itr->getNodePath());std::cout<<std::endl;
if (itr->getNodePath()==nodePath)
{
//std::cout<<" popping occluder "<<itr<<std::endl;
// we have trapped for the case an occlude potentially occluding itself,
// to prevent this we disable the results mask so that no subsequnt
// when the next pushCurrentMask calls happens this occluder is switched off.
itr->popCurrentMask();
}
}
}