63 lines
1.2 KiB
C++
63 lines
1.2 KiB
C++
#include <osgUtil/RenderGraph>
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#include <osg/Notify>
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using namespace osg;
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using namespace osgUtil;
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void RenderGraph::reset()
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{
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_parent = NULL;
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_stateset = NULL;
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_depth = 0;
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_children.clear();
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_leaves.clear();
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}
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/** recursively clean the RenderGraph of all its drawables, lights and depths.
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* Leaves children intact, and ready to be populated again.*/
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void RenderGraph::clean()
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{
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// clean local drawables etc.
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_leaves.clear();
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// call clean on all children.
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for(ChildList::iterator itr=_children.begin();
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itr!=_children.end();
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++itr)
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{
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itr->second->clean();
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}
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}
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/** recursively prune the RenderGraph of empty children.*/
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void RenderGraph::prune()
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{
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std::vector<const osg::StateSet*> toEraseList;
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// call prune on all children.
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for(ChildList::iterator citr=_children.begin();
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citr!=_children.end();
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++citr)
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{
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citr->second->prune();
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if (citr->second->empty())
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{
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toEraseList.push_back(citr->first);
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}
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}
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for(std::vector<const osg::StateSet*>::iterator eitr=toEraseList.begin();
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eitr!=toEraseList.end();
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++eitr)
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{
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_children.erase(*eitr);
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}
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}
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