65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
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#if defined(_MSC_VER)
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#pragma warning( disable : 4786 )
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#endif
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#include <stdio.h>
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#include <list>
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#include <set>
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#include <osg/GeoSet>
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#include <osgUtil/VisualsRequirementsVisitor>
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using namespace osg;
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using namespace osgUtil;
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VisualsRequirementsVisitor::VisualsRequirementsVisitor()
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{
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setTraversalMode(NodeVisitor::TRAVERSE_ALL_CHILDREN);
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_requiresDoubleBuffer = true;
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_requiresRBG = true;
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_requiresDepthBuffer = true;
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_minimumNumberAlphaBits = 0;
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_minimumNumberStencilBits = 0;
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}
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void VisualsRequirementsVisitor::applyStateSet(StateSet& stateset)
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{
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if (stateset.getMode(GL_STENCIL_TEST) & StateAttribute::ON)
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{
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_minimumNumberStencilBits = 1;
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}
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if (stateset.getAttribute(StateAttribute::STENCIL))
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{
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_minimumNumberStencilBits = 1;
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}
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}
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void VisualsRequirementsVisitor::apply(Node& node)
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{
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osg::StateSet* stateset = node.getStateSet();
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if (stateset) applyStateSet(*stateset);
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traverse(node);
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}
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void VisualsRequirementsVisitor::apply(Geode& geode)
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{
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osg::StateSet* geode_stateset = geode.getStateSet();
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if (geode_stateset) applyStateSet(*geode_stateset);
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for(int i = 0; i < geode.getNumDrawables(); i++ )
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{
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osg::StateSet* stateset = geode.getDrawable(i)->getStateSet();
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if (stateset) applyStateSet(*stateset);
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}
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}
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void VisualsRequirementsVisitor::apply(Impostor& impostor)
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{
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_minimumNumberAlphaBits = 1;
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apply((Node&)impostor);
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}
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