54d490e24b
should be applied to a node or its child with the new osg::Node::setCullingActive() flag. A mechanism has been implemented so that if child has its culling disabled then their parents, all the way up to the root are also have their culling implicitly disabled. The osg::CullVisitor has updated to take account of both the explicit control via setCullingActive and the implicit culling disabling through children being disabled. This feature is useful for nodes which don't have a bounding volume to cull against, earth sky implementations and light sources. The default osg::Node::_cullingActive is true, i.e. culling is enabled by default.
153 lines
3.8 KiB
C++
153 lines
3.8 KiB
C++
#include "osg/Node"
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#include "osgDB/Registry"
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#include "osgDB/Input"
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#include "osgDB/Output"
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using namespace osg;
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using namespace osgDB;
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// forward declare functions to use later.
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bool Node_readLocalData(Object& obj, Input& fr);
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bool Node_writeLocalData(const Object& obj, Output& fw);
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// register the read and write functions with the osgDB::Registry.
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RegisterDotOsgWrapperProxy g_NodeProxy
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(
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new osg::Node,
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"Node",
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"Object Node",
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&Node_readLocalData,
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&Node_writeLocalData
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);
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bool Node_readLocalData(Object& obj, Input& fr)
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{
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bool iteratorAdvanced = false;
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Node& node = static_cast<Node&>(obj);
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if (fr.matchSequence("name %s"))
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{
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node.setName(fr[1].getStr());
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fr+=2;
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iteratorAdvanced = true;
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}
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if (fr[0].matchWord("cullingActive"))
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{
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if (fr[1].matchWord("FALSE"))
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{
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node.setCullingActive(false);
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iteratorAdvanced = true;
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fr+=2;
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}
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else if (fr[1].matchWord("TRUE"))
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{
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node.setCullingActive(true);
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iteratorAdvanced = true;
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fr+=2;
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}
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}
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// if (fr.matchSequence("user_data {"))
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// {
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// notify(DEBUG) << "Matched user_data {"<<endl;
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// int entry = fr[0].getNoNestedBrackets();
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// fr += 2;
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//
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// while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
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// {
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// Object* object = fr.readObject();
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// if (object) setUserData(object);
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// notify(DEBUG) << "read "<<object<<endl;
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// ++fr;
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// }
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// iteratorAdvanced = true;
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// }
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while (fr.matchSequence("description {"))
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{
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int entry = fr[0].getNoNestedBrackets();
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fr += 2;
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while (!fr.eof() && fr[0].getNoNestedBrackets()>entry)
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{
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node.addDescription(fr[0].getStr());
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++fr;
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}
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iteratorAdvanced = true;
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}
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while (fr.matchSequence("description %s"))
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{
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node.addDescription(fr[1].getStr());
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fr+=2;
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iteratorAdvanced = true;
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}
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static ref_ptr<StateSet> s_drawstate = new osg::StateSet;
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if (StateSet* readState = static_cast<StateSet*>(fr.readObjectOfType(*s_drawstate)))
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{
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node.setStateSet(readState);
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iteratorAdvanced = true;
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}
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return iteratorAdvanced;
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}
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bool Node_writeLocalData(const Object& obj, Output& fw)
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{
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const Node& node = static_cast<const Node&>(obj);
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if (!node.getName().empty()) fw.indent() << "name "<<'"'<<node.getName()<<'"'<<endl;
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fw.indent() << "cullingActive ";
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if (node.getCullingActive()) fw << "TRUE"<<endl;
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else fw << "FALSE"<<endl;
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// if (_userData)
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// {
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// Object* object = dynamic_cast<Object*>(_userData);
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// if (object)
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// {
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// fw.indent() << "user_data {"<<endl;
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// fw.moveIn();
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// object->write(fw);
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// fw.moveOut();
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// fw.indent() << "}"<<endl;
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// }
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// }
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if (!node.getDescriptions().empty())
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{
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if (node.getDescriptions().size()==1)
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{
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fw.indent() << "description "<<'"'<<node.getDescriptions().front()<<'"'<<endl;
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}
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else
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{
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fw.indent() << "description {"<<endl;
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fw.moveIn();
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for(Node::DescriptionList::const_iterator ditr=node.getDescriptions().begin();
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ditr!=node.getDescriptions().end();
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++ditr)
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{
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fw.indent() << '"'<<*ditr<<'"'<<endl;
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}
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fw.moveOut();
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fw.indent() << "}"<<endl;
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}
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}
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if (node.getStateSet())
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{
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fw.writeObject(*node.getStateSet());
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}
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return true;
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}
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