forked from teamnwah/openmw-tes3coop
32 lines
1 KiB
C++
32 lines
1 KiB
C++
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#include "statesetcontroller.hpp"
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#include <osg/Node>
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namespace SceneUtil
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{
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void StateSetController::operator()(osg::Node* node, osg::NodeVisitor* nv)
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{
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if (!mStateSets[0])
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{
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// first time setup
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osg::StateSet* src = node->getOrCreateStateSet();
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for (int i=0; i<2; ++i) // Using SHALLOW_COPY for StateAttributes, if users want to modify it is their responsibility to set a non-shared one first
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// This can be done conveniently in user implementations of the setDefaults() method
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{
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mStateSets[i] = static_cast<osg::StateSet*>(osg::clone(src, osg::CopyOp::SHALLOW_COPY));
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setDefaults(mStateSets[i]);
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}
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}
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// Swap to make the StateSet in [0] writable, [1] is now the StateSet that was queued by the last frame
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std::swap(mStateSets[0], mStateSets[1]);
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node->setStateSet(mStateSets[0]);
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apply(mStateSets[0], nv);
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traverse(node, nv);
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}
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}
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