9574ce97d2
Converted AnimationPath so it is now subclassed from osg::Transform::ComputeTransfromCallback() so that it can be directly attached to the scene to move objects about. Changed the osg::SateSet::setGlobalDefaults() so that is sets GL_DEPTH_TEST to ON. Added guards and creation of default helper classes in osgGLUT::Viewer and osgUtil::SceneView so that sensible defaults are used when no settings are used of osg::State/StateSet,osgUtil::RenderStage/RenderGraph/CullVisitor.
117 lines
3.1 KiB
C++
117 lines
3.1 KiB
C++
#include <osg/AnimationPath>
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#include <osg/NodeVisitor>
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using namespace osg;
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void AnimationPath::insert(double time,const Key& key)
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{
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_timeKeyMap[time] = key;
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}
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bool AnimationPath::getMatrix(double time,Matrix& matrix) const
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{
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if (_timeKeyMap.empty()) return false;
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TimeKeyMap::const_iterator second = _timeKeyMap.lower_bound(time);
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if (second==_timeKeyMap.begin())
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{
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second->second.getMatrix(matrix);
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}
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else if (second!=_timeKeyMap.end())
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{
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TimeKeyMap::const_iterator first = second;
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--first;
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// we have both a lower bound and the next item.
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// deta_time = second.time - first.time
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double delta_time = second->first - first->first;
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if (delta_time==0.0)
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first->second.getMatrix(matrix);
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else
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{
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Key key;
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key.interpolate((time - first->first)/delta_time,
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first->second,
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second->second);
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key.getMatrix(matrix);
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}
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}
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else // (second==_timeKeyMap.end())
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{
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_timeKeyMap.rbegin().base()->second.getMatrix(matrix);
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}
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return true;
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}
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bool AnimationPath::getInverse(double time,Matrix& matrix) const
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{
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if (_timeKeyMap.empty()) return false;
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TimeKeyMap::const_iterator second = _timeKeyMap.lower_bound(time);
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if (second==_timeKeyMap.begin())
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{
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second->second.getInverse(matrix);
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}
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else if (second!=_timeKeyMap.end())
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{
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TimeKeyMap::const_iterator first = second;
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--first;
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// we have both a lower bound and the next item.
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// deta_time = second.time - first.time
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double delta_time = second->first - first->first;
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if (delta_time==0.0)
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first->second.getInverse(matrix);
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else
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{
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Key key;
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key.interpolate((time - first->first)/delta_time,
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first->second,
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second->second);
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key.getInverse(matrix);
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}
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}
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else // (second==_timeKeyMap.end())
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{
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_timeKeyMap.rbegin().base()->second.getInverse(matrix);
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}
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return true;
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}
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const bool AnimationPath::computeLocalToWorldMatrix(Matrix& matrix,const Transform*, NodeVisitor* nv) const
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{
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if (nv)
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{
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const osg::FrameStamp* fs = nv->getFrameStamp();
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if (fs)
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{
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osg::Matrix localMatrix;
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getMatrix(fs->getReferenceTime(),localMatrix);
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matrix.preMult(localMatrix);
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return true;
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}
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}
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return false;
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}
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/** Get the transformation matrix which moves from world coords to local coords.*/
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const bool AnimationPath::computeWorldToLocalMatrix(Matrix& matrix,const Transform* , NodeVisitor* nv) const
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{
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if (nv)
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{
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const osg::FrameStamp* fs = nv->getFrameStamp();
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if (fs)
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{
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osg::Matrix localInverse;
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getInverse(fs->getReferenceTime(),localInverse);
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matrix.postMult(localInverse);
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return true;
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}
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}
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return false;
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}
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