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68 lines
2.2 KiB
68 lines
2.2 KiB
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield |
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* |
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* This library is open source and may be redistributed and/or modified under |
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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* (at your option) any later version. The full license is in LICENSE file |
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* included with this distribution, and on the openscenegraph.org website. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* OpenSceneGraph Public License for more details. |
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*/ |
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#ifndef OSGSIM_INSERTIMPOSTORSVISITOR |
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#define OSGSIM_INSERTIMPOSTORSVISITOR |
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#include <osg/NodeVisitor> |
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#include <osgSim/Impostor> |
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namespace osgSim { |
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/** Insert impostor nodes into scene graph. |
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* For example of usage see examples/osgimpostor. |
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*/ |
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class OSGSIM_EXPORT InsertImpostorsVisitor : public osg::NodeVisitor |
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{ |
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public: |
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/** Default to traversing all children. */ |
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InsertImpostorsVisitor(); |
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META_NodeVisitor("osgSim","InsertImpostorsVisitor") |
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void setImpostorThresholdRatio(float ratio) { _impostorThresholdRatio = ratio; } |
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float getImpostorThresholdRatio() const { return _impostorThresholdRatio; } |
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void setMaximumNumberOfNestedImpostors(unsigned int num) { _maximumNumNestedImpostors = num; } |
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unsigned int getMaximumNumberOfNestedImpostors() const { return _maximumNumNestedImpostors; } |
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/** Empty visitor, make it ready for next traversal. */ |
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void reset(); |
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virtual void apply(osg::Node& node); |
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virtual void apply(osg::Group& node); |
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virtual void apply(osg::LOD& node); |
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/* Insert the required impostors into the scene graph. */ |
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void insertImpostors(); |
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protected: |
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typedef std::vector< osg::Group* > GroupList; |
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typedef std::vector< osg::LOD* > LODList; |
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GroupList _groupList; |
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LODList _lodList; |
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float _impostorThresholdRatio; |
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unsigned int _maximumNumNestedImpostors; |
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unsigned int _numNestedImpostors; |
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}; |
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} |
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#endif
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