1c699a3664
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14246 16af8721-9629-0410-8352-f15c8da7e697
79 lines
2.8 KiB
C++
79 lines
2.8 KiB
C++
/* -*-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 OSG_CLUSTERCULLINGCALLBACK
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#define OSG_CLUSTERCULLINGCALLBACK 1
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#include <osg/Drawable>
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#include <osg/Callback>
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namespace osg {
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/** Implements cluster culling to cull back facing drawables. Derived from
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* Drawable::CullCallback.
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*/
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class OSG_EXPORT ClusterCullingCallback : public Drawable::CullCallback, public NodeCallback
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{
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public:
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ClusterCullingCallback();
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ClusterCullingCallback(const ClusterCullingCallback& ccc,const CopyOp& copyop);
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ClusterCullingCallback(const osg::Vec3& controlPoint, const osg::Vec3& normal, float deviation);
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ClusterCullingCallback(const osg::Drawable* drawable);
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META_Object(osg,ClusterCullingCallback);
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// use the NodeCallbacks implementation of run.
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using NodeCallback::run;
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/** Computes the control point, normal, and deviation from the
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* given drawable contents. */
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void computeFrom(const osg::Drawable* drawable);
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/** Transform the ClusterCullingCallback's positional members to a new coordinate frame.*/
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void transform(const osg::Matrixd& matrix);
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void set(const osg::Vec3& controlPoint, const osg::Vec3& normal, float deviation, float radius);
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void setControlPoint(const osg::Vec3& controlPoint) { _controlPoint = controlPoint; }
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const osg::Vec3& getControlPoint() const { return _controlPoint; }
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void setNormal(const osg::Vec3& normal) { _normal = normal; }
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const osg::Vec3& getNormal() const { return _normal; }
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void setRadius(float radius) { _radius = radius; }
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float getRadius() const { return _radius; }
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void setDeviation(float deviation) { _deviation = deviation; }
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float getDeviation() const { return _deviation; }
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virtual bool cull(osg::NodeVisitor*, osg::Drawable*, osg::State*) const;
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/** Callback method called by the NodeVisitor when visiting a node.*/
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virtual void operator()(Node* node, NodeVisitor* nv);
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protected:
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virtual ~ClusterCullingCallback() {}
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osg::Vec3 _controlPoint;
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osg::Vec3 _normal;
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float _radius;
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float _deviation;
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};
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}
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#endif
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