56 lines
1.7 KiB
C++
56 lines
1.7 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 OSGUTIL_SMOOTHINGVISITOR
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#define OSGUTIL_SMOOTHINGVISITOR 1
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#include <osg/NodeVisitor>
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#include <osg/Geode>
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#include <osg/Geometry>
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#include <osgUtil/Export>
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namespace osgUtil {
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/** A smoothing visitor for calculating smoothed normals for
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* osg::GeoSet's which contains surface primitives.
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*/
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class OSGUTIL_EXPORT SmoothingVisitor : 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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SmoothingVisitor();
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virtual ~SmoothingVisitor();
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/// smooth geoset by creating per vertex normals.
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static void smooth(osg::Geometry& geoset, double creaseAngle=osg::PI);
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/// apply smoothing method to all geode geosets.
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virtual void apply(osg::Geode& geode);
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/// set the maximum angle, in radians, at which angle between adjacent triangles that normals are smoothed
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/// for edges that greater the shared vertices are duplicated
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void setCreaseAngle(double angle) { _creaseAngle = angle; }
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double getCreaseAngle() const { return _creaseAngle; }
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protected:
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double _creaseAngle;
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};
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}
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#endif
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