115 lines
3.1 KiB
C++
115 lines
3.1 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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//
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// OpenFlight® loader for OpenSceneGraph
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//
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// Copyright (C) 2005-2006 Brede Johansen
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//
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#ifndef OSGSIM_OPENFLIGHTOPTIMIZER
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#define OSGSIM_OPENFLIGHTOPTIMIZER
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#include <osg/NodeVisitor>
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#include <osg/Group>
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#include <osg/Geometry>
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#include <osgSim/Export>
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namespace osgFlightUtil {
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/** Flight optimizer
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*/
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class OSGSIM_EXPORT Optimizer
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{
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public:
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Optimizer() {}
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virtual ~Optimizer() {}
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enum OptimizationOptions
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{
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TESSELLATE_POLYGON = 0x001,
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MERGE_GEODES = 0x002,
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MAKE_LIT = 0x004,
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DEFAULT_OPTIMIZATIONS = TESSELLATE_POLYGON | MERGE_GEODES,
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ALL_OPTIMIZATIONS = TESSELLATE_POLYGON | MERGE_GEODES
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};
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/** Traverse the node and its subgraph with a series of optimization
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* visitors, specified by the OptimizationOptions.*/
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void optimize(osg::Node* node);
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/** Traverse the node and its subgraph with a series of optimization
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* visitors, specified by the OptimizationOptions.*/
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virtual void optimize(osg::Node* node, unsigned int options);
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protected:
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public:
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class OSGSIM_EXPORT TessellateVisitor : 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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TessellateVisitor() :
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osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
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virtual void apply(osg::Geode& geode);
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protected:
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bool hasPolygons(osg::Geometry& geometry);
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};
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class OSGSIM_EXPORT MakeLitVisitor : 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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MakeLitVisitor() :
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osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
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virtual void apply(osg::Geode& geode);
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};
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/** Combine geodes
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*/
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class OSGSIM_EXPORT MergeGeodesVisitor : 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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MergeGeodesVisitor() :
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osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
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virtual void apply(osg::Group& group);
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void mergeGeodes(osg::Group& group);
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protected:
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bool mergeGeode(osg::Geode& lhs, osg::Geode& rhs);
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};
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};
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} // end namespace
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#endif
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