44d144997e
into osgDB::Registry/osgTerrain so that newly created subgraphs can have KdTree built on all osg::Geometry automatically on load/creation.
124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
/* OpenSceneGraph example, osgintersection.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <osgDB/ReadFile>
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#include <osg/ArgumentParser>
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#include <osg/ApplicationUsage>
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#include <osg/Timer>
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#include <osg/CoordinateSystemNode>
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#include <osg/Notify>
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#include <osg/io_utils>
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#include <osg/Geometry>
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#include <osg/TriangleIndexFunctor>
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#include <osgUtil/IntersectionVisitor>
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#include <osgUtil/LineSegmentIntersector>
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#include <osgUtil/UpdateVisitor>
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#include <osgSim/LineOfSight>
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#include <osgSim/HeightAboveTerrain>
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#include <osgSim/ElevationSlice>
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#include <osgViewer/Viewer>
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#include "fixeddivision.h"
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#include "variabledivision.h"
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#include <osg/KdTree>
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int main(int argc, char **argv)
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{
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// use an ArgumentParser object to manage the program arguments.
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osg::ArgumentParser arguments(&argc,argv);
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int maxNumLevels = 16;
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int targetNumIndicesPerLeaf = 16;
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bool processTriangles = true;
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while (arguments.read("--max", maxNumLevels)) {}
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while (arguments.read("--leaf", targetNumIndicesPerLeaf)) {}
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while (arguments.read("--points")) processTriangles = false;
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while (arguments.read("--triangles")) processTriangles = true;
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osgDB::Registry::instance()->setBuildKdTreesHint(osgDB::ReaderWriter::Options::BUILD_KDTREES);
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osg::ref_ptr<osg::Node> scene = osgDB::readNodeFiles(arguments);
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if (!scene)
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{
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std::cout<<"No model loaded, please specify a valid model on the command line."<<std::endl;
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return 0;
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}
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osgUtil::UpdateVisitor updateVisitor;
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updateVisitor.setFrameStamp(new osg::FrameStamp);
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scene->accept(updateVisitor);
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scene->getBound();
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if (arguments.read("--fd"))
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{
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fixeddivision::KDTreeBuilder builder;
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builder._maxNumLevels = maxNumLevels;
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builder._targetNumIndicesPerLeaf = targetNumIndicesPerLeaf;
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builder._processTriangles = processTriangles;
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osg::Timer_t start = osg::Timer::instance()->tick();
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scene->accept(builder);
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osg::Timer_t end = osg::Timer::instance()->tick();
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double time = osg::Timer::instance()->delta_s(start,end);
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osg::notify(osg::NOTICE)<<"Time to build "<<time*1000.0<<"ms "<<builder._numVerticesProcessed<<std::endl;
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osg::notify(osg::NOTICE)<<"build speed "<<(double(builder._numVerticesProcessed)/time)/1000000.0<<"M vertices per second"<<std::endl;
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}
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else if (arguments.read("--vd"))
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{
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variabledivision::KDTreeBuilder builder;
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builder._maxNumLevels = maxNumLevels;
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builder._targetNumTrianglesPerLeaf = targetNumIndicesPerLeaf;
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builder._processTriangles = processTriangles;
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osg::Timer_t start = osg::Timer::instance()->tick();
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scene->accept(builder);
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osg::Timer_t end = osg::Timer::instance()->tick();
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double time = osg::Timer::instance()->delta_s(start,end);
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osg::notify(osg::NOTICE)<<"Time to build "<<time*1000.0<<"ms "<<builder._numVerticesProcessed<<std::endl;
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osg::notify(osg::NOTICE)<<"build speed "<<(double(builder._numVerticesProcessed)/time)/1000000.0<<"M vertices per second"<<std::endl;
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}
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else
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{
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osgViewer::Viewer viewer;
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viewer.setSceneData(scene.get());
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return viewer.run();
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}
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return 0;
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}
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