153 lines
4.9 KiB
C++
153 lines
4.9 KiB
C++
/* OpenSceneGraph example, osgshape.
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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 <osg/Geode>
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#include <osg/ShapeDrawable>
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#include <osg/Material>
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#include <osg/Texture2D>
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#include <osgUtil/ShaderGen>
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#include <osgViewer/Viewer>
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#include <osgGA/StateSetManipulator>
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#include <osgDB/ReadFile>
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#include <osgDB/WriteFile>
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#include <osg/Math>
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// for the grid data..
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#include "../osghangglide/terrain_coords.h"
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osg::Geode* createShapes(osg::ArgumentParser& arguments)
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{
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osg::Geode* geode = new osg::Geode();
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// ---------------------------------------
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// Set up a StateSet to texture the objects
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// ---------------------------------------
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osg::StateSet* stateset = new osg::StateSet();
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osg::ref_ptr<osg::Image> image = osgDB::readRefImageFile( "Images/lz.rgb" );
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if (image)
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{
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osg::Texture2D* texture = new osg::Texture2D;
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texture->setImage(image);
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texture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR);
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stateset->setTextureAttributeAndModes(0,texture, osg::StateAttribute::ON);
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}
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stateset->setMode(GL_LIGHTING, osg::StateAttribute::ON);
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geode->setStateSet( stateset );
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float radius = 0.8f;
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float height = 1.0f;
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osg::TessellationHints* hints = new osg::TessellationHints;
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hints->setDetailRatio(0.5f);
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geode->addDrawable(new osg::ShapeDrawable(new osg::Sphere(osg::Vec3(0.0f,0.0f,0.0f),radius),hints));
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geode->addDrawable(new osg::ShapeDrawable(new osg::Box(osg::Vec3(2.0f,0.0f,0.0f),2*radius),hints));
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geode->addDrawable(new osg::ShapeDrawable(new osg::Cone(osg::Vec3(4.0f,0.0f,0.0f),radius,height),hints));
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geode->addDrawable(new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(6.0f,0.0f,0.0f),radius,height),hints));
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geode->addDrawable(new osg::ShapeDrawable(new osg::Capsule(osg::Vec3(8.0f,0.0f,0.0f),radius,height),hints));
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osg::HeightField* grid = new osg::HeightField;
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if (arguments.read("--large"))
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{
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unsigned int numX = 512;
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unsigned int numY = 512;
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double sizeX = 10.0;
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double sizeY = 10.0;
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grid->allocate(numX,numY);
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grid->setXInterval(sizeX/float(numX));
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grid->setYInterval(sizeY/float(numY));
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for(unsigned int r=0;r<numY;++r)
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{
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for(unsigned int c=0;c<numX;++c)
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{
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double rx = double(c)/double(numX-1);
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double ry = double(r)/double(numY-1);
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grid->setHeight(c, r, 2.0*sin(rx*ry*4.0*osg::PI));
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}
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}
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}
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else
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{
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grid->allocate(38,39);
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grid->setXInterval(0.28f);
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grid->setYInterval(0.28f);
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for(unsigned int r=0;r<39;++r)
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{
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for(unsigned int c=0;c<38;++c)
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{
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grid->setHeight(c,r,vertex[r+c*39][2]);
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}
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}
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}
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geode->addDrawable(new osg::ShapeDrawable(grid));
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osg::ConvexHull* mesh = new osg::ConvexHull;
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osg::Vec3Array* vertices = new osg::Vec3Array(4);
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(*vertices)[0].set(9.0+0.0f,-1.0f+2.0f,-1.0f+0.0f);
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(*vertices)[1].set(9.0+1.0f,-1.0f+0.0f,-1.0f+0.0f);
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(*vertices)[2].set(9.0+2.0f,-1.0f+2.0f,-1.0f+0.0f);
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(*vertices)[3].set(9.0+1.0f,-1.0f+1.0f,-1.0f+2.0f);
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osg::UByteArray* indices = new osg::UByteArray(12);
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(*indices)[0]=0;
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(*indices)[1]=2;
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(*indices)[2]=1;
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(*indices)[3]=0;
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(*indices)[4]=1;
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(*indices)[5]=3;
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(*indices)[6]=1;
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(*indices)[7]=2;
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(*indices)[8]=3;
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(*indices)[9]=2;
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(*indices)[10]=0;
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(*indices)[11]=3;
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mesh->setVertices(vertices);
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mesh->setIndices(indices);
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geode->addDrawable(new osg::ShapeDrawable(mesh));
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return geode;
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}
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int main(int argc, char **argv)
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{
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osg::ArgumentParser arguments(&argc,argv);
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// construct the viewer.
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osgViewer::Viewer viewer(arguments);
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// add model to viewer.
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viewer.setSceneData( createShapes(arguments) );
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// add the state manipulator
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viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
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return viewer.run();
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}
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