/usr/share/openscenegraph/examples/osgshape/osgshape.cpp is in openscenegraph-examples 3.2.0~rc1-4.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | /* OpenSceneGraph example, osgshape.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <osg/Geode>
#include <osg/ShapeDrawable>
#include <osg/Material>
#include <osg/Texture2D>
#include <osgUtil/ShaderGen>
#include <osgViewer/Viewer>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osg/Math>
// for the grid data..
#include "../osghangglide/terrain_coords.h"
osg::Geode* createShapes()
{
osg::Geode* geode = new osg::Geode();
// ---------------------------------------
// Set up a StateSet to texture the objects
// ---------------------------------------
osg::StateSet* stateset = new osg::StateSet();
osg::Image* image = osgDB::readImageFile( "Images/lz.rgb" );
if (image)
{
osg::Texture2D* texture = new osg::Texture2D;
texture->setImage(image);
texture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR);
stateset->setTextureAttributeAndModes(0,texture, osg::StateAttribute::ON);
}
stateset->setMode(GL_LIGHTING, osg::StateAttribute::ON);
geode->setStateSet( stateset );
float radius = 0.8f;
float height = 1.0f;
osg::TessellationHints* hints = new osg::TessellationHints;
hints->setDetailRatio(0.5f);
geode->addDrawable(new osg::ShapeDrawable(new osg::Sphere(osg::Vec3(0.0f,0.0f,0.0f),radius),hints));
geode->addDrawable(new osg::ShapeDrawable(new osg::Box(osg::Vec3(2.0f,0.0f,0.0f),2*radius),hints));
geode->addDrawable(new osg::ShapeDrawable(new osg::Cone(osg::Vec3(4.0f,0.0f,0.0f),radius,height),hints));
geode->addDrawable(new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(6.0f,0.0f,0.0f),radius,height),hints));
geode->addDrawable(new osg::ShapeDrawable(new osg::Capsule(osg::Vec3(8.0f,0.0f,0.0f),radius,height),hints));
osg::HeightField* grid = new osg::HeightField;
grid->allocate(38,39);
grid->setXInterval(0.28f);
grid->setYInterval(0.28f);
for(unsigned int r=0;r<39;++r)
{
for(unsigned int c=0;c<38;++c)
{
grid->setHeight(c,r,vertex[r+c*39][2]);
}
}
geode->addDrawable(new osg::ShapeDrawable(grid));
osg::ConvexHull* mesh = new osg::ConvexHull;
osg::Vec3Array* vertices = new osg::Vec3Array(4);
(*vertices)[0].set(9.0+0.0f,-1.0f+2.0f,-1.0f+0.0f);
(*vertices)[1].set(9.0+1.0f,-1.0f+0.0f,-1.0f+0.0f);
(*vertices)[2].set(9.0+2.0f,-1.0f+2.0f,-1.0f+0.0f);
(*vertices)[3].set(9.0+1.0f,-1.0f+1.0f,-1.0f+2.0f);
osg::UByteArray* indices = new osg::UByteArray(12);
(*indices)[0]=0;
(*indices)[1]=2;
(*indices)[2]=1;
(*indices)[3]=0;
(*indices)[4]=1;
(*indices)[5]=3;
(*indices)[6]=1;
(*indices)[7]=2;
(*indices)[8]=3;
(*indices)[9]=2;
(*indices)[10]=0;
(*indices)[11]=3;
mesh->setVertices(vertices);
mesh->setIndices(indices);
geode->addDrawable(new osg::ShapeDrawable(mesh));
return geode;
}
int main(int, char **)
{
// construct the viewer.
osgViewer::Viewer viewer;
// add model to viewer.
viewer.setSceneData( createShapes() );
return viewer.run();
}
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