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/* 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 <osgGA/StateSetManipulator>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osg/Math>
// for the grid data..
#include "../osghangglide/terrain_coords.h"
osg::Geode* createShapes(osg::ArgumentParser& arguments)
{
osg::Geode* geode = new osg::Geode();
// ---------------------------------------
// Set up a StateSet to texture the objects
// ---------------------------------------
osg::StateSet* stateset = new osg::StateSet();
osg::ref_ptr<osg::Image> image = osgDB::readRefImageFile( "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;
if (arguments.read("--large"))
{
unsigned int numX = 512;
unsigned int numY = 512;
double sizeX = 10.0;
double sizeY = 10.0;
grid->allocate(numX,numY);
grid->setXInterval(sizeX/float(numX));
grid->setYInterval(sizeY/float(numY));
for(unsigned int r=0;r<numY;++r)
{
for(unsigned int c=0;c<numX;++c)
{
double rx = double(c)/double(numX-1);
double ry = double(r)/double(numY-1);
grid->setHeight(c, r, 2.0*sin(rx*ry*4.0*osg::PI));
}
}
}
else
{
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 argc, char **argv)
{
osg::ArgumentParser arguments(&argc,argv);
// construct the viewer.
osgViewer::Viewer viewer(arguments);
// add model to viewer.
viewer.setSceneData( createShapes(arguments) );
// add the state manipulator
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
return viewer.run();
}
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