void apply(osg::Geometry& geom)
{
geom.setUseDisplayList(false);
if (!_manualVertexAliasing) return;
osg::notify(osg::NOTICE)<<"Found geometry "<<&geom<<std::endl;
if (geom.getVertexArray())
{
setVertexAttrib(geom, _vertexAlias, geom.getVertexArray(), false, osg::Array::BIND_PER_VERTEX);
geom.setVertexArray(0);
}
if (geom.getNormalArray())
{
setVertexAttrib(geom, _normalAlias, geom.getNormalArray(), true);
geom.setNormalArray(0);
}
if (geom.getColorArray())
{
setVertexAttrib(geom, _colorAlias, geom.getColorArray(), false);
geom.setColorArray(0);
}
if (geom.getSecondaryColorArray())
{
setVertexAttrib(geom, _secondaryColorAlias, geom.getSecondaryColorArray(), false);
geom.setSecondaryColorArray(0);
}
if (geom.getFogCoordArray())
{
// should we normalize the FogCoord array? Don't think so...
setVertexAttrib(geom, _fogCoordAlias, geom.getFogCoordArray(), false);
geom.setFogCoordArray(0);
}
unsigned int maxNumTexCoords = geom.getNumTexCoordArrays();
if (maxNumTexCoords>8)
{
osg::notify(osg::NOTICE)<<"Warning: Ignoring "<<maxNumTexCoords-8<<" texture coordinate arrays, only 8 are currently supported in vertex attribute conversion code."<<std::endl;
maxNumTexCoords = 8;
}
for(unsigned int i=0; i<maxNumTexCoords; ++i)
{
if (geom.getTexCoordArray(i))
{
setVertexAttrib(geom, _texCoordAlias[i], geom.getTexCoordArray(i), false, osg::Array::BIND_PER_VERTEX);
geom.setTexCoordArray(i,0);
}
else
{
osg::notify(osg::NOTICE)<<"Found empty TexCoordArray("<<i<<")"<<std::endl;
}
}
}
void createDAIGeometry( osg::Geometry& geom, int nInstances=1 )
{
const float halfDimX( .5 );
const float halfDimZ( .5 );
osg::Vec3Array* v = new osg::Vec3Array;
v->resize( 4 );
geom.setVertexArray( v );
// Geometry for a single quad.
(*v)[ 0 ] = osg::Vec3( -halfDimX, 0., 0. );
(*v)[ 1 ] = osg::Vec3( halfDimX, 0., 0. );
(*v)[ 2 ] = osg::Vec3( halfDimX, 0., halfDimZ*2.0f );
(*v)[ 3 ] = osg::Vec3( -halfDimX, 0., halfDimZ*2.0f );
// create color array data (each corner of our triangle will have one color component)
osg::Vec4Array* pColors = new osg::Vec4Array;
pColors->push_back( osg::Vec4( 1.0f, 0.0f, 0.0f, 1.0f ) );
pColors->push_back( osg::Vec4( 0.0f, 1.0f, 0.0f, 1.0f ) );
pColors->push_back( osg::Vec4( 0.0f, 0.0f, 1.0f, 1.0f ) );
pColors->push_back( osg::Vec4( 0.0f, 0.0f, 1.0f, 1.0f ) );
geom.setColorArray( pColors );
// make sure that our geometry is using one color per vertex
geom.setColorBinding( osg::Geometry::BIND_PER_VERTEX );
osg::Vec2Array* pTexCoords = new osg::Vec2Array( 4 );
(*pTexCoords)[0].set( 0.0f, 0.0f );
(*pTexCoords)[1].set( 1.0f, 0.0f );
(*pTexCoords)[2].set( 1.0f, 1.0f );
(*pTexCoords)[3].set( 0.0f, 1.0f );
geom.setTexCoordArray( 0, pTexCoords );
// Use the DrawArraysInstanced PrimitiveSet and tell it to draw 1024 instances.
geom.addPrimitiveSet( new osg::DrawArrays( GL_QUADS, 0, 4, nInstances ) );
}
nave(int x,int y, int z, int tamaño)
{
pyramidGeode = new osg::Geode();
pyramidGeometry = new osg::Geometry();
pyramidGeode->addDrawable(pyramidGeometry);
osg::Vec3Array* pyramidVertices = new osg::Vec3Array;
//0-4
pyramidVertices->push_back( osg::Vec3( x, y, z) ); // front left
//1-5
pyramidVertices->push_back( osg::Vec3(tamaño+x, y, z) ); // front right
//2-6
pyramidVertices->push_back( osg::Vec3(tamaño+x,tamaño+y, z) ); // back right
//3-7
pyramidVertices->push_back( osg::Vec3( x,tamaño+y, z) ); // back left
//4-0
pyramidVertices->push_back( osg::Vec3( x, y,tamaño+z) ); // peak
//5-1
pyramidVertices->push_back( osg::Vec3(tamaño+x, y,tamaño+z) ); // front right
//6-2
pyramidVertices->push_back( osg::Vec3(tamaño+x,tamaño+y,tamaño+z) ); // back right
//7-3
pyramidVertices->push_back( osg::Vec3( x,tamaño+y,tamaño+z) ); // back left
pyramidGeometry->setVertexArray( pyramidVertices );
osg::DrawElementsUInt* pyramidBase =
new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0);
pyramidBase->push_back(3);
pyramidBase->push_back(2);
pyramidBase->push_back(1);
pyramidBase->push_back(0);
pyramidGeometry->addPrimitiveSet(pyramidBase);
osg::DrawElementsUInt* pyramidTop =
new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0);
pyramidTop->push_back(4);
pyramidTop->push_back(5);
pyramidTop->push_back(6);
pyramidTop->push_back(7);
pyramidGeometry->addPrimitiveSet(pyramidTop);
//Repeat the same for each of the four sides. Again, vertices are
//specified in counter-clockwise order.
osg::DrawElementsUInt* pyramidFaceOne =
new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0);
pyramidFaceOne->push_back(0);
pyramidFaceOne->push_back(1);
pyramidFaceOne->push_back(5);
pyramidFaceOne->push_back(4);
pyramidGeometry->addPrimitiveSet(pyramidFaceOne);
osg::DrawElementsUInt* pyramidFaceTwo =
new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0);
pyramidFaceTwo->push_back(1);
pyramidFaceTwo->push_back(2);
pyramidFaceTwo->push_back(6);
pyramidFaceTwo->push_back(5);
pyramidGeometry->addPrimitiveSet(pyramidFaceTwo);
osg::DrawElementsUInt* pyramidFaceThree =
new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0);
pyramidFaceThree->push_back(2);
pyramidFaceThree->push_back(3);
pyramidFaceThree->push_back(7);
pyramidFaceThree->push_back(6);
pyramidGeometry->addPrimitiveSet(pyramidFaceThree);
osg::DrawElementsUInt* pyramidFaceFour =
new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0);
pyramidFaceFour->push_back(3);
pyramidFaceFour->push_back(0);
pyramidFaceThree->push_back(4);
pyramidFaceFour->push_back(7);
pyramidGeometry->addPrimitiveSet(pyramidFaceFour);
//Declare and load an array of Vec4 elements to store colors.
osg::Vec4Array* colors = new osg::Vec4Array;
colors->push_back(osg::Vec4(0.0f, 0.0f, 0.0f, 1.0f) ); //index 0 red
colors->push_back(osg::Vec4(0.0f, 0.0f, 0.0f, 1.0f) ); //index 1 green
colors->push_back(osg::Vec4(0.0f, 0.0f, 0.0f, 1.0f) ); //index 2 blue
colors->push_back(osg::Vec4(0.0f, 0.0f, 0.0f, 1.0f) ); //index 3 white
colors->push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f) ); //index 4 red
colors->push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f) ); //index 4 red
colors->push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f) ); //index 4 red
colors->push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f) ); //index 4 red
//The next step is to associate the array of colors with the geometry,
//assign the color indices created above to the geometry and set the
//binding mode to _PER_VERTEX.
pyramidGeometry->setColorArray(colors);
pyramidGeometry->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
};