SomePointsGenerator::SomePointsGenerator():osg::Geometry()
{
setUseVertexBufferObjects(true);
osg::StateSet* sset = getOrCreateStateSet();
sset->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
vAry = new osg::Vec4Array;;
vAry->push_back( osg::Vec4(0,0,0,1) );
vAry->push_back( osg::Vec4(0,1,0,1) );
vAry->push_back( osg::Vec4(1,0,0,1) );
vAry->push_back( osg::Vec4(1,1,0,1 ));
addPrimitiveSet( new osg::DrawArrays( GL_POINTS, 0, vAry->size() ) );
setVertexArray( vAry );
_program=createGeneratorShader() ;
sset->setAttribute(_program );
// a generic cyclic animation value
osg::Uniform* u_anim1( new osg::Uniform( "u_anim1", 0.9f ) );
u_anim1->setUpdateCallback( new SineAnimation( 4, 0.5, 0.5 ) );
sset->addUniform( u_anim1 );
}
SomePoints()
{
osg::Vec4Array* cAry = new osg::Vec4Array;
setColorArray( cAry, osg::Array::BIND_OVERALL );
cAry->push_back( osg::Vec4(1,1,1,1) );
osg::Vec3Array* vAry = new osg::Vec3Array;
setVertexArray( vAry );
vAry->push_back( osg::Vec3(0,0,0) );
vAry->push_back( osg::Vec3(0,1,0) );
vAry->push_back( osg::Vec3(1,0,0) );
vAry->push_back( osg::Vec3(1,1,0) );
vAry->push_back( osg::Vec3(0,0,1) );
vAry->push_back( osg::Vec3(0,1,1) );
vAry->push_back( osg::Vec3(1,0,1) );
vAry->push_back( osg::Vec3(1,1,1) );
addPrimitiveSet( new osg::DrawArrays( GL_POINTS, 0, vAry->size() ) );
osg::StateSet* sset = getOrCreateStateSet();
sset->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
// if things go wrong, fall back to big points
osg::Point* p = new osg::Point;
p->setSize(6);
sset->setAttribute( p );
#ifdef ENABLE_GLSL
sset->setAttribute( createShader() );
// a generic cyclic animation value
osg::Uniform* u_anim1( new osg::Uniform( "u_anim1", 0.0f ) );
u_anim1->setUpdateCallback( new SineAnimation( 4, 0.5, 0.5 ) );
sset->addUniform( u_anim1 );
#endif
}
