void
TerrainEngineNode::preInitialize( const Map* map, const TerrainOptions& options )
{
_map = map;
// fire up a terrain utility interface
_terrainInterface = new Terrain( this, map->getProfile(), map->isGeocentric(), options );
// set up the CSN values
_map->getProfile()->getSRS()->populateCoordinateSystemNode( this );
// OSG's CSN likes a NULL ellipsoid to represent projected mode.
if ( !_map->isGeocentric() )
this->setEllipsoidModel( NULL );
// install the proper layer composition technique:
_texCompositor = new TextureCompositor( options );
// prime the compositor with pre-existing image layers:
MapFrame mapf(map, Map::IMAGE_LAYERS);
for( unsigned i=0; i<mapf.imageLayers().size(); ++i )
{
_texCompositor->applyMapModelChange( MapModelChange(
MapModelChange::ADD_IMAGE_LAYER,
mapf.getRevision(),
mapf.getImageLayerAt(i),
i ) );
}
// then register the callback so we can process further map model changes
_map->addMapCallback( new TerrainEngineNodeCallbackProxy( this ) );
// enable backface culling
osg::StateSet* set = getOrCreateStateSet();
//set->setAttributeAndModes( new osg::CullFace( osg::CullFace::BACK ), osg::StateAttribute::ON );
set->setMode( GL_CULL_FACE, 1 );
// elevation uniform
// NOTE: wrong...this should be per-CullVisitor...consider putting in the Culling::CullUserData
_cameraElevationUniform = new osg::Uniform( osg::Uniform::FLOAT, "osgearth_CameraElevation" );
_cameraElevationUniform->set( 0.0f );
set->addUniform( _cameraElevationUniform.get() );
set->getOrCreateUniform( "osgearth_ImageLayerAttenuation", osg::Uniform::FLOAT )->set(
*options.attentuationDistance() );
if ( options.enableMercatorFastPath().isSet() )
{
OE_INFO
<< LC << "Mercator fast path "
<< (options.enableMercatorFastPath()==true? "enabled" : "DISABLED") << std::endl;
}
_initStage = INIT_PREINIT_COMPLETE;
}
void
TerrainEngineNode::preInitialize( const Map* map, const TerrainOptions& options )
{
_map = map;
// set up the CSN values
_map->getProfile()->getSRS()->populateCoordinateSystemNode( this );
// OSG's CSN likes a NULL ellipsoid to represent projected mode.
if ( !_map->isGeocentric() )
this->setEllipsoidModel( NULL );
// install the proper layer composition technique:
_texCompositor = new TextureCompositor( options );
// prime the compositor with pre-existing image layers:
MapFrame mapf(map, Map::IMAGE_LAYERS);
for( unsigned i=0; i<mapf.imageLayers().size(); ++i )
{
_texCompositor->applyMapModelChange( MapModelChange(
MapModelChange::ADD_IMAGE_LAYER,
mapf.getRevision(),
mapf.getImageLayerAt(i),
i ) );
}
// then register the callback so we can process further map model changes
_map->addMapCallback( new TerrainEngineNodeCallbackProxy( this ) );
// enable backface culling
osg::StateSet* set = getOrCreateStateSet();
set->setAttributeAndModes( new osg::CullFace( osg::CullFace::BACK ), osg::StateAttribute::ON );
// elevation uniform
_cameraElevationUniform = new osg::Uniform( osg::Uniform::FLOAT, "osgearth_CameraElevation" );
_cameraElevationUniform->set( 0.0f );
set->addUniform( _cameraElevationUniform.get() );
set->getOrCreateUniform( "osgearth_ImageLayerAttenuation", osg::Uniform::FLOAT )->set(
*options.attentuationDistance() );
_initStage = INIT_PREINIT_COMPLETE;
}