C++ (Cpp) VirtualProgram::setIsAbstractの例

コード例 #1

RexTerrainEngineNode::RexTerrainEngineNode() :
TerrainEngineNode     ( ),
_terrain              ( 0L ),
_tileCount            ( 0 ),
_tileCreationTime     ( 0.0 ),
_batchUpdateInProgress( false ),
_refreshRequired      ( false ),
_stateUpdateRequired  ( false )
{
    // Necessary for pager object data
    this->setName("osgEarth.RexTerrainEngineNode");

    // unique ID for this engine:
    _uid = Registry::instance()->createUID();

    // always require elevation.
    _requireElevationTextures = true;

    // install an elevation callback so we can update elevation data
    _elevationCallback = new ElevationChangedCallback( this );

    // static shaders.
    if ( Registry::capabilities().supportsGLSL() )
    {
        osg::StateSet* stateset = getOrCreateStateSet();
        VirtualProgram* vp = VirtualProgram::getOrCreate(stateset);
        vp->setName("RexTerrainEngineNode");
        vp->setIsAbstract(true);    // cannot run by itself, requires additional children
        Shaders package;
        package.load(vp, package.SDK);
    }

    // TODO: replace with a "renderer" object that can return statesets
    // for different layer types, or something.
    _imageLayerStateSet = new osg::StateSet();
}