VRS - The Virtual Rendering System

version 3.3

staticlightingoperator.h

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/******************************************************************************
 * VRS - The Virtual Rendering System
 * Copyright (C) 2000-2008 Computer Graphics Systems Group at the 
 * Hasso-Plattner-Institute (HPI), Potsdam, Germany.
 *
 * This  library  is  free  software; you can redistribute it and/or  modify it
 * under the terms of the GNU Lesser General Public  License  as  published  by
 * the  Free  Software  Foundation;  either  version 2.1 of the License, or (at
 * your option) any later version. This library  is  distributed  in  the  hope
 * that  it will be useful, but  WITHOUT ANY WARRANTY; without even the implied
 * warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE.  See  the
 * GNU Lesser General Public License for more details. You should have received
 * a copy of the GNU Lesser+ General Public License along with this library; if
 * not, write to the FreeSoftware Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA, 02111-1307, USA.
 ******************************************************************************/

#ifndef VRS_SG_STATICLIGHTINGOPERATOR_H
#define VRS_SG_STATICLIGHTINGOPERATOR_H

#include <vrs/visitor.h>
#include <vrs/light.h>
#include <vrs/polygonset.h>
#include <vrs/transform.h>
#include <vrs/container/array.h>
#include <vrs/container/stack.h>
#include <vrs/sg/scenegraphoperator.h>
#include <vrs/opengl/shapematerialgl.h>

namespace VRS {

class VRS_CORE_API StaticLightingOperator :     public SceneGraphOperator,
                                                                                                public Visitor<Light>,
                                                                                                public Visitor<PolygonSet>,
                                                                                                public Visitor<ShapeMaterialGL>,
                                                                                                public Visitor<Transform>,
                                                                                                public Visitor<SceneThing>
{
public:
        StaticLightingOperator(bool removeLights = true) : removeLights_(removeLights) {}

        virtual void optimizeScene(SO<SceneNode>& scene);
        virtual VisitorBase::VisitMode visit(Light* light, bool push);
        virtual VisitorBase::VisitMode visit(PolygonSet* shape, bool push);
        virtual VisitorBase::VisitMode visit(ShapeMaterialGL* material, bool push);
        virtual VisitorBase::VisitMode visit(Transform* transform, bool push);
        virtual VisitorBase::VisitMode visit(SceneThing* thing, bool push);

private:
        bool removeLights_;

        SO<Array<SO<Light> > > lights_;
        SO<Array<Matrix> > lightTransforms_;
        SO<Array<SO<PolygonSet> > > shapes_;
        SO<Array<SO<ShapeMaterialGL> > > materials_;
        SO<Array<Matrix> > transforms_;

        SO<Stack<SO<ShapeMaterialGL> > > materialStack_;
        SO<Stack<Matrix> > transformStack_;

        void computeLighting(void);
};

} // namespace VRS

#endif // VRS_SG_STATICLIGHTINGOPERATOR_H

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