VRS - The Virtual Rendering System

version 3.3

rayintersector.h

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/******************************************************************************
 * VRS - The Virtual Rendering System
 * Copyright (C) 2000-2007 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.
 ******************************************************************************/

// $Id: rayintersector.h 6281 2008-03-10 10:01:14Z Konstantin_Baumann $

#ifndef VRS_RAYINTERSECTOR_H
#define VRS_RAYINTERSECTOR_H

#include <vrs/handler.h>
#include <vrs/engine.h>
#include <vrs/raytracingtechnique.h>

namespace VRS {

class VRS_CORE_API RayIntersector : public Handler {
public:
    virtual ID service() const;
    virtual bool intersect(
        Engine* ctx,
        const Matrix& mv, const Matrix& ori, const Matrix& pr,
        const Shape* S, const Ray& r, RayTracingTechnique* tracer
    ) = 0;
    VRS_TYPEINFO(RayIntersector, Handler);

public:
    static bool intersectTriangle(
        const Vector& rayorigin, const Vector& raydirection,
        const Vector& V0, const Vector& V1, const Vector& V2,
        const Vector& normal, Vector& pointRet
    );

protected:
    static bool intersectTriangle(
        const Vector& rayorigin, const Vector& raydirection,
        const Vector& V0, const Vector& V1, const Vector& V2,
        const Matrix& mv, const Matrix& ori, const Matrix& pr,
        const Shape* S,
        RayTracingTechnique* tracer,
        int hint = 0,
        unsigned int instanceInfo = 0,
        UINT32 id = 0
    );
    
};

} // namespace VRS

#endif // VRS_RAYINTERSECTOR_H

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