pm.photonmap.h

/*
    Lightmetrica : A research-oriented renderer

    Copyright (c) 2014 Hisanari Otsu

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once
#ifndef LIB_LIGHTMETRICA_PM_PHOTONMAP_H
#define LIB_LIGHTMETRICA_PM_PHOTONMAP_H

#include "common.h"
#include "component.h"
#include "pm.photon.h"
#include <functional>

LM_NAMESPACE_BEGIN

class PhotonMap : public Component
{
public:

    LM_COMPONENT_INTERFACE_DEF("pm.photonmap");

public:

    PhotonMap() {}
    virtual ~PhotonMap() {}

private:

    LM_DISABLE_COPY_AND_MOVE(PhotonMap);

public:

    typedef std::function<void (const Math::Vec3&, const Photon&, Math::Float&)> PhotonCollectFunc;

public:

    virtual void Build(const Photons& photons) = 0;
    virtual void CollectPhotons(const Math::Vec3& p, Math::Float& maxDist2, const PhotonCollectFunc& collectFunc) const = 0;
    virtual void GetPhotons(std::vector<const Photon*>& photons) const = 0;

};

LM_NAMESPACE_END

#endif // LIB_LIGHTMETRICA_PM_PHOTONMAP_H