primitives.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_PRIMITIVES_H
#define LIB_LIGHTMETRICA_PRIMITIVES_H

#include "component.h"
#include "math.types.h"
#include "aabb.h"

LM_NAMESPACE_BEGIN

class Assets;
class ConfigNode;
struct Primitive;
struct Ray;
struct Intersection;
class Camera;
class Light;
class Scene;

class Primitives : public Component
{
public:

    LM_COMPONENT_INTERFACE_DEF("primitives");

public:

    Primitives() {}
    virtual ~Primitives() {}

private:

    LM_DISABLE_COPY_AND_MOVE(Primitives);

public:

    virtual bool Load(const ConfigNode& node, const Assets& assets) = 0;

    virtual bool PostConfigure(const Scene& scene) = 0;

    virtual bool IntersectEmitterShapes(Ray& ray, Intersection& isect) const = 0;

    virtual AABB GetAABBEmitterShapes() const = 0;

    virtual void Reset() = 0;

    virtual int NumPrimitives() const = 0;

    virtual const Primitive* PrimitiveByIndex(int index) const = 0;

    virtual const Primitive* PrimitiveByID(const std::string& id) const = 0;

    virtual const Camera* MainCamera() const = 0;

    virtual int NumLights() const = 0;

    virtual const Light* LightByIndex(int index) const = 0;

};

LM_NAMESPACE_END

#endif // LIB_LIGHTMETRICA_PRIMITIVES_H