mirror of
https://github.com/vonhyou/ray-tracer-comp371.git
synced 2025-06-08 07:22:01 +00:00
80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
#ifndef LIGHT_H_
|
|
#define LIGHT_H_
|
|
|
|
#include "HitRecord.h"
|
|
#include <Eigen/Core>
|
|
#include <vector>
|
|
|
|
using Eigen::Matrix;
|
|
using Eigen::Matrix4f;
|
|
using Eigen::Vector3f;
|
|
using std::vector;
|
|
|
|
// Abstract base class for Lights
|
|
class Light {
|
|
public:
|
|
enum class Type { Point, Area };
|
|
|
|
virtual ~Light() = default;
|
|
virtual Vector3f illumination(const HitRecord &,
|
|
const vector<Geometry *> &) const = 0;
|
|
virtual Vector3f getCenter() const = 0;
|
|
|
|
protected:
|
|
Light(Type type, const Vector3f &id, const Vector3f &is)
|
|
: type_(type), id_(id), is_(is) {}
|
|
|
|
Type type_;
|
|
Vector3f id_;
|
|
Vector3f is_;
|
|
Matrix4f transform = Matrix4f::Identity(); // optional member `transform`
|
|
unsigned int gridSize = 0; // optional member `n`
|
|
bool useCenter = false; // optional member `usecenter`
|
|
bool use = true; // this appears in a json file
|
|
|
|
public:
|
|
void setTransform(const Matrix4f &);
|
|
void setGridSize(unsigned int);
|
|
void setUseCenter(bool);
|
|
void setIsUse(bool);
|
|
Type type() const;
|
|
Vector3f id() const;
|
|
Vector3f is() const;
|
|
bool isUse() const;
|
|
};
|
|
|
|
class AreaLight : public Light {
|
|
public:
|
|
AreaLight(const Vector3f &id, const Vector3f &is, const Vector3f &p1,
|
|
const Vector3f &p2, const Vector3f &p3, const Vector3f &p4)
|
|
: Light(Type::Area, id, is), p1(p1), p2(p2), p3(p3), p4(p4) {}
|
|
|
|
virtual Vector3f illumination(const HitRecord &,
|
|
const vector<Geometry *> &) const override;
|
|
|
|
private:
|
|
Vector3f p1, p2, p3, p4;
|
|
|
|
public:
|
|
Vector3f getCenter() const override;
|
|
};
|
|
|
|
class PointLight : public Light {
|
|
public:
|
|
PointLight(const Vector3f &id, const Vector3f &is, const Vector3f ¢er)
|
|
: Light(Type::Point, id, is), center(center) {}
|
|
|
|
PointLight(const AreaLight &al, const Vector3f ¢er)
|
|
: PointLight(al.id(), al.is(), center) {}
|
|
|
|
virtual Vector3f illumination(const HitRecord &,
|
|
const vector<Geometry *> &) const override;
|
|
|
|
private:
|
|
Vector3f center;
|
|
|
|
public:
|
|
Vector3f getCenter() const override;
|
|
};
|
|
|
|
#endif // !LIGHT_H_
|