lambertian.h

#ifndef LAMBERTIAN_H
#define LAMBERTIAN_H

#include "material.h"

class Lambertian : public Material {
public:
    Lambertian(const Vector3D& a) : m_vAlbedo(a) {}
    virtual bool Scatter(const Ray &r_in, const HitRecord &rec, Vector3D &attenuation, Ray &scattered) const {
        Vector3D vTarget = rec.m_vP + rec.m_vNormal + RandomInUnitSphere();
        scattered = Ray(rec.m_vP, vTarget - rec.m_vP);
        attenuation = m_vAlbedo;
        return true;
    }
    virtual int MatType() const {
        return 0;
    }
    virtual Vector3D MatColor() const {
        return m_vAlbedo;
    }
    virtual double MatFuzz() const {
        return 0;
    }
    virtual double MatRef() const {
        return 0;
    }
    Vector3D m_vAlbedo; 
};
#endif // LAMBERTIAN_H