} //暂时只用于做动态模糊,相对于相机的速度,而动态模糊的目前处理为[0,1)*center.就是说,center为time0时刻球心,center1=center+speed*delta_time为time1时刻球心
public Sphere(Vec3 _center, float _radius, BaseMaterial _material, Vec3 _speed = null)
{
center = _center;
radius = _radius;
material = _material;
speed = _speed;
}
public HitRecord(float _t, Vec3 _hit_point, Vec3 _normal, BaseMaterial _material)
{
t = _t;
hit_point = _hit_point;
normal = _normal;
material = _material;
}
public Plane(Vec3 _normal, float _d, BaseMaterial _material)
{
normal = _normal;
d = _d;
material = _material;
}