def get_ray(self, s: float, t: float) -> Ray:
rd: Vec3 = Vec3.random_in_unit_disk() * self.lens_radius
offset: Vec3 = self.u * rd.x() + self.v * rd.y()
return Ray(
self.origin + offset,
(self.lower_left_corner
+ self.horizontal*s + self.vertical*t
- self.origin - offset)
)
def get_ray(self, s, t):
if len(s) != len(t):
raise ValueError
rd = Vec3.random_in_unit_disk(len(s)) * self.lens_radius
u = Vec3List.from_vec3(self.u, len(s))
v = Vec3List.from_vec3(self.v, len(s))
offset_list = u.mul_ndarray(rd[0]) + v.mul_ndarray(rd[1])
origin_list = offset_list + self.origin
horizontal_multi = Vec3List.from_vec3(self.horizontal, len(s))
vertical_multi = Vec3List.from_vec3(self.vertical, len(s))
direction_list = (horizontal_multi.mul_ndarray(s) - vertical_multi.mul_ndarray(t) + self.top_left_corner - self.origin - offset_list)
return RayList(origin_list, direction_list)
