Defocus blur & randow scene generation

2 files changed, 15 insertions, 1 deletions

diff --git a/include/camera.hpp b/include/camera.hpp
index 0b3d20e..88ece6f 100644
--- a/include/camera.hpp
+++ b/include/camera.hpp
@@ -5,15 +5,27 @@
 
 class camera {
     public:
-        camera(point3 position, point3 target, double v_fov, double aspect_ratio);
+        camera(
+            point3 position,
+            point3 target,
+            double v_fov,
+            double aspect_ratio,
+            double aperture,
+            double focus_dist
+        );
 
         ray get_ray(double u, double v) const;
 
         point3 position;
+        double lens_radius;
 
         vec3 horizontal;
         vec3 vertical;
 
+        vec3 forward;
+        vec3 right;
+        vec3 up;
+
         point3 bottom_left_pixel;
 };
 
diff --git a/include/vec3.hpp b/include/vec3.hpp
index 7d38472..4bed1b0 100644
--- a/include/vec3.hpp
+++ b/include/vec3.hpp
@@ -63,6 +63,8 @@ vec3 random_unit_vector();
 
 vec3 random_in_hemisphere(const vec3& normal);
 
+vec3 random_in_unit_disk();
+
 using point3 = vec3;
 using color = vec3;