chap 9.3

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/camera.rb b/lib/camera.rb
index f8721bb..6a3b190 100644
--- a/lib/camera.rb
+++ b/lib/camera.rb
@@ -1,8 +1,9 @@
 class Camera
-  def initialize(width = 100, aspect = 1.0, aliasing = 10)
+  def initialize(width = 100, aspect = 1.0, aliasing = 10, depth = 10)
     @width = width
     @aspect = aspect
     @aliasing = aliasing
+    @depth = depth
 
     # Height
     @height = (@width / @aspect).to_i
@@ -40,7 +41,7 @@ class Camera
       @width.times do |col|
         p_colour = Colour.new
         @aliasing.times do
-          p_colour += get_ray(row, col).colour(world)
+          p_colour += get_ray(row, col).colour(world, @depth)
         end
         puts (p_colour / @aliasing).to_ppm
       end