1 files changed, 11 insertions, 3 deletions
diff --git a/rtiaw b/rtiaw
index 82e4303..71b4fbd 100755
--- a/rtiaw
+++ b/rtiaw
@@ -1,15 +1,23 @@
 #!/usr/bin/env ruby
 
-$LOAD_PATH.unshift File.dirname(__FILE__) + '/lib'
+$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), 'lib'))
 require 'interval'
 require 'vec3'
 require 'ray'
 require 'hittable'
 require 'camera'
+require 'material'
+
+mat_ground = Lambertian.new(0.8, 0.8, 0.0)
+mat_centre = Lambertian.new(0.1, 0.2, 0.5)
+mat_left = Metal.new(0.8, 0.8, 0.8, 0.3)
+mat_right = Metal.new(0.8, 0.6, 0.2, 1.0)
 
 world = Hittables.new
-world << Sphere.new(0,0,-1, 0.5)
-world << Sphere.new(0,-100.5,-1, 100)
+world << Sphere.new(0, -100.5, -1,    100,    mat_ground)
+world << Sphere.new(0,      0, -1,    0.5,    mat_centre)
+world << Sphere.new(-1,     0, -1,    0.5,    mat_left)
+world << Sphere.new(1,      0, -1,    0.5,    mat_right)
 
 camera = Camera.new(400, 16.0 / 9)
 camera.render(world)