Chapter 10

1 files changed, 9 insertions, 2 deletions

diff --git a/rtiaw.go b/rtiaw.go
index 99bc31a..d95501d 100644
--- a/rtiaw.go
+++ b/rtiaw.go
@@ -9,9 +9,16 @@ import (
 func main() {
   start := time.Now();
 
+  mat_ground := Lambertian{Vec3{0.8, 0.8, 0}};
+  mat_centre := Lambertian{Vec3{0.1, 0.2, 0.5}};
+  mat_left   := Metal{Vec3{0.8, 0.8, 0.8}, 0.3};
+  mat_right  := Metal{Vec3{0.8, 0.6, 0.2}, 1.0};
+
   var world Hittables;
-  world.Add(Sphere{Vec3{0,    0  , -1},   0.5});
-  world.Add(Sphere{Vec3{0, -100.5, -1}, 100  });
+  world.Add(Sphere{Vec3{ 0,   -100.5, -1  }, 100  , mat_ground});
+  world.Add(Sphere{Vec3{ 0,      0  , -1.2},   0.5, mat_centre});
+  world.Add(Sphere{Vec3{-1.0,    0  , -1  },   0.5, mat_left});
+  world.Add(Sphere{Vec3{ 1.0,    0  , -1  },   0.5, mat_right});
 
   cam := NewCamera(400, 16.0/9.0, 100, 50);
   cam.Render(world);