@@ -44,4 +44,8 @@ From Chapter 11:
![Chapter 11 refraction rendering test](output/ch11_refraction.png)
-![Chapter 11 rendering test](output/ch11_test.png)
+![Chapter 11 rendering test](output/ch11_test.png)
+
+From Chapter 12:
+![Chapter 12 rendering test](output/ch12_test.png)