/*
This file belongs to the Ray tracing tutorial of http://www.codermind.com/
It is free to use for educational purpose and cannot be redistributed
outside of the tutorial pages.
Any further inquiry :
mailto:info@codermind.com
codermind.com is now dead and gone, I modified it to work in the winapi and quazi realtime.
The original pages are still available through the wayback machine:
http://web.archive.org/web/20131113102238/http://www.codermind.com/
source code was named as follows:
raytrace_en_page1.rar
raytrace_en_page2.rar
raytrace_en_page3.rar
raytrace_en_page4.rar
*/