Ray/box Intersection

Ray/box intersection using Smits' algorithm

The zip file includes one example of intersection.

Author:
Jesús Mena

References:
[1] "Efficiency issues for ray tracing".
B. Smits.
Journal of Graphics Tools, 3(2):1–14, 1998.

[2] "An efficient and robust ray-box intersection algorithm"
A. Williams, S. Barrus, and R.K. Morley and P. Shirley.
Journal of Graphics, GPU, & Game Tools, 10(1):45-60, 2005.

[3] Other algorithms:
http://www.realtimerendering.com/intersections.html