shapes3D Directory Reference

Files
	bbox_3d.cpp
	3D bounding box implementation.
	bbox_3d.h
	Bounding Box class definition.
	bbox_3d_ray.cpp
	3D bounding box ray intersection tests.
	cylinder_3d.cpp
	cylinder_3d.h
	dummy_block_3d.cpp
	dummy_block_3d.h
	layer_item_3d.cpp
	layer_item_3d.h
	object_3d.cpp
	object_3d.h
	plane_3d.cpp
	plane_3d.h
	round_segment_3d.cpp
	round_segment_3d.h
	triangle_3d.cpp
	triangle_3d.h
	Implement a triangle ray intersection based on article http://www.flipcode.com/archives/Raytracing_Topics_Techniques-Part_7_Kd-Trees_and_More_Speed.shtml by Jacco Bikker, that implement optimizations based on Ingo Wald's thesis.