viz Directory Reference

Files
	camera.hpp
	The camera, as three angles and a distance.
	gl_api.hpp
	The OpenGL entry points this renderer uses, and only those.
	image.hpp
	An 8-bit colour image, and the one format this project writes it in.
	matrix4.hpp
	The 4-by-4 transforms a camera needs, and nothing else.
	point_renderer.hpp
	Drawing a few hundred thousand point masses as a field of stars.
	tone_map.hpp
	Turning accumulated light into pixels.
	viewer_window.hpp
	A window with an OpenGL context, and the controls that drive the camera.