Computer graphics is generally, the representation of a 3D scene on a 2D plane.
	Traditionally accomplished using a pipeline to compose transformations from object space to screen space.

Object Space (3D)

	Also called modeling space
	Object of unit size centered at origin
	Model of object constructed using, typically, triangle strips
	glVertex3f(-0.25, 0, 0)

World Space (3D)

	Position, rotate, scale object in relation to other objects
	Light object
	glMatrixMode(GL_MODELVIEW)

Eye Space (3D)

	Also called normalized viewing space
	Position, rotate, scale object as seen by camera
	Clip, remove, objects not visible within camera frustrum
	glMatrixMode(GL_PROJECTION)

Viewport Space (3D)

	Also called image space
	Project objects onto camera's 2D viewport
	Clip, remove, hidden surfaces

Screen Space (2D)

	Scale object to device coordinates, based on dimensions of window on screen
	Scan convert, rasterize, object from geometry to pixels
	Color object based on capabilities of hardware
	glViewport(0, 0, theWindowWidth, theWindowHeight)

	Notes on 2D and 3D transforms
	The transformation game from Brown University