ThinLensCamera.cpp File Reference

Thin lens camera approximation supporting common camera inputs and allowing for depth of field. More...

#include "ThinLensCamera.h"
#include <ResourceManager.h>
#include <Material.h>
#include <Viewport.h>
#include <Scene.h>
#include <algebra.h>
#include <QtCore>

Go to the source code of this file.

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Detailed Description

Thin lens camera approximation supporting common camera inputs and allowing for depth of field.

Author:

Travis Fischer (fisch0920@gmail.com)

Date:

January 2008

Parameters:

	aperture	- diameter of the aperature of the lens in mm (eg. 35mm, 50mm)
	fstop	- (aka F number), is defined as the unitless ratio of the focal length to the diameter of the aperture of the lens
	focalDistance	- the distance in meters between the lens and the focal plane (objects lying on the focal plane will be in perfect focus)
	focalPoint	- (optional) user may specify a focalPoint in NDC on the film-plane instead of specifying a focalDistance to "auto-focus" the object intersected by a ray traced through the corresponding pixel, whose distance away from the lens will be used as the focalDistance.

Note:

focalPoint is expressed as a vector2 in the unit square [0,1]^2, where [0,0] is the lower left corner of the image, and [1,1] is the upper-right corner

(focal length is derived from fstop and aperture)

See also:

http://www.eecs.berkeley.edu/~barsky/VisRendPapers/survey1.pdf

Definition in file ThinLensCamera.cpp.