2/5/10 - We had a discussion in class regarding how to model the camera in the ray tracer. Suggested method:

VRP = [x y z] and VRP = [x' y' z'] (Ross suggests setting VRP = [0 0 -1]. VRP.VPN = 1

To calculate field of view, if focal length = 10 and iw =2, fov = 2 arctan 1/10

Needs to be cleaned up.

Y/Z = y/f , Y/f = y/z

y = Yf/Z

y = Yz/f = Yf/Z

z/f = f/Z

...

z=f^2/Z

zZ = f^2

The boxed equation is called the 'lensmakers equation' and is discussed here: http://en.wikipedia.org/wiki/Lens_(optics)

We ended here on Monday February 8.

d represents size of aperture

P is the intersection of 2 rays shot through the thin lens from p. (see next slide)

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Colorado State University, Fort Collins, CO 80523 USA

© 2010 Colorado State University