CSCI 480/580 Lecture
7 - In-Class Problems
- Given a frame e, u, v, w, and the \(u,v\) coordinates of pixel \((i,j)\), give the viewing ray for pixel
\((i,j)\). Your answer should be given
in terms of e, u, v, w, \(u\), and \(v\).
- In lecture we saw how to create camera basis vectors
u, v, w given an
eye position, view direction, and
up vector. Repeat this calculation, except instead of a
view direction vector you’re given a 3D point
at that the camera is looking directly towards.
- The “view volume” associated with a projection is the volume of 3D
space that projects onto the image plane/viewport. Describe (informally)
the shape of the view volume for an orthographic camera
and a perspective camera.