CMSI 371
CO M P U T E R GR A P H I C S
Spring 2007
Assignment 0301
This assignment seeks to reinforce recently-covered concepts via programming. While it isn’t due until after
the midterm, you might want to at least think about how you would approach these tasks (or even start
them a little bit) as part of your preparation, since they should give you some real, hands-on exposure to the
ideas of digital color and point/vector manipulation.
For Submission #1
Extend the Nanoshop sample program by imple-
menting two (2) new color changers for it. Ideas
include, but are not restricted to: brightness
changer, contrast changer, inverter (i.e., creating a
photo negative), and a tinter/blender.
Commit your code to /homework/cmsi371/nanoshop
and tag it as hw-0301.
For Submission #2
Modify the Battleballs sample program in the fol-
lowing ways:
1. Change the shape of the battle room from the
inside of a sphere to the inside of a cube (or
rectangular prism). Make sure to modify both
the way the room is drawn and the way the
“balls” detect collisions against and bounce off
its walls.
2. Change the “balls” into one of the shapes that
you created for your 3D fiveshapes program. Be
sure to adjust the values used in testing for col-
lisions so that the bounding spheres used cor-
respond to the size of your new “ball” shape.
Make sure to download and include the vector li-
brary from Graphics Gems; the link to the reposi-
tory is available on the course Web site.
Commit your code to /homework/cmsi371/battleballs
and tag it as hw-0301.