Goals

In this assignment, you will use barycentric coordinates to smoothly blend RGB colors within a triangle. You will also learn to write your image to a file in ppm (portable pix-map format).

RGB Triangle Assignment

Here are some triangles that were generated by such a program.

RGB at the vertices	Other RGB Colors at the Vertices

• Your program should work with any triangle in your graphics space, e.g. with all vertex coordinates between 0 and 300.
• Your program should work with any RGB colors assigned to the vertices.
• You can get the data for your triangles by:
  • reading the information from a file, or
  • reading mouse clicks, or
  • generating appropriate random numbers.
• You must ouput your image to a ppm file.

What to submit
A zipped folder containing:

• your code
• a readme.txt file containing:
  • instructions on how to run your program
  • what to expect as output
  • data file(s) if required
  • how I can change the triangles and their colors
  • anything that causes your program to crash
• NOTHING ELSE

How to submit
Email your zipped work as an attachment to fell@ccs.neu.edu with Subject: CSG540-triangle.

Grading
Your program will be graded on:

• correctness (60%).
• style of your program (10%)
• documentation:
  • inline comments (10%)
  • README (10%)
• quality of the resulting image(s). (10%)

Some points may be subtracted (up to 10%) if you need substantial help from the TA or professor to make your program run.

The penalty for a late homework is 5% per calendar day for up to one week late.
No homework will be accepted later than that.

Last Updated:
The URL for this document is: http://www.ccs.neu.edu/home/fell/CSU540/programs/CSU540ColorTriangle.html