CpSc 465, Principles of Computer Graphics
due March 10
In this assignment, you will add features to
If you used SPiGoT, or if you did not finish
the first assignment, I will provide you with a working OpenGL program.
Replace the OpenGL line-drawing routine (GL_LINES) with
Bresenham's Algorithm (GL_POINTS). Your implementation should
allow lines to be drawn in any direction.
Add a visible clip rectangle to the display, drawn in a separate color.
The clip rectangle should have two visible handles, and the user should
be able to resize the clip rectangle interactively. Rubber-band the
rectangle in the same manner as the rest of the lines:
Add a menu item that will allow the user to toggle clipping. When
clipping is turned on, continue to draw the markers at the end points
of lines but do not draw the lines outside the clip rectangle:
Extra Credit, worth up to 25% extra on this assignment
Add another menu item for the user to toggle antialiasing. When
antialiasing is turned on, use one of the algorithms discussed in class
to smooth jagged lines. Document the algorithm you use.