Render four objects in four viewports of a single display window. (An example is provided at the end.)
Set the display window size to 512 by 512 pixels.
Show your name (or both names if you work with a partner) in the title of the display window.
By showing your name(s) in the title, you certify that the job is your individual work (or a fair share with your partner).
For each object, the clipping window coordinates are [-10, 10] by [-10, 10], and the background color is the same.
The background color is suggested to be (0.7, 0.7, 0.7, 1.0) in RGBA, but you can use your own background color.
The four objects are described below.
Design a stipple pattern and use it to stipple a triangle with the vertices (-8, -6), (8, -6), and (0, 8).
You must design your own pattern.
You need render the triangle twice, with different colors.
Draw the polar curve
.
Use a color that is apparently different from the background color.
Set the line width to 2.
Draw the xy-coordinates as a reference.
In a shallow color and the line width is 1.
The radius of the disk is 8.
A tick is a short line segment. For example, the tick at 1 o’clock could be a line segment connecting and.
Draw a clock with a round face, 12 ticks and 3 hands.
The face is a round disk filled with a color different from the background.
The ticks are in a different color.
The hands point to the time 3:45.
Shade the region between the curves of
and
over the interval [-4, 4].
Use GL_QUAD_STRIP to shade the region because the region is concave.
Use a different color to draw the curves with thick line strips.
As a reference, draw the xy-coordinates as well.