Download Program 2 Due - SIUE Computer Science

CS 482.001 - Computer Graphics
Fall 2016
Your second programming assignment is to expand a simple
entire solar system. The program uses texture mapping of
similar fashion to the earth and moon. The flying NASA
implemented on simple quadrilaterals, which will enable you
Programming Assignment #2 (75 points)
Due: 12:00 Noon, Thursday, September 22, 2016
model of the earth and the moon (illustrated below) into a more elaborate model of the
quadric surfaces and simple quadrilaterals. The additional planets will be modeled in a
logo in the original program is provided to illustrate how texture mapping may be
to handle the particle system that surrounds the new sun model.
Linked to the course Web site (http://www.cs.siue.edu/wwhite/CS482/Syllabus.htm) is a project file containing the earth and moon model. Your
assignment is to expand this model to include the sun and all of its surrounding planets, using the following set of specifications:
Planet
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
Planet
Radius
0.1
0.18
0.18
0.3
0.6
0.5
0.3
0.3
0.05
Orbit
Radius
1.5
2.0
3.0
3.5
5.0
7.0
8.5
9.0
10.0
Orbit Duration
(in Earth days)
88
225
365
686
4333
10759
30685
60190
90800
Rotation Duration
(in Earth days)
59
-243
1
1
0.4
0.4
-0.7
0.7
-6
Inclination
(in degrees)
7
3
7
2
1
2
1
2
17
Note that negative rotation durations represent rotations in the direction opposite to that of the earth. Also, the planet Saturn has rings with an
outer radius twice the size of the planet’s radius. Bitmaps to support all of the planetary textures have been provided.
In addition to the existing key-control of viewer position (arrow keys for viewing angle, z/Z for zooming in and out) and animation speed (+/-), you
will need to provide key controls for activating and blending the sun’s particle system (i.e., b/B for toggling blending, p/P for toggling particles). The
particle system will surround the unit-radius solar sphere (centered at the origin) with hundreds of texture-mapped quadrilaterals, as illustrated on
back of this page. When blended (see pages 357-362 of the OpenGL SuperBible for details), the combined effect of the particle system is to surround
the sun with a flowing luminescent glow. Each square particle should have the following characteristics:
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




Size, ranging between a minimum and maximum size.
Radius (r), varying slightly from the radius of the sun’s sphere.
Zenith (), varying slightly from its original value between 0 and .
Azimuth (), varying slightly from its original value between 0 and 2.
Color, varying somewhat from some base color (probably a reddish hue).
Lifespan, varying slightly from some base value to make the square appear to fade away.
Note that the code for the particle system class has been provided. It just needs to be instantiated and activated within your driver. The RGBpixmap
code used to texture map the original earth and moon models may be used similarly for the other spherical objects. Note that a gluCylinder quadric
object (with negligible height) may be used to model the rings of Saturn.
An executable version of this program is provided. Note the required functionality, illustrated below:
The sun with its particle system deactivated.
The particle system is activated, but blending has been turned off.
Activate blending, giving the sun’s surface a fiery, gaseous appearance.
The solar system, as seen from an overhead vantage point.
Zip-compress a folder containing only the relevant .cpp and .h files, and copy it to your dropbox by Thursday, September 22, 2016, at 12:00 Noon.
Late assignments are not accepted without verifiable medical documentation. You must write your own code, and no one but the instructor may see
your code.