Click on the bottle to see a larger view of it.
(17k)
Here are some of the projects I did in Comuter Science 418
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In this project, we were to use
parametric equations to express the shape of a surface.
We start with a 2 dimensional texture, andfunctionally
determined the radius at a certain point in terms of the
height and the effective angle. This bottle was made with
different functions at different heights in the bottle.
The rippled effect was made with low amplitude, high
frequency sine waves in both the height direction, and
the radial direction. This gives it the repeating surface
of peaks and values. Click on the bottle to see a larger view of it. (17k) |
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This head was made using the
"Blobby Modeling" technique. This involves
basically placing poitive and negative spheres with
certain strengths, and the computer interpolates from
these spheres to create a "blobby" object. The
animation is done by starting all of the positive spheres
at the origin with a unit strength and the negative
spheres ar the origin with a strength of 0. Then, the
comuputer interpolates them out to their final locations
and strengths. Click on the thumbnail to see a mpeg of the blobby head "morphing" from a sphere. (36k) |
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Modeling the Helicopter was not very
difficult. It is basically made by a combination of many
primitives (cylinder and cubes mainly) and then scaling,
rotating, and translating them into the proper places.
The tail rotor is made by just scaling the main prop and
moving it out to the tail. The animation was made by
rotating the props up to speed, and then the helicopter
lifts off, pitches forward, and then goes forward. A fair
amount of time was taken to ensure that it had a more
realistic motion (not a trivial task) Click on the thumbnail to see a mpeg of the helicopter spinning up and taking off. (95k) |
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The camera project was done to mainly
understand how cameras worked in Data Explorer. In this
project, what the camera sees is projected onto the TV
(which creates an interesting problem when it looks at
the TV). There is also a light source at the camera, that
moves with the camera. The scene is simply the three
earlier projects put on a table. As an aside, the scene
is also put on the back of the camera, kind of like a
view finder. This camera technique was eventually used in my final project so that I could see where the camera was, and what it was looking at. This helped make the motion in the final project more fluid. Click on the thumbnail to see a mpeg of the camera rotating around the table. (87k) |
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The technique behind making this
landscape is actually very simple. Start with a flat
surface with 4x4 verices. Vary each of these 16 points up
or down by a random amount. Then, interpolate some points
inbetween each of those. Then vary each of the points by
a smaller random amount. Then increase the number of
points, and keep going till your computer runs out of
memory. This gives major things like mountains and
valleys which come from the original larger variations,
and then the smaller variations give the land a more
realistic texture. Click on the thumbnail to see a larger view of it. (74k) |
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This is the final project that we did
where were supposed to incorporate many of the concepts
covered in the lesser initial projects. I spent a lot of
my time (the better part of a few weeks) on this project,
and I am really happy with how it turned out. Click on the Title Frame to go to the Project's Home Page |
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