CSE 457

Introduction to Computer Graphics
1998 Fall Quarter

Project 3: Trace Artifacts

Please rank these artifacts submitted for the Trace project (10=highest, 1=lowest). The highest-ranking artifacts will be awarded some extra credit (to be determined).

You must enter your UW student number at the bottom of the form, and only votes from CSE 457 students and staff will be counted. If you vote more than once, only your last set of votes will be counted.

Untitled by W. Patrick Carey Project 3 artifact
Patrick Carey

Although the scence is the same bubble scene as provided, I wanted to show some of the features of our raytracing algorithm. I am using a green directional light with a white spot light on the side. This feature isn't seen as effectively as on simple scenes. However, the antialiasing feature really shows the effects on the straight edges of the polygons. They are much smoother than the original.
Untitled by Daniel Crawford
Untitled by Young Kim
Untitled by Konstantin Komissarchik Artifact of Konstantin Komissarchik

- Bubble is compiled with antialiasing option.
Untitled by Kurtis Chinn Hall of Mirrors
by Kurtis Chinn

This artifact basically uses 4 mirrors to create an effect of a hallway of mirrors lined up in a row. I placed 3 spheres along with a cylinder in the mirrors to project different views of the objects as they reflect around in the little box of mirrors i created. A high intense light is placed at one corner of the box to give the visual effect of the scene being faded to white.
Untitled by Sean McDaniel This is not the original image I wanted to submit for my artifact. I created a vrml image over the weekend and brought it in Monday to convert and trace. Despite the assistance of a TA, I was not able to get the converter to work with my vrml file and so ended up just tracing one of the provided out files so I could turn it in before class.

Sean McDaniel
"My Bubble" by Jay H. Byon
"Red Meets Blue" by Nathan Freier
Untitled by Rob Goree
"Shiny Balls" by Bibek Pandey
"Lamp" by Jeff Nichols I didn't have much time to work on this, so there's not much of anything special to
look at. It's a lamp!
"Haha" by Chris Fong
"Pikes" by Karlen Lie
"Balls 'n' Chess" by Keva M. Moskowitz Keva Moskowitz - Balls 'n' Chess

This image shows various features implemented in our raytracer.
Some of them to note include:

o Arbitrary indexes of refraction - The clear sphere in the center has a index
of refraction higher than the default.

o Background image and evironment mapping - A cloudy background was used in place of the
standard black background. Enviroment mapping is demonstrated as the clouds are
refracted through the clear shpere in the front.

o Procedural textures - This is demonstrated by the "marble" carved chess piece.
Untitled by Robert McCann Robert McCann
CSE 457
Proj. 3 Artifact

My artifact is nothing more than a trace of one of the sample scenes given for the project. I could not seem to get a .wrl to .out conversion (well, I did get one, but it is nowhere to be found). Anyhow, I just decided to save myself and turn in this, since the e-mail specifications didn't refute this possibility. Also, I am not worried about missing extra points or anything like that, but my previous two project artifacts have not shown up on the web. Any ideas about this? No biggie, just wondering.

-Robert McCann
Untitled by Yuen-Fai Lo
Untitled by Theodora Yeung
"Self Portrait" by Jeff Franklin
"Place Holder" by Amy Tam Our Ray Tracer has all the required elements, including
directional lighting and point lights, as well as reflection,
and refraction. The results are in the .bmp file included.

In addition, the raytracer has soft shadows, softw reflections
and antialiasing, all of which can be seen in the provided example,
except for antialiasing which was turned off to expediate the
rendering process.

I was planning on using my own .out file from my .wrl artifact.
However, when I tried to render it, for some reason the raytracer would
always end up hanging (ie: not responding). So I decide to use the
standard image.
Untitled by Peiwai Chiu Objects:

-- The bright object in the center acts as a star shining everything
in the space. It is totally transparent. The actual light is come
from three points light inside it.

-- Three spheres in the space receive light from different angle form
the light sources.

-- Some very small sphere act like stars in the behind.

-- On the top and bottom of the scene, there are two rectangle
surfaces extend to far into the scene. They give out some blue
diffused color.

"Pyramid" by Diane H. Phan
"Elgar, Nimrod" by Marc Kubischta there's not much to see here...
nothing particularly breathtaking really,
and the .out file is based on another .out file
can you tell?
hence the name - any music people out there?
"Bubbles" by Bradley Liu
Untitled by Seng Kong (Daniel) Yek
Untitled by Christopher Lee
Untitled by Robert Howard
"Moons Over My Hamee" by Chris Caywood
Untitled by Jake Russell
Untitled by Tammy Horn
"Duh" by Susan Shinoda
"DJ" by Nathan Moore
"BB" by Chiu Fai Ho Mine has glossy surface on the shadow and strong refractive index, so pipe is twisted more. Moreover, it only support spotlight. But it is hard to distinguish. The last feature is the antialiasing. The edge is smoother.
"Flying Stereo Hydra Nal Quasit" by Brett Shirley
Untitled by Kevin Zatloukal This picture demonstrates the Torrance-Sparrow lighting model. In this model, the color of a spectral highlight is a combination of the light color and the color of the object (the ratio of which is a function of the index of refraction). Whereas in the Phong model, the color of a spectral highlight is only determined by the color of the light. The color of the ears in this picture were changed to illustrate this effect.
"Approximate Math" by Ken (Wyvern) Aldinger TITLE: RayTracing: Approximate Math
RENDERER: RayTracer, v1.1.Blake/Jean (build 5)
RENDERER'S AUTHORS: Wyvern, Keva Moskowitz

Well, what can one say? :) The whole last few weeks have been spent in class talking
about models of illumination and raytracing in order to make things look "close to real"
but still be computed in finite time. And so, the idea for making an image about all this
"approximate math" just sorta screamed out as needing done.

So, choosing an abacus to represent math, and deliberately making sure things just weren't
quite right (anyone notice that the beads are sitting on little bars that seem to be just
floating in mid air?) and things flew together.

Yes, I had fun. ^_^

The title and my signature were added using Photoshop. No other post-render adjustments
were made. ;)

o SuperSampling (adaptive aspect turned off for final rendering)
o Glossy Reflections
o Spotlights and Directional Lights
o Soft Shadows
o Procedural Textures
o Background Image

Also included is a Single Image Random Dot Stereogram (SIRDS) of this thing for your viewing
pleasure. :) The view is slightly different because a SIRDS is generated from a parallel
rather than a perspective projection. Also, the image was converted to a lossless PNG file
rather than a lossy JPG file for accuracy. Alas, this means some web browsers will
not be able to view it; use a different graphics viewer, like IrfanView32. (And if you
want to print it, print at close to 72 DPI.)

"Ice Cream" by Leo Lai icecream.bmp

(1) jittered refraction on the glasses
(2) abitrary index of refraction
(3) bump mapping on spheres (icecream)
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