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The Main Imager Gallery

This is a compilation of some of the images (with artist's comments) that have been produced by members and associates of the Imager Computer Graphics Laboratory.

There is detailed information on optimally viewing and downloading these images available.

For the convenience of returning visitors, the Gallery is organized in reverse chronological order, so that new images will always appear at the start of the Web page.

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15) Jean-Luc Duprat and David Forsey : "Dragon" (acquired 4/12/96)

16) Jean-Luc Duprat and David Forsey : "Head" (acquired 4/12/96)

"FaceMaker is an interactive front-end to an hierarchical spline modeller called the dragon editor. This demo allows one to manipulate heads (human, dog, dragon and Haida mask) interactively by adjusting some predefined parameters."

You can try out FaceMaker for yourself.

Additional examples of this modeller at work are on display in The Dragon Wing.

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14) Joel DeYoung : "Microgeometry of a Red Velvet Surface" (acquired 1/12/96)

"The microgeometry was sampled by a virtual gonioreflectometer, which is a program that measures how light reflects off the surface from all possible angles. The program outputs a bidirectional reflectance distribution function, or BRDF, which can be used to generate images of velvet objects."

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13) Joel DeYoung : "Velvet Cloth Draped Over a Chair" (acquired 1/12/96)

"This was created using the BRDF derived from the velvet microgeometry. Using this technique, we can create arbitrarily complex BRDFs by modelling the surface microgeometry and then passing it to the virtual gonioreflectometer."

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12) Alain Fournier : "CAR (Computer Augmented Reality)" (acquired 10/4/95)

"Computer Augmented Reality is the set of techniques to merge real images (actually mostly video) and computer generated images. Our emphasis at Imager is mainly on the problems of common illumination. In this image there is, in addition to the real elements, a CG book on the table and a CG light responsible for the highlight on the wall. One can see both kinds of shadows, cast from the real light and the CG light."

Reference: Fournier, A., Gunawan, A. S. and Romanzin, C., "Common Illumination between Real and Computer Generated Scenes", in Proceedings of GI '93, Toronto, May 1993, pp. 254-262.

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11) Alain Fournier : "Filter" (acquired 10/4/95)

"This is the result of an exercise in local illumination models extracted from normal distribution functions, and expressed as multiple surfaces (that is surfaces which have more than one normal per point). This image attempts to simulate the effect of velvet. The cloth geometric model is courtesy of David Breen and Donald House."

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10) Alain Fournier : "Sea" (acquired 10/4/95)

"This is a frame of an animation produced by Bill Reeves (of Pixar) and Alain Fournier from an ocean wave model."

"Maybe soon there will be more frames :-)"

Reference: Fournier, A. and Reeves, W. T., "A Simple Model of Ocean Waves", Proceedings of Siggraph '86, published as Computer Graphics, 20, 4, (August 1986), 75-84.

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8 & 9) Kevin Coughlan and Ian Mitchell : Stills from "High Noon III" (acquired 9/22/95)

"This animation was inspired by the 1950's classic `High Noon' with Gary Cooper. Why beer bottles? Because they're rigid bodies with no moving parts. So there."

You can download and view the animation in the IRIS movie (with soundtrack, 11.2MB) format.

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7) Lifeng Wang , David Botta , Paul Chin , and Chih-An Chen : "Garden View" (acquired 9/20/95)

"This is a project to build and visualize a computerized simulation of Yuan Ming Gardens - the Chinese imperial summer palace, destroyed during the nineteenth century."

The Yuan Ming Gardens Project has its own set of Web pages.

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6) Paul Lalonde : "Escalation" (acquired 9/20/95)

"`Escalation' is a short I did for Jeff De Boer, a friend of mine who does amazing sculpture in assorted media. His trademark pieces are the suits of armour for mice and cats that he builds."

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5) John Buchanan : "Iced tea" (acquired 4/19/94)

"In this image we see a combination of bicubic patches used to illustrate the Chebyshev polynomial based ray tracing technique. 900 patches on the quilted tablecloth, 28 for the teapot, and 6 for the cube enclosing the pot. Not much more to say."

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4) Pierre Poulin : "Desk Top Scene" (acquired 3/27/94)

"This image features linear light sources (fluorescent light above the desk producing the soft shadows) and texture mapping (book covers, calendar, etc.)."

"It was rendered using a local raytracer in 6 hours on an IBM RS/6000 model 560 at a resolution of 1200x2000 pixels (original image)."

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3) Markus Tessmann : "Ol' Smelly" (acquired 11/19/93)

"This frame from a 30 second animation shows three characters pondering the fate of Ol' Smelly.. The cans are polygonal models, which were animated using free-form deformations."

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2) Rob Scharein : "I Think Knot" (acquired 11/19/93)

"Rendering of a mathematical knot using the Alias raytracer. The surface was created by KnotPlot, an application specifically designed for the construction, manipulation, and display of mathematical knots."

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1) John Buchanan and Alain Fournier : "Illusions of Grandeur" (acquired 11/19/93)

"This image illustrates the ray tracing of bicubic patches using a technique based on Chebyshev polynomials. It contains roughly 3000 bicubic patches and was rendered on an IBM RS/6000 workstation. (The image is actually two halves of two different images.)"

Last updated by Bob Lewis on 12 April, 1996.