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babbage.txt
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1999-05-05
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TITLE: Babbage
NAME: Douglas Eichenberg
COUNTRY: USA
EMAIL: Douge@ppe.com
WEBPAGE: n/a
TOPIC: History
COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING
JPGFILE: babbage.jpg
RENDERER USED:
POVRay v3.1
TOOLS USED:
Moray v3.1
RENDER TIME:
27h 4m 47s
HARDWARE USED:
400 MHz PII/Windows NT/64Mb
IMAGE DESCRIPTION:
The British-born mathematician Charles
Babbage (1792-1871), a prolific and eccentric
inventor, is credited with the design for the first
digital computer. Called an "analytical engine," the
device stored data in columns of wheels, each wheel
being capable of being moved to one of 10 positions.
Each position thus corresponded to one decimal digit.
The machine was programmed by a series of punched
cards. By moving a lever forward and back numerical
problems could be computed in a cumulative manner by
the series of wheels.
He visualized his computer incorporating a
memory bank, comparing results, and printing out
required data. It was also to modify its own program
and process data accordingly. Babbage devoted the final
37 years of his life to its development.
In the end, he was embittered by what he felt
was a lack of recognition for the importance of his
work and disappointed by his failure to bring his
principles within sight of completion. The fact was
that he was attempting the impossible with the means at
his disposal. The concept and the principles behind
the "analytical engine," on the other hand, were
absolutely sound.
DESCRIPTION OF HOW THIS IMAGE WAS CREATED:
I used an (as yet) unregistered version of
Moray. The scene contains 2761 frame level objects,
6 area lights, and 4 point lights. The model of the
analytical engine is roughly 20 units wide by 40 units
long by 60 units high. The walls in the background,
although appearing to be only a few feet away, are
actually about 1500 units away. I originally put them
that far back because the shadows created by all the
lights were too distracting; later I went through and
assigned a fade distance to each light. The unseen
ceiling in the image is made of reflective aluminum,
and a pair of reflective bronze walls are placed
just behind the camera, parallel to the front and side
faces of the analytical engine (ie. opposite the visible
wooden walls); these three walls reflect some of the light
back into the scene, as well as causing subtle reflections
that help make the metal look more realistic. Radiosity
was left on for the rendering, which may have caused some
additional color changes. Also, there is a small amount
of iridescence in the bronze metal that the analytical
engine is made of. The table and the walls are made of
the same wood material, but only the table is reflective.
All in all, the toughest part was the lighting, which
took the same amount of time as creating the model
(about a month).