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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).
-
-
-