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Flint -- even better if different light angles produced different shadow images. Then you could have the 3D object on a rotating platform and the shadow would change to show different 2D images.
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Julian Beever has done some interesting 3-D sidewalk drawings with chalk, like:
http://users.skynet.be/J.Beever/images/coke.jpg and http://users.skynet.be/J.Beever/images/sosie.jpg Here's another good one: http://users.skynet.be/J.Beever/images/batman.jpg Keep in mind that these are all 2D, and only look right from one angle. You can find more here. |
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This reminds me of the digital sundial (check out #8). |
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The closest thing to what I'm thinking, regarding multiple images cast and reproduced on a single, complex 3-D surface, and this is a gross over-simplification, but you know those billboards that change as you drive by? Like that, but, not to name the particular object, it's much more interesting than parallel, vertical louvers with angled facets.
To do what I'm talking about, you'd need something like a Tracer, which I do have, and which most notably a friend and I used to blow up a single eye from an india ink, cross-hatched illustration (he did) of a photograph of a model's face, up from about one inch to about ten feet across, then re-colored it with oil pastels, thus making a perfect photographic reproduction of a human eye that you can only see from at least twenty feet away. |
And what did it's shadow look like?
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To carry this idea to a really ridiculous level (because, why not?), I suppose you could cast the shadow of one 3-D object onto another 3-D object, and have the resulting image represent a third subject (appearing to be 2-D on the surface of the second 3-D object). Continuing to expand upon the idea of shapes and images projecting and changing upon the surface of one another, eventually you could build an Escher-esque funhouse where you wouldn't even be sure what you were looking at! This thread certainly opens up what you might even call a can of worms. Like, art worms.
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Seagulls, shadows, or whatever, we're all fortunate to be viewing this away from the stink of 6 month old garbage.:yelsick:
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. . . So, I sketched up some diagrams... ..the first two involving casting shadows on 2-D and then 3-D surfaces, while the 3-D surfaces retain their information... ..the third involving projected, visible light images, reproduced on 3-D surfaces, so that different images become visible depending on the angle: |
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