3D viewing methods:
Use of a standard
pair of eyes
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3D viewing methods: |
The first tool available is the absence of tool!
C'est à dire l'usage de notre équipement de base de vision stéréoscopique : Nos deux yeux et notre cerveau qui traduit la vision de deux images en volume. Je me permets une petite diversion philosophique. This is to say the use of our stereoscopic viewing base equipment: Our two eyes and our brain to traduce the viewing of two images in volume. I stop for a kind of small philosophy asset. Mother Nature gave to all animals at least a pair of eyes with two king of disposition:
- Side by side with parallel axis. This is the way human eyes are set and more generally predators. This is to say living beings able to locate precisely in space a moving object and able to catch it. In the Nature, that is evidently eating that same object, witch make this character a must for predators. Human beings found a lot more applications to that ability such as ball games,...
-The more unlucky, but also more tasty, animals, such as herbivores have generally two eyes offering a vision more panoramic than stereoscopic. For them, it's better to be vigilant than to see the third dimension.
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Usual space viewing: Maybe it seems strange, but the more simple way to reproduce an object or a person in 3 dimensions is to realise a copy in form of sculpture, moulding, or scale model. It as old as the world, but still works well! Even the Nature try it copying its own creation as fossils. That method is not very exiting but provides a genuine 3D effect. It is possible to paint the artwork of whatever manner to reproduce the model colours. Several people, blind included can enjoy the volume from any point of view at the same time. |
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Holograms: This is a very technique and quite modern to do the same thing as sculpture. The main difference is that, in spite of having a real, you get a virtual volume to be seen inside a paper sheet or through a transparent film. The 3D effect is incredible, you can change the point of view. Nevertheless, colour reproduction is not possible. |
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Lenticular lens: The printing of alternate slices of both views is seen through a network of thin hemi-cylindrical lenses. Each eyes just sees what it should see. The 3D effect is quite excellent (if the shooting is good, of course !), reproduction of colours is as good as any paper print. The effect is to be seen from a determined point and only by one person at a time. A better version use more than two images, not being stereoscopic, and provide better viewing comfort. Some computer screens, parallax-barrier based and seem quite interesting (and also kind of expensive!). |
Main menu 3D viewing methods menu
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