fdecker
Mouseketeer
- Joined
- Oct 3, 2004
- Messages
- 248
It must be my anal side, but I hate to see misinformation printed. There are really only 3 kinds of 3d glasses that would be possible for making the lights 3 dimensional. Of these, only one is practical and cost effective for what Disney or anyone else could do and those are the cheap red/green glasses called "Anaglyphic Glasses". For these to work, Disney would have to, either using computer created patterns to copy from or very simple images, create light sculptures with red and green lights. This would create a pretty cool 3d effect, but I've never seen anyone do it. Each eye is blocked from seeing the color of the lens it is looking through, so a stereoscopic picture is created by having a blue picture and a red picture that combine in your brain to form a stereoscopic image. This only a monochromatic image with red and green tinge.
Disney DOES use "polorizing" glasses for their true 3d attactions however, to get full color 3d images on ride attractions and things like "Honey, I shrunk the Audience". You can find out more about these processes here:
http://www.3dglassesonline.com/how-do-3d-glasses-work/
There are also diffraction grating glasses that act like thousands of tiny prisms and can do rainbow pattern effects that also would be kind of cool, but again, that's not what they are doing.
The glasses at the Osborne lights use a holographic process that embeds a picture of their choosing (even a name or logo) into the plastic lenses. The pinpoint sources of light then activate the pattern and the focal point of this virtual image allows you see angels or snowflakes hovering in space while looking at the lights.
Fred
Disney DOES use "polorizing" glasses for their true 3d attactions however, to get full color 3d images on ride attractions and things like "Honey, I shrunk the Audience". You can find out more about these processes here:
http://www.3dglassesonline.com/how-do-3d-glasses-work/
There are also diffraction grating glasses that act like thousands of tiny prisms and can do rainbow pattern effects that also would be kind of cool, but again, that's not what they are doing.
The glasses at the Osborne lights use a holographic process that embeds a picture of their choosing (even a name or logo) into the plastic lenses. The pinpoint sources of light then activate the pattern and the focal point of this virtual image allows you see angels or snowflakes hovering in space while looking at the lights.
Fred

And Ted has a point, there is a lot of overlap between what you could call "3-d". I guess one distinction would be "3-d stereoscopic" vs. holographic. "Bug's Life", "Honey I shrunk the audience", etc, use polarizing lenses and 2 projected images to create a full-color 3d stereoscopic image, while the holographic glasses give a static floating image recreated when a point source of light is diffracted by what is called a "reflection hologram". It does have dimension since it is a hologram and recreates the wave pattern of the original monochromatic light bouncing off the target object, but it doesn't have anything to do with what you are looking *at* through the glasses.


