<strong>Are there such things as 3d projectors? </strong><hr></blockquote>
It would technically be called a "Hologram". There are systems that can mimic a hologram using mirrors. Sega had a video game a while back that looked like you were controlling holographic characters. It wasn't a true hologram.
To the best of my knowledge, no holographic projectors exist in the consumer world. When I was studying Holography at MIT, we got to play around with the HoloVision research. They were able to display a single color hologram of a VW Beetle rotating in 360 degrees at about four frames per second. The feed for the 3D model of the VW Beetle was coming from a Silicon Graphics ONYX 2 Supercomputer.
It would technically be called a "Hologram". There are systems that can mimic a hologram using mirrors. Sega had a video game a while back that looked like you were controlling holographic characters. It wasn't a true hologram.
To the best of my knowledge, no holographic projectors exist in the consumer world. When I was studying Holography at MIT, we got to play around with the HoloVision research. They were able to display a single color hologram of a VW Beetle rotating in 360 degrees at about four frames per second. The feed for the 3D model of the VW Beetle was coming from a Silicon Graphics ONYX 2 Supercomputer.
We've a little ways to go... </strong><hr></blockquote>
Really that's quite interesting. Are there companies out there that could design you a "Hologram" of say a person like a foot tall that could stand on a desk and it would be possible for a person to walk around the desk and see no screen at any angle (as if the 1 foot tall projection were floating in mid air)? Any sites would be perfect! Thanks in advance.
Well, to do what you're describing isn't really a hologram. It was a trick designed for the stage a while ago. Called "Casper's Ghost" or something like that. Basically, the idea is that using mirrors underneath a flat surface you can project light upwards that gives the appearance of a three dimensional image.
I don't know much about how it works or the technology behind it. The HoloVision work at MIT uses a traditional Holography setup... including a calibrated laser, carefully placed mirrors, colimmating lenses, etceteras to shine the beam through the plate that is receiving the feed from the computer to display the 3D image.
The mirror trick thing could work, I just never really looked into it. When I asked the people at the Media Lab about the SEGA arcade game that used that technology back in the 80's, they wrote it off as being a hack and not a real holographic projection. And they're right, but I just didn't investigate it anymore. The stuff I was doing there was totally different anyway.
Yes, these do exist, they're called volumetric displays, and are usually quite small and very expensive, but, there are rumours that Apple computers will use this technology quite soon, and OpenGL already supports it.
[quote]Originally posted by SOMEONE PLEASE HELP ME:
<strong>Sorry about the screen name.
Yes, these do exist, they're called volumetric displays, and are usually quite small and very expensive, but, there are rumours that Apple computers will use this technology quite soon, and OpenGL already supports it.
Just search for volumetric displays on google.
Andrew</strong><hr></blockquote>
Really OpenGL supports it? Thats crazy. Thanks all for your help.
The Apple rumours have been in regards to Apple using Stereoscopic displays. Just shy of a year ago a company announced sterescopic LCD panels. Having seen them in person, they're nice.
Comments
<strong>Are there such things as 3d projectors?
It would technically be called a "Hologram". There are systems that can mimic a hologram using mirrors. Sega had a video game a while back that looked like you were controlling holographic characters. It wasn't a true hologram.
To the best of my knowledge, no holographic projectors exist in the consumer world. When I was studying Holography at MIT, we got to play around with the HoloVision research. They were able to display a single color hologram of a VW Beetle rotating in 360 degrees at about four frames per second. The feed for the 3D model of the VW Beetle was coming from a Silicon Graphics ONYX 2 Supercomputer.
We've a little ways to go...
<strong>
It would technically be called a "Hologram". There are systems that can mimic a hologram using mirrors. Sega had a video game a while back that looked like you were controlling holographic characters. It wasn't a true hologram.
To the best of my knowledge, no holographic projectors exist in the consumer world. When I was studying Holography at MIT, we got to play around with the HoloVision research. They were able to display a single color hologram of a VW Beetle rotating in 360 degrees at about four frames per second. The feed for the 3D model of the VW Beetle was coming from a Silicon Graphics ONYX 2 Supercomputer.
We've a little ways to go...
Really that's quite interesting. Are there companies out there that could design you a "Hologram" of say a person like a foot tall that could stand on a desk and it would be possible for a person to walk around the desk and see no screen at any angle (as if the 1 foot tall projection were floating in mid air)? Any sites would be perfect! Thanks in advance.
[ 02-23-2003: Message edited by: Mac_Man ]</p>
I don't know much about how it works or the technology behind it. The HoloVision work at MIT uses a traditional Holography setup... including a calibrated laser, carefully placed mirrors, colimmating lenses, etceteras to shine the beam through the plate that is receiving the feed from the computer to display the 3D image.
The mirror trick thing could work, I just never really looked into it. When I asked the people at the Media Lab about the SEGA arcade game that used that technology back in the 80's, they wrote it off as being a hack and not a real holographic projection. And they're right, but I just didn't investigate it anymore. The stuff I was doing there was totally different anyway.
Wish I could offer more help...
Yes, these do exist, they're called volumetric displays, and are usually quite small and very expensive, but, there are rumours that Apple computers will use this technology quite soon, and OpenGL already supports it.
Just search for volumetric displays on google.
Andrew
<strong>Sorry about the screen name.
Yes, these do exist, they're called volumetric displays, and are usually quite small and very expensive, but, there are rumours that Apple computers will use this technology quite soon, and OpenGL already supports it.
Just search for volumetric displays on google.
Andrew</strong><hr></blockquote>
Really OpenGL supports it? Thats crazy. Thanks all for your help.