[cyberhaunt]

Has anyone tried to make a large scale version of a 3D hologram like this video?
http://youtu.be/9t0cOYvOy4M

 

[The Halloween Lady]

Wow that is really cool!!!

 

[Chewbacca]

Very cool effect. It's basically the same effect as a Peppers ghost but it uses 4 surfaces witch reflect four simultaneous images.

 

[annamarykahn]

that is kewl ... at least, since i haven't tried it, and from looking at the video, it looks like it would be kewl

now, how do we make a holographic video so that we can make something that'll make a, say 6' tall image?

i've found some images on you tube and it looks like the same image is located at the corners of an imaginary square.

or are there differences for each image?

if the images are the same, then this should be a "relatively easy" prop to make ... project the image onto a 45degree mirror so that it projects up onto the plexiglass ... or is there another easier way?

amk

 

[Icepick]

Don't project it onto a mirror. That will shoot the image through the glass. Project the image onto a flat screen. I have seen a couple YouTube vids with large scale versions.

 

[annamarykahn]

icepick,

yeah, you're probably correct unless you used, say a shower curtain under the plexi

looks like for large scale, at least the video that i saw, they use 4 projectors ... 1 for each side of the plexi ... i'd imagine that getting the 4 projectors perfectly aligned is a huge pita

i'm guessing that they're projecting down?

i wonder what this video used to project onto over the glass? this has me thinking that wouldn't the image that is being seen is the lcd image in the projector ... so projecting onto a mirror and up would work ... ? as it appears that they're just projecting onto the plexi ? ...

now i'm confused ... lol

if i had some time i'd perform a little experiment ... does pepper's ghost work if you use a mirror? maybe someone's already tried this???

amk

 

[J-Man]

While this is pretty cool, not sure this concept has much use for haunters. To get a large hologram you would need a very large glass or plexiglass pyramid along with 4 projectors in a very complicated set up. I think the standard projection techniques that most of use do a very good job of creating the illusions most of us are after.

 

[The Halloween Lady]

While this is pretty cool, not sure this concept has much use for haunters. To get a large hologram you would need a very large glass or plexiglass pyramid along with 4 projectors in a very complicated set up. I think the standard projection techniques that most of use do a very good job of creating the illusions most of us are after.

I don't know about that, I thought of tons of possibilities for this and immediately went in search of how to 's and larger applications. I totally agree with J-Man that standard projection techniques are great! (In fact I typically use some form of them almost every year.) But one of the things I love so much about Halloween is that it offers limitless creativity and endless possibilities. I love the constant pushing of artistic boundaries, and am always amazed by the ingenious things haunters come up. Sadly I am technologically challenged so I will be probably be sticking to the standard projection options. So while this probably won't make it into my wheelhouse, I can definitely imagine some really cool ideas for it and would love to see someone utilize it.

 

[Icepick]

It's entirely possible to use this effect in a haunt. The issue is size of the setup to get a full size (in this case we'll say a person) image. It will take up an awful lot of real estate. The hardest part is lining up the four videos so they make a cohesive image when walking around the illusion. What the above (or below depending on how you view the forums) image of the full size doesn't show, are the corners.

 

[bayoubrigh]

Instead of going very large what about something the size of a lantern that holds a "spirit" inside. You could probably use 4 CD size cases with a kindle or something underneath playing the video with a frame built around it. Or go the Ghostbusters route and use a see-through Ghost Trap. It has possibilities.

 

[TheHalloweenGuru]

Seems like too much work and materials for the effect you're getting

 

[DaveintheGrave]

I think the best way to use that idea would be to make a bigger "pyramid" out plexiglass and mount it on top of a flatscreen TV.

 

[cyberhaunt]

I wonder if it would be possible to set up a video with 4 identical sides like the sample shown earlier, then use one projector either above or below to project on to a Plexiglas pyramid. Would the image be to distorted?

 

[Icepick]

I wonder if it would be possible to set up a video with 4 identical sides like the sample shown earlier, then use one projector either above or below to project on to a Plexiglas pyramid. Would the image be to distorted?

Project onto a screen placed above the glass pyramid, and it would work. It would have to be a material that would be suitable for rear projection.