I was wondering if any1 ever tried making a polarized 3d movie with a home made dual projector. We could plug both projectors to a computer sending the movie on a silver screen at home... You would have to render it twice using 2 cameras...

A:M has a Stereo option in the render settings so it will do the 2 camera stuff for you in one pass. Anaglyph is just one option. It can also render the two views as separate files.






I wonder how you'd synch the displays of the two projectors.

well, depends if we're talking digital or film. if we're talking film, both projectors would need to be threaded up with the same amount of frames from the platter and the intermittent sprocket (next to impossible without mechanical help BTW, no idea how the old dual projector system used to work, I only use a single) and then both projectors would have to be started simultaneously. If it's digital, it should be easier, set up a digital cue in the film which would cue the synching of both projectors

I would have a single computer control both projectors (you know, it's like plugging 2 screens on a comp) and program something that will play both movies on 2 screens... but I would need to have them aiming at the exact same spot... I was just wondering if that was doable

The something that will play both movies on two screens would be the hard part unless you are quite into that sort of programming.

BTW, polarized projection requires a special screen to preserve the polarization. Flat white and glass bead screens won't work.

I think the aiming would be the least of your worries.

yeah, a silver screen is needed for sure, and as for lining them up, they don't line up perfectly if memory serves me correctly, but instead, you have two images which I think are actually located above each other as opposed to side to side (at least that's how the image is split with our digital projector at work)

http://www.visbox.com/vismini.html


http://www.studio3d.com/pages2/silver_screens.html

thanks for the info!

wow $15,000 for the set up! And extra glasses cost anywhere from $112.50 to $525.

Ouch!

You can do the "homebrew" method.
http://www.studio3d.com/pages/stereovideo.html

well the price is ridiculous... glasses are worth about 1$ each really... (or you get them for free at a cinema)

and for the polarisez part, just use another pair of glases in front of the projectors...

I think those $500 glasses are LCD shutter glasses. Still over-priced though.

I got an LCD shutter kit on ebay a while back for a dollar. It worked with the TV and came with some very bad movies, but at 60Hz the flicker was very noticeable. I never tried burning an A:M 3D animation to DVD to use on it however.

I had a polarized stereo setup for a while but it needed a pretty shiny screen to work, really bad hot spot and still not a very good stereo effect. With a standard white screen all polarization was lost.

I guess the advantage of an LCD shutter system would be that you can use any screen, even a wall. Glass bead might be ideal to counteract the light lost in the glasses.

http://www.zalman.co.kr/eng/product/Product_read.asp?Idx=219

last year they went for $700, and now they are under $300

Looks like 3D stereo monitor is affordable. These works with the cheap polarize glasses.

I didn't know the price drop this much, I know what I'll be saving my money for.

I real good compositor for stereo vision is sony studio pro version 9, if you wanted to make a video for the movie theater for commercial in 3D!