Originally Posted by madman411
has anyone successfully made a stereoscopic dual-projector set up with LCD projectors? LCD is all i have at the moment and if i can avoid buying new DLP projectors that would be fantastic. i own a sanyo plv-80 and getting another one at a decent price won't be too much of an issue.
if anyone could shed light on the LCD polarization issue that would be great. i'm guessing that simply cutting up a pair of reald 3d glasses won't work in this case?
edit: if reald 3d glasses won't work, what about the glasses used for 3d film projection? i work as a projectionist and we have a couple theaters that use a special lens on a normal 35mm projector to project 3d movies. for every one traditional frame there are two. are these the same kind of glasses?
If you want to use LCD why don't you go with dichroic filters instead of polorizers? That is what Dolby 3D uses and you don't need a silver screen to do it. http://en.wikipedia.org/wiki/Dolby_3D
I have seen in another forum, iz3d I think, a user took apart a pair of dolby 3d glasses and used the lenses to filter each projector, then wearing a pair of glasses he was able to view the projected image. Since wavelength mulitplexing hasn't got anything to do with polorization it wouldn't matter if you used LCD or DLP.
As far as content and software goes that is easy. All you need is stereoscopic player and you can set it to play out as SBS on two outputs.
I have successfully ripped 3d blu-ray and created MKVs that have all the requirements to play perfectly in stereoscopic player.
I found some of the instructions here http://forum.doom9.org/showthread.php?t=155246
The important part is using x264 to recode the right eye. The 3d blu-rays store the left eye as the 2d movie, then they store the delta of the right eye image. Using an avsynth script with "H264StereoSource.dll" you can recreate the full right eye information as a separate file.
Once you have left.h264 and right.h264 you can use mkvMergeGUI and on the "Format specific options" tab you can set "stereoscopy left" and "stereoscopy right"
you then have an MKV file with the left and right streams that can be read by Stereoscopic player, and this is the cool part. Stereoscopic player can output to any kind of 3d display or configuration. You can even set it up as anaglyph.
I have been looking at Dual projector setups for a while. I think I will go dual DLP, (perhaps even 3d ready DLPs)
Then I can use dichrioc filters, polorizers or active shutter glasses. I'll have every quality 3d possibility and I can experiment with all of them and find the best one.
Right now I am working on ripping and compiling 3d content into MKV files. When I have the money to buy my equipment I will have a ton of content ready to go. I just got another 2TB drive for my media server. I already have over 80 HDDVD and Blu-ray rips on my server, that takes up 2TB. I rip them at full quality and just remux the result, no recoding.
more info about Stereoscopic player here, http://www.3dtv.at/Products/Player/Index_en.aspx
also I don't know if I'll need the IZ3D driver, i don't have a dualhead card right now, just a laptop. I know the IZ3D driver has SBS dual output mode but I think you just need that to make games work in 3d on dual projectors. anyway more info is here http://www.iz3d.com/
and that is also where I saw info on a dual dichroic setup.