Need help for dual projector 3d setup.

Oct 17, 2018
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I want to do a dual projector 3d setup. From what I have read is following things will be required.
1. Two DLP projector with 3d or without doesn't matter.
2. Polarizing filter. I will go with linear one.
3. Silver screen.
4. PC with stereoscopic player or any other software that split 3d video stream into two.
5. Graphic card with two video out.
6. And glasses compatible with filter.

Now my question is linear polariser comes in two angles. 0 to 90 and 45 to 135. Which angle to buy and how same should be placed in front projector i.e. polariser base side parallel projector base or polariser tilted to look like diamond in front of projector.
 

kanewolf

Judicious
Moderator
The glasses you use will determine the polarizer. You have to be able to see projector 1 with your left eye only and projector 2 with your right eye only. So the polarizers have to be set up to be 90 degrees out of phase with the polarization in the two lenses in the glasses.
 
Oct 17, 2018
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Just reiterated, what I said earlier, for better clarity.

I have found a seller who sells linear polarising filter and it compatible glasses in two angles.
1. 0 to 90 angle polariser filter with it's compatible glasses.
2. 45 to 135 angle polariser filter with its compatible lens.

I am unable to find a what difference the these angles make in picture or 3d quality or the way they will be installed. So if someone can enlighten me on same that will be really helpful.
 

kanewolf

Judicious
Moderator


It shouldn't change the quality. As long as the screen doesn't change the polarity. I think most commercial theaters use 45 and 135 because the human head won't be held perfectly level.
 
Oct 17, 2018
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@kanewolf though I have still not figured how reply to you in forum but I hope this reaches you.

What you said actually is in line with what I had observed. Sellers like awater3d other state 45 to 135 available and 0 to 90 on request only. So it makes me believe 45 to 135 is only hot selling and might work the best.