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Active vs. Passive 3D–which is better?

Active vs. Passive 3D–which is better?

I own (as of August 2011) the top end Samsung (active 3D) and top end LG (passive 3D) televisions. Just bought them both this Summer.

The Samsung’s active 3D glasses are state of the art. They use bluetooth and give a stunningly sharp 3D picture.

The LG came with several pair of passive 3D.

Here’s the verdict (and frankly, I can’t imagine any sane person coming to a different conclusion because it’s not a close call): The passive is better – by far.

Yes, the active is slightly sharper. But the fact is, right now anyway, active 3D means 60hz which means flicker. Watching something on active 3D glasses for a length of time is going to give most people a headache. It’s a great demo though.

By contrast, the passive 3D is comfortable.  It’s like watching 3D at the movies.

I don’t really find 3D very compelling anyway – in general. It is, however cool that both sets will convert 2D to 3D and do so quite well – remarkably well. So watching the occasional home movie on either one is nice.  The active 3D is sharper but gives you a headache. The passive is less sharp but comfortable. I’d prefer comfortable.

So there you go. If there’s a future for 3D glasses, and I’m not sure there is, it’s passive.

83,870 views 43 replies
Reply #26 Top

The only difference I see with HD is it's a brighter picture. Perhaps a bit more color and depth. I still have no use for a TV over 32" and the one I have now is smaller than that. Around here they charge an extra $40 for HD.

There was a report published on a site that I really should have bookmarked. The report said depending on how big the room the TV is in and where you sit to view it you may not see the benefits of HD. In my situation HD would not work according to that report. I'll have to look for that site.

Reply #27 Top

Are you sure it wasn't about the size .. cause I have heard about that...

Reply #28 Top

It was about just the distance from the TV if I recall. Be that as it may I'm happy with what I have.

Reply #29 Top

I really enjoy 3D and I dont understand why people dont like it (except for the 5% of people who get headaches from it or are unable to see the effect).

The immersion of a QUALITY 3D cinema is far better than 2D IMHO, it really adds whole new depth to the experience. And if I have to choose between bad effect with no glasses and quality effect with glasses, I choose the latter. I dont mind glasses if it enhances the experience so much, and there is no other comparable option.

Thats for movies. For games, its a no-brainer. 3D is definately way to go there and has great potential. 

 

As far as technologies go, both have their pros and cons, but there is one that beats them all - VR glasses with one display for each eye. There is no tradeoff between sharpness/ghosting and refresh rate with VR. Currently they are pricey, but once the price comes down,  this is what Im going to buy.

Reply #30 Top

Speaking as an industry expert here, I have to agree with the Frogboy on this. 8D

 

Passive 3d is definitely the way to go when watching movies, until (many years into the future) we don't need them. There're are very solid technical reasons why it is the technology used in movie theaters.  Also, the glasses are the same as used in RealD theaters so it's very cheap to have a lot of friends/family over to watch at home whereas that is just not affordable/practical with expensive active glasses.

I am less sure on playing games, since active glasses will be going to 120hz per eye (240hz for the tv) and higher, and that will induce even less eyestrain than the RealD solution (which is 24 frames per second per eye, showing each frame 3 times to reduce LCD fading/lag).  Theoretically that should give better one-to-one eye-hand coordination and therefore reduce brain fatigue and eyestrain.

But that's only a consideration for games, as currently all movies (except Imax) are being shot at 24 fps per eye.  So, Passive FTW.

 

3D isn't going anywhere.  All CGI animated movies (Pixar, etc.) are natively 3d by design.  We've just been unable to view their third dimension until now.  Expect all CGI anmated movies to be 3d from now on, period.

Similarly, now that the technology's difficulties are getting ironed out (i.e. brightness, sharpness, crappy conversions) more and more top drawer directors are turning to 3d from here on out.  Namely, James Cameron and now Ridley Scott will not be making any movies not in 3d anymore.

Hell, we can thank 3d for finally forcing Michael Bay to shoot action like it's a film not a commercial.  While it doesn't help his narrative weaknesses any, it sure does make his action sequences a helluva lot easier to follow.  And for that, we can be grateful.  8P

 

It's up to the buyer to beware, however, as there is a LOT of crap 3d out there...just as there are a lot of crap movies. 

 

 

Reply #31 Top

Quoting ShotmanMaslo, reply 29
I really enjoy 3D and I dont understand why people dont like it (except for the 5% of people who get headaches from it or are unable to see the effect).
End of ShotmanMaslo's quote

I suffer headaches from 3D. Count me as part of that 5% i guess. I think that number may be higher though.

Quoting Excalpius, reply 30
3D isn't going anywhere. All CGI animated movies (Pixar, etc.) are natively 3d by design. We've just been unable to view their third dimension until now. Expect all CGI anmated movies to be 3d from now on, period.
End of Excalpius's quote

That has yet to be seen. I think people will vote with their wallets. Overall I've heard 3D ticket sells are down.

Reply #32 Top

Quoting Excalpius, reply 30
Speaking as an industry expert here, I have to agree with the Frogboy on this. 8D
End of Excalpius's quote

I thought for a moment that you'll tell us about secret '8D' technology your company is working on;)

I'm not in the 3D tv much. Thank you guys for stating plainly which is better. All I could find  in the net were sponsored (this way or another) articles.

As for 3D movies. I think it's a nice addition if the movie is made for 3D. And I don't mean the technology but the whole camera work and directing. I was having a lots of fun watching Avatar but I was bored and annoyed what watching PotC4 "No sea battle in the first 3D movie about pirates? No "Patriot" like cannon balls, no braking masts or ramming ships. Instead I got nice little chase on the streets of London (?) Lovely.

 

As for HD - it is different. The people are ugly in HD.. all the freckles and moles and imperfections. Of course you need big screen to see it. It smaller ones it's just another crispy, sharp picture. And I think this is the way the technology is going. Resolution and FPS. AFAIR Peter Jackson wanted  to film Hobbit with 60 FPS. Resolution and FPS together delivers smooth and clear picture and I guess that's what it is all about. 

On the other hand. 2 major steps back in A/V - LCD screens and non HD digital television. They now still can't make LCD screen that have constant lighting on the whole surface. That's just preposterous! After all this years. And DTV? The standards of coding are awfull. This is something a computer users know as early DivX. Of course the advantage of saving frequency is unquestionable but the quality suffers.

Reply #33 Top

Quoting kona0197, reply 31
That has yet to be seen. I think people will vote with their wallets. Overall I've heard 3D ticket sells are down.
End of kona0197's quote

Not for animated movies.  Just for badly done live action ones.

PROMETHEUS is being shot in 3d as is AVATAR 2 & 3.  And there isn't a Pixar movie that isn't coming in 3d.  Etc.

Reply #34 Top

Quoting flymar, reply 32

 They now still can't make LCD screen that have constant lighting on the whole surface.
End of flymar's quote

OLED TVs (coming very soon) solve the true blacks issue since they are light emitting.  8)

Reply #35 Top

Badly done live action? What movies were bad?

Reply #36 Top

Quoting Excalpius, reply 34

OLED TVs (coming very soon) solve the true blacks issue since they are light emitting. 8)
End of Excalpius's quote

I was reading about OLED about 2,3 years ago and then they were also 'very soon':) True black isn't a problem for me. True black, true gray, true blue on every friggin pixel - this is the issue. In other words - I'll believe if I see one and to be precise - if I can afford one, put it in my apartment and watch it for about 6 months:)

Reply #37 Top

Truth? I'm kinda passive about the whole thing and comfortable with it.

It's all phony... a gimmick to sell something not yet ready. I'll wait for the holodeck.

Reply #38 Top

Quoting kona0197, reply 35
Badly done live action? What movies were bad?
End of kona0197's quote
I've heard that the new Conan movie's 3D was very poorly implemented.

Reply #39 Top

If I want 3D, I turn off the TV and watch LIfe instead. Anyone remember Viewmasters? 3D TV hasn't really advanced much past those and I outgrew my Fisher-Price toys years ago.

Reply #40 Top

Quoting Cruxador, reply 38

Quoting kona0197, reply 35Badly done live action? What movies were bad?I've heard that the new Conan movie's 3D was very poorly implemented.
End of Cruxador's quote

Yes, it was a terrible post conversion done in Romania by the same team that did the vfx...just to save money and get international kickbacks etc.

 

Reply #41 Top

Quoting Cruxador, reply 38

Quoting kona0197, reply 35Badly done live action? What movies were bad?I've heard that the new Conan movie's 3D was very poorly implemented.
End of Cruxador's quote

Everything I've seen so far this year has been pretty good, a few times where the 3D seemed pointless sure but nothing has made me go cockeyed since piranha 3D.  I haven't seen Conan yet though, Fright Night is my latest.  

Reply #42 Top

I really think the biggest problem with state of the art homecinema 3D is that the resolution is cut to the half. Additionally some user are really sensitive to so called motion- or cybersickness. For that people 3D isn't a good experience at all. There even is a problem if sometimes producers experiment too much with the virtual camera distance and you get a headache from that.

 

But when everything is done correctly I think its great. For sure some new UI concepts for gaming should be developed but if the content is 3D and you spend real efford in making it good there should be some benefit (I don't think just making it 3D will make it better I think that doesn't work). The problem is that 3D is much more complex so its really hard to make your product really good ;).

 

The question passive or active 3D I think for Home or better say non proffessional use passive is much better.

1. no heavy glasses

2. no problem with sync

3. glasses are really cheap

4. and if you plan to extend the 3D with motion capturing (like VR installations do) you don't have the problem that consumer stuff don't send out the sync for the IR tracking propperly :D.

 

I personally think the state of the art autostereoscopic displays like mentioned are really crape. They are only for one person not moving in front of the screen or you can watch with several people but have a really bad resolution. Unfortunatly I don't see good quality 3D without glasses in the near future but I would appreciate it.

Reply #43 Top

3D is great in the movies! and I can throw popcorn around and not have to pick up the mess :) :-"