| Author | Message | ||
     Anonymous Rating: |
$3500 is not cheap. do you need a spicial silverized screen? thats another $1500+ thats $5000. i will wait to see what In-Three, X3D,Real3 have comming in 3d HD in the near future. | ||
| M.H. Rating: N/A |
Anonymus: You do not need any special silver screen. You can project in 3D directly from your laptop on a white wall if you wish ... It is active projection, not passive polarized projection. In addition most of the projector accesories are standard - including e.g. bulb . montages and other accesories. | ||
| Christoph Bungert (Admin) Rating: N/A |
### $3500 is not cheap The only real alternative to this projector I know of are the Barco and Christie 3-chip-DLP models and they come at a real 'pros-only' price. On the other hand the stereo-modification raises the cost of this projector maybe 100-200% over the standard-model it's based on. These are 'economics of scale'. If Texas Instruments would make a 120Hz mode standard the extra-cost would be almost NIL. I think one day this will become standard - also for 2D - since there are many gamers and professional users who want high frame rates. Christoph | ||
| Neil Rating: N/A |
Well, there is at least one thing we agree on, Christoph | ||
| Michal Husak Rating: N/A |
Offical press relese related to the projector is on this link: http://www.depthq.com/pdf/Lightspeed%20Design%20Announces%20New%20Stereoscopic%203D%20Projector.pdf Informations about the projector availability: Lightspeed Design, Inc. http://www.DepthQ.com is the "World Wide" exclusive distributor of InFocus DepthQ™ 3D projectors. GALI-3D s.r.o. (http://www.gali-3d.com) has been authorized by Lightspeed Design to resell the InFocus DepthQ™ projector as a nonexclusive dealer for sale in the Czech Republic and other locations in Europe. GALI-3D had founded discussing board related to the projector future discussion as well: http://forum.gali-3d.com/viewtopic.php?t=8 | ||
| Anonymous Rating: N/A |
It looks just like my X1. All the specs are the same as the X1. How are they able to get 120Hz? Are they using two DLP chips or is there some other hardware in there? I've had my X1 opened up and there doesn't seem like there's enough room to put anything else in there. Anyone know how it's done? john | ||
| M.H. Rating: N/A |
Ther are a lot if diferences in comparison with X1. E.g. ANSI , X1 has 1100 ANSI, InFocus DepthQ has 1600 ANSI ... | ||
| Peter Wimmer Rating: N/A |
John, it's very obvious how it was done: They modified the firmware. I guess the hardware is identical to the InFocus X2. Peter | ||
| Christoph Bungert (Admin) Rating: N/A |
I also have the impression the X2 was used as a base. Same looks, same specs. However I don't think it's just the firmware. They must have modified the electronics too. Everything compared to the X2 has to be double-speed. Signal processing, color-wheel, DLP, memory, interfaces. Plus the sync must always be accurate. It's an X2x2 so to speak. If it was just the firmware it would be a miracle and a scandal, since the DepthQ comes for more than 3 times the street price of the X2. Christoph | ||
| Peter Wimmer Rating: N/A |
Maybe they did small hardware changes on the color wheel to bring it in phase with the input signal. If they had developed totaly new hardware, it would be much more expensive. My guess is that the hardware is identical. | ||
| Anonymous Rating: N/A |
Maybe they had added more small pixies to write more pixels in ths same time. | ||
| Peter Wimmer Rating: N/A |
>Maybe they had added more small pixies to write more pixels in ths same time. What does this mean? | ||
| Anonymous Rating: N/A |
Find in an English dictionary what is it an pixie :-) | ||
| Anonymous Rating: N/A |
"""Maybe they had added more small pixies to write more pixels in ths same time. """ in other words.. they used magic ;) | ||
| Anonymous Rating: N/A |
wouldnt it be a better deal just buying two x1/x2 projectors? it'd be under $2000 plus much brighter picture and you could use passive glasses with no flicker.. sure the setup would be more complicated but for the price.. especially if you are going to set it and forget it. I dont think the depthQ that big of a deal personally... maybe if it was higher res and built had builtin IR transmitter for glasses. Then they could make a rear projection HDTV with the same tech and someone could produce a 3D ready DVD player to go with it... yeah.. Im dreaming..  Brandon | ||
| Anonymous Rating: N/A |
I think your right Brandon. For me the cost would just be another X1, polorizing filters and some glasses. I was going to wait for the Emagin HMD but I haven't heard anything about that in months. I really like the X1 with shutter glasses but may try passive. If I don't like it I can always sell one of the projectors. John | ||
| Anonymous Rating: N/A |
I think the main advantage of a depthQ projector would be picture quality. All of the 3D video formats have a disadvantage...anaglyph looks like crap on the color no matter what. Polarized is good but even it doesn't produce a 100% perfect picture. The polarizing filters do affect the image and people do get headaches with it, same as anaglyph. Field-sequential or shutter-glasses suffer from flicker at 50/60hz, BUT at 120hz as the depthQ does, you won't notice the flicker. If polarization doesn't bother you, yes, it would still be cheaper, but I'd bet a 120 hz picture would look better than a polarized one. | ||
| Christoph Bungert (Admin) Rating: N/A |
Backdraws of polarization method: ghosting (!!!), more equipment to carry, much more difficult setup, dual-head-VGA and driver required (how many notebooks do have dual-head and nVidia chipset?), non-depolarizing-screen required (expensive!). Get real, with the DepthQ you just carry one projector, notebook, some wireless glasses and you can show (presumably) perfect stereo on any white wall. And it's not much more expensive. Once you have all the components together for polarization, including filters and the special screen you're almost at the same level. And in the worst case when you have to use a certain soft- and hardware where dual-head isn't available, you'll need a hardware-VGA-de-multiplexer and that's gonna be expensive. Anyway I hate polarization. I hate most IMAX3D theatres, only the Sony-theatres with shutterglasses are good. We have to get rid of the ghosting damnit. I laid down all the arguments already back in 2003. http://www.stereo3d.com/dlppleading.htm ###small hardware changes on the color wheel to bring it in phase with the input signal.### It's not just the sync. As I said, everything has to be double-speed. Christoph | ||
| Christoph Bungert (Admin) Rating: N/A |
http://www.projectorcentral.com/infocus_x2.htm Checked some details on the X2. I must admit the X2 already has a double speed 120cps color wheel, but that's not too much of a surprise, since this is quite common now. I assume if you feed a 120Hz VGA-signal into the X2 it reduces the framerate to 60 fps and sends these frames to the DLP-unit, which shows 480 monochrome images per second - 4 colors x 120 rotations. Question is if the color wheel in the DepthQ is also double-speed or quad-speed already. I guess it's still double only. I'm not able to tell what exactly can be done in firmware and what requires hardware modifications. When Peter first mentioned 'firmware' I thought of the projector-firmware, but we have to distinguish between the projector-firmware (which can be updated by the user or the service) and the DLP-firmware. You know my position, TI should make the 120Hz mode a standard, this would also be welcomed for some 2D-applications. So the price-difference would vanish. Christoph | ||
| Anonymous Rating: N/A |
dosn't or didn't, VREX make single lens 3d stereoscopic polorized projection system?......is INFOCUS using there technology??? | ||
| Christoph Bungert (Admin) Rating: N/A |
No, the InFocus DepthQ has nothing to do with polarization. Christoph | ||
| Anonymous Rating: N/A |
This is all great news! Only, the light transmission of the projector seems to be very low for my apllication. I am a teacher having class rooms with up to 30 persons. I make use of passive 3D projection to give my students the chance to learn all about 3D content production. Currently I make use two Christie LX32 LCD projectors. After reading your comments here in the board I exchanged our old Dalite screen with the SF-Silver 3D screen material from Silverfabric. In opposite to our old Dalite screen I made the experience that image brightness was substancially increased. BTW, I have nearly no noticable ghosting at all and nobody talks about eye straine problems or similar issues! I have learned that ghosting depends on all devices and the the screen material is the most critical factor. Now, concerning image brigthness, am I right if I guess that a silver screen will also help with your active 3D projector? I understand that for active 3D no silver screen needs to be applied. But I guess it will help for a high image contrast and a bightness gain? Am I wrong with this guess? Concerning the new active 3D DLP projector where can I get a demo? I am located in Germany. How's about the support? Since I have no experience with active 3D and I will need some support during the installation, a good support will be essential for our buying decision. It would be important for us that your supplier has a good knowledge about software as well as hardware. Formerly we made experiences with dealers that do not have knowhow about both subjects. Actually we had to take two suppliers and was charged twice for the services of each. Thanks in advance | ||
| M.H. Rating: N/A |
Anonymous: High gain screen can help with any projection including the active stereoscopic one ... And it must not be exactly silver-non depolarization screen. Da-Lite produce e.g. materials with high-gain but depolarizing a lot. During the active projection a lot of light is lost in the shuterglasses (during passive light it is lost in the polarization filter as well). So high screen gain is always a benefit... The projector is not targeted to very big audience ... For 30 person you will do better job with your passive setup ... When you have few persons and you require portable presentation without ghosting - InFocus DepthQ is better. According demo and support. GALI-3D company (www.gali-3d.com) has been authorized for re-seling in EU area. We had got the authorization because we have several years of experience in stereoscopic software and HW development (e.g. with developing software code used now by IMAX and Disney people). If you have serious interest contact me directly - I will be able during 2-3 weeks give you a visit and arrange a demonstration. | ||
| Anonymous Rating: N/A |
Dear M.H, Does that mean that our recently bought Silverfabric 3D screen will work with your active DLP projector? Or would you recommend to switch to the low end Dalite stuff for any reason? Concerning your proposal to do the demo yourself does that mean there will be no German supplier for the system? Please don't understand me wrong. I will be happy to meet you in person but the support and a local person to speak to is of major importance for us. We made too bad experiences with companies cooking their own soups. Developing companies are good in support but strange in sales and delivery. Vice versa with comanies that only trade the hardware. They sell fast at good prices but don't know what they sell. What is your answer? | ||
| M.H. Rating: N/A |
Anonymous: I am using Silver Fabric Saphir 3D screen primary with our company active projection setup based on 2x2400 ANSI projectors. This setup is targeted for middle size presentations for 40 people or so. We had made such projections several times - e.g. during an international Meeting of Structural biologists ... I do not suggest to switch to low and screens - high gain is always an advantage for both passive and active projection. With a 2.5 gain screen you can make from a 1600 ANSI an 4000 ANSI machine equivalent. And you really need this, because the active projection makes from 4000 ANSI result a 1000 ANSI one back again. But the projection will be directional (low intensity for people not exactly before the screen... According my proposal - I do not have a exclusivity so Ligtspeed can decide to authorize other dealer for Germany and they will probably do this during the time. I have just get the authorization as the first one - because Ligtspeed believe I have the qualification (I was participating in the device specification forming, testing and support software development). My second job is teaching computer graphic on a University and developing scientific stereo-visualization codes. | ||
| M.H. Rating: N/A |
P.S. If you do still not belive I am not ony an HW reseler, give me your E-mail please. I will E-mail you an collection of scientific articles related to stereosopic usage published by my. One of them is availabe for downlaod on this link: http://www.depthq.com/pdf/Lightspeed%20-DepthQ-%20The%20Science%20behind%20DepthQ%20HD%20Media%20Server%20as%20presented%20SPIE%201-19-2004.pdf Other references to GALI-3D projects from the past are on this link: http://www.gali-3d.com/en/reference/reference.php | ||
| Anonymous Rating: N/A |
M.H., How about InFocus™ DepthQ™ Stereoscopic Projector with DMD 1280x720 ? | ||
| Anonymous Rating: N/A |
M.H, how much will the projector cost in Europe? The price will for sure be higher. Regards, Sam | ||
| M.H. Rating: N/A |
Sam: The price in EU will be higher from following reasons: - 14% EU tax on video-projection devices - USA->EU transportation cost and transport insurance - extended warranty required in EU area (USA 14 months) , EU require usually 2 years - local V.A.T. depending on target EU country We did not still finished final calculation, but it looks like the price will be according the factors mentioned above close to 3450 EURO without V.A.T. . Now you understand why I was a bit skeptical when our country (Czech Republic) entered EU ;-). | ||
| Christoph Bungert (Admin) Rating: N/A |
###- 14% EU tax on video-projection devices Is that tax or customs? Christoph | ||
| M.H. Rating: N/A |
It is customs duty. According direction of ES commison 1810/2004 from 7.9.2004, See Class XVI of products ... | ||
| Anonymous Rating: N/A |
What is the difference between Page Flipping and Field Sequential (interlaced)? I understand this projector only does page flipping? Also what specific 3D glasses system can be used? | ||
| M.H. Rating: N/A |
Anonymous: Field Sequenctial (iterlaced) name is usualy used in combination with stereoscopic-video storage. The image is visualised on TV as half frames at 60 Hz or 50 Hz frequence. One image resolution correponds to 1/2 of the TV resolution. In the past the similar system was used with older PC monitors. Page flipping on the other hand does not reduce the quality of the output by reducing the resolution to 1/2. On the screen are fliped full resolution images placed in all pixels (not in odd or even one lines only as in the interlaced case). When you have data in PC you can produce from e.g. interlaced video a full resolution page flipping output (but the quality will be reduced by the lack of information in the source video). PC games with nVidia drivers or proffesioal stereoscopic programs produce on the output page-flipping signal. Page-flipping could be probably coled frame-sequential to use compatible terminology fo field-sequenctial (interlaced). | ||
| Christoph Bungert (Admin) Rating: N/A |
I would expect the DepthQ to work with page-flipping, interlace, sync-doubling and line-blanking, as long as the resulting VGA-signal is 120Hz and the resolution is within the limits of the signal-processor. It depends if the projector sees the two fields (half-frames) as 1 or 2 full-frames. However it's difficult to find a VGA-card and driver which still offers interlace nowadays. Christoph | ||
| M.H. Rating: N/A |
InFocuse DepthQ supports a lot of different input resolutions and frequences outside the granted and well teste one. I wil make a list of non-offcialy supported modes soon and make it available .... | ||
| clyde Rating: N/A |
ok .. got that finally! and what is sync doubling and line blanking actually? also whats Blue line and white line code? Thanks Clyde | ||
| M.H. Rating: N/A |
Clyde: - sync doubling is a method how to create stero on graphic cards without stereo supoprt. You add to 800x600 output at 60 Hz an addtional sync pulse -> you will have 400x600 output at 120 Hz in stereo - line blanking is again a method how to produce stereo out from a non-stereo card. Hidding odd or even lines from the image creates from 800x600 output at 120 hz 400x600 output at 120 Hz - blue line code and white line code: methods how to tell the galsses witch eye is right and left (othervise this must be set manualy wiht a reisk of eye mismatch) Study the ilustrative materials made by Christoph on this link for more details : http://www.stereo3d.com/formats.htm | ||
| PiXeL Rating: N/A |
Now we only need to wait 6-9 months for the price to come down. I have been using an X2 for a while now and the 3D is superb at 75HZ refresh. The only way to get TI's attention and show support for the technology is to buy one. If you don't, then don't complain when you don't see any future models with higher resolution and lower price point. Simple economics. Companies focus attention and development resources where the money is. PiXeL | ||
| itsikw Rating: N/A |
What is X2? Is it Infocus X2? | ||
| Anonymous Rating: N/A |
what shutter glasses are you using for your large presentations? Whose emitter? crystal eyes? | ||
| M.H. Rating: N/A |
itiskw: X2 = InFocus X2 Anonymous: It is possible to use any model when you arange the IR emmiters in a proper way ... We use both Stereographics and MacNaughton products. E-dimensional will release a hi-power emmiter soon as well ... | ||
| Matt Rating: N/A |
So has anyone purchased or tested the DepthQ? The problem I had on my X1 is in order to eliminate ghosting in stereo I had to switch to 1024x768 in native mode but the picture, during movies, suffered from severe cropping and apparent interlaced scan lines (obviously with page-flipping support that will be history). Will this be the same story with the DepthQ as far as cropping goes or will movies be able to be played back uncropped with zero ghosting? If so, I'm sold. | ||
| Georges Naves Rating: N/A |
Hello, $3500 for DEPTHQ is not cheap .It may be of interest to know that a french company called TRIVISION,owned by JM Hénault, sells a similar product (DLP modified for 3D projection at high refresh rates ) for € 1800 (plus taxes) .I have not personaly tested it . I know tha standard DLP projectors cannot be used with PC shutterglasses to watch 3D videos at a high refresh rate,as the projected picture is out of sync with the input .However,some of them have a RGB sub 15 pin output .Is this outpur in sync whis the projected image,and,if so,coulb it be used to drive the shutterglasses instead of using the PC output ? Has anybody tried it ? Georges | ||
| M.H. Rating: N/A |
Georges: I realy doubt anybody without direct cooperation with the projector and DLP chipset manufacturer have a chance to develop something similar. My feeling is based on the information from the enginers working on the project. | ||
| M.H. Rating: N/A |
Georges: Do you mean this company - http://www.trivision3d.com/ ? From the www is does not look promissing ... | ||
| Anonymous Rating: N/A |
Why i need this thing , if two X2 will make a better stereo picture in 1024x768 for $2000 only ? | ||
| Georges Naves Rating: N/A |
To MH , The site is not really developed . However,TRIVISION has been around for a long time and JM Hénault is a well respected member of Stereo Club de France (which does not mean the company has any business links with the club ) I bought several oroducts from Trivision ,to my satisfaction .Among others,Trivision is an official distributor of D TV (M.Starks 'company ) Georges | ||
| Christoph Bungert (Admin) Rating: N/A |
###if two X2 will make a better stereo picture ### Better picture? How? Christoph | ||
| Anonymous Rating: N/A |
About one year a nvidia driver can be also a stereo demultiplexer, so a dual head board is what you need to make a passive stereo. | ||
| Christoph Bungert (Admin) Rating: N/A |
But active stereo in this case should give a better picture than passive. That's the whole point of the DepthQ - plus more convenience. Christoph | ||
| Anonymous Rating: N/A |
Not sure, the main point of passive projection is a good „silver“ screen, it cost money but it make result. I thing it is better as a colour-wheel-synchronisation ghosting. But all what I sad is “In My Human Opinion” ;)) Slava | ||
| Christoph Bungert (Admin) Rating: N/A |
I saw very good silver-screen projections, better than polarized IMAX-3D, but the ghosting seems still stronger than on active solutions, such as IMAX with shutterglasses. The DepthQ should not have colour-wheel-synchronisation ghosting, since that would qualify as a defect in design. Christoph | ||
| M.H. Rating: N/A |
InFocus DepthQ realy does not have any colour-wheel-synchronisation ghosting. In addtion by proper adjustment of synchronization pulses in nVidia drivers, it is possible to achive precise start of given LCD glasses shutering (needs to be 4x time more precise than for CRT) ... But as it was discused on 3DTV Yaho board , there will still exist a source of ghosting - not 100% efficent work of shuterglasses. Exact tests made by Andrew Woods shows horrible big diferences in diferent shutegrlasses quality (efficency, color deformations). Good shuterglasses is a key factor. | ||
| Christoph Bungert (Admin) Rating: N/A |
Michal, what do you mean by 'adjustment of synchronization pulses in nVidia drivers'? BTW in the past I tried to find differences between various shutterglasses, like $10 models vs. $1000 models. I could hardly find any, because the ghosting of the CRT is so strong it covers the differences between the shutters. With ghost-free displays, such as film, DLP and later maybe LED/OLED I'll have to reevaluate all my glasses and update my reviews and Top20 chart. Christoph | ||
| M.H. Rating: N/A |
My notice is related to the "ScreenResolutin&RefreshRate" nVidia control panel and its "AdvancedTimming" button ... We had found how precisely adjust by modifing of values on the mentioned control panel the time when the glasses get activation pulse. I will ask the Lightspeed technics for more details and let you know exact HOWTO ... According LCD glasses quality ... You shoul have a look on following article: http://www.curtin.edu.au/cmst/publicat/2002-09.pdf From the article you will see following: 1) There are horrible big differences in shuteglasses quality 2) The shuterglasses influence to the ghosting is unfortunately not neglible - especaily when you have a low-quality one .... | ||
| Anonymous Rating: N/A |
2 Christoph: I have another experience, but it was with the standard edition of X2. Probably Depth-Q makes a brilliant quality picture, but if you prefer an active stereo then with two X2 you can do it also – in this case, sure, the result can be compared with the Depth-Q output and who will a winner an opened question is ... 2 M.H. > Good shuterglasses is a key factor it is true | ||
| M.H. Rating: N/A |
Anonymous: Active stero with 2x X2 ? Can you, please, tell me how this works ? | ||
| Anonymous Rating: N/A |
2 Anonymous: ASUS delux board can do it bacause it has separated stereo-sync output | ||
| M.H. Rating: N/A |
Anonymous: Sorry, I still can not catch what do you suggest to do .... Can you, please, exactly describe how do you want to do active projection based on 2 projectors not capable to work at high refresh rate ? | ||
| Christoph Bungert (Admin) Rating: N/A |
###We had found how precisely adjust by modifing of values on the mentioned control panel the time when the glasses get activation pulse.### Michal, are you talking about the DCC-trigger or the VSync. I thought you're recommending professional glasses, like NuVision or StereoGraphics for the DepthQ. These glasses don't look for the DCC, but the VSync. Thank you Christoph | ||
| M.H. Rating: N/A |
Christoph: Profesional galsses can look for DCC as well (they could be connected by the help of pass thrugh VGA dongle) or they use DIN-3 signal with similar timing mechanizm as DCC signal. The DCC signal is VSync timing dependent as well ... So modifing the nVidia timing constants modify any sort of galsses trigeting ... I was not doing this experiments personaly (for synch with CRT it is not neccesary to have such precise timming). But for the use with InFocus DepthQ this adjutment is critical ... I will request from Lightpseed technic more detail and let you know ... | ||
| M.H. Rating: N/A |
It works following: by adjsuting the front and back porch and sync width, you can give the glasses more or less time to activate (becouse you triger the projector or monitor more later or early). I will publish proper setting for differen shuterglasses + output resoutions after some more testing (timming will be InFocus DepthQ specific) ... | ||
| M.H. Rating: N/A |
Emmiter range / glasses senitivity ? I have a question to all. Can you, please, send me your expereinces with the glasses distance from IR emmiter in witch are the glasses still responding ? I had already made some test myself, but I am not sure the results are representative ... | ||
| clyde Rating: N/A |
Ive tried the standard X3d glasses at a working range of 40feet line of sight. Havent tested beyon that. however disaster strikes if someones head moves even slightly in the way if front of you. I then tried raising the emitter above head level (when sitting), it works and then sometimes dosnt work (its erratic) and you have to keep "raising your head a bit" to get continous activation. So I feel solution for a small sit down audience of more than one row, has to be more powerful emitter  or an emitter distributor. clyde | ||
| Anonymous Rating: N/A |
Hi all, I've got an Infocus X1a which works beautifully at 85 Hz (when it doesn't switch back to 75 Hz as it does in some games). However, lately I looked a bit more closely, and found that there is some ghosting and I've got this feeling it might be because of a color-disbalance so to speak: when stereo is activated (by ED activator for example) I notice that my right and left eyes get a bit different picture: there is a slight color distortion. It very much looks like one eye sees a warmer picture than the other (resembles the difference witnessed when the color temperature setting is changed on the projector). I've stumbled upon this thread and it seems obvious to me that this also has to do with the advanced timing control like Michal explained. I did some playing around with some settings (back and front porch) and noticed that the effect was sometimes reversed but I still haven't managed to get rid of it. So, here's my question: can anybody (probably and preferably M.H.) help me with this? Maybe also explain what the front and back porch thingies are? Because I don't know anything about this stuff. Thanks, Geert (HEMEX) | ||
| M.H. Rating: N/A |
Anonymous: I can not help you :-(. I am not familiar with X1a. InFocus DepthQ was otimized for stereoscopic purpose and the stereo mode works very diferently than on normal models. | ||
| PiXeL Rating: N/A |
I had the same symptom with my X2 at 75hz. At 60hz this issue goes away. I don't really know but maybe it might have something to do with the color wheel synch at 75hz. | ||
| Anonymous Rating: N/A |
M.H.: Can't you just maybe point me to a direction? How can I use the front and back porch to adjust the triggering of the glasses? Would it be possible at least? The X1a is virtually the same as the X2 and, well, at least it seems like they share some technical items with the Depth3d. Thanks, Geert | ||
| M.H. Rating: N/A |
Anonymous: I have only available exact nubers of the sync. parameter witch can be used for compensating of shutergalsses delays in combination with InFocus DepthQ. I realy do not know whatever it can work with a projector non-optimzied for stereoscopic usage. I am afraid you must simply experiment with the setup ... | ||
| Anonymous Rating: N/A |
Well, ok, I'll try to experiment a bit more. During my brief tests, I noticed that the color distortion effect switched from one eye to the other while adjusting some settings. Well, thanks for the info anyway. I would be glad though if you would just say what those "things" (front porch / back porch / synchronisation width) mean (or a www would be great). And also if I should adjust the horizontal pixels or vertical lines. Any tips would be great! Thanks, Geert | ||
| M.H. Rating: N/A |
InFocus DepthQ available for demo. I had finally got for my company (GALI-3D www.gali-3d.com) a demo unit of the DepthQ InFocus projector. I had made head to head comparison to CRT based visualization as well as to our company hi-quality passive projection setup. I thing it will be better if you will see the result yourself - I can arrange a demo for anybody coming to Prague. Safety warning: There is a high risk you will put your CRT or passive projection system in trash after seen the results. I cannot take responsibility for this :-). | ||
| kip Rating: N/A |
I have a couple of sets of shutter glasses but the FOV is not good. Are there any available which surrounds your eyes. IE curved. | ||
| M.H. Rating: N/A |
kip: Try Stereographic or NuVision (MacNaughton). I am fully hapy with the FOV. | ||
| Anonymous Rating: N/A |
This pathetic excuse for a projector only has a native res of 800/600. UNBELIEVABLE. | ||
| M.H. Rating: N/A |
Much more pathetic is that most stereo-video movies come on the market in 720x240 resolution :-). Anybody who does not belive the device can beat other soultions is strongly welcome ... I will put in the same room a fine tooned 1024x768 passive setup + the 800x600 active setup and let him decide :-). Why the resolution does not play a key rule: 1) For stereoscopic video the source resolution is usualy lower than the prejector resolution 2) For games the required GPU performance is doubled by the stereo image generation - playing in 800x600 gives better performance 3) Human brain can synthetize from stereo image a new one image at higer resolution. The psychological resolution is higer than 800x600 4) The filter used for passive projection usualy unsharp a bit the image -> reducing the resolution anyway. This does not occure in this case. I can continue for a long time ... You should realy see the device in praxis to belive I am not giving only stupid marketing talks ... | ||
| Anonymous Rating: N/A |
Yes, I can confirm the finding that a stereo image looks much better than a flat image with respect to "better looks": it just looks like the resolution is much higher than 800X600. The perceived sharpness of the image is way higer in stereo. I'm using the X1a (I guess I should register here so I don't have to repeat this all the time) which is also 800x600 and I'm very happy with that. Also, normal DVD's work great at 800x600, much better than I expected. I've lots of plasma and LCD screens in shops which were much smaller AND gave a much worse image than the X1a. HEMEX / Geert | ||
| Anonymous Rating: N/A |
(Q&A from DepthQ website) Q: Are there any special requirements for the projection screen? A: No. While the best results will be obtained using an actual projection screen, any light-colored surface can act as your screen in a pinch - even an ordinary wall. However, if your ambient light levels are expected to be high, we do recommend that your screen have a gain of at least 2, or you consider using a rear-projection screen, as pictured below. _________________________________________________ You can also purchase it from: http://www.sharpertechnology.com/DepthQ.html (includes eyewear and emitter) | ||
| M.H. Rating: N/A |
I had tested the projector in stereo mode with normal room white painted wall ... It gives good results even in economic lamp mode .... | ||
| Anonymous Rating: N/A |
Geert here is the info you wanted regarding front porch and back porch: http://www.epanorama.net/documents/pc/vga_timing.html I am experiementing and if I find anything interesting I'll post the results Unclebob | ||
| Anonymous Rating: N/A |
Can anyone advice on a good screen (and where to buy) for rear projection using th Infocus DepthQ projector? | ||
| test Rating: N/A |
test http://store.infocus.com test | ||
| M.H. Rating: N/A |
You can use e.g. screens from InFocus: http://store.infocus.com I was comparing the results of a video projection screen with results obtained by projection on well pinted white room wall. It was almost identical. Another topic is usage of high-gain screen. They can boost the light intensity by a factor of 2 or better - but they must be very precisely flat mounted. | ||
| Clyde Rating: N/A |
MH, does the Depth Q exhibit any "blue ghosting"? I only ask because most single chip dlps have blue color ghosting ( i recently saw that on toshiba dlps) Also does any one know list price of Christies mirage 2000? I got a price of around USD 50Kfor that! Regards Clyde | ||
| M.H. Rating: N/A |
Clyde: I do not know how a blue ghosting should look like. Is this an stereoscopy related effect ? Can you , please, describe me for what exacly should I look for ? | ||
| clyde Rating: N/A |
well ok, yesterday I saw a demo by Sensio. unfortunately, I think this was by their distributor, as no technical questions that i asked were answered correctly (they tried at first the usual marketing lingo, but gave up soon) Anyway, they were showing it via a Toshiba DLP projector. There was 3d of-course, but with flicker (60hz )and it was playing a dvd. Now the ghosting was that there was a Blue outline like how if you are using bad anaglyph glasses and you see a red outline via bad cyan filters. It's as if the Blue "Gun" (if this was a CRT projector) was not being shut off, or, was leaking thru. thats what I was asking about, is this present in the infocus DepthQ? (I was reading previous posts on this board and there are references to blue ghosting in other dlp projectors eg .. http://www.stereo3d.com/discus/messages/21/2716.html?#POST13318 ) search for "blue ghosting" in that thread Regards Clyde | ||
| Anonymous Rating: N/A |
Yup same blue ghosting with the Infocus X1. Except when run in Native mode at 1024 res. Then there is NO ghosting at all. Although you only get the top left 800*600 pixels. You can adjust to get the middle 800*600. I'd suggest the ghosting is due to the glasses being out of synch with the projected picture due to some internal processing by the projector rather than the single chip itself. Else why no ghosting at all at 1024 res signal resolution? Tried adjusting Synch width and front back porch as described above but to no avail. Hope this helps guys Unclebob | ||
| clyde Rating: N/A |
hi UncleBob, im hoping that the Lightspeed guys have fixed the sync issue, as they have said , precise 1 frame delay only. so maybe the Blue Ghosting has gone too.. Lets see if MH confirms this. Regards Clyde | ||
| M.H. Rating: N/A |
I undertstand now. You speak about desynchronziation (phase shift) of the output with the source. InFocus DepthQ is perfectly synced with the source (exact one frame delay neccesary for digital reporcesing) = there is ablsoutly no blue ghosting. We have a special pattern for such test showing R G B rectangles for left and right eye not overlpaing each other. In shuterglases you clerly see only the rectangles for the given eye, all colors for the second eye are non visible ... The same test could be done with CRT monitor or passive projection - results clearly shows much more less ghosting for all color chaneles in InFocus DepthQ. I will try to make a photography through shuterglasses of the test pattern and send it to this board. The diferences between CRT monitor and DLP projection are realy great ... | ||
| M.H. Rating: N/A |
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| M.H. Rating: N/A |
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| M.H. Rating: N/A |
I hope the images above gives some answers. The top one is a photo made through NuVision 60 GX glasses showing a test pattern projected by InFocus DepthQ projector. The bottom image shows the identical test pattern through the same galsses as shown by standard CRT monitor. In both cases 100 Hz fraquence was used. No photo post-procesing or any other image manipulation (only scaling) was done. The test pattern contians identical squares in left and right eye area (not overalping) ... It is visible that InFocus DepthQ produce much more less ghosting than CRT monitor and no blue ghosting at all .... | ||
| Anonymous Rating: N/A |
A bit late maybe, but thanks Unclebob, for that info about front and back porch. Will let you know when I get some results. Geert | ||
| clyde Rating: N/A |
Thanks MH This confirms it the Depth Q is the step in the right direction for stereoscopic projection. Regards Clyde | ||
| Anonymous Rating: N/A |
Geert seems that the Total Frame Time is: Sync pulse length + Back porch + Active video time + Front porch So I've been working on making sure that they add up to the same figure each time to preserve Frequency. I may be wrong but if the ghosting is due to processing in the projector itself then I am trying to keep the refresh rate constant and vary the time on/off for the glasses. Anyone see a problem in my rationalisation please let me know. Remember to click on apply BEFORE making any changes and then when you have made the changes click on APPLY again (from the manual). Also the input fields are a little a screwy when inputing numbers. Let me know. By the way this is the blind leading the blind as I am not sure which part of this signal (if any) triggers the glasses! But if it works for a similar projector then we could just hit on a solution. All the best Unclebob | ||
| Doshi Rating: N/A |
Which Projector is better for 30 people DepthQ or Sensio? | ||
| M.H. Rating: N/A |
Sensio is not a projector. This is a device for changing the image framerate and for L/R-> page flipping image conversion. Finaly the best solution will be a combination of Sensio box with the InFocus DepthQ projector. But InFocus DepthQ is targeted for smaler projection action (5-15 people) ... Under optimal condition, it could be used with screen of 2.5m width (total darkening + high gain screen) ... For 30 people I still suggest PC + at least 2x 3000 ANSI projectors , 3 m screen width + passive projection. Or if you do not want to have ghosting - Christie Mirage DLP ... But this is in $X0 000 category ... | ||
| Doshi Rating: N/A |
Thanks M.H. for guiding me but i dont have this big budget what will be the other solusion? | ||
| M.H. Rating: N/A |
Doshi: I am afraid that if you do not want to make non-acceptable compromise according quality, there is no other solution. The only one compromise I find acceptable is to go down with screen size + projector ANSI. 2 m screen + 2x 1600 ANSI projector is ot the edge to be acceptable for 30 people ... Other people will have probably some other suggestions - but my opinion is: It is not a good idea to show to people not perfect stero and cuorrput their opinion about this technology in this way ... The small dual projector setup I suggest can cost you $5000 or so ... It is sub optimal setup esecialy becouse of no "lens shift" in the cheap prjector (you will be not able to get good image overlap"), ghosting nad low ANSI , but this is probably the absloute minimum worth to use ... Price of optimal setup for 30 people will be in thr $15 000 - $30 000 range .... | ||
| clyde Rating: N/A |
M.H. some more questions if you dont mind... will the depthQ sync correctly at 60hz? ie no drifting out of sync? I ask this for playback of 3d dvds on normal dvd players and shutterglasses 2) are there any shutterglasses bundled with the DepthQ? also if you are interested in some presence in the MiddleEast (for other products)we can discuss Regards Clyde | ||
| clyde Rating: N/A |
actually I meant 50hz (for pal dvds) Regards Clyde | ||
| Peter Wimmer Rating: N/A |
I had the possibility to see the DepthQ at work and I can confirm that it performs as well as Michal Husak said. The image was 100% flickerfree and there was no visible ghosting. The DepthQ also worked on my notebook with the builtin GeForce FX 5200 Go running the NVIDIA consumer driver. In conclusing, it is the perfect solution to present 3D to a small audience. Using the DepthQ is as simple as connecting the projector to the computer, connecting the shutterglasses to the computer and starting the 3D application! | ||
| Christoph Bungert (Admin) Rating: N/A |
###will the depthQ sync correctly at 60hz? ie no drifting out of sync? I ask this for playback of 3d dvds on normal dvd players and shutterglasses ### Yes and No. It will sync to 60 Hz on the VGA-input. The video-input goes through a de-interlacing process destroying the stereo-information. We couldn't find an option on the projector to switch this off, but we didn't spend much time on this issue. Maybe M.H. can ask InFocus if the projector can be set to BOB-mode for this purpose. (My InFocus LP70 works in BOB-mode by default and makes analogue PAL/NTSC stereo possible.) However it would be a shame to use the DepthQ in 50 or 60Hz. It's a much better option to watch 3D-DVD's in 120Hz using the PC and a 3D-video-player. Also if you have to choose between frame-sequential- and Sensio-DVD version you should go for the Sensio-version - which again requires a PC to work on DepthQ. Christoph | ||
| M.H. Rating: N/A |
Clyde: - the InFocus DepthQ is not designed to sync to 60 Hz or 50 Hz composite video signal from DVD player or video recorder in stereo mode. It can sync. to 60 Hz output from PC, but this is not the mode giving sense. It is suitable perfectly for playabck of stereoscopic DVD (both in Sensio or Interlace format), but you must play them on PC and use 120 Hz or 100 Hz output, to fully utilize the non-flickering projector futures. Peter Wimmer Stereoscopic player is perfect for this purpose (if you do not want to buy DepthQ Server availabe with the projector at reduced price) - Accordin glasses, the projector is sold primary without any glasses and we let the user chose witch glasses he prefers. In pricliple the projector works with all PC shuterglasses avaialbe on the market. Some of them works better than other - there is not ghosting produced by the projector so the ghosting produce by low-quality glasses is clearly visible. Some of the distributors bundle the projectors with NuVision or Stereographic models. My company sell the glasses separately, based on the client request according nuber and glasses type. | ||
| clyde Rating: N/A |
thanks Michal. Yes, my main aim is to use dvd playback thru a PC only to take advantage of the flicker free features at higher hz. I was just hoping to take on the (to me) ridiculous product that is the Sensio, which only does flicker inducing 60hz. Regards Clyde PS is there any ghosting with the X3D glasses? As you know we are the presence of X3D here and have surplus of these units. Regards Clyde | ||
| M.H. Rating: N/A |
Clyde: X3D glasses works with the projector very good (as well as most glasses from Illico production). According Sensio - I belive it is a question of time they will make a version of their box with 120 Hz output compatible with the projector. This will be a optimal combination for people witch do not want to use PC and require super-simple setup. According projector demo in the are you live - you should ask Lightpseed people directly, my company operate only in central Europe. | ||
| Anonymous Rating: N/A |
So does the DepthQ display ghost free video at 800x600? On my X1, 800x600 kept an uncropped image but with blue ghosting so I had always played back ghost free DVDs at 1024x768 but suffering from a cropped image. | ||
| M.H. Rating: N/A |
Anonymous: If you do not belive me, ask Peter Wimmer or Christopher Bungert for opinion (they had seen a demo) . With good shuterglasses the output from InFocus DepthQ is ghosting free and without flickering. | ||
| Anonymous Rating: N/A |
Oh I believe you 100% about zero ghosting and flicker but is that possible in native res with uncropped image playback? | ||
| M.H. Rating: N/A |
You mean in 800x600 or in 1024x768 downscaled to 800x600 ? The projector was design for stereoscopic usage - so it works without any problem. | ||
| Anonymous Rating: N/A |
I guess I've even confused myself a bit. I have an X1 and in order to avoid ghosting I playback video in 1024x768 on my PC. It's wonderful to have zero ghosting but in turn the image is cropped. Sounds like with the DepthQ I will be able to playback video in 800x600 to avoid cropping and ghosting as well? Sorry for any confusion... | ||
| Charles Rating: N/A |
This is a reply to Anonymous: I own a DepthQ InFocus projector and use it at 800 x 600 at 120 Hz with both the DepthQ software and Peter Wimmer's player. With these settings on my system, the DepthQ player doesn't crop the image in either windowed or full-screen view. (I get windowed stereoscopic view using OpenGL Stereo with a Quadro graphics card.) With Peter Wimmer's player, the windowed view gives a SLIGHT image cropping at the player's default window size, but no cropping in full-screen mode. There is no flicker and no ghosting with either player. | ||
| Anonymous Rating: N/A |
I'm sold. Thanks for the input everyone. | ||
| Christoph Bungert (Admin) Rating: N/A |
My full DepthQ review is ready. http://www.stereo3d.com/depthq.htm Christoph | ||
| Peter Wimmer Rating: N/A |
I fully aggree with your review, but want to clear up some DVI issues: DVI has a DDC pin to transmit EDID data from to monitor to the graphics card and DVI works at any refresh rate as VGA does. You can only select 60 Hz on your system because the LCD screen tells the graphic card that it doesn't support higher refresh rates. PS: The EDID descriptor even provides fields to identify stereoscopic displays. But I believe no stereo display is actually using them... Peter | ||
| Charles Rating: N/A |
You can force the DVI output to 120 Hz with either a genuine Quadro graphics card or an nVidia GeForce card hacked with SoftQuadro4. To do this, completely disconnect the LCD monitor from the computer and connect the projector to the DVI port. Reboot, and the Quadro display menus will list the projector as "DepthQ DQ3120 display" and allow you to set 120 Hz for that port. (The Windows "Display Properties" menu will NOT list the projector correctly and may continue to show a 60 Hz refresh rate. Ignore this false Windows "Display Properties" information and work with the Quadro menus instead.) If you also have a CRT monitor connected to the card's VGA port, set the Quadro menu for "clone" display mode. On my system, this provides 120 Hz page-flipped 3-D through BOTH the VGA and DVI ports simultaneously. (The left and rigt images are reversed on the monitor and projector.) With a true Quadro card, the DIN stereo synch port provides perfect synchronization with the projector. With a hacked GeForce card and a CRT monitor in "clone" mode, you can synch the shutter glasses to the VGA output while the projector is connected to the DVI port, and the projector synchronization is still perfect. (I currently have my wired glasses connected to the VGA port and my IR emitter connected to the DIN port at the same time, and both work with no problems.) Note to nVidia consumer stereo driver users: I have not been successful in attempts to force 120 Hz through the DVI port with that driver. | ||
| M.H. Rating: N/A |
I did not tested this , but Lightpseed people reports the 120 Hz through DVI works. The projector should report through DCC/EDID dsecriptor correctly it suports 120 Hz. If anybody need make this mode functional, I can request form Lightpseed people details how ot make this working ... | ||
| M.H. Rating: N/A |
Jut a commenet: If you activate all outputs of the nVidia drivers and chose DIN-3, is should produce eye reversed DCC output. In this way InFocus DetphQ can work with standard Elsa Relevator glasses as well and EDimansional glasses (information from eDimensional people)... Some other solution for reveting the eye: - wilred galsses = simply switch the L/R wires in a jack pass through dongle - DIN-3 connected glasse, my company GALI-3D had develped a pass through signal reverting circuit making this possible, we are prearing prduction, E-mail me for details | ||
| Anonymous Rating: N/A |
Hi Christoph, Hope you'll excuse a newbie question.... In your Depth Q Review you say the elsa wireless glasses give an excelent result but then go on to say that a combination of ELSA Revelator with the nVidia consumer stereo-driver won't work, since both of them have no reverse switch. How do you overcome this problem? Thanks, Dave | ||
| M.H. Rating: N/A |
Anonymous: Ther exist 2 ways how to solve this problem: 1) If you do the non official activation of all stere modes of the graphic card and chose the DIN-3 output (instead of shuterglasses), you will get correctly reversed signal on both DCC and DIN-3. This is a non-offcial method - non intentional solution based on the nVidia drivers futures. 2) During 2 week we (GALI-3D) will suppy a stereo signal reporiceisng box doing the neccesary switch + offering several other futres as well (signal forking, boosting signal power, signal diagnostic). | ||
| M.H. Rating: N/A |
P.S. The mentioned probelm is related only to playing games. All existing video playback or still image visaulization codes have the eye reverse swith in software. For profesional OpenGL applications, there exist an permanent switch in nVidai drivers setting. Btw. the problem exist with ALL DPL projectors = Christie Mirage revers the fiedls as well. | ||
| Anonymous Rating: N/A |
M.H. You say: "2) During 2 week we (GALI-3D) will suppy a stereo signal reporiceisng box doing the neccesary switch + offering several other futres as well (signal forking, boosting signal power, signal diagnostic)." Do you have any info on this? What do you mean by signal forking? Do you mean splitting a field-sequential video into two full video streams for use in a dual-projector polarized setup? | ||
| Anonymous Rating: N/A |
But surely the depthQ team have a work around for this problem? | ||
| clyde Rating: N/A |
Seems no workaround yet, but the nvidia Din3 option seems worth investigating. Thanks MH. meanwhile, will the reprocessing box your working on have the ability to be daisy chained MH? that would be great. Regards Clyde | ||
| Anonymous Rating: N/A |
so the depthQ people aren't marketing this as a gaming projector?? | ||
| Christoph Bungert (Admin) Rating: N/A |
The LightSpeed (DepthQ) people may think that if you have the money for the projector you should also be able to get a decent glasses-controller, like the NuVision NSR. As a true 3D-device the DepthQ projector should have a DIN-3 glasses sync output, a reverse switch and maybe even sync-fine-tuning capabilities, but it hasn't. The goal was to keep the price down, which means stay with the X2 chasis design, no extra connectors, no extra buttons, no extra firmware, only the most neccessary modifications. If you look at the chart in my DepthQ review you'll see the hardware I used and see that I tested the ELSA-glasses in conjunction with the NSR-controller. O.K. that's a bit unfair, but I hadn't that much time for experimenting with the 'dumb' standard ELSA cable. Christoph | ||
| Anonymous Rating: N/A |
Thanks Christoph, So your recommendation for best gaming combo would be DepthQ, Elsa wireless and NuVision NSR? Dave | ||
| Anonymous Rating: N/A |
Does the NuVision controller only come with the glasses or can it be bought seperately? Dave | ||
| Christoph Bungert (Admin) Rating: N/A |
The 'dumb' cable which comes with the ELSA and other DDC-driven controllers (like eDim) do the job. Only problem is the stereo-reverse. So as long as you get it working and into reverse by means of software you don't need the NSR. If you encounter problems the box announced by M.H. will do the trick as well. In general I prefer v-sync driven controllers over DDC-driven, since v-sync always works and doesn't know any software-issues. I also prefer controllers with buttons over pure software controlled boxes. In that respect the NuVision NSR, VRStandard VRJoy, i-Art and such are great controllers. BTW M.H. wrote: "1) If you do the non official activation of all stere modes of the graphic card and chose the DIN-3 output (instead of shuterglasses), you will get correctly reversed signal on both DCC and DIN-3." I tried this on my consumer 6800GT and it doesn't work. In DIN-3 mode I don't get a DDC-signal. Maybe this only works on Quadros? Or do I have to make an additional change in the registry? I haven't tried the registry hack for reverse yet. Christoph | ||
| M.H. Rating: N/A |
Christoph: I will check on what graphic card and in what mode is the trick functional and let you know. I did not try this with the latest drivers versions ... It sound like it was mor e bug in specific nVidia drivers version than an intentional future ... Generaly this is a problem with drivers, not with the projection system. OpenGL drivers alredy do have software l/r eye switch. I hope nVidia will extend the game drivers by this future soon ... | ||
| M.H. Rating: N/A |
I apology for confusing people ... The trick described by me works, but realy only on Quadro graphic cards. It is neccesary to connect the eDimensional emmiter to the Quadro miniDIN-3 stereo output not in the eDimensional box .... How it works on Quadro: DCC mode: Both DCC and miniDIN-3 are active, normal eye setting. minin-DIN-3 mode: Only mininDIN-3 is active, eyes are reversed, DCC is deactivated :-( Maybe it can work with other drivers ans after some hacks, but with 71.84 it works as described ... | ||
| M.H. Rating: N/A |
EyeSwitching electronic box We have availbe a HW solution for the comfortable eye switching : G3D EyeSwitcher http://shop.gali-3d.com/katalog_detail/katalog_detail.php?id=15 The device is availabe from us and it will be availabe from eDimensional soon as well. Let me know if you need more specifications and information about compatibility with IR emmiters. | ||
| anonymous Rating: N/A |
I want a cool 3d setup using Depthq.. what are all the components I need (including what graphic card in my pc) thanks | ||
| M.H. Rating: N/A |
You should specify for what purpose do you want to use the system: - games - stereo-video - profesional stereoscoopic applications You should specify as well how big screen do you want to have. E-mail me directly this specification, I will optimize the setup specification based on your requests. | ||
| tolou Rating: N/A |
What is really the stereo features of a DepthQ? Is the only fact that it provides a higher refresh rate?? | ||
| M.H. Rating: N/A |
tolou: It provides higer refresh rate an it is in exact sync (with exactly one frame delay) with the input signal. Almost all DLP projectros worsk interanly in 60 Hz only and the output is not synchronzied with the input signal = flickering, eye mismatch or color deformation. | ||
| Jmlove Rating: N/A |
An Immersive display with a DLP-projector is pictured here: http://www.sensable.com/products/Haptic_Gallery/SenseGraphics_3D_MIW.asp ;-) | ||
| BlackBart Rating: N/A |
Ok the depthQ seems very promising. Would it be possible to use two of them? Change FOV in game, to 120+, use a curved screen and two projectors, projecting each half? At what angle does the shutterglasses have to be to function? Could this work? 3D in semi-surround. | ||
| Charles Rating: N/A |
If you are talking about having separate side-by-side left and right images (parallel stereoscopic format) projected on a wide curved screen, the fusion points of the two images will be too far apart for both eyes to focus on simultaneously with standard shutter glasses. You could use multiple projectors coordinated to show a panoramic view of side by side images, each of which is individually displayed in page-flipped stereo (M.H. can tell you how to accomplish this), but you could only focus on part of the total semi-surround image at a time. | ||
| M.H. Rating: N/A |
BalcBart: We had tested usage of 2 of them with one PC to get panormatic views in combiantion with OpenGL page flipping output. This works (you can test the same with 2 CRT monitors). The result is 1600x600 view ... You must use Quadro card = the outputs are genlocked. I had tested this with Quadro 1100 FX. Up to now we did not tested this with the game drivers ... So it will just now work for sure with OpenGL native stereo enabled games = Quake I,II,III, Sin. Compatiblity with the consmuer drivers must be tested ... For curved surface the game engine shoudl be modified ... But the best experience can give the CAVE device (room with all walls made as projection screen). We will be building one based don 4 InFucs DepthQ projectors for one Univ soon ... In this case it is neccesary to use multiple PC with genlocked graphic card (Wildcat or Quadro 3000/4000 G) | ||
| M.H. Rating: N/A |
InFocus DepthQ demo at ISU 2005 For your information. We had finally decided to go to ISU conference this week: http://www.stereoscopy.org.uk/ISU2005.htm So anybody interested in InFocus DepthQ demo in combination with DepthQ Server and NuVsion 60 GX glasses is welcome in Eastbourne, GALI-3D stand ... | ||
| krakoukas Rating: N/A |
Hello, As I dream for 3D at home since I saw my first IMAX movie, I feel really interested in buying a DepthQ. But after reading a lot about it, I couldn't understand what is the best/cheaper configuration for game use (or more). - Videocard? - IR emitter? - Shutterglasses? Is there any bundle provided anywhere? Thanks | ||
| Charles Rating: N/A |
Krakoukas: Both Stereographics and Nuvision sell the InFocus Depth projector bundled with their brand of shutter glasses and their proprietary IR emitter. However, the Stereographics and Nuvision glasses are "professional" level, and these bundles are VERY expensive. You can save hundreds of dollars by buying the projector and a good consumer-level pair of wireless glasses (such as the eDimensional glasses + IR set) separately. For stereoscopic gaming along with playback of 3-D DVDs, you should have a fast nVidia GeForce graphics card. (If all you wanted to do was watch 3-D DVDs or videos, a Quadro card would be preferrable because of its OpenGL Stereo capability.) | ||
| JK Rating: N/A |
But general problem with other glasses than Stereogrpahics and NuVison = there exist no IR high range emmiter for them. And for projection system high-range emmiter is more than useful (this emmiter have up to 50 IR LED and take care about giving you ALWAYS the correct signal) ... | ||
| Charles Rating: N/A |
I fully agree that the professional-level glasses and their IR emitters are preferable to the consumer-level models if you have the extra $$ to spend for them, or of you have a situation (moderately large viewing audience) where long range, wide-beam emitters are necessary. But if you want to use the projector purely for home viewing and don't have a lot of extra cash to spend, the much cheaper consumer glasses + standard emitter will function acceptably. eDimensional is now offering a "long range" emitter with 2 pairs of its standard glasses for $495. This is about the same price as for 1 pair of Nuvision 60 CX glasses and its long range emitter. So if you want to spend $500 for the eyeware + emitter, I'd recommend the much better professional level Nuvision glasses. The best glasses + emitter combination currently on the market is the StereoGraphics CE-3 model, but this will set you back about $1,000, and it isn't worth twice as much as the Nuvision professional set. So you have several high quality choices starting around $500... | ||
| krakoukas Rating: N/A |
Thanks for your opinion. But adding such glasses increase the price of the package so high that I am not sure that 3D is ready to enter my home... As I understood, IR emitter power is the clue. And good LCD sync and shuttering also. I saw that E-D makes long range package is it comparable to the NuVision one? I saw a comparison of 3D perception here: http://stereo3d.com/depthq.htm but E-D glasses are not listed and NuVision 60GX wireless are not the best... Fortunatly, I own one pair of Elsa revelator glasses, but does anybody has tried others? | ||
| M.H. Rating: N/A |
IR emmitor comparion - it is imposisble to comapre ED emmitor with 2 IR diodes and NuVision emmiter with 50 IR diodes. This are 2 different categories in both price and quality targeted on different market. According the NuVision 60 GX glasses marked in the review as not the best - I thing this marking was stronlgy subjective. ED glasses have a bit different timing and diferent absoption properties than NuVsion 60 GX - so the image looks a bit different but it is hard to say witch one is better. We have with InFocus DepthQ and NuVison 60 GX perfect results as well as with the ED glasses wired version. | ||
| krakoukas Rating: N/A |
Maybe it's possible to have E-D wireless glasses work with Nuvision 50 led emitter? In that case, we have the best of the 2 products. Do you know how many leds have the E-D long range emitter? | ||
| M.H. Rating: N/A |
From what I know E-D long range emmiter has 2 LED with extended intensity, mebye 4. I am not sure. Unfortuantley I know exaclty the ED glssses do not work with the NuVison emmiter (the communication signal is totlay different). Our company GAlI-3D work on universal hig-raneg emmiter witch will be programable and compatible with all existing shuteglasses. It will be availabe during 2-3 months. | ||
| M.H. Rating: N/A |
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| M.H. Rating: N/A |
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| M.H. Rating: N/A |
Dual InFocus DepthQ can produce 1600x600 resolution at 3200 ANSI. The images above ilustrate first testion of such instalation made at TU Viena - Austria. Single Quadro 1100 FX was used for generation of 2x genlocked 800x600 output. All stereoscopic OpenGL applications works without any modifications (including stereoscopic video playback). | ||
| clyde Rating: N/A |
looks great! only one thing confuses me, its not really 3200 ansi as its 1600 ansi at any given point on the screen right? I mean if you used a photometer thats what it would show. Still widescreen stereo looks cool! Regards Clyde | ||
| M.H. Rating: N/A |
Clyde: My interpretation of ANSI value meaning: The strenght of the projetion system is given by sumation of all light sources used. So the correct nuber is realy 1600+1600 = 3200 ANSI. It does not play a rule whatever the light sources overlap or whatever they are side by side placed ... If you will use a photometer, it will make sumation of light from both parts of the image and give you 3200 ANSI light flow total as well ... If you will use a single projecor with 3200 ANSI and light the same area as by the 2x InFocus DepthQ, the total light flow will be 3200 ANSI again .... ANSI is not given in intensity/area units, it is the total intensity of light flow used for the projection system. I had a long discusion abou this topic with Mr. John Bilingham from Sout California stereoscopic club and he finaly agreed my interpretation is correct, the total ANSI should be given as the final result. | ||
| clyde Rating: N/A |
I still dont understand, but if you have convinced JB then i guess its true. What i cant understand is a photometer held at teh leftmost edge of the above image should show 1600 ansi and not 3200 as the projectors atrent stacked over each other and aimed at the same spot, but rather they are horizontally apart -confused, Clyde | ||
| M.H. Rating: N/A |
The fotometr does not measure ANSI. ANSI is a unit of total light flow , not a unit for light measurment in given screen postion. The photometere measures ANSI/foot-squared or its equivalnet lambert/foot-squared . If you want to know the ANSI of a projection you shoud: 1) Measure by fotometer the lambert/foot 2) Multiply this by the complete screening area to get total ANSI Ilustrative question: You have a 3200 ANSI loomen projetor. You will project on the 3x1.2 m area. What will be the ANSI of this projetion system ? You have a 3200 ANSI loomen projetor. You will project on the 6x2.4 m area. What will be the ANSI of this projetion system ? What will change if you will use 2 projetors to achive identical effect ? Will you see any diference if this projetors will be overlaped or placed side by side (in both cases lighting on the same area) ? | ||
| 3d buyer Rating: N/A |
could anybody post a photo of the square pattern using a depthQ? I would like to see the exact color balance that it claims before purchase one. Thank you | ||
| M.H. Rating: N/A |
3d buyer: InFocsu DepthQ has 3 predefined modes (Presentation,Film,Video) + 3 programable color modes so the color balance can be anything what you want ... Can you, please, specify exactly what pattern in what mode do you want to see ? | ||
| 3d buyer Rating: N/A |
Hi M.H. I would like to verify if there are color differences between right and left perspective... there's a lot of posts about this issue regarding other projectors... In other words I would like to see this picture http://www.stereo3d.com/discus/messages/3177/3320.jpg without the shutter glasses between the image projected and the camera. | ||
| M.H. Rating: N/A |
Without the shutergalasses used, you will see 2 totaly identical color bars ... You are probably interested in a picture made through shuterglasses and showing both left and right eye view (the picture mentioend by you shows only Left view) ... Correct ? I will make such pictures and post them here ... | ||
| 3d buyer Rating: N/A |
I'm interested in a picture without shuterglasses... I would like to see how identical the 2 color bars are.... Thank you | ||
| redhotgamer Rating: N/A |
Why is the depthq different from another projector that does 120hz. There are a few models now that do 120hz, can anyone tell me what the difference would be? Thanks | ||
| Peter Wimmer Rating: N/A |
Which models besides DepthQ do 120 Hz? As far as I know, such models don't exist. | ||
| M.H. Rating: N/A |
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| M.H. Rating: N/A |
3d buyer: the image requested by you is above redhotgamer: all so coled 120 Hz projetors do not work in true 120 hz mode. They internaly change the input frequency or duplicate the fields = no use for stereo purpose. | ||
| 3d buyer Rating: N/A |
M.H. Thanks for the image. Can you post in higher resolution because I notice a little difference in red and yellow colors. | ||
| M.H, Rating: N/A |
3d buyer: Sorry, I had already deleted them. This test is biased by the JPEG compression, non uniform color of the wall used and procesing in the photoaparate. Anybody equiped with digital spectrofotometer has a way to Prague for exact test ? | ||
| M.H. Rating: N/A |
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| M.H. Rating: N/A |
3d buyer: I had instaled the prjector again and repeted the picture. Now the image colors are not biasted by compression artefacts ... I personaly do not see any color diferences ... |
