| Author | Message | ||
     renny (Herrb) New member Username: Herrb Post Number: 1 Registered: 2-2007 Rating: N/A |
"Bonjour a tous" I 'd like to know if anyone tried to re-use the old ASUS LCD shutter (VR100) glasses on an new graphic card? (without a extern 3D-Shutterglasses Controllers) I explain myself a bit... (sorry for my english, I'm french...) I'm thinking about a solution which could re-use the minijack connection of the glasses, passing through one of the unused mini-jack audio entries of the motherboard? Of course, it requires a software which send a synchronization signal from the audio entry? Did anyone hear about something like that? Is it be possible to get the synchro signal of the graphic card with a software application? thanks (Message edited by herrb on February 09, 2007) | ||
| Borg Rootan (Borg_rootan) New member Username: Borg_rootan Post Number: 3 Registered: 3-2007 Rating: N/A |
Hi.. you need hardware for synchronising your glasses with VGA output. Look at here: http://www.stereo3d.com/vgapt.htm | ||
| renny (Herrb) New member Username: Herrb Post Number: 2 Registered: 2-2007 Rating: N/A |
I knew this solution, but I was looking for a software solution because my glasses work fine with Nvidia stereo driver (with my old graphic card) and the connection of the ASUS LCD shutter is minijack, easy to plug on any audio card. Could it be possible to send an audio signal (or just an electronic signal, I don't know, through one of the unused mini-jack audio entries) synchronized with the refresh of the screen? Thanks for responding, Borg Rootan. | ||
| Borg Rootan (Borg_rootan) New member Username: Borg_rootan Post Number: 4 Registered: 3-2007 Rating: N/A |
For glasses you need voltage cca. 10V. Output of soundcard provide cca. 2,5V (...I mean, but I don´t gauge it). Then you must amplify output signal to specific level of signal --> need hardware. You may try playng 60Hz square signal with 90 degrees left/right ofset on sound card and looking with osciloscop at output... or conecting glasses. When glasses blinking with good dark/pure diference, then your idea is posible working. | ||
| renny (Herrb) New member Username: Herrb Post Number: 3 Registered: 2-2007 Rating: N/A |
well, hum I don't have osciloscop... and I think it's beyond my technical possibilities and knowledge. I was suggesting only one possible solution, but if it's not the right voltage...  For the hardware solution, you suggested below, The asus lCD glasses are not listed in the compatible hardware list. So I suppose I should simple buy new glasses and say goodbye to my old Asus. Thanks a lot for your advices Borg. | ||
| Borg Rootan (Borg_rootan) New member Username: Borg_rootan Post Number: 5 Registered: 3-2007 Rating: N/A |
I have too Asus Glasses. Their control signal is same like Edimensional ED-Glasses (but Assus glasses is better  ) . I have CD generator with sqare signal. I try test it soon with glasses OK?  . But... if this be working right, you need assembly control software.  | ||
| Bob Bedford (Bedford) New member Username: Bedford Post Number: 1 Registered: 6-2007 Rating: N/A |
Hi guys, I've also the ASUS VR100 shuttle glasses and thinked about using the audio jack output synchronised with the screen synchronisation. I'm a computer programmer, but I've no knowledge of the "hardware" part. I'd like to avoid to create an Homebrew controller since I've no idea on how to build it. I may build the software as proposed by Borg, but I need to understand what you mean by "you may try playng 60Hz square signal with 90 degrees left/right ofset on sound card" Also did your test with your square signal CD generator work ? If yes I think I can do a resident software. Also thinking of using the svideo output signal as it's becoming a standard in many new video cards. Contact me as your convenience and we may do it together: bedford1 at hotmail dot com. Cheers. (Message edited by bedford on June 20, 2007) | ||
| renny (Herrb) New member Username: Herrb Post Number: 4 Registered: 2-2007 Rating: N/A |
I'm still interested with your research, continue to post here please ;-) | ||
| Bob Bedford (Bedford) New member Username: Bedford Post Number: 2 Registered: 6-2007 Rating: N/A |
Pas de problème Renny, on va faire le necessaire. No probl Renny, we will do the necessary. Off course I wait on you, Borg, or anybody with the knowledge to help me build this software piece. Bob | ||
| Andrew L. Ayers (Cr0sh) New member Username: Cr0sh Post Number: 12 Registered: 2-2007 Rating: N/A |
Hmm - actually, this would probably be fairly simple to do. What is meant by the comment of "you may try playng 60Hz square signal with 90 degrees left/right ofset on sound card" - he means output two separate square waves, one on the left channel of the sound card, and one on the right - with one of them shifted 90 degrees out-of-phase with respect to the other (that is, when one square wave is "high" (say on the left channel), the other square wave is "low" (on the right channel, in this example). Then, route the L/R outputs of the soundcard from the mini-jack (1/8 inch plug) - each channel into the base of an NPN switching transistor (through a bias resistor, of course - 470 ohm or so should be OK). Connect the collector of each transistor to a suitable power supply (9-10 volts DC). The emitter of each transistor should go to whatever pins on the stereo-shutter glasses control each each. Now - the tricky part is keeping the signals from the soundcard in sync with the vsync signal of the video output. This is likely near-impossible. Due to timing issues, software bottleneck, and just plain-ole inter-system hardware lag... Even if you are able to get the thing to sync (ie, via software timing delays), it will probably get out of sync after a not too short period of time. Even so, it would probably be worth it to try. Unfortunately, it isn't as simple as simply plugging in the glasses to the jack and expecting them to work (I would instead expect either the glasses or the soundcard - or both - to let go of the magic smoke). Good luck! |
