| Author | Message | ||
     Kesh Patel (Kesh_aus) New member Username: Kesh_aus Post Number: 1 Registered: 12-2006 Rating: N/A |
Has any one tried Optoma HD72 for strerio performace so far? | ||
| Kesh Patel (Kesh_aus) New member Username: Kesh_aus Post Number: 2 Registered: 12-2006 Rating: N/A |
OR Has any one tried Optoma HD70 for strerio performace so far? | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 5 Registered: 4-2006 Rating: |
We tested the Optoma HD72i and found that it would work at 60Hz (for time-sequential stereoscopic 3D video) but not at any higher frequencies. More info here: www.3d.curtin.edu.au (another paper with additional information on 3D compatible DLP projectors will be presented at SD&A 2007). | ||
| Janosz Poha (Janosz) New member Username: Janosz Post Number: 1 Registered: 4-2007 Rating: N/A |
Hello, thank you Andrew for this excellent test, and thank you Kesh for raising this question!! I was planning on getting a h72 but I want it to achieve 85Hz stereo in 1024*768 My understanding is that the failed 85hz test was run at native resolution...Could it work at 85Hz in 1024*768 through Powerstip?? | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 15 Registered: 4-2006 Rating: N/A |
I did not try 1024x768 @ 85Hz into the HD72i, but unfortunately I doubt it will work since the synchronisation problem is not with the rescaling chip, but with the DLP engine. | ||
| Janosz Poha (Janosz) New member Username: Janosz Post Number: 2 Registered: 4-2007 Rating: N/A |
Thanks for the answer... I'm wondering though, as powerstrip would bypass the rescaling (since it's meant to force a resolution and refresh rate)it would reduce the data flow: I thought that if the dlp chip had less data (forced 1024*768) to process, it might be able to synchronize...or am I completely wrong? Hey, if anybody out there has a h72 (lucky you)would you be so kind as to try it??? Thanks in advance... | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 18 Registered: 4-2006 Rating: N/A |
Powerstrip doesn't bypass the rescaling. Powerstrip forces the graphics card to output a video signal of your specifications. If you send a video signal to the projector which doesn't correspond to the projector's native resolution, it has to be rescaled. In my understanding this happens in a video reformatter chip, prior to the DLP engine, so that the DLP engine only deals with the native resolution of the projector. | ||
| Janosz Poha (Janosz) New member Username: Janosz Post Number: 3 Registered: 4-2007 Rating: N/A |
My mistake then... I guess I'll have to hunt for a 1024*768 dlp ;-)) |
