Video Preview with Nvidia Nview.

ZiGLiG wrote on 2/22/2003, 7:16 PM
Is there anyway you could use nvidia "nview" (the TV-out feature included on a number of geforce cards) to preview full screen to a monitor, much like you can if you "preview on external device" and route it out to your dv cam then rout the RCA outs to a monitor? Which is to say, when you have "nview" activated you can set it up to show any video that plays in media player or quicktime to automatically display full-screen on the composite outs. So i'm, assuming that because vegas uses direct x, the same would be possible for the video preview window.

Comments

ZiGLiG wrote on 2/22/2003, 7:34 PM
You should let me know if you know how to set this up, sdandrus@hotmail.com.
musicvid10 wrote on 2/23/2003, 5:06 PM
Sorry, the Vegas preview is not an overlay function, which Nvidia uses for TV output. You can use the "Preview in Player" option to output to Nvidia using a player. It must render the video first, however.
TheHappyFriar wrote on 2/23/2003, 6:46 PM
I belive Vegas doesn't allow output through ANY analog output (ie ATI TV Out or NVida TV Out). That's the only downfall of the program I see... if you can't afford an DV-Analog coverter (which I can't.... My wife would kill me if I spent $200-300 more on my computer.. VV4 was enough! :)
rgrandia wrote on 2/23/2003, 8:28 PM
This was just discussed on the Creative Cow in reference to the Parhelia card.

It seems the consensus is that even when one uses these NTSC outputs, the image never looks quite right.

Ron Grandia
ZiGLiG wrote on 2/25/2003, 11:57 PM
Guess what i just found out, it DOES go to the nview video out when i'm capturing video, not when the capture window is open, but when i'm actually capturing video... ....odd.
HPV wrote on 2/26/2003, 12:40 AM
Yes, you can drag the Vegas preview window to the Nvidia analog output screen.
You can size the Vegas preview window to show all of the active safe area of a 720x480 signal on a 640x480 screen, just like a TV hides the overscan area. Make sure to right-click the preview window and select "simulate device aspect ratio". Otherwise you'll have a horz. stretched image. With windows/nvidia display properties you can make adjustments with the color correction panel and the device selection/device adjustments panels. I've been able to adjust my Geforce 2 MX analog output to almost be a perfect match to the DV signal. How do I know? Because I have a Svideo switch box that lets me bounce between the Nvidia and Vegas OHCI ext. monitor (thru DV camera) output signals. This also lets me use either signal. Why? Because the Nvidia analog output is progressive. It won't show interlace jitter on stills and high contrast graphics. Instead it shows one field ghosted over the other. So I bounce between them as needed. Why use the nvidia output if it doesn't show a true interlaced signal? Because the framerate is much higher for previews. Also lets me drop to a halfsize preview for even higher framerates, but doesn't take up any real estate on my main monitor.
When you use OHCI ext. monitor output to check for jitter, make sure you use the "good" setting. Draft and preview won't display an interlace signal when you have scaling, motion or geometric fx/transitons.

Craig H.