Re: Broadcast SL3D

[P3D John W Roberts <roberts@xxxxxxxxxxxxxxxxx>]

>Date: Tue, 27 May 1997 20:46:17 -0500
>From: P3D William Carter  <wc@xxxxxxxxxxxx>
>Subject: Re: Broadcast SL3D

>...With this in mind, I played around with 60 Hz this weekend. This time, I
>couldn't get flicker. The flicker problem I had when I first started fooling
>around with this process must have been due to.., let's say my "primitive"
>methodologies.

Double-check: was that for-sure the kind of 60 Hz interlace that compares to
the NTSC standard? I think someone mentioned that some of the graphics
controller companies rate their interlace by the *frame* rate rather than
the *field* rate. NTSC has a field rate of 60 Hz (well, 59.94 Hz), and a frame
rate of half that. I don't doubt your word - just want to make sure your
controller is doing what we think it is.

>>Thought experiment - ...
>Ok. Using a hard Fresnel key, I shot several randomly placed chrome chair
>legs (chairs attached) against a dark background. No flicker. Lens flare? No
>flicker. No streaking. No glasses? Looked perfectly "normal". Glasses on?
>Good 3-D. Not an ambiguous chair leg in the lot.

Given that additional information, it looks like I'll have to keep an open
mind about the idea of SL3D broadcast for the time being too. :-)

John R


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