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Posted by Richard Crowley on 10/04/08 11:37
"Tech Geek" wrote ...
> Hi! I've already sent this message out to rec.video.professional, but
> nobody was able to help me . . . hopefully somebody here could!
> Anything is much appreciated:
rec.video.professional is not active. It is a moderated news
group which means that messages get propogated only after
the moderator gates them. But there is no moderator, so no
messages are being propogated except accidentally by a
few mis-configured news servers. I am using one of the
largest news servers on this planet (Supernews) and no
messages have been propogated in r.v.p for 2-3 years.
> I checked with the instruction manual (availible online) and followed
> the directions very carefully. I put a student in front of the canvas,
> put the camera on the student and canvas background, selected the
> camera on the B-BUS (it's a two bus board (A and B)) as told by the
> directions, and put the picture of a mountain scene on A-BUS (coming
> from the computer). To activate green screen, you use a little curser
> on the preview television hooked to mixer to select the background
> which you will be "changing". I did as the instructions said, pushed
> enter, and it did the opposite of what I wanted! It made most of the
> student mountain-designed, and the white canvas . . . white. I tried
> positioning the curser over the student hoping that it might work and
> it did the same thing!
You seem to understand that you cannot use white as a
key color, but if I were doing "experiments" like you are,
I would at least switch inputs so that the camera was on
the A-bus and the key insert on the B-bus. The switcher
may have some sort of preference? But I wouldn't be
surprised if it makes no difference. Nobody keys live
video on white, so the switcher wasn't designed to do it.
Surely you could find some poster paper or something in
some green or blue shades and try them. You could just
put an action figure sitting in front of the blue or green
paper to play with it, you don't really need to tie up a
breathing human for your experiments.
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