Re: VOC, this is what happens, what do I need to do?

[jefbla@bconnex.net (Jeff Blakeney)]

On 26 Oct 1997 17:31:57 GMT, itsme <quantum@telis.org> wrote:

>OK, there is an RGB connector, and a video in and out connector (on the 
>side of the computer closest to the back)

These are the the connectors for the VOC I presume.

>I plug a IIe into the Video IN.  This is for my video source.  It is 
>powered on and everything.

Where is the VOC?  Is it in the IIe that you are using for your video
source or is it in another machine?

>The video out goes to a color monitor.

This is the composite video out I presume.

>Now, I run the videomix program from the IIgs, and try to make 
>adjustments.

Ah, so I take it that the VOC is in the IIgs.  Which VideoMix software
are you running, the 8 bit version or the NDA?

>The best that I have got is the IIe screen, overlayed by a bunch of 
>garbage graphics.

Well you seem to have the video source hooked up okay but have you
cleared or loaded any images into the IIgs' Super Hi-Res display
memory?

>Can someone please give me step by step instructions on how to 
>
>1) hook up source video, video to be overlayed

You seem to have the hook up source video working already.  Just plug
the composite video out of your video source to the video in connector
on the VOC.

But keep in mind that the video from the source video is not the image
that gets overlaid onto another signal.  The VOC will take whatever is
being displayed on your IIgs and overlay that image onto whatever
video is coming into the video in connector.  In your case, it means
that whatever is being display by the IIgs will be overlaid overtop
whatever is being displayed by the IIe.

>2) overlay the video onto a source video signal, and view the overlayed 
>image.

What effect are you trying to achieve?  Using a IIe as a video source
says to me that you might be trying to share a monitor between the IIe
and IIgs.  If this is the case then to view the IIgs display, select
the "Video/Graphics Mix" option in VideoMix and set both the Key and
Non-Key sliders to Graphic.  To view the IIe display, set both the Key
and Non-Key sliders to Video.

If you are trying to overlay a computer image onto a video source it
is a little more complicated because you can get so many different
effects.  Basically you just load whatever image you want and get it
displayed by your IIgs after you have set what colour you want to be
the key colour and set the sliders to the desired levels. 

Just experiment but if you need a specific example, let me know and I
can e-mail you more information.