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From: campbell@cbmvax.commodore.com (John Campbell - Marketing)
Newsgroups: comp.sys.amiga.multimedia
Subject: Re: AmigaVision--Videodisc Problem
Message-ID: <18285@cbmvax.commodore.com>
Date: 29 Jan 91 22:08:36 GMT
References: <914@vax.cs.athabascau.ca>
Reply-To: campbell@cbmvax.commodore.com (John Campbell - Marketing)
Distribution: na
Organization: Commodore, West Chester, PA
Lines: 42

In article <914@vax.cs.athabascau.ca> bobb@cs.athabascau.ca (Bob Bedecki) writes:
>
>I am attempting to develop an interactive videodisc presentation
>using an Amiga 2000 with a Commodore 1084 monitor, 30 MEG HD, and 
>7 MB Memory, connected to Pioneer 2200 Laserdisc player and a Super
>Gen genlock, and using AmigaVision as the authoring system.     
>
>Here's the problem:  after generating a number of menus and inserting
>the appropriate frame numbers from the videodisc I try to "Present"
>this interactive program.  The results are not what I expected.  The
>movement between the menus works well, but when I attempt to make a
>menu selection that will play a videodisc sequence the menu fades to
>black and then immediately reappears while the videodisc sequence
>plays in the background.  The question is: how can I get the menu or
>graphic to disappear from the screen until the videodisc sequence is
>played and then return after the videodisc sequence is completed?

Perhaps you did not realize that you need to put a blank (color zero)
screen into your flow before the video icon, since effectively you want to 
genlock with a blank screen in this case.  (Depending upon your pallete,
you can normally just put an empty screen icon in the flow to get
the blank screen you need.)

>Maybe AmigaVision requires a two screen setup where the menus appear
>on the Amiga screen and the videodisc sequences appear on a second
>NTSC monitor.  I've tried this two-screen set-up and it works, but I'm
>still hoping that a one-screen set-up will work as well.

NO!!!!!!!!!!  The one screen solution is a key advantage in terms of cost
and ease of use.  Most Mac people I have dealt with are used to a two
screen approach, but clearly a one-screen solution is what the users
generally want.

>Any solution, or even hints or suggestions, would be greatly
>appreciated.  Thanks.

I hope I have helped,

John Campbell
Senior Manager
Software Applications
Commodore