Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!rpi!crdgw1!uunet!comp.vuw.ac.nz!am.dsir.govt.nz!dsiramd!marcamd!tcnz2!greg From: greg@tcnz2.tcnz.co.nz (Greg Calkin) Newsgroups: comp.ivideodisc Subject: Re: Questions Message-ID: <473@tcnz2.tcnz.co.nz> Date: 21 Nov 90 05:33:20 GMT References: <9676@jarthur.Claremont.EDU> <39907@ut-emx.uucp> Reply-To: greg@tcnz.co.nz (Greg Calkin) Organization: Thomas Cook NZ Head Office, Auckland, NZ Lines: 19 Another novice question or two 1) How do you handle producing a videodisc to cope with VGA colour and to cope with mono on a MAC, for instance. Are there standard image conversion techniques to allow the production of a IV across a broad range of hardware. 2) If I show a constant frame on screen, how do I store running dialogue without changing the picture. Similarly, can I store a screen then run graphics or text over it without using more than 1 screen picture. 3) Is there a standard gaphics / text primitive language with sound i.e. Show this frame, run this graphics program to highlight screen areas, with this sound track running, all synchronised ? 4) Where do the differences between PAL and NTSC come into things, or do you roll your own format ? Just curious to see how things are in the IV industry. -- Greg Calkin, Systems Engineer and Dreamer (greg@tcnz.co.nz) Thomas Cook N.Z. Limited, PO Box 24, Auckland CPO, New Zealand, Ph (09)-793920 Disclaimer : Would you buy a used car from someone with these opinions ?