Re: Changing the frequency of games to sync to movie cameras...

From: Christopher X. Candreva <chris_at_westnet.com>
Date: Sun May 03 2009 - 06:04:29 EDT

On Sat, 2 May 2009, John Robertson wrote:

> Film cameras work at 24 frames/second, whereas video games are 30/second. I
> should be able to change the clock crystal to reduce the speed to 24 frames,
> but will the game play speed seem that much slower - I suspect it will.

I don't think it's that simple. I don't know how raster video out works, so
I'm not sure if just changing a crystal will change the sync. However, the
monitor itself in all likelyhood won't sync at 24hz, based on what a big
deal it was when NEC introducted the MultiSync monitor.

I seem to recall this being a problem for a long time, and why so many
movies featured Vector games. (Then again, WarGames did solve this problem
at least for Galaga).

Today, it may be easier to rig up MAME running with the scanlines effect on
an LCD monitor inside the cab.

==========================================================
Chris Candreva -- chris@westnet.com -- (914) 948-3162
WestNet Internet Services of Westchester
http://www.westnet.com/
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Received on Sun May 3 06:04:31 2009

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