Once upon a time, movies were projected
at 16 FPS (frames per second) and each frame was flashed three times,
for a total of 48 flickers per second. At 48 or better FPS you get
so-called "flicker fusion", and the viewer does not
perceive the light going on and off. It looks continuous to him/her.
Then, as time passed, we moved to 24
FPS (double flashed). This had a variety of advantages and this is
the reason that when you see old movies they appear to be running
around like mad, they were designed to be projected at 16 FPS, not
24.
But although movies seemed to stay at
24 FPS (and then video at 30 frames, or 60 fields per second), in
fact there was an arm of the entertainment industry that always
played with the frame rate. This is the world of "special
venue" which includes theme parks and world fairs. The special
venue people experimented with everything from 30 FPS to as fast as
they could get film through a projector. Showscan is famously a
company that Doug Trumbull and partners started after doing
experiments which they believed told them that 60 FPS was the optimal
rate for human perception.
So now that Jim Cameron and Peter
Jackson want to play with a faster frame rate, everyone and their
brother is running around with their heads cut off wondering what
they are going to do. Well, I am here to tell you what was learned
from Special Venue and suggest you talk to some of the players in
more detail.
The major results were this (or this is how it seemed to me, from my very limited view point, obviously not having access to the inner thoughts of major players, but nevertheless...):
1. Yes, a faster frame rate can help,
especially with fast action, exactly like you imagine.
2. But not all scenes or topics benefit
equally from this technique. In some scenes, slow moving mood
pieces, for example, it may even be counterproductive, because more
information is not always better.
3. The other thing to realize is that
when you change the frame rate you change many, many things with it.
You change how you light things, how makeup works, what kind of
actors and actresses you cast. The reasons for this will be obvious
after you shoot your first tests, and what you do about it is to be
determined. But do not think that you merely increase the frame rate
and now action scenes just look better. That isnt how this works.
4. Some people find the increased frame
rate annoying. I know that my own response to it was that it was
amusing for a few minutes but I wasn't sure how I was going to like
watching 90 minutes of something like this.
Here is an image of Dr. Emilio Lizardo
watching a high frame rate test in Buckaroo Banzai.
5. You will hear people say that an
increased frame rate makes things look like video. It certainly
does for me.
I want to encourage anyone involved in
this matter to pick up the phone and call some people you know in the
world of special venue. There is a weird overlap between special
venue and motion pictures, some people go back and forth between the
worlds, some people stay in their own world. But I would certainly
begin by talking to Douglas Trumbull, his partner Richard Yuricich
(you can reach both of them throught the ASC) and probably someone
involved with the work at Imagineering. (I do not know who that
would be, but I am as certain as I can be that there is someone there
who has done a lot of work with this).
A separate topic is whether the digital
projectors really have the bandwidth to do this. My feeling is that
the answer depends on which projectors we are talking about.
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