[Foto] egy rakas gep korben - mi volt ez?

[Sipos Zoltán]

Hali!

Igazad lehet, ezt olvasható a "Mátrix" site-on arról a jelenetrol, amikor
Neo elhajol a lövedékek elol, a jelenet "megfagy" és ráadásul a kamera is
körbeforog körülötte:

Capturing the Action: Bullet-Time Photography Super slow motion would be
relied on heavily in the stylization of the action scenes in "The Matrix,"
but certain moments in the script called for something special. These scenes
required dynamic camera movement around slow-motion events that approached
12,000 frames per second. The Wachowskis called it "bullet-time
photography."
This "Flow-Mo" process allows filmmakers almost unlimited flexibility in
controlling the speed and movement of on-screen elements. For example, a
fighter leaping into the air to kick his opponent could accelerate to the
apex of his leap, appear to hover in the air, extend his leg in a
lightening-fast movement, and then gently descend to the ground. Joel Silver
describes the process as similar to "full-cel animation, only with people."
The Wachowskis met with JOHN GAETA, the visual-effects director at Manex, a
visual-effects facility in Northern California, to discuss their goals. Says
Gaeta, "The Wachowskis are from the comic-book culture, and are therefore
familiar with the Japanese animation style called anime, which we re-created
with live actors for this movie. Anime takes advantage of 'the physics of
decimation' ­ it breaks down action into its components and allows those
elements to be meticulously controlled to build the most dramatic effect
from dynamic movement."

Gaeta's team and the filmmakers first blocked out the action that was going
to be rendered and filmed the scene using conventional cameras. Then they
scanned the images into a computer and, using a laser-guided tracking
system, "mapped out" the movements of the camera that would capture the
final scene. A series of sophisticated still cameras was placed along the
mapped path, each of which would shoot a single still photo. Then the photos
were scanned into the computer, which created a strip of still images,
similar to animation cels. The computer generated "in-between" drawings of
the images ­ much as animators draw frames to move their characters smoothly
from one pose to another ­ and the completed series of images could be
passed before the viewers' eyes as quickly or slowly as the filmmakers
wanted without losing clarity. Obviously, this painstaking technique takes
time and precision, but it renders moving objects and people in a completely
new way. Says Joel Silver, "It¹s like the Japanese films "Ghost in the
Shell" or "Akira" ­ but ours is a real-life film depiction of anime, whereas
those are animated films. We¹ve used every kind of visual effect utilized
before and taken each one step further." 

Üdv:

Sipos Z.


-----Original Message-----
From: Gôdény Csaba [mailto:gcsaba at finit.hu]
Sent: Friday, November 26, 1999 3:25 PM
To: 'foto at iit.bme.hu'
Subject: RE: [Foto] egy rakas gep korben - mi volt ez?


Legutóbb a Mátrix forgatásánál hallottam ilyet (120 db Canon EOS 5) ott
talán slowmo-nak nevezték és a szuperlassított felvételekhez - melyek közben
a kamera körbejárja a témát - használták. (pl. Neo elhajol a golyók elol,
Trinity kungfuzik, stb.)
A http://www.whatisthematrix.com -on részletes képekkel illusztrált leírás
található.

Pelican