Graphics Reference
In-Depth Information
really mean here is: Does the imagery cause unwelcome and/or unexpected
sensations in your eyes, head or elsewhere in your body? The reason comfort
is an issue is that we typically do not expect visual imagery to make us
feel ill. Without getting into detailed scientii c and medical explanations 3D
imagery makes more demands on the visual system than 2D imagery.
Fundamentally, however, there should be no reason watching 3D imagery
should be any more or less comfortable or sickness-inducing than watching
2D imagery. The problem comes when 3D imagery is technically incorrect.
Technically incorrect 3D can and does cause physical discomfort including
feelings of nausea, headache and eyestrain.
This begs the question: Who decides which 3D imagery is comfortable and
which is uncomfortable? The easy answer might be “the stereographer does.”
In indie productions the person in the stereography role may also be the
i lmmaker, the DP, the producer or the director. Comfort is a subjective and
relative matter. Who determines what is comfortable is based on who is on
your team and what kind of show you are making.
“The thing about 3D post is that you can get there so many different
ways. That's the beauty of what we do. You and I could be in
separate rooms using completely different toolsets and people
might like both of the results.”
—Don Wilson
1.2.3 Continuity
When we use the word “continuity” in this topic, we are talking much
more than whether an actor has a spoon in the correct hand from one
scene to the next. In the context of 3D, continuity involves the sense that
we sometimes have of being “taken out” of a show. There is a break in the
story, a discontinuity that causes us to step out of the l ow of the visual
story. Something in or about the imagery (as opposed to the story the
imagery conveys) interrupts our suspension of disbelief, our connection to
the world of the story. For our purposes, continuity is dei ned as “the ability
to keep the audience or viewer within the intended story or experience
of the show.”
Continuity is a concern in 2D shows as well as 3D shows. However, it
is a more important consideration in 3D because there are more chances
to create visual discontinuity. If you as a viewer think about something
 
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