Graphics Reference
In-Depth Information
CHAPTER 7
7.1 Overview
According to
THE VES HANDBOOK OF VISUAL EFFECTS
(Focal Press,
2010), “visual effects” is imagery “that cannot be captured using standard
photographic techniques.” In both 2D and 3D, visual effects teams create
imagery that integrates into the temporal and spatial world of the corresponding
live action portion of the show.
In this topic “visual effects” includes graphics, captions, subtitles, as well as
computer-generated (CG) objects, characters and environments. Like their
counterparts in the other workl ows, 3D Visual Effects teams aim to generate
the best imagery possible using the resources available. While a detailed
explanation of 3D visual effects techniques is outside the scope of this topic,
we can introduce distinctions that can help you determine the best course
of action for your show in terms of both planned visual effects shots and
unplanned “i x-it” shots.
Depending on your show, your visual effects work may not require a
completely separate workl ow. Others can be resolved within the editorial,
depth, geometry or color workl ows. Aside from errors in the actual CG itself,
the majority of 3D visual effects issues stem from mismatches between live
action and CG in terms of geometry, depth or color. Even shows without
extensive CG will probably need to address graphics for opening titles and
end credits, subtitles, captions, lower-thirds. Graphics, like all elements in a
3D scene, must exist in and move within Z-Space without interfering with
other elements in the scene.
There is a sense in which we can consider Visual Effects as being a workl ow
which itself is made up of workl ows—visual effects has color, depth,
geometry, editorial and managing components. For some shows, visual effects
are handled by one or more vendors or facilities.
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