Справочник Пользователя для Adobe CS5, UPG, Mac, DVD, ENG 65053333
Модели
65053333
4
Adobe After Effects CS5
What’s New
Roto Brush
Many shots require separating a foreground object—such as an actor—from its current live action
background so that the object may be placed in a completely new environment. The revolutionary
new Roto Brush provides a fast, efficient solution for isolating these foreground elements in
complex scenes . In the past, this kind of work was time-consuming and expensive, and as a result,
the technique was often reserved for big-budget projects. The new Roto Brush is so fast that After
Effects artists can now perform rotoscoping on virtually any project—from previsualization to
final composites—with greatly reduced concern about project budgets or deadlines.
background so that the object may be placed in a completely new environment. The revolutionary
new Roto Brush provides a fast, efficient solution for isolating these foreground elements in
complex scenes . In the past, this kind of work was time-consuming and expensive, and as a result,
the technique was often reserved for big-budget projects. The new Roto Brush is so fast that After
Effects artists can now perform rotoscoping on virtually any project—from previsualization to
final composites—with greatly reduced concern about project budgets or deadlines.
To use the new Roto Brush, just draw simple paint strokes inside the foreground object, and let
After Effects calculate where the rest of the foreground object is. If the foreground and background
are similar, you can draw additional paint strokes to teach After Effects which elements are in the
background. After Effects determines where the foreground and background are on subsequent
frames; you can refine results with additional strokes. The process is fast and intuitive—and
because After Effects does the hard work of finding the edges, Roto Brush eliminates the tedium
traditionally associated with the task.
After Effects calculate where the rest of the foreground object is. If the foreground and background
are similar, you can draw additional paint strokes to teach After Effects which elements are in the
background. After Effects determines where the foreground and background are on subsequent
frames; you can refine results with additional strokes. The process is fast and intuitive—and
because After Effects does the hard work of finding the edges, Roto Brush eliminates the tedium
traditionally associated with the task.
Once you’ve defined the foreground and background areas, you can control the quality of the
edges between the two using options for smoothing, feathering, or choking (spreading inside
or outside of the original edge). After Effects can calculate motion blur for fast-moving portions
of the edge to deliver photo-realistic, professional results with minimal effort. “Edge chatter”
from frame to frame is automatically reduced, and in addition you can remove background color
from semitransparent edges of the foreground object. And if the resulting alpha channel still
requires additional refinement, you can use the paint tools already built into After Effects to
further tweak your results.
edges between the two using options for smoothing, feathering, or choking (spreading inside
or outside of the original edge). After Effects can calculate motion blur for fast-moving portions
of the edge to deliver photo-realistic, professional results with minimal effort. “Edge chatter”
from frame to frame is automatically reduced, and in addition you can remove background color
from semitransparent edges of the foreground object. And if the resulting alpha channel still
requires additional refinement, you can use the paint tools already built into After Effects to
further tweak your results.
The revolutionary new Roto Brush
enables you to separate foreground
elements from complex backgrounds in
a fraction of the time it would take using
traditional rotoscoping techniques.
Teach it how to process one frame, and
Roto Brush automatically tracks the
footage and applies the same criteria
across multiple frames.
enables you to separate foreground
elements from complex backgrounds in
a fraction of the time it would take using
traditional rotoscoping techniques.
Teach it how to process one frame, and
Roto Brush automatically tracks the
footage and applies the same criteria
across multiple frames.
The Roto Brush expands your creative options by enabling you to offer results that require
sophisticated rotoscoping—on virtually any project. Professional-quality results can be realized
dramatically faster and with far less tedium: artists are already reporting that the process of
rotoscoping is taking a fraction of the time it required in the past. This means you can accomplish
creative treatments that previously were feasible exclusively on big-budget projects—from
isolating elements for targeted color enhancement to placing design elements such as text or
logos between actors and their backgrounds.
sophisticated rotoscoping—on virtually any project. Professional-quality results can be realized
dramatically faster and with far less tedium: artists are already reporting that the process of
rotoscoping is taking a fraction of the time it required in the past. This means you can accomplish
creative treatments that previously were feasible exclusively on big-budget projects—from
isolating elements for targeted color enhancement to placing design elements such as text or
logos between actors and their backgrounds.