GRASS VALLEY zodiak, User Manual

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276 Zodiak User Manual
Section 4 — Menus Overview
The transform controls are organized on the menu according to Source and
Target space capabilities. See
3-D Digital Effects Concepts on page 76 for
background information about 3-D image controls, including Source and
Target space. Note that some parameters intrinsically apply to either
Source or Target space, and have no meaning in the other space. Size and
aspect for example apply only to the Source space. Perspective applies to
the projection of the transformed image on the TV screen and has no
meaning in Source space.
The
Locate
,
Loc Axis
,
Target Rot
, and
Spin
transforms can be assigned to work
in either source or target space with the touch buttons at the left of their
pane. Selecting the
Source
button provides image adjustment using that
channel’s coordinate system for reference. Selecting the
Target
button pro-
vides image adjustment using the screen as the reference. Only one space
button is selectable at a time.
Note Target Rot displays only Target Rotate transform parameter values, even
when Source space is selected. The soft knobs still adjust either the Target or
Source space rotation parameters, however.
The
Skew
and
Aspect
transforms work in Source space.
The
Persp.
,
Post Xform
, and
Final Locate
buttons work in Target space.
Crop Controls
The
Crop
button in the pane to the right of the Transform buttons is used to
activate the crop feature for the delegated keyer (this button is inactive for
Global channels). The Crop Edge data pad delegates the soft knobs to
control each side’s cropping, while the Crop Soft data pad delegates edge
softness control.
Reverse Controls
The Reverse controls are located to the right of the Crop pane. The front
and back sides of the Transform Engine picture can be reversed vertically
and/or horizontally with these controls.
Path Controls
The path control pane is located to the right of the data pad delegation
matrix.
S Linear
,
Linear
, and
Curve
interpolation touch buttons are available.
When
Curve
is selected, soft knob controls for
Tension
,
Continuity
, and
Bias
soft
knob become available. You can also turn off transform interpolation and
hold each keyframe’s values with the
Path Hold
touch button. See Path
Control on page 84 for an explanation of path controls.