GRASS VALLEY Kayenne XL Package, User Manual

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Kayenne XL Package — User Manual 61
3-D Digital Effects Concepts
Skew
Slanting the picture in the X (horizontal) and Y (vertical) directions
(
Figure 24 ).
Perspective
Changing the viewer’s apparent viewpoint of a picture. This only applies
when a picture is tilted so part of it is farther from the viewer.
The farther portion appears smaller than the closer portion, and the
amount of perspective controls how much smaller the distant part is
(
Figure 24 on page 60 ). Multi-channel perspective is discussed later in this
section.
Axis Location
The axis location of the channel determines the center point of translations,
spins, and rotations for that channel. You can move the axis to a new loca-
tion to change the behavior of that channel. The axis location can be within
or outside the screen area.
Z Axis Rotation at Different Axis Locations
Figure 25. Frame of Reference Axis Locations
Source and Target Space
The Kayenne XL Package Digital Picture Manipulator uses source and
target space frames of reference.
• Source space for a control channel uses that channel’s coordinate

system for reference.
• Target space for a channel uses the next higher level’s coordinate

system for reference.
0865_08
Y
Z
X
Axis at
Center of Picture
Z Axis Rotation at
Different Axis Locations
Y
Z
X
Axis Off
Center of Picture
X
Y
Z
Axis Off Screen