Transforms In Three-Dimensional Space (Transforms) - Sony MVS-8000X User Manual

There are two types of interfaces available for connecting
DMEs to the switcher: a dedicated interface and an SDI
interface.
For details, see "Setting the Interface Between the DME
and the Switcher" (page 455).
Note
When using an SDI interface, the following operations are
different from using a dedicated interface.
• Setting the input signals from the switcher to the MVE-
9000 (AUX bus outputs), and signals returned to the
switcher (re-entry inputs).
For details, see "Setting AUX Bus Outputs and Re-entry
Inputs" (page 455).
• Combiner channels are selected not on the control panel,
but in the Global Effect menu.
For details, see "Combine operation when using an SDI
interface" (page 279).
Transforms in Three-Dimensional
Space (Transforms)
A transform is the process of a DME placing a video image
in a three-dimensional space and subjecting it to
manipulation, such as movement, rotation, magnification,
or shrinking.
Three-dimensional space
Source space and target space
Images are placed in one of two types of space: source
space and target space.
• Source space is a three-dimensional space using the
image itself for reference. The X- and Y-axes are defined
along the plane of the image, and the Z-axis is defined
perpendicular to the plane of the image. When you move
the image, the coordinate axes also move.
• Target space is a three-dimensional space using the
output monitor screen for reference. The X- and Y-axes
are defined as the horizontal and vertical to the plane of
the monitor screen, and the Z-axis is defined
perpendicular to the plane of the monitor screen. The
coordinates do not change even if the image moves.
Source space Target space
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For example, as shown in the following figure, the image
moves in a different direction when you move it along the
X-axis of source space and along the X-axis of target
space.
Source space
Local space and global space
The coordinates of an individual DME channel are called
its local space. The coordinates common to all channels are
called the global space.
By switching from local to global space, you can add new
movement to the movement of images in individual
channels, and also apply transform effects to multiple
channels that have been combined using global effects (see
page 277).
Rotation around Y-axis in local space
Rotation around Y-axis in global space
Three-dimensional parameters
Three-dimensional parameters are X, Y, and Z values
which define the position of an image, its axis of rotation,
the position of the virtual viewpoint of the image, and so
on.
The standard values of parameters are as follows,
depending on the aspect ratio of the monitor (4:3 or 16:9).
Values for 4:3 mode
• Origin at center of image (source space) or center of
monitor (target space)
X = 0.00, Y = 0.00, Z = 0.00
• Upper right corner of image or monitor
When using SD format signals: X = 4.00, Y = 3.00, Z =
0.00
When using HD format signals: X = 12.00, Y = 9.00, Z
= 0.00
Target space