Barco PresentationPRO-II User Manual page 19

A layer is defined as an image display element (such as a background, PIP or Key) with an
associated visual priority. The mixer itself has one layer, which can be assigned to either
PIP or Key functionality.
A typical PresentationPRO-II application is illustrated below.
Background (Matte)
PIP
Figure 1-3. Layer Illustration — Background, Mixer and DSK
Please note the following important points:
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PresentationPRO-II • User's Guide
DSK
The full screen LOGO is the highest priority layer. This image visually appears
"over" all other layers.
The Downstream Key (DSK) is the second highest priority layer. It visually
appears over the mixer and the background — but it is "under" the LOGO.
The high resolution Background is the lowest priority layer, which appears
"behind" all other layers.
Within the mixer, a PIP appears "over" the background and "under" the DSK and
LOGO. Effects include mixes, wipes, resizing, adjustable aspect ratio, borders,
drop shadows and soft edges.
Within the mixer, a Key also appears "over" the background and "under" the DSK
and LOGO. Effects include luminance key, reverse (invert) key, and color key
(graphics).
Up to eight analog inputs and one SD-SDI or HD-SDI input can be scaled to
produce PIP or Key effects.
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System Overview
7