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PresentationPRO-II • User’s Guide 7
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System Overview
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.
Figure 1-3. Layer Illustration — Background, Mixer and DSK
Please note the following important points:
• 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.
Wilderness
Background (Matte)
PIP
DSK