Specifications

ptg
210
Introducing Effects
PICTU R E-I N-PICTU R E PARAM ETE RS
The parameters listed here are nearly universal in most vertical effects.
Crop: The Crop parameter is one of the most important parameters in any vertical effect. This
parameter trims information from the top, bottom, left, or right edges of the video image.
Cropping must be used to remove horizontal and vertical blanking (which is part of the video
signal and lies on the outer edges of the video image). Blanking becomes visible when you begin
to resize and layer video in a composite. The amount of cropping required may vary from source
tape to source tape, but some cropping will always be required in SD content.
Here, vertical
blanking is
displayed as a
black edge around
the video frame;
you must crop
blanking away from
vertical effects
Scaling: The Scaling parameters let you change (and animate) the size of the PIP. Values range
from 0 to 400 percent of the size of the image. Fifty percent is the default.
If you scale standard-definition PIPs beyond 150 to 175 percent or scale high-definition PIPs
beyond 250 to 300 percent, you may introduce artifacts into the image. The amount of scaling you
can apply before artifacts appear varies from image to image.
Position: The Position parameters let you set (and animate) the location of the PIP. Values range
from -999 to 999. The default value is 0 and centers the PIP in the middle of the screen. A value
of = +999 or -999 moves the image off the screen in all four directions within the X and Y axes.
Note that you can drag the image directly within the monitor.
Foreground: The Level slider allows you to adjust the opacity of the foreground clip. A value of
100 is opaque; a value of 0 is transparent. The Swap Sources button swaps the foreground and
background used in the effect. You generally should not use this button because it can result in
problems that will be difficult to troubleshoot.
Reverse Animation: The Reverse Animation button reverses the position of all keyframes
within the effect.
Acceleration: The Acceleration parameter allows you to adjust the fluidity of the effect by easing
the effect in and out of every keyframe. It applies to the entire effect and not specific keyframes.
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