8
KAYENNE/KARRERA — Release Notes
Version 8.0
About 2D-DPM Edge Pinning
Edge Pinning is the 2D version of Corner Pinning and is designed to work
in conjunction with cropping. Each time Edge Pinning is turned on, the
pinned edges will be adjusted to match the current 2D-DPM crop settings.
After pinning the edges of an image you can crop it to select the exact
portion of the source video to display or, conversely, you can crop the
image and then pin the edges by stretching the image to the target location.
For example, your source video could contain two people, but you may
want to fly the image of only one person. In this case, you could build an
effect, turn on Edge Pinning, use crop mode, and leave the edges at the
defaults. If you now move the crops maintaining the original aspect ratio
(4x3 or 16x9) you can position these crops so that only the desired person is
shown. If the person or the camera moves, you can adjust the user crops to
keep the person centered between the edges of the crops. This will result in
the person being centered in the video and the effect can be flown around
the screen.
Figure 1. Edge Pinned Cropped Object
Note
Toggling Edge Pinning on and off will reset the edges to the current crop
values and change the pinned edges.
Edge Pinning allows you to move the edges of a 2D-DPM source image rel-
ative to the background. Edge Pinning is keyframeable, with all standard
path control functions. Edge Pinning is accomplished by distorting the
source to fit into its newly defined edges. Edge Pinning does not change the
location of the axis of rotation or spin of the source image.
Edge Pinning example: during a basketball game, a camera points at a shot
clock. The 2D-DPM uses Edge Pinning to build a box to contain the clock
and crop adjustments place the clock exactly in the box but the camera is
accidentally moved and the content of the box no longer shows the entire
shot clock. Using Pan and Scan, you can move the camera content to be
shown correctly without moving the edges of the box.
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