Grass Valley Kayenne v.3.0 - Manual (Page 226)

226 KAYENNE — User Manual
Section 3 — System Operation
Clear X-Forms – Sets all transform parameters of the delegated keyer (or
global channel) to Default Keyframe values. The transform parameters
reside in the panels below the data pad delegation matrix and do not
include Crop. Modifiers of other iDPM settings, i.e. Shadow, Kurl, and
Lighting are not affected.
Clear All – Sets all transform parameters and all other menu settings,
including Crop values, of the delegated keyer to Default Keyframe values.
Corner Pinning
Corner Pinning allows you to move the corners of a source image relative
to the background. Corner Pinning is keyframeable, with all standard path
control functions. The new corner locations do not need to form a rectangle.
Corner Pinning is accomplished by distorting the source to fit into its newly
defined corners. The modified image remains in its original source plane,
and is not “bent” along the Z axis. Corner Pinning does not change the loca-
tion of the axis of rotation or spin of the source image (
Figure 149 ).
Figure 149. Corner Pinned Object
Corner Adjust Limits —Corner Pinning works for convex quadrilaterals but not
for concave quadrilaterals. A convex quadrilateral is defined as a four-
sided shape with all angles less than 180 degrees (
Figure 150 ), all vertices
point outwards and all diagonals lie entirely inside the quadrilateral.
Results from adjusting a corner beyond the limits are undefined.
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