GRASS VALLEY GV KORONA, User Manual, Page: 104 / 415

Video Mix/Effects
Slits Mode
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Slits Mode
• Aspect—stretches the ripple horizontally or vertically.
• H/V Angle—adjusts the angle of the ripple, horizontally and vertically.
Slits is an effect in which the source video is split into a number of parallel slits. The width of
the slits may be uniform or random, and an angle may be specified. An offset function is
provided which controls the amount of displacement of alternating slits in opposite
directions (to cause a transition type effect).
Select the Slits Kurl Mode button to access the slits controls.
The Slits modulation soft knob controls and wave patterns are the same as Position/Size.
Selecting the Slits Controls data pad changes the Kurl menu to display Slits controls:
• Offset—sets the distance adjoining slits move away from each other. This can be used
for transition effects, using a zero offset for the starting keyframe and an off the screen
offset for the ending keyframe.
• # of Slits—defines the number of slits.
• Phase—determines the starting point or phase of the modulation to occur at the
center point.
• Random—defines the degree of randomization of slit width.
• Angle—defines the angle of the slits with respect to the source X and Y axes.
Sphere Mode
Sphere is an effect in which the source video is mapped to the surface of a sphere. Controls
are provided which change the aspect and size of the sphere, the point in source video to
be mapped to the center of the front surface of the sphere, and the horizontal and vertical
scaling of the source video to be mapped.
Select the Sphere Kurl Mode button to access the sphere controls.
The following soft knob controls are available:
• Size—defines the radius of the sphere before it is modified by Aspect.
• Aspect—scales the horizontal and vertical dimensions of the sphere.
When the Position/Wrap data pad is selected in the Sphere pane, the following soft knob
controls are available:
• Horizontal Position—controls where the image is mapped onto the sphere by moving
the image horizontally on the sphere’s surface.
• Horizontal Wrap—controls how much of the image is mapped onto the sphere by
compressing or stretching the image horizontally.
• Vertical Position—controls where the image is mapped onto the sphere by moving the
image vertically on the sphere’s surface.
• Vertical Wrap—controls how much of the image is mapped onto the sphere by
compressing or stretching the image vertically.