Sharing Dve Resources - Blackmagic Design Atem Mini Installationsanleitung

Gain The gain adjustment electronically modifies the angle between on and off thereby
softening the edges of the key. Adjust the gain value until the edge softness is
desirable but the background video luminance (brightness) is not affected.
Inverse When the key is not pre multiplied, inverts the key signal.

Sharing DVE Resources

ATEM features a DVE channel which can be used to perform DVE transitions or used in an
upstream keyer. When you select a DVE transition, if the DVE is used elsewhere in the system,
the DVE transition type will not be available and a DVE unavailable message will be displayed.
In order to use the DVE transition you must free the DVE from where it is currently used. Verify
that the upstream keys currently on program or preview are not DVE keys and do not have
flying key enabled. To free DVE from the upstream keyer, change the key type to anything
other than DVE or disable flying key. The DVE will be released and therefore available for use
as a DVE transition.
The logo wipe transition is a popular transition that uses the DVE and moves a graphic across
the screen over a background transition. For example, the logo wipe moves a graphic over
a horizontal wipe, essentially replacing the wipe border. A logo mix spins the graphic across the
screen over a mix transition. Logo transitions are perfect for wiping the station logo or spinning
a football across the screen revealing a new background. Logo transitions use a special
keyer built into the transition block, leaving all of the upstream and downstream keyers
available for compositing the output.
The following section explains how to build and perform logo transitions.
The above image sequence provides an example of the program output for a graphic wipe transition.
Performing a Graphic Transition
To perform a graphic transition on the ATEM 1 M/E Advanced Panel:
1 Press the DVE transition type button in the transition control block. The DVE settings menu
will appear on the LCD.
If the DVE is already being used in an upstream key, the DVE transition type will not be
available for selection until the key is taken off air and off next transition. Refer to 'sharing
DVE resources' later in this section for more information.
2 Press the 'effect' soft button in the LCD menu to open the effect settings, and set the effect
to a graphic wipe by selecting the graphic wipe icon using the 'effect' soft control knob.
The default direction is left to right, but you can change the direction by selecting 'reverse
direction'. You can also enable 'flip flop' which will let the effect move forwards and
backwards with each performance of the transition, rather than repeating the same
movement direction.
3 Press the right arrow in the system control buttons to adjust the key settings. Enable the
key, and select the fill and key source. If you need to make adjustments to the key, for
example adjusting clip and gain settings, press the right arrow in the system control buttons
to access the key parameters.
Performing Transitions using ATEM 1 M/E Advanced Panel 175