Relays allow video from one layer, viewport or mix to be sent to other layers as a source on the same machine.

To access relays, select the relay icon in the Source of the desired layer:

Relay Select is an integer pin which is populated based on how many relay sources are present on the machine.

The order of the Relay select pin is:

  • 0 – Disabled
  • Mixes
  • Viewports
  • Layers – increasing by mix and layer number. (Mix 1: Layer1 then Mix1: Layer2 etc.)

Relays are located after the media player and effects, but before colour geometry and the layer level in the render chain. Meaning a relay will convey clip information and effects but ignore colour, geometry and layer level.

Common uses for Relays:

  • Adding Effects to a Layer
    1. On Layer 1, leave the level down and play a clip
    2. On Layer 2, set the Layer source to relay from Layer 1 and put the level up.
    3. Use Layer 1’s media select and effects
    4. Use Layer 2’s Geometry, colour, level and effects.
  • Sending a whole mix to a Pixelmapping mix
    1. Start 2 Mixes, using one to output to the Pixelmapper only and the other outputting video to screen
    2. Set Layer 1 on the Pixelmapper mixes to relay from Mix the Mix Master of the output mix.
    3. Pixelmapper will now exactly follow the output and corrections can be applied to pixel mapper (Geometry, Colour, Level etc.)
  • Multiple Inputs into SHAPE
    1. Patch SHAPE
    2. Navigate to the Viewports page of Zookeeper and click the SHAPE viewport
    3. Inputs 2-8 of SHAPE are relays and can be changed in real time.


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