To Apply a Hard Trail to a Key

  1. Press BORDER on the Effects Keyer module.
  2. Press Mode and use the Border Mode knob to select Trails.
  3. Use the Trails Mode knob to select Hard.
  4. Press Decay/Threshold and use the Decay Rate, Luma Thresh, and Luma Range knobs to adjust the key trail.
    Tip: Use the luma threshold to select the part of the video that you don’t want trails applied to, the background for example. Use the luma range to adjust for variations in the background that you don’t want trails applied to.
    • Decay Rate — adjust the amount that the trail fades each frame. If the decay rate is set to 0.1%, the trail decays very slowly, and the image becomes static. If the decay rate is set to 0.0%, no trail is created.
    • Luma Thresh — adjust for the parts of the video that trails are applied to. Pixels that are brighter or darker than the Luma Thresh, and not within the Luma Range, are used for creating trails. If the luma threshold is set to 0.0% (black) only the brightest pixels are used for creating trails.
    • Luma Range — adjust the range of the brightness around the Luma Threshold that is not used for creating trails. If the luma range is set to 100%, no trail is created.