To Box Mask a Key

Box masks can be adjusted for size, location, rotation, and multiplication.

  1. Click Navigation Menu > Live Assist > MEs and select the ME and key that you want to set up.
    Tip:
    You can use the same procedure for a MiniME or Canvas. You can use the same procedure for a MiniME.
  2. Click Mask > Box.


  3. Click Mask Force to force the area inside the mask region to the foreground.
    Note:
    Mask Force is not available for Chroma Keys.
  4. Click Mask Invert to invert the masked area with the unmasked area.
  5. Set up the mask as required.
    • Size — adjust the size of the mask region.
    • Left Edge — adjust the position of the left edge of the mask region.
    • Right Edge — adjust the position of the right edge of the mask region.
    • Top Edge — adjust the position of the top edge of the mask region.
    • Bottom Edge — adjust the position of the bottom edge of the mask region.
    • X-Position — position the mask on the x-axis. This adjust both the left and right edges at the same time.
    • Y-Position — position the mask on the y-axis. This adjusts both the top and bottom edges at the same time.
    • Edge Softness — apply softness to the edges of the mask region.
    Tip:
    You can use the Positioner to adjust the size and position of the box mask.