Processing and Formatting Effects > Flame FX > Blur >
Matte Settings

Matte Settings for Gaussian, Defocus, or Box | Matte Settings for Radial or Radial Stamp | Matte Settings for Directional

Matte Width field
  Displays the width of the blur for the matte.
Matte Height field
  Displays the height of the blur for the matte.
Matte Amount field
  Displays the amount of radial blur for the matte.
Matte Rotation field
  Displays the angle of rotation for a radial blur for the matte.
Matte Length field
  Displays the radius amount of a directional blur for the matte.
Matte Angle field
  Displays the angle of a directional blur for the matte.
Lock To Front button
  Enable to keep the matte values the same as their corresponding values for the front clip.
Invert Matte button
  Enable to blur the region outside the area defined by the matte.