Particle Wind Input Parameters
Parameter Type
Description
The Input parameters for the Particle Wind effect create a transition effect that turns the foreground video into circular particles that blow off to reveal the background video. For more information, see Particle Wind.
Use of Controls
Amount
Sets the progression of the effect. The larger the difference in the Amount value between keyframes, the faster the effect happens.

Size
Sets the radius of the particles.

Spacing
Sets the space between the center of the original position of the particles.
  This parameter is not keyframeable.

Front Speed
Controls whether the particles near the front edge (where the wind first hits) start to move before the particles at the outside edge.

Front Randomness
Allows particles nearest the front to move at different speeds.

Speed
Sets the wind speed.

Speed Randomness
Allows particles anywhere within the effect to move at different speeds, giving a more natural effect.

Acceleration
Controls how quickly a particle reaches the full speed of the wind. The higher the value, the more quickly the particle reaches full speed.

Angle
Sets the source direction of the wind. A value of 0 degrees is three o'clock; positive values move counterclockwise.

Bumpiness
Adds a shadow to the edge of the particles.

Swap Sources
Specifies whether to apply the effect to incoming or outgoing video.
  This parameter is not keyframeable.

Some features described in Help are available only in Avid Xpress Pro or Avid Xpress DV. For more information about Avid Free DV go to
www.avid.com.