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.

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.

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.