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272
Adobe Premiere Pro Help
Applying Effects
Using Help
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Contents
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272
Branch Angle
Specifies the size of the angle between a branch and the main lightning
bolt.
Branch Seg. Length
Specifies the length of each branch segment as a fraction of the
average length of the segments in the lightning bolt.
Branch Segments
Specifies the maximum number of segments for each branch. To
produce long branches, specify higher values for both the branch segment length and the
branch segments.
Branch Width
Specifies the average width of each branch as a fraction of the width of
the lightning bolt.
Adjust the following controls for the Lightning effect:
Speed
Specifies how fast the lightning bolt undulates.
Stability
Determines how closely the lightning undulates along the line defined by the
start and end points. Lower values keep the lightning bolt close to the line; higher values
create significant bouncing. Use Stability with Pull Force to simulate a Jacob’s Ladder
effect and cause the lightning bolt to snap back to a position along the start line after it
has been pulled in the Pull Force direction. A Stability value that is too low does not allow
the lightning to be stretched into an arc before it snaps back; a value that is too high lets
the lightning bolt bounce around.
Fixed Endpoint
Determines whether the end point of the lightning bolt remains fixed in
place. If this control is not selected, the end of the bolt undulates around the end point.
Width, Width Variation
Specify the width of the main lightning bolt and how much the
width of different segments can vary. Width changes are randomized. A value of 0
produces no width changes; a value of 1 produces the maximum width changes.
Core Width
Specifies the width of the inner glow, as specified by the Inside Color value.
The Core Width is relative to the total width of the lightning bolt.
Outside Color, Inside Color
Specify the colors used for the lightning bolt’s outer and
inner glows. Because the Lightning effect adds these colors on top of existing colors in the
composition, primary colors often produce the best results. Bright colors often become
much lighter, sometimes becoming white, depending on the brightness of colors
beneath.
Pull Force, Pull Direction
Specify the strength and direction of a force that pulls the
lightning bolt. Use the Pull Force control with the Stability control to create a Jacob’s
Ladder appearance.
Random Seed
Specifies a starting point for randomizing the lightning effects you have
specified. Because random movement of the lightning may interfere with another image
or layer, typing another value for the Random Seed starts the randomizing at a different
point, changing the movement of the lightning bolt.
Blending Mode
Specifies how the lightning is added to the layer.
Rerun at Each Frame
Controls the frame-by-frame generation of the lightning. Selecting
this control regenerates the lightning at each frame. To make the lightning behave the
same way at the same frame every time you run it, do not select this control. Selecting this
control may increase rendering time.
