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.
Using Help | Contents | Index Back 273
Adobe Premiere Pro Help Applying Effects
Using Help | Contents | Index Back 273
Luma Key
The Luma Key effect removes all the regions of a clip that have a specified luminance or
brightness. The clip’s quality setting does not influence the Luma Key effect.
When the object from which you want to create a matte has a markedly different
luminance value than its background, you can make the background value transparent by
keying it out. For example, if you want to create a matte for musical notes on a white
background, you can key out the brighter values; the dark musical notes become the only
opaque area.
Median
The Median effect replaces each pixel with the median pixel value of neighboring pixels
within a given radius. At low values, this effect reduces noise. At higher values, this effect
gives a clip a painterly effect.
Radius
Specifies how many pixels to examine for the Median effect. For instance, when
Radius is set to 1, the Median will be performed on the eight neighboring pixels that are
within one pixel of the center pixel.
Operate on Alpha Channel
Applies the effect to the alpha channel of the clip.
Mirror
The Mirror effect splits the image along a line and reflects one side onto the other. The
reflection angle determines which side is reflected and where the reflection appears. You
can make the line and reflection angle change over time.
Reflection Center
Specifies the position of the line. Click the box and drag the resulting
cross hair to the spot in the image where you want to place the line.
Reflection Angle
Specifies the angle of reflection, and therefore where the reflection
appears on the clip. An angle of 0° reflects the left side on the right. An angle of 180°
reflects the right side on the left. An angle of 90° reflects the top on the bottom. An angle
of 270° reflects the bottom on the top.
Mosaic
The Mosaic effect fills a layer with solid color rectangles. It is useful for creating a highly
pixelated image.
Horizontal/Vertical Blocks
Specifies the number of mosaic divisions in each direction.
Sharp Colors
Gives each tile the color of the pixel in its center in the unaffected clip.
Otherwise, the tiles are given the average color of the corresponding region in the
unaffected clip.
Multiply Key
The Multiple Key effect multiplies the color values in a clip image with the underlying clip,
and divides the result by 255 (the maximum pixel value of 8-bit pixels). The resulting color
is never brighter than the original.
Noise
The Noise effect randomly changes pixel values throughout the image.
Amount of Noise
Specifies the amount of noise, and therefore the amount of distortion,
through random displacement of the pixels. The range is 0% (no effect) to 100% (the
