Adobe PREMIERE PRO 2, Руководство пользователя, Страница: 342 / 448

ADOBE PREMIERE PRO 2.0
User Guide
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The Alpha Glow effect has the following settings:
Glow slider
Controls how far the color extends from the alpha channel edge. Higher settings produce larger glows
(and can cause very slow processing before playback or export).
Brightness slider
Controls the initial opacity of the glow.
Start Color
Shows the current glow color. Click the swatch to choose another color.
End Color
Lets you add an optional color at the outer edge of the glow.
Fade Out
Specifies whether the colors fade out or stay solid.
Brush Strokes effect
The Brush Strokes effect applies a rough painted look to an image. You can also use this effect to achieve a pointillist
style by setting the length of the brush strokes to 0 and increasing the stroke density. Although you specify the
direction of strokes, they are scattered randomly by a small amount to give a more natural effect. This effect alters
the alpha channel, as well as the color channels; if you have masked out a portion of the image, the brush strokes
“paint” over the edges of the mask.
Brush Strokes effect: Original image (left), after applying the Brush Strokes effect (center), and adjusting Brush Size and Length (right)
Adjust the following controls for the Brush Strokes effect:
Stroke Angle
Specifies the direction in which the strokes are made. The image is effectively shifted in this direction,
which may cause some clipping at the layer boundaries.
Brush Size
Specifies the size of the brush in pixels.
Stroke Length
Indicates the maximum length of each stroke, in pixels. If Stroke Randomness is not 0, the actual
length of any given stroke may be slightly less than this maximum length.
Stroke Density
Higher densities result in overlapping brush strokes and interesting visual effects.
Stroke Randomness
Creates non-uniform strokes. The more randomness, the more the strokes vary from the brush
and stroke settings you’ve specified.
Paint Surface
Specifies where brush strokes are applied:
•
Paint On Original Image
Puts the strokes on top of the unmodified clip. This is the default setting.
•
Paint On Transparent
Causes only the strokes themselves to appear, leaving the clip transparent between the
strokes.
•
Paint On White/Paint On Black
Let you apply your strokes over a white or black background.
Blend With Original
Specifies the percentage of effect applied—the higher you set this value, the more of the original
clip you can see in the background. For example, if you set this value to 50%, 50% of the original clip shows through
the effect; if you set this value to 100%, the effect has no affect on the clip. If you want to create an affect of a
rainstorm, set this value to about 50%.