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Variable
Gaussian
- Linear Mask
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Variable Gaussian filters allows you to control
the blur power within the frame. You could have the Blur effect appear
only at some image side rather than over the entire image, thus to blur
only the near plane and simulate depth of field effect, blur only the
sky (like on an example below) or other image area.
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Parameters:
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Size
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Controls
the
blur
power. Value of 1.0 sets the maximum blur, but you can enter
in edit field values up to 4.0 and get more blur, but with
a slightly reduced quality.
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Area
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Controls
how
large
the soft area is. Value of 0.0 - no soft area, value of 1.0 - the
whole image.
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Side
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Controls
the
position
of the soft area. It is actually an angle to the blurred area
toward image center. 0-left, 0.25-top, 0.5-right, 0.75-bottom.
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Distribution
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Higher
values
soften the boundary of the blur mask.
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Depth Of
Field
effect example - blur the near plane (down side of the image on this
example) to simulate DOF.
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