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This filter allows you to create a curve that will be used to distort
the active layer or selection. The distortion is applied gradually
from an image or selection border to the other.
You can find this filter through
→ → .
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Preview
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The preview displays changes to image or selection without
modifying the image until you press OK.
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Preview Once
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This button allows you to update the preview each time you
need it.
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Automatic Preview
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With this option, preview is changed in real time. This
needs much calculation and may lengthen work. It is
particularly evident when using "Rotation".
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Options
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Rotate
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There, you can set the application angle of filter (0-360
counter-clockwise). 0 is default setting: The curve will be
applied from the upper border and/or from the lower. Set to
90, it will be applied from left border and/or from the
right one.
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Smoothing and Antialiasing
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The distort process may create hard and stepped borders.
These two options improve this aspect.
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Work on Copy
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This option creates a new layer called
“Curve_bend_dummy_layer_b” which becomes the
active layer, allowing you to see changes to your
image in normal size without modifying the original image
until you press the OK button.
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Modify Curve
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In this grid, you have a marked horizontal line, with a node at
both ends, which represents by default the upper border of image.
If you click on this curve, a new node appears, that you can drag
to modify the curve as you want. You can create several nodes on
the curve.
You can have only two curves on the grid, one for the so named
"upper" border and the other for the so named "lower" border. You
can activate one of them by checking the
Upper or Lower radio
button.
If you use the Curve Type Free option, the
curve you draw will replace the active curve.
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Curve for Border
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There you can select whether the active curve must be applied to
the Superior (or left) or the
Inferior (or right) border, according to the
rotation.
![[Caution]](images/caution.png)
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Caution |
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Remember that the curve border depends on the rotation. For
example, with Rotate = 90° the upper curve
will actually be applied to the left border.
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Curve Type
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With the Smooth, you get automatically a well
rounded curve when you drag a node.
The Free option allows you to draw a curve
freely. It will replace the active curve.
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Buttons
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Copy
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Copy the active curve to the other border.
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Mirror
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Mirror the active curve to the other border.
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Swap
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Swap the “superior” and
“inferior” curves.
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Reset
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Reset the active curve.
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Open
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Load the curve from a file.
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Save
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Save the curve to a file.
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