This filter is found in
Image>Filters/Distorts/IWarp
This filter allows you to deform interactively some parts of the
image and, thanks to its Animate option, to create the elements
of a fade in/fade out animation between the original image and
the deformed one, that you can play and use in a Web page.
To use it, first select a deform type then click on the Preview
and drag the mouse pointer.
10.5.2.
Settings
Settings
The Settings tab allows you to set parameters which will affect the
preview you are working on. So, you can apply different deform modes
to different parts of the preview.
Preview
Here, the Preview is your work space: You click on the Preview and
drag mouse pointer. The underlying part of image will be deformed
according to the settings you have chosen. If your work is not
convenient, press Reset button.
Deform Mode
Move: Allows you to
stretch parts of the image.
Remove: This remove the distortion
where you drag the mouse pointer, partially or
completely. This allows you to avoid pressing Reset
button, working on the whole image. Be careful when
working on an animation: this option will affect one
frame only.
Grow: This option inflates the
pointed pattern.
Shrink: Self explanatory.
Swirl CCW : Create a vortex counter
clockwise.
Swirl CW : Create a vortex clockwise.
Deform Radius
Defines the radius, in pixels (5-100), of the filter action
circle around the pixel pointed by the mouse.
Deform Amount
Sets how much out of shape your image will be put (0.0-1.0).
Bilinear
This option smoothes the IWarp effect.
Adaptative Supersample
This option renders a better image at the cost of increased
calculation.
Max Depth: FIXME
Threshold: FIXME
Animate
This option allows to generate several intermediate images between
the original image and the final deformation of this image. You
can play this animation thanks to the plugin
Playback
.
Number of Frames
That's the number of images in your animation (2-100). These
frames are stored as layers attached to your image. Use the
XCF format when saving it.
Reverse
This option plays the animation backwards.
Ping-Pong
When the animation ends one way, it goes backwards.
