S_WarpPolar
Description
Warps the image into a rounded disk shape.
The S_WarpPolar filter comes from the Emmy award winning Boris FX Sapphire filter set.
Category
Lens.
Controls
Presets
To select a preset, pick one from the Presets window.
Angle
Rotation of the result in counterclockwise degrees.
Angle Repeats
The number of copies of the image to wrap around. This should be an integer to avoid a seam where the first copy connects to the last.
Center
The center of the disk.
Stretch X & Y
Scales the horizontal or vertical size of the disk shape.
Inner Radius
The distance from the center where the bottom edge of the image is mapped.
Outer Radius
The distance from the center where the top edge of the image is mapped.
Wrap X & Y
Determines the method for accessing outside the borders of the image.
No
Renders black beyond the borders.
Tile
Repeats a copy of the image.
Reflect
Repeats a mirrored copy. Edges are often less visible with this method.
Filter
If enabled, the image is adaptively filtered when it is resampled. This gives a better quality result when parts of the image are warped smaller.
Crop Input
These 4 parameters, Crop Top, Crop Bottom, Crop Left, and Crop Right, allow selecting a rectangular subsection of the image to be processed. If the Wrap parameters are set to No, the exposed borders will be transparent. If the Wrap is Tile or Reflect, the image is wrapped on the new cropped borders to fill the frame. This can make it easier to avoid artifacts due to distorting an image with bad edges.
Show Angle
Enables/disables the on-screen control for adjusting the Angle parameter.
Show Center
Enables/disables the on-screen control for adjusting the Center parameter.
Show Inner Radius
Enables/disables the on-screen control for adjusting the Inner Radius parameter.
Show Outer Radius
Enables/disables the on-screen control for adjusting the Outer Radius parameter.