S_WarpPolar Warps the source clip into a rounded disk shape. The vertical direction of the source image is mapped between the Inner Radius and Outer Radius, and the horizontal direction is rotated about the center based on the number of Angle Repeats and offset by Angle. In the Sapphire Distort effects submenu. Inputs: Source:  The current layer.   The input clip to be warped. Matte:  Defaults to None.   If provided, the amplitude of warping is scaled by the values of this input clip. Gray values internally scale the warping amplitude rather than simply cross-fading between the effect and the original source to allow more continuous results at the matte edges and more detailed control over the warping amounts. This input can be affected using the Blur Matte, Invert Matte, or Matte Use parameters.

Parameters:

Angle:   Default: 0,  Range: any.
Rotation of the result, in degrees.

Angle Repeats:   Default: 1,  Range: 0.01 or greater.
The number of copies of the source image to wrap around. This should be an integer to avoid a seam where the first copy connects to the last.

Center:   X & Y,   Default: [360 243],  Range: any.
The center of the disk, in screen coordinates relative to the center of the frame.

Stretch:   X & Y,   Default: [1 1],  Range: 0.01 or greater.
Scales the horizontal or vertical size of the disk shape.

Inner Radius:   Default: 10,  Range: any.
The distance from the center where the bottom edge of the source clip is mapped.

Outer Radius:   Default: 300,  Range: any.
The distance from the center where the top edge of the input clip is mapped.

Wrap:   X & Y,  Popup menu,  Default: [Tile No].
Determines the method for accessing outside the borders of the source image.

No:  gives 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:   Check-box,  Default: on.
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.

Blur Matte:   Default: 0,  Range: 0 or greater.
Blurs the Matte input by this amount before using. This can provide a smoother transition between the matted and unmatted areas. It has no effect unless the Matte input is provided.

Invert Matte:   Check-box,  Default: off.
If on, inverts the Matte input so the effect is applied to areas where the Matte is black instead of white. This has no effect unless the Matte input is provided.

Matte Use:   Popup menu,  Default: Luma.
Determines how the Matte input channels are used to make a monochrome matte.

Luma:  the luminance of the RGB channels is used.

Alpha:  only the Alpha channel is used.

Opacity:   Popup menu,  Default: Normal.
Determines the method used for dealing with opacity/transparency.

All Opaque:  Use this option to render slightly faster when the input image is fully opaque with no transparency (alpha=1).

Normal:  Process opacity normally.

As Premult:  Process as if the image is already in premultiplied form (colors have been scaled by opacity). This option also renders slightly faster than Normal mode, but the results will also be in premultiplied form, which is sometimes less correct. If your image has sharp color changes where the matte channel also has sharp edges, you may get better results with Normal mode.

Show Angle: Check-box, Default: off.
Turns on or off the screen user interface for adjusting the Opacity parameter.This parameter only appears on AE and Premiere, where on-screen widgets are supported.

Show Inner Radius: Check-box, Default: off.
Turns on or off the screen user interface for adjusting the Opacity parameter.This parameter only appears on AE and Premiere, where on-screen widgets are supported.

Show Outer Radius: Check-box, Default: off.
Turns on or off the screen user interface for adjusting the Opacity parameter.This parameter only appears on AE and Premiere, where on-screen widgets are supported.

See Also:

WarpTransform WarpVortex WarpPerspective WarpWaves WarpWaves2 WarpPuddle WarpBubble WarpBubble2 WarpFishEye WarpPuff WarpRepeat WarpChroma

KaleidoPolar Sapphire Plug-ins Introduction

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