S_WarpCornerPin Performs a 3D perspective warp of the source image to align the corners with the four indicated points. This can be useful for positioning the source over an object in another clip, such as a billboard or computer screen. In the Sapphire Distort effects submenu. Inputs: Source:  The input clip to be warped.

Parameters:

Top Left:   X & Y,   Default: [70 286],  Range: any.
Location of the upper-left corner of the source. This parameter can be adjusted using the Top Left Widget.

Top Right:   X & Y,   Default: [500 430],  Range: any.
Location of the upper-right corner of the source. This parameter can be adjusted using the Top Right Widget.

Bottom Left:   X & Y,   Default: [160 100],  Range: any.
Location of the lower-left corner of the source. This parameter can be adjusted using the Bottom Left Widget.

Bottom Right:   X & Y,   Default: [580 86],  Range: any.
Location of the lower-right corner of the source. This parameter can be adjusted using the Bottom Right Widget.

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.

Bulge:   X & Y,   Default: [0 0],  Range: -1 to 1.
Distorts the perspective of the warped image, so that it appears to bulge in one direction. A value of 1 gives no distortion. A value of less than one causes the image to stretch toward the upper/right corner, while a value of greater than one causes it to stretch to the lower/left corner.

Wrap:   X & Y,  Popup menu,  Default: [No 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.

Crop Input Parameters:   Default: 0,  Range: 0 or greater.
These 4 parameters, Crop Top, Crop Bottom, Crop Left, and Crop Right, allow selecting a rectangular subsection of the input 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 source 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 Top Left: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the Top Left parameter.

Show Top Right: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the Top Right parameter.

Show Bottom Left: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the Bottom Left parameter.

Show Bottom Right: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the Bottom Right parameter.

See Also:

Sapphire Plug-ins Introduction

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