S_RackDfComp Composites the Foreground over the Background using a Matte while defocusing both layers by different amounts. In the Sapphire Blur+Sharpen effects submenu. Inputs: Foreground:  The clip to use as foreground. Background:  The clip to use as background. Matte:  Optional.   The alpha channel of this input specifies the opacities of the Foreground input. If this input is not provided, the alpha channel of the Foreground input is used instead. This input can be affected by the Invert Matte or Matte Use parameters.

Parameters:

Defocus Foreground:   Default: 0.022,  Range: 0 or greater.
The amount to defocus the Foreground and its Matte. This parameter can be adjusted using the Fg Defocus Widget.

Defocus Background:   Default: 0,  Range: 0 or greater.
The amount to defocus the Background. This parameter can be adjusted using the Bg Defocus Widget.

Rel Height:   Default: 1,  Range: 0.01 or greater.
The relative height of the iris shape. If it is not 1, circles become ellipses, etc.

Shape:   Popup menu,  Default: Circle.
Determines the shape of the simulated camera iris.

Circle:  round.

3 sides:  triangle.

4 sides:  square.

5 sides:  pentagon.

6 sides:  hexagon.

7 sides:  etc.

Roundness:   Default: 0,  Range: any.
Modifies the shape of the simulated camera iris. A value of 1 produces a circle; 0 gives a flat-sided polygon with a number of sides given by the Shape parameter. Less than 0 causes the sides to squeeze inward giving a star shape, while a value greater than 1 causes the corners to squeeze inward, giving a flowery shape. Has no effect if the Shape is set to Circle.

Rotate:   Default: 0,  Range: any.
Rotates the iris shape.

Bokeh:   Default: 0,  Range: any.
Softens the outer edge of the iris shape, which gives a softer look to the defocused highlights. A negative value darkens the center of the iris shape, producing a ring-like defocus shape.

Lens Noise:   Default: 0,  Range: 0 or greater.
Increase to add noise to the iris shape, dirtying up the defocus a little. Can make the result more realistic. Turn up past 1 for a more stylistic result.

Noise Freq:   Default: 40,  Range: 0.01 or greater.
The frequency of the added noise. Ignored if Lens Noise is zero.

Noise Freq Rel X:   Default: 1,  Range: 0.01 or greater.
The relative horizontal frequency of the added iris noise. Increase to stretch it vertically or decrease to stretch it horizontally.

Noise Seed:   Default: 0.123,  Range: 0 or greater.
The seed value for the added noise. To make the noise appear different on each frame, animate this to be different on each frame. The actual value doesn't matter; only that it's different.

Use Gamma:   Default: 2,  Range: 0.1 or greater.
Values above 1 cause highlights in the source clip to keep their brightness after the defocus is applied.

Matte Gamma:   Default: 1,  Range: 0.1 or greater.
The gamma value to use for the defocus of the Matte.

Boost Highlights:   Default: 0,  Range: 0 or greater.
The amount to increase the luma of the highlights in the source clip. Increase this parameter to blow out the highlights without affecting the darks or mid-tones.

Hilight Threshold:   Default: 0.9,  Range: 0 to 1.
The minimum luma value for highlights. Pixels brighter than this will be brightened according to the Boost Highlights parameter.

Comp Premult:   Check-box,  Default: on.
Disable this if you have provided a separate Matte input and the Foreground pixel values have not been pre-multiplied by this Matte.

Matte Use:   Popup menu,  Default: Alpha.
Determines how the Foreground or 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.

Invert Matte:   Check-box,  Default: off.
If enabled, the black and white of the matte are inverted before use.

Edge Mode:   Popup menu,  Default: Reflect.
Determines the behavior when accessing areas outside the source image.

Transparent:  Areas outside the source image are treated as transparent, which can produce transparency around the edges of the image. Select this for fastest rendering.

Repeat:  Repeats the last pixel outside the border of the image.

Reflect:  Reflects the image outside the border.

Soft Borders:   Check-box,  Default: off.
If enabled, transparent borders are added to the input image before processing. This allows the result to include soft edges beyond the original image size. When off, the effect only occurs within the frame and the result will retain an edge at the borders. This parameter does not appear in FCP or DF because those applications don't support image expansion.

Show Fg Defocus: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the Defocus Foreground parameter. Its value should first be made positive to adjust this more easily.

Show Bg Defocus: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the Defocus Background parameter. Its value should first be made positive to adjust this more easily.

See Also:

RackDefocus DefocusPrism Blur Convolve ConvolveComp

Sapphire Plug-ins Introduction

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