S_Diffuse

Scrambles the pixels of the source input within an area determined by the Diffuse Amount. Use the Blur Rel X and Y parameters for a more horizontal or vertical diffuse direction. The pixelated look of this effect depends on the image resolution, so it is recommended to test your final resolution before processing.

In the Sapphire Stylize effects submenu.


Inputs:

Source:  The clip to be processed.

Mask:  Optional.   If provided, this determines which areas of the image receive diffusing pixels. Gray values internally scale the Diffuse Amount parameter rather than simply cross-fading between the effect and the original source. This can allow more continuous results at the mask edges and more detailed control over the diffusion amounts. This input can be affected using the Blur Mask, Invert Mask, or Mask Use parameters.
        

Parameters:

Diffuse Amount:   Default: 0.1,  Range: 0 or greater.
The amplitude of the pixel diffusion process. This parameter can be adjusted using the Diffuse Amount Widget.

Rel Amount:   X & Y,   Default: [1 1],  Range: 0 or greater.
Scales the relative horizontal and vertical amounts of diffusion. This parameter can be adjusted using the Diffuse Amount Widget.

Wrap:   X & Y,  Popup menu,  Default: [Reflect Reflect].
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.

Blur Mask:   Default: 0,  Range: 0 or greater.
Blurs the Mask input by this amount before using. This can be used to soften the edges of the mask and provide a smoother transition between the masked and unmasked areas. It has no effect unless the Mask input is connected.

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

Mask Use:   Popup menu,  Default: Luma.
Determines how the Mask input channels are used to make a monochrome mask.
Luma:  the luminance of the RGB channels is used.
Alpha:  only the Alpha channel is used.

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 Diffuse Amount: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the Diffuse Amount parameter.


See Also:

WipeDiffuse
DissolveDiffuse
GrainStatic
Grain
FilmEffect
Sapphire Plug-ins Introduction


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