S_BlurMotion Performs a motion blur of the source clip between the specified From and To transformations. This can be used to perform radial zoom blurs, rotate blurs, directional blurs, or any combination of these. The From and To parameters do not refer to time. They describe the two transformations in space that determine the style of blur applied to each frame. In the Sapphire Blur+Sharpen effects submenu. Inputs: Source:  The clip to be processed. Mask:  Optional.   If provided, the amount of motion blur is scaled by this input for each destination pixel. This input can be affected using the Blur Mask, Invert Mask, or Mask Use parameters.

Parameters:

Effect:   Popup menu,  Default: Blur Color.
Selects between full color or monochrome result.

Blur Color:  blurs all the channels of the source input.

Blur Mono:  makes the source monochrome and then blurs the resulting single channel (faster).

Center:   X & Y,   Default: [360 243],  Range: any.
The center of rotation and zooming, in screen coordinates relative to the center of the frame. The shift values should be zero for this location to make sense. This parameter can be adjusted using the Center Widget.

From Z Dist:   Default: 1,  Range: 0.001 or greater.
The 'distance' of the From transformation. This zooms about the Center location when Shift is 0. Increase to zoom out, decrease to zoom in. This parameter can be adjusted using the From Transfm Widget.

From Rotate:   Default: 0,  Range: any.
The rotation angle of the From transformation, in degrees, about the center. This parameter can be adjusted using the From Transfm Widget.

From Shift:   X & Y,   Default: [0 0],  Range: any.
The horizontal and vertical translations of the From transformation. This can be used for directional motion. If it is non-zero the center location becomes less meaningful. This parameter can be adjusted using the From Transfm Widget.

To Z Dist:   Default: 0.8,  Range: 0.001 or greater.
The 'distance' of the To transformation. Increase to zoom out, or decrease to zoom in. This parameter can be adjusted using the To Transform Widget.

To Rotate:   Default: 0,  Range: any.
The rotation angle of the To transformation, in degrees, about the center. Note that if the From and To Rotate angles are very different, the interpolation between them will become less accurate. This parameter can be adjusted using the To Transform Widget.

To Shift:   X & Y,   Default: [0 0],  Range: any.
The horizontal and vertical translations of the To transformation. This can be used for directional motion. If it is non-zero the center location becomes less meaningful. This parameter can be adjusted using the To Transform Widget.

Exposure Bias:   Default: 0.5,  Range: 0 to 1.
Determines the variable amount of exposure along the path between the From and To transformations. A value of 0 causes more exposure at the From end, 0.5 causes equal exposure along the path, and 1.0 causes more exposure at the To end. If you have bright spots on a dark background, a 0 value would cause the processed spots to be brighter at the From end and dark at the To end, and a 1.0 value would cause the opposite.

Brightness:   Default: 1,  Range: 0 or greater.
Scales the brightness of the result.

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.

Blur Res:   Popup menu,  Default: Full.
Selects the resolution factor for the motion blur. This is similar to the general 'Res' factor parameter, but does a better job of averaging down to lower resolution and interpolating back up to the result. Higher resolutions give better quality, lower resolutions give faster processing.

Full:  Full resolution is used.

1/2:  The motion blurring is performed at half resolution.

1/4:  The motion blurring is performed at quarter resolution.

Subpixel:   Check-box,  Default: on.
If enabled, uses a better quality but slightly slower method for performing the blur.

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

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

Show From Transfm: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the From Z Dist and From Rotate parameters.

Show To Transform: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the To Z Dist and To Rotate parameters.

Show From Shift: Check-box, Default: off.
Turns on or off the screen user interface for adjusting the Center parameter.

Show To Shift: Check-box, Default: off.
Turns on or off the screen user interface for adjusting the Center parameter.

See Also:

BlurMoCurves Blur Streaks WarpRepeat WarpChroma EdgeRays

Sapphire Plug-ins Introduction

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