S_Shake Applies a shaking motion to the source clip over time with translation, zooming, and/or rotation. The shaking is random but repeatable, so with the same parameters the same shaking motion is generated each time. Turn on Motion Blur and adjust the Mo Blur Length for different amounts of blur. Adjust the Amplitude and Frequency for different shaking speeds and amounts. The Rand parameters give detailed control of the random non-periodic shaking, and the Wave parameters adjust the regular periodic shaking. The X, Y, Z, and Tilt parameters control the horizontal, vertical, zoom, and rotation amounts of shaking respectively. In the Sapphire Distort effects submenu. Inputs: Source:  The current layer.   The clip to shake.

Parameters:

Amplitude:   Default: 1,  Range: 0 or greater.
Scales the amplitude of the shaking motion.

Frequency:   Default: 8,  Range: 0 or greater.
Increase for faster shaking, decrease for slower shaking. (Be careful if you animate frequency values because the resulting shake frequency is also affected by the rate of change of the value.)

Phase:   Default: 0,  Range: any.
Time shift of the shaking motions. (If you animate this value, its rate of change will also affect the apparent frequency.)

Z Dist:   Default: 1,  Range: 0.001 or greater.
Scales the 'distance' of the image. Values greater than 1.0 move it farther away and make it smaller. Values less then 1.0 move the image closer and enlarge it. Zooming in slightly can sometimes be used to hide edge artifacts.

Motion Blur:   Check-box,  Default: off.
Options for motion blur of the shaking motion.

Mo Blur Length:   Default: 1,  Range: 0 or greater.
Scales the amount of motion blur. Use around .5 when processing on fields or 1.0 for frames to give realistic motion blur. This parameter has no effect if Motion Blur is No.

Seed:   Default: 0,  Range: 0 or greater.
Used to initialize the random number generator. The actual seed value is not significant, but different seeds give different results and the same value should give a repeatable result.

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.

X Rand Amp:   Default: 72,  Range: 0 or greater.
Amplitude of horizontal random shaking.

X Rand Freq:   Default: 1,  Range: 0 or greater.
Frequency of horizontal random shaking.

X Wave Amp:   Default: 0,  Range: 0 or greater.
Amplitude of horizontal regular wave shaking.

X Wave Freq:   Default: 0.5,  Range: 0 or greater.
Frequency of horizontal regular wave shaking, in cycles per second.

X Phase:   Default: 0,  Range: any.
Time shift of the horizontal shaking.

Y Rand Amp:   Default: 36,  Range: 0 or greater.
Amplitude of the vertical random shaking.

Y Rand Freq:   Default: 1,  Range: 0 or greater.
Frequency of the vertical random shaking.

Y Wave Amp:   Default: 0,  Range: 0 or greater.
Amplitude of the vertical regular wave shaking.

Y Wave Freq:   Default: 0.5,  Range: 0 or greater.
Frequency of the vertical regular wave shaking, in cycles per second.

Y Phase:   Default: 0,  Range: any.
Time shift of the vertical shaking.

Z Rand Amp:   Default: 0,  Range: 0 or greater.
Amplitude of the zoom random shaking.

Z Rand Freq:   Default: 1,  Range: 0 or greater.
Frequency of the zoom random shaking.

Z Wave Amp:   Default: 0,  Range: 0 or greater.
Amplitude of the zoom regular wave shaking.

Z Wave Freq:   Default: 0.5,  Range: 0 or greater.
Frequency of the zoom regular wave shaking, in cycles per second.

Z Phase:   Default: 0,  Range: any.
Time shift of the zoom shaking.

Tilt Rand Amp:   Default: 5,  Range: 0 or greater.
Amplitude of the rotational random shaking, in degrees.

Tilt Rand Freq:   Default: 1,  Range: 0 or greater.
Frequency of the rotational random shaking.

Tilt Wave Amp:   Default: 0,  Range: 0 or greater.
Amplitude of the rotational regular wave shaking, in degrees.

Tilt Wave Freq:   Default: 0.5,  Range: 0 or greater.
Frequency of the rotational regular wave shaking, in cycles per second.

Tilt Phase:   Default: 0,  Range: any.
Time shift of the rotational shaking.

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.

See Also:

Flicker WarpTransform BlurMotion BlurMoCurves Sapphire Plug-ins Introduction

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