S_DissolveVortex Transitions between two input clips using a vortex warping function. The first clip is warped away and faded out while the second clip is unwarped into place and faded in. The Dissolve Percent parameter should be animated to control the transition speed. In the Sapphire Transitions effects submenu. Inputs: Foreground:  The current layer.   Starts the transition with this clip. Background:  Defaults to None.   Ends the transition with this clip. If this input is not provided, a fully transparent background is used, showing whatever is behind it. Note that the background can not be warped during the transition unless this input is provided.

Parameters:

Transition Dir:   Popup menu,  Default: Dissolve Off to Bg.
Selects the direction of the transition.

Dissolve Off to Bg:  transitions from the current layer to the Background.

Dissolve On from Bg:  transitions from the Background to the current layer.

Auto Trans:   Popup YES-NO,  Default: No.
If enabled, a transition is performed automatically between the first and last frames of the layer. If this is off, the transition is performed manually by animating the Dissolve Percent parameter.

Dissolve Percent:   Default: 0,  Range: 0 to 100.
Auto Trans must be disabled for this parameter to be used. It determines the transition ratio between the Foreground and Background inputs, and would normally be animated from 0 to 100 to perform a complete transition. The curve controlling this parameter can be adjusted for more detailed control over the timing of the dissolve. The Slow In and Slow Out parameters, if positive, also adjust the transition ratio internally for a smoother start and/or end to the transition.

Center:   X & Y,   Default: [360 243],  Range: any.
The location of the vortex center in screen coordinates relative to the center of the frame. This parameter can be set by enabling and moving the Center Widget. Note that moving the vortex center can also cause the vortex size to change so that the current value of Wipe Amt remains correct.

Vortex Amount:   Default: 72,  Range: any.
The amount of vortex rotation, in approximate degrees at the edge of the frame.

Rel Amount2:   Default: -1,  Range: any.
The relative amount of the second clip vortex rotation. If this is positive instead of negative the second clip will be unvortexed from the opposite direction.

Rotate Amount:   Default: 0,  Range: any.
If non-zero, a rotation is also added to the warping. Make negative to rotate the inner and outer regions in different directions.

Inner Radius:   Default: 15,  Range: 0 or greater.
The radius from the center at which the vortexing is phased in. This can be used to reduce excessive distortion and aliasing at the very center of the vortex.

Slow In:   Default: 0.5,  Range: 0 to 1.
If positive, causes the transition to start more gradually.

Slow Out:   Default: 0.5,  Range: 0 to 1.
If positive, causes the transition to end more gradually.

Wrap:   X & Y,  Popup menu,  Default: [Reflect Reflect].
Determines the method for accessing outside the borders of the source images.

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.

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.

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. If your image has sharp color changes where the matte channel also has sharp edges, you may get better results with Normal mode.

See Also:

DissolveStatic DissolveSpeckle DissolveDiffuse DissolveBubble DissolveWaves DissolvePuddle DissolveBlur DissolveLuma

WarpVortex Sapphire Plug-ins Introduction

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