S_GradientRadial Makes a smooth radial color gradient in an ellipse shape, given Center, Inner Radius, and Outer Radius parameters, and optionally combines the gradient with a background clip. Increase Add Noise to reduce banding artifacts in the gradient due to color quantization. In the Sapphire Render effects submenu. Inputs: Background:  The current layer.   The clip to combine the gradient with.

Parameters:

Center:   X & Y,   Default: [360 243],  Range: any.
The center location of the ellipse shape.

Inner Radius:   Default: 50,  Range: 0 or greater.
Distance from the center that the gradient starts.

Outer Radius:   Default: 360,  Range: 0 or greater.
Distance from the center that the gradient ends.

Rel Height:   Default: 0.75,  Range: 0.1 or greater.
The relative vertical size of the ellipse shape. Increase for a taller ellipse, decrease for a wider one.

Rel Width:   Default: 1,  Range: 0.1 or greater.
The relative horizontal size of the ellipse shape. Increase for a wider ellipse, decrease for a taller one.

Rotate:   Default: 0,  Range: any.
Rotation in degrees of the ellipse. Note that rotation will have no effect when Rel Width and Rel Height are equal and the shape is a perfect circle.

Inner Color:   Default rgb: [1 1 1].
The gradient color at the Inner Radius.

Outer Color:   Default rgb: [0 0 0].
The gradient color at the Outer Radius.

Brightness:   Default: 1,  Range: 0 or greater.
Scales the brightness of the gradient image (both the Inner Color and Outer Color).

Add Noise:   Default: 0,  Range: 0 or greater.
If positive, this amount of noise is added to the gradient. This can create a grainy effect and eliminate banding in the gradient due to quantization. Set this to 1.0 to enable effective debanding for 8bit results.

Smooth Curve:   Default: 0,  Range: 0 to 1.
If zero, a linear interpolation is used across the screen between the Start and End Color. Increase this value to use a smoother 'S' shaped curve for interpolation which can reduce the visual perception of the gradient's Start and End locations.

Bg Brightness:   Default: 1,  Range: 0 or greater.
Scales the brightness of the background before combining it with the gradient.

Combine:   Popup menu,  Default: Grad Only.
Determines how the gradient is combined with the background.

Grad Only:  gives the gradient image alone with no background.

Mult:  the background is multiplied by the gradient.

Add:  the background is added to the gradient.

Screen:  the background is blended with the gradient using a screen operation.

Difference:  the result is the difference between the background and gradient.

Overlay:  combines gradient and background using an overlay function.

Input 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.

Output Opacity:   Popup menu,  Default: Copy From Input.
Determines the opacity/transparency of the result. This effect does not process the opacity (alpha channel) of its input but it can either copy the opacity from the input, or output a fully opaque result.

All Opaque:  Makes the result fully opaque with no transparency.

Copy From Input:  Copies the opacity/transparency from the current layer given to this effect.

Show Outer Radius: Check-box, Default: off.
Turns on or off the screen user interface for adjusting the Output Opacity parameter.This parameter only appears on AE and Premiere, where on-screen widgets are supported.

Show Inner Radius: Check-box, Default: off.
Turns on or off the screen user interface for adjusting the Output Opacity parameter.This parameter only appears on AE and Premiere, where on-screen widgets are supported.

Show Rotate: Check-box, Default: off.
Turns on or off the screen user interface for adjusting the Output Opacity parameter.This parameter only appears on AE and Premiere, where on-screen widgets are supported.

See Also:

SpotLight Sapphire Plug-ins Introduction

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