S_SpotLight Lights the input clip using one or two spotlights. For each enabled light, the intersection of a 3D light cone with the image plane is calculated using the given light source position, aim location, and beam angle. Ambient light can also be applied to affect the entire source image evenly. A wide variety of lighting shapes can be created by adjusting the parameters provided. In the Sapphire Lighting effects submenu. Inputs: Background:  The current layer.   The clip to combine the light with.

Parameters:

Light1 Enable:   Check-box,  Default: on.
Turns on or off this spotlight.

Light1 Bright:   Default: 0.8,  Range: any.
Scales the brightness of this spotlight. This value can be made negative for a 'dark' spotlight effect.

Light1 Color:   Default rgb: [1 1 1].
Determines the color of this spotlight.

Light1:   X & Y,   Default: [180 360],  Range: any.
The position of this light source relative to the image plane.

Light1 Z:   Default: 180,  Range: 10 or greater.
The distance of this light source from the image plane. Decreasing this brings the light source closer to the surface and causes the direction of the beam to be more parallel to the surface, which can stretch the spot into an ellipse or hyperbola shape.

Aim1:   X & Y,   Default: [300 243],  Range: any.
This spotlight is directed at this location on the image plane. If this is directly under the Light Source a circular spot will result. When moved away from the Light Source it can also cause the spot to change to an ellipse or hyperbola shape.

Spread Angle1:   Default: 45,  Range: 0 to 360.
The spread angle of this spotlight beam in degrees. Larger values open up the beam for a larger spot.

Softness1:   Default: 0.3,  Range: 0.01 to 1.
Determines the amount of penumbra or the softness of the spotlight edges, relative to the Spread Angle. Lower values make crisp edged shapes, higher values make softer shapes.

Falloff Power1:   Default: 0,  Range: 0 or greater.
Determines how much the spotlight brightness fades with distance. A value of 0 causes no fading, 1 fades the light as distance increases, and 2 fades it faster with distance. A value of 2 is correct for a physically realistic point light.

Light2 Enable:   Check-box,  Default: off.
Turns on or off the second spotlight.

The remainder of the Light2 parameters are the same as those described above for Light1, but control the second spotlight instead.

Ambient Bright:   Default: 0.2,  Range: any.
The amount of ambient light included in the entire frame. This allows parts of the Background outside of the spotlights to still be visible if desired.

Ambient Color:   Default rgb: [1 1 1].
Determines the color of the ambient light.

All Lights Bright:   Default: 1,  Range: any.
Scales the brightness of all the spotlights together.

All Lights Color:   Default rgb: [1 1 1].
Scales the color of all the spotlights together.

All Aims Shift:   X & Y,   Default: [0 0],  Range: any.
Adds this amount to all lights Aim parameters. This can be used to easily make all lights aim at the same location.

All Shift:   X & Y,   Default: [0 0],  Range: any.
Shifts the entire spotlight pattern without changing their shapes by adding this amount to all light and aim positions.

Combine:   Popup menu,  Default: Mult.
Determines how the light is combined with the Background.

Lights Only:  gives only the light image with no Background.

Mult:  the light is multiplied by the Background. This is the effect that a real light would typically have.

Add:  the light is added to the Background.

Screen:  the light is blended with the Background using a screen operation.

Overlay:  the light is combined with the Background using an overlay function.

See Also:

LensFlare Emboss Sapphire Plug-ins Introduction

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