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Sapphire Plug-ins for AVX2: SpotLight

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 category.


Inputs:

Source: The current track. The clip to combine the light with.

Background: Optional. Composites the Source and spot light over this clip.

Mask: Optional. If provided, the source spot colors are scaled by this input. A monochrome mask can be used to choose a subset of Source areas that will generate spots. A color mask can be used to selectively adjust the spot colors in different regions. The mask is applied to the source before the spots are generated so it will not clip the resulting spots.

Parameters:

Load Preset: Push-button .
Brings up the Preset Browser to browse all available presets for this effect.

Save Preset: Push-button .
Brings up the Preset Save dialog to save a preset for this effect.

Mocha: Default: 0, Range: 0 or greater.
Brings up the Mocha window for tracking footage and generating masks.

Blur Mocha: Default: 0, Range: 0 or greater.
Blurs the Mocha Mask by this amount before using. This can be used to soften the edges or quantization artifacts of the mask, and smooth out the time displacements.

Mocha Opacity: Default: 1, Range: 0 to 1.
Controls the strength of the Mocha mask. Lower values reduce the intensity of the effect.

Invert Mocha: Check-box,  Default: off.
If enabled, the black and white of the Mocha Mask are inverted before applying the effect.

Resize Mocha: Default: 1, Range: 0 to 2.
Scales the Mocha Mask. 1.0 is the original size.

Resize Rel X: Default: 1, Range: 0 to 2.
The relative horizontal size of the Mocha Mask.

Resize Rel Y: Default: 1, Range: 0 to 2.
The relative vertical size of the Mocha Mask.

Shift Mocha: X & Y,   Default: [0 0], Range: any.
Offsets the position of the Mocha Mask.

Bypass Mocha: Check-box,  Default: off.
Ignore the Mocha Mask and apply the effect to the entire source clip.

Show Mocha Only: Check-box,  Default: off.
Bypass the effect and show the Mocha Mask itself.

Combine Masks: Popup menu,  Default: Union .
Determines how to combine the Mocha Mask and Input Mask when both are supplied to the effect.
Union: Uses the area covered by both masks together.
Intersect: Uses the area that overlaps between the two masks.
Mocha Only: Ignore the Input Mask and only use the Mocha Mask.

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

Light1: X & Y,  Default: screen upper left.
The position of this light source relative to the image plane. This parameter can be adjusted using the Light1 Widget.

Light1 Z: Default: 0.5, Range: 0.1 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: screen center left.
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. This parameter can be adjusted using the Aim1 Widget.

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

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.

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.

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. This parameter can be adjusted using the All Aims Shift Widget.

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 source image.
Lights Only: gives only the spotlight image.
Mult: the light is multiplied by the source image. This is the effect that a real light would typically have.
Add: the light is added to the source image.
Screen: the light is blended with the source using a screen operation.
Overlay: the light is combined with the source using an overlay function.

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, or if there is no valid Alpha channel the Red channel is used.

Blur Mask: Default: 0.05, 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.
See general info for: Apply To Title/Key , Crop/Transform , Resolution , Clamp Output To Legal , Bypass Effect , and Reset .


See Also:

LensFlare
Emboss
Sapphire Plug-ins Introduction

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