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– Enable Light Source Masking: This checkbox enables the Mask Threshold and Virtual Light
Source Size sliders. You can then choose either Source Mask or Magnified Source Mask to see
the mask that’s created by raising the Mask Threshold slider.
– Mask Threshold: Raising this slider pulls a fast Luma Key that masks off darker foreground
elements (such as trees against the horizon) and limits the flare to areas of the picture where
the light source of the flaring can “shine through” (In this example, shining between the
trees on the horizon.).
– Virtual Light Source Size: This slider determines how quickly the center of a flare will disappear
behind the luma-keyed mask you’ve created; higher values (simulating bigger light sources) cause
a flare to disappear more slowly when passing “behind” a feature of the image that’s being keyed
via the Mask Threshold slider.
Position
Position parameters let you adjust the X and Y Position of the simulated light source that’s causing the
flare. There are three ways you can adjust the flare position.
– You can Adjust the X and Y Position sliders.
– You can turn on the OpenFX Overlay in the Viewer and drag the on-screen control.
– You can motion track elements within the scene using the FX mode of the Tracker palette.
Global Corrections
The Global Corrections group have parameters that let you quickly adjust the overall quality of the
flare effect.
– Global Scaling: Lets you make every element of the flare effect larger or smaller at once.
– Anamorphism: Lets you stretch all flare elements horizontally to simulate an anamorphic lens’
stretching effect.
– Lens Center X and Y position: Lets you offset the center of the simulated lens that’s causing the
flaring, about which the various elements of the flare pivot.
– Global Defocus: Lets you blur the overall flaring effect being created to soften the effect.
– Global Brightness: Lets you raise and lower the overall level of flaring being produced.
– Global Saturation: Lets you adjust the overall color intensity of the flaring.
– Colorise Result: Lets you choose how much to tint the flare, if at all. At a value of 0 (the default), no
colorization is applied at all.
– Colorization Color: Lets you choose a color to use to colorize the flare via the Colorize Result
slider above. You can use either a color control or eyedropper to sample color from the source
RGB image of the current node.
Aperture
The Aperture parameters let you define the aperture of the simulated camera apparatus through which
the flare is being generated. The shape defined by these parameters affects the look of the “starburst
element” of each flare, as well as the look of any aperture-shaped “ghost elements” you’re turning on.
– Aperture Blades: Defines how many blades make up the aperture. You can choose
from 3 to 16 (defaults to 6).
– Angle: Sets the angle of the resulting Aperture shape (defaults to 0.183).
Chapter 157Resolve FX Light 3028
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