User Manual

Table Of Contents
Light Source Masking
Three additional controls at the top let you create a quick and dirty luma key to create a mask
that you can use for occluding the lens flare effect behind foreground elements in the scene.
For example, if you’re using lens flare to simulate the sun in the sky, these controls let you mask
trees in the foreground so that the lens flare appears to be behind the trees, as the
sun would be.
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.
Chapter – 141 ResolveFX Light 3042