Element: Stripe
Stripe renders a tapered line. Its two colors create a laser beam sort of look with a small sharp inside color and a softer outer glow.
What it is based on
Stripe is based on many anamorphic lenses which exhibit a blue horizontal streak through the center. Some video cameras also exhibit a reddish vertical streak through the center.
Position
Sets the location of the Stripe element. The position is always along a line that passes through both the center of the image and the light source. Alternately, you can click inside the Preview Window and reposition the element with the cursor crosshair.
A value of 1 sets the element at a light source. A value of 0 sets the element in the center of the composition frame. A value of -1 sets the element on the opposite side of the frame from the light source.
Brightness
Sets the brightness of the stripe. High values make the stripe brighter. Low values make the stripe less bright and more transparent.
Length
Sets the length of the stripe. You can adjust Length to make the stripe very small, almost a small box instead of a stripe, or make it almost infinitely long.
Softness
Creates a soft glow around the stripe. The higher this is set, the wider the glow is. The slider limit is 50, but hand-typing in a much higher value, say 500, will create a very wide band. If Length is set to a very small amount, then you’ll get a variant of the stripe going perpendicular to the angle the stripe should be going.
Center checkbox
Turns off the center color, leaving just a single color stripe.
Outer Color
Sets the color along the border of the stripe.
Center Color
Sets the color inside the stripe. This can be turned off with the Center checkbox.