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Gradient Flare effect reminds the effect you get when you take a
photograph of a blinding light source, with a halo and radiations around
the source. The Gradient Flare image has three components:
Glow which is the big central fireball,
Rays and Second Flares
5.2.2.
Activate the filter
This filter is found in the image window menu under
→ →
The Settings tab allows you to set manually the parameters while the
Selector tab let you choose presets in a list.
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Preview
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When Auto Update Preview is checked,
parameter setting results are interactively displayed in preview
without modifying the image until you click on
OK button.
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Center
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You can set there X and Y (pixels) coordinates of glint. The
coordinate origin is at the upper left corner
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Parameters
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Radius: The radius of the effect. Don't
be afraid to use the box with the digits instead the slider
which is a bit limited.
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Rotation: Turn the effect.
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Hue Rotation: Change the tint (color) of
the effect.
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Vector Angle: Turn the Second flares.
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Vector length: Vary the distance applied
for the Second flares.
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Adaptive Supersampling
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Settings of the anti-aliasing following parameters like Depth
and Threshold.
The Selector tab allows you to select a Gradient Flare pattern, to
change it and save it.
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New
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When you click on this button, you create a new Gradient Flare
pattern. Give it a name of your choice.
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Edit
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This button brings up the Gradient Flare Editor (see below).
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Copy
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This button allows you to duplicate selected Gradient Flare
pattern. You can edit the copy without altering the original.
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Delete
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This button deletes the selected Gradient Flare pattern.
5.2.6.
Gradient Flare Editor
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General
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Glow Paint Options
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Rays Paint Options
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Options are the same as for "Glow".
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Second Flare Paint Options
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Options are the same as for "Glow".
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Glow
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Gradients
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By clicking on the rectangular buttons, you can develop a
long list of gradients. "%" gradients belong to the Editor.
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Radial gradient: The selected
gradient is drawn radially, from center to edge.
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Angular gradient: The selected
gradient develops around center, counter-clockwise,
starting from three o'clock if "Rotation" parameter is
set to 0. Radial and angular gradients are combined
according to the Multiply mode: light areas are enhanced
and colors are mixed according to CMYK color system
(that of your printer).
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Angular size gradient: This is a
gradient of radius size which develops angularly. Radius
is controlled according to gradient Luminosity: if
luminosity is zero (black), the radius is 0%. If
luminosity is 100% (white), the radius is also 100%.
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Parameters
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Size (%): Sets size (%) of glow
(0-200).
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Rotation: Sets the origin of the
angular gradient (-180 +180).
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Hue rotation: Sets glow color,
according to the HSV color circle (-180 +180).
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Rays
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Gradients
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The options are the same as for Glow.
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Parameters
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The first three options are the same as in Glow. Two are
new:
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# of spikes: This option determines
the number of spikes (1-300) but also their texture.
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Spike Thickness: When spikes get
wider (1-100), they look like flower petals
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Second Flares
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Gradients
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The options are the same as for Glow.
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Parameters
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Options are the same as in Glow.
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Shape of Second Flares
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Second flares, these satellites of the main flare, may have
two shapes: Circle and
Polygon. You can set the
Number polygon sides. The option
accepts 1 side (!), not 2.
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Random seed and Randomize
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Random Seed: The random generator
will use this value as a seed to generate random
numbers. You can use the same value to repeat the same
“random” sequence several times.
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Randomize: When you click on this
button, you produce a random seed that will be used by
the random generator. It is each time different.
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