Corona

Corona creates radiant solar flares, glowing aurora, and fills selections with gaseous clouds. Using one of two modes, you can create linear or wavering solar flares. You can also control the corona’s expansion from the selection edge.

### Basic Tab

Create Output In New Layer Below Current

Creates a layer below the working layer (in Photoshop and Elements only) and renders the effect to it. This feature allows you to view, edit, or turn off the effect without affecting the original layer.

If you switch filters from within a filter window, the new layer feature will be disabled in the filter you’ve switched to. If you want to apply a filter in a new layer, make sure you start with the filter you plan to apply.

Create Output In New Layer Below Current is unavailble when recording actions in Photoshop. Clear this checkbox when recording actions.

Note: This feature cannot be used on a background layer.

#### Corona Type

• Streaky—Produces linear flares.

• Turbulent—Creates chaotic, wavering flares.

Left: Streaky. Right: Turbulent.

Glow Radius

Controls the distance that the flares expand from the selection edge. Higher values render a larger corona.

Left to right: Increasing Glow Radius.

Flare Width

Controls the average width of the flares. Higher values yield wider flares.

Stretch

Controls the amount of flare elongation. Higher values stretch the shorter flares towards the edge of the glow radius.

Waver

Controls the random bending of individual flares. Higher values yield curvier flares.

Left to right: Increasing Waver.

Blur

Softens the edges of the flares. Higher values yield softer edges.

Left to right: Increasing Blur.

Overall Opacity

Controls the transparency of the corona. Low values yield a more transparent effect. Underlying images remain more visible. Higher values reduce the visibility of underlying images.

#### Gradient Controls

For complete information on how to use Gradient Controls, see Gradient Editor.

Radiate From Selection

Select this option to expand the effect from the edge of the selection, rather than radially from a single point inside the selection.

Mask Selection

Select this option to make the effect appear to radiate from the back of the selection.

Note: Mask Selection is disabled when Create Output In New Layer Below Current is selected.

Left: Mask Selection disabled. The white lines text outlines represent the original selection. Right: Mask Selection enabled.

Random Seed:

Controls the random elements of this filter. Click it until you get a result you like.

### Corona Offset Tab

Offset Corona Center

Select this option to enable the offset controls. Offset Corona Center is only available when the Radiate From Selection check box is cleared.

Horizontal Offset

Shifts the center of the corona right or left. Zero produces no shift. Positive values shift the corona right. Negative values shift the corona left.

Vertical Offset

Shifts the center of the corona up and down. Zero produces no shift. Positive values shift the corona up. Negative values shift the corona down.