6.9. Lights & Flares

Chromatic Aberration

Creates an offset between the color channels of the image.

• Channels: Choose the channels of the image which are shifted. the two channels are shifted in opposite directions, along the axis of the angle chosen in the direction property.
  • Red & Blue: Shifts the red and blue channels in opposite directions.
  • Red and Green: Shifts the red and green channels in opposite directions.
  • Blue and Green: Shifts the blue and green channels in opposite directions.
• Size: Sets the distance of the shift applied to the selected channels. Negative values will shift each of the two channels in the opposite direction.
• Threshold: Raising the threshold will limit the effect to the brighter areas of the image, so only tonal values above the selected threshold will be affected.
• Threshold smooth: Softens the transition between affected and unaffected tones, around the threshold set above.
• Lens falloff: Enable or disable lens falloff in the effect.
• Direction: Set the angle of the offset. When the Size property is adjusted, the colors will be offset along the axis of the angle you choose here.

Glow

• Radius: Set the radius, in pixels of the glow that is generated.
• Exposure: Increase or decrease the brightness of the resulting effect.
• Threshold: Raising the threshold will limit the effect to the brighter areas of the image, so only tonal values above the selected threshold will be affected.
• Threshold smooth: Softens the transition between affected and unaffected tones, around the threshold set above.

Style

• Tint: Select the color with which the glow will be tinted.
• Spread: Shifts the mid-point of the gradient along the edge of the glow outward, to make the glow stronger.
• Aspect ratio: Give the glow a linear effect by changing the aspect ratio.
  • X: Reduce the X aspect to create a vertically stretched glow.
  • Y: Reduce the Y aspect to create a horizontally stretched glow.
• Blend mode: Choose the blend mode used to blend the glow onto the layer.
• Lighten: The glow will only be displayed on pixels where the glow value is lighter than the underlying image color.
  • Screen: Combines the glow value with the underlying color value to brighten the image.
• Blend original: Adjusts the opacity of the rendered glow effect, to reveal the underlying image.

Chromatic aberration

• Size: Sets the distance of the shift applied to the selected channels. Negative values will shift each of the two channels in the opposite direction.
• Channels: Choose the channels of the image which are shifted. the two channels are shifted in opposite directions, along the axis of the angle chosen in the direction property.
  • Red & Blue: Shifts the red and blue channels in opposite directions.
  • Red and Green: Shifts the red and green channels in opposite directions.
  • Blue and Green: Shifts the blue and green channels in opposite directions.

Hot spots

• Horizontal: Stretch the glow on the brightest areas of the image horizontally.
• Vertical: Stretch the glow on the brightest areas of the image vertically.