Glare Node

The Glare node is used to add lens flares, fog, glows around bright parts of an image.

Inputs

Image

Standard color input.

Properties

Glare Type

• Bloom:

  Simulates the glow around bright objects caused by light scattering in eyes and cameras.

  • Size

    Scale of the glow relative to the size of the image. 9 means the glow can cover the entire image, 8 means it can only cover half the image, 7 means it can only cover quarter of the image, and so on.

  Ghosts:

  Creates a haze over the image.

  Streaks:

  Creates bright streaks used to simulate lens flares.

  • Streaks

    Total number of streaks.

    Angle Offset

    The rotation offset factor of the streaks.

    Fade

    Fade out factor for the streaks.

  Fog Glow:

  Simulates the glow around bright objects caused by light scattering in eyes and cameras. This is similar to the Bloom mode, but is more physically accurate, at the cost of much slower computation time.

  • Size

    Scale of the glow relative to the size of the image. 9 means the glow will cover the entire image, 8 means it will cover half the image, 7 means it will cover quarter of the image, and so on.

  Simple Star:

  Works similar to Streaks but gives a simpler shape looking like a star.

  • Fade

    Fade out factor for the streaks.

    Rotate 45

    Rotate the streaks by 45°.

Quality

If not set to something other the High, then the glare effect will only be applied to a low resolution copy of the image. This can be helpful to save render times while only doing preview renders.

Iterations

The number of times to run through the filter algorithm. Higher values will give more accurate results but will take longer to compute. Note that, this is not available for Fog Glow as it does not use an iterative-based algorithm.

Color Modulation

Used for Streaks and Ghosts to create a special dispersion effect.

Johannes Itten describes this effect, Color Modulation, as subtle variations in tones and chroma.

Mix

Value to control how much of the effect is added on to the image. A value of -1 would give just the original image, 0 gives a 50/50 mix, and 1 gives just the effect.

Threshold

Pixels brighter than this value will be affected by the glare filter.

Outputs

Image

Standard color output.