Color

Defines the glow’s color. The selected color cannot be intensified.

Opacity

Controls the glow’s opacity.

0 = transparent;

1= opaque (glow is intense enough to conceal any color behind it)

Intensity

Defines the glow’s intensity.

Tip: Switching object color on and increasing this parameter results in a more protruding glow.

Object Color

Uses the object’s color to determine the glow.

Tip: Leaving this parameter off increases rendering speed.

Heed Depth

Switches on a depth-buffer algorithm for the glow. Objects in front of the glowing object(s) will then obscure parts of the glow properly. Due to the inherent imprecision of the tag channel, a slight under- or overlap may occur on the object’s edges.

Tip: Leaving this parameter off increases rendering speed.

Safe

Takes the intensity of the underlying object into consideration when adding the glow.

Glow Only

Creates the glow only into an output file. Useful when the glow is applied on an object that will be composited into another scene.

Size

Defines how far the glow stretches from the object.

Minimum Level

Controls the precision of the glow. An algorithm searches outward from the object: as the algorithm moves outward, its level drops.

Tip: If the value is too high, the edge of the glow becomes visible. Lower the value a little until the edge is not visible. This parameter can make a big difference to the scene’s rendering time.

Linear

Changes the curve to a linear one, which makes the glow more visible but less attractive.

Exponential

Changes the curve to an exponential one, which makes the glow less visible but more attractive.

Exclude Object

Does not apply a glow to the object itself, only to its edges.

Tip: Use this parameter when you don’t want the glow to obscure the object.

Shrink Object

To reduce edge artifacts you must shrink the apparent size of the original object before applying the glow.

Tip: When working with narrow spaces between objects, you can reduce artifacts by increasing this parameter.

Amplitude

Defines the noise amplitude. Noise is subtracted from the full glow’s intensity.

Scale

Defines the size of the noise. When increased, the variations are slower across the surface.

Animate

Makes the noise animate with time.

Object Space

Makes the glow cling to the object. When the object is moved or scaled, the glow follows.

Time Offset

Defines the time offset for the noise animation. Useful for multi-part renderings.

Time Scale

Defines the time scale. At a value of 1, the noise changes every second on average. The higher the value, the faster the change.