Syntax:

halo_eccentricity = <scalar>

Range:

Any non-negative number

Default:

0.1

Purpose:

This determines how focussed the glow effect is. A low eccentricity value will create a concentrated glow with a fast decay. A high eccentricity value will create a strong halo.

Comments:

The degree to which a glow effect will focus towards the center is limited. For very low values(0.01) the quality parameter should be increased for the best effect. Generally, however, it is best to use a glow with a low spread value with a halo effect that is more spread out.

Example:

halo_eccentricity = .5