Glow (CineRender Surface Channel)

This page enables you to create a soft glow.

Glow is a post effect. It will take place only if you also turn on Object Glow in the Rendering Settings dialog. See Object Glow.

Glows cannot be seen through transparent objects, nor in reflections. The glow you specify here does not act as a light; other parts of the scene will not be lit by the glow, nor will any shadows be cast. Glows are restricted to a maximum image resolution of 4,000 x 4,000 pixels.

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Color and Brightness

See Defining Color and Brightness Values.

Inner Strength/Outer Strength

Inner Strength specifies the intensity of the glow over the surface; Outer Strength is the intensity of the glow at the edges. 


The Radius determines how far the glow (either the inner or the outer) extends from the surface. This value is rendered relative to the distance of the object from the camera. The further away the object is, the smaller the glow, and vice versa.


If a random percentage is defined, the intensity of the glow in each animation frame is increased and decreased in a random pattern, as follows:

0%: No change

100%: Maximum change


Frequency specifies how often the glow radius changes. The amplitude of the change is given by the Random value.

1Hz: The glow reaches a new random value after 1 second

25Hz: The glow has a new value for each frame (for 25 fps), which causes a flicker

Use Surface Color

If Use Surface Color is enabled, the glow is calculated on the basis of the surface color rather than the color specified here.

If the option is disabled, the object and glow colors are mixed. For example, green objects will appear yellowish under a red glow.