---
title: "Glow"
url: "https://help.maxon.net/c4d/en-us/Content/html/MMATERIAL-ID_MATERIALGROUP_GLOW.html"
section_path: "Material Manager > Classic Materials > Classic standard material > Glow"
element_id: "MMATERIAL"
group_id: "ID_MATERIALGROUP_GLOW"
description: "You can specify a color on most of the material channel pages using a color chooser."
---

## Glow

![Image: 004366.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/004366.jpg)\
Figure 1.

This page enables you to create a soft glow.

![Image: 004368.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/004368.jpg)\
The glow color can be defined freely.

> **Tip:** 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.

![Image: 004367.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/004367.jpg)

### Color

Parameter ID: `MATERIAL_GLOW_COLOR`

You can specify a color on most of the material channel pages using a color chooser.

### Brightness

Parameter ID: `MATERIAL_GLOW_BRIGHTNESS` · Range: [0..100%]

Use this setting to adjust the brightness of the channel's color. The brightness works somewhat like a multiplier.

### Inner Strength

Parameter ID: `MATERIAL_GLOW_INNERSTRENGTH` · Range: [0..10000%]

### Outer Strength

Parameter ID: `MATERIAL_GLOW_OUTERSTRENGTH` · Range: [0..10000%]

**Inner Strength** specifies the intensity of the glow over the material surface; **Outer Strength** is the intensity of the glow at the edges (see Figure 1, below).

### Radius

Parameter ID: `MATERIAL_GLOW_RADIUS` · Range: [0..+∞m]

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.

### Random

Parameter ID: `MATERIAL_GLOW_RANDOM` · Range: [0..100%]

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

Parameter ID: `MATERIAL_GLOW_FREQUENCY` · Range: [0.00..+∞]

**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 Material Color

Parameter ID: `MATERIAL_GLOW_USEMATERIALCOLOR`

If **Use Material Color** is enabled, the glow is calculated on the basis of the material 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.