---
title: "Tag Properties"
url: "https://help.maxon.net/c4d/en-us/Content/html/THAIRLIGHT-ID_TAGPROPERTIES.html"
section_path: "Object Manager > Tags Menu > Hair Tags > Light > Tag Properties"
element_id: "THAIRLIGHT"
group_id: "ID_TAGPROPERTIES"
description: "This setting defines whether or not a light source should illuminate the hair. It's also possible to exclude light sources from lighting hair."
---

## Tag Properties

### Include

Parameter ID: `HAIR_LIGHT_TAG_INCLUDE`

This setting defines whether or not a light source should illuminate the hair. It's also possible to exclude light sources from lighting hair.

### Shadows

Parameter ID: `HAIR_LIGHT_TAG_SHADOWS`

Use this setting to define the type of shadow the hair should cast. The following options are available:

None

The hair will cast no shadows, regardless of any light source settings.

Soft Shadows

The hair will always cast soft shadows, regardless of any light source settings (Hair-specific shadow maps settings should still be adjusted using this menu). All settings, with the exception of **Traced Width**, apply to soft shadows.

### Density

Parameter ID: `HAIR_LIGHT_TAG_SHADOW_DENSITY` · Range: [0..+∞%]

Use this setting to define the shadow map's overall shadow density (affects self-shadowing and shadows cast onto geometry).

### Cast Density

Parameter ID: `HAIR_LIGHT_TAG_CAST_SHADOW` · Range: [0..+∞%]

Use this setting to define the shadow density of shadows cast onto non-hair scene objects. There is a correlation to the **Density** setting. If **Density** is set to 0, even a **Cast Shadow** value of **500%** will not generate a cast shadow onto geometry.

### Sample Size

Parameter ID: `HAIR_LIGHT_TAG_SHADOW_SAMPLE_SIZE` · Range: [0..512]

Use this setting to define the radius within which shadow maps will be sampled, from which an average value can be ascertained. Simply put: The larger the sample size, the softer the shadow will be.

### Shadow Map

Parameter ID: `HAIR_LIGHT_TAG_SHADOWS_MAP`

### Resolution

Parameter ID: `HAIR_LIGHT_TAG_MAP_SIZE` · Range: [64..16384]

![Image: 005379.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/005379.jpg)\
Increasingly large shadow maps from top to bottom. Notice also the slight change in the shadows cast within the hair itself.