Color Groups – Frequently Asked Questions

1. How can I use the Color Groups to separate and edit different hair regions independently?

Color Groups allow you to divide hair into independently editable sub-regions. Here's how to use them:

• During hair grooming, enable the Color Groups feature;
• Use different Color Brushes to assign distinct regions;
• In the Color Groups panel, select a color group and click the Select button to isolate and edit only that region of hair;
• To exit isolation mode and return to editing all hair, press A. 

This feature greatly improves workflow efficiency for complex hairstyles, making it easier to control specific areas or styles.

2. Why can I only use the first two color groups and not any others?

This is a known bug in some system environments (e.g., Windows 11 + Blender 4.2), where the add-on has compatibility issues with color group handling. Symptoms include:

• New color groups beyond the first two cannot be activated;
• Each brush stroke generates a new color group, preventing selection of existing ones.

Solution:

• This bug has been fixed in Blender 4.3 and later versions. Please consider updating your Blender version.

3. Why does a new color group get created every time I groom? How can I keep using the same group?

This behavior is due to the current add-on logic, where a new group is generated with each brush stroke by default. The plugin does not yet support “locking” to an existing color group. To maintain a stable workflow, we recommend:

• First, use one brush stroke to define the first color group region;
• Then isolate this group using the Select button and continue editing within it;
• If you need a new group, switch to a new color and start grooming;
• Use A  to quickly switch between groups.

We are planning future updates to make color group handling more intuitive and flexible.