05. Optional Customization
Purpose
To properly complete a clothing Mod in inZOI Modkit,
you must understand and correctly configure the structure and fields of the Optional Customization file.
What is Optional Customization?
- A configuration data file that defines how each outfit functions in-game.
- It connects the FBX mesh and textures to the game, and sets values like thumbnail image, layer priority, gender, masking, tags, etc.
In short, all functional settings of a clothing mod are handled in the Optional Customization file.
Field Descriptions
| Field Name | Description |
|---|---|
Thumbnail |
Specifies the thumbnail image for the outfit |
GenderType |
Defines which gender can wear the outfit (Male, Female) |
BodyAgeType |
Specifies body type (Adult, Child) |
LayerPriority |
Determines rendering priority — higher number renders on top (e.g. Outer: 10, Top: 8, Bottom: 6) |
Drawing Regions |
Region IDs to be masked for this outfit (linked to UV2) |
Covering Regions |
IDs of lower-layer regions to be hidden by this outfit |
Body Regions |
Body mesh regions to hide when worn |
Tags |
Special tags (e.g. NoOuter to prevent layering with outerwear) |
Required / Optional Fields
| Field Name | Required | Description |
|---|---|---|
| GenderType | ✅ | Required for determining gender compatibility |
| BodyAgeType | ✅ | Required for defining body type |
| LayerPriority | ✅ | Required for correct layer rendering order |
| Drawing Regions | ✅ | Must be defined using UV2 |
| Covering Regions | 🔺 | Set if overlap with lower clothing occurs |
| Body Regions | 🔺 | Use when body parts need to be hidden |
| Tags | 🔺 | Optional conditions or restrictions |
Using the Modkit Wizard
Modkit provides a Wizard UI for beginners:
- Allows dropdown selection for gender, category
- Region IDs can be selected from a predefined list (individual or grouped)
- You can create configuration files without using a text editor
However, after using the Wizard, you must still be able to edit manually for advanced setup.
Mistake Prevention Checklist
| Situation | Cause | Solution |
|---|---|---|
| Color customization doesn’t work | - Missing alpha channel - RGB Mask missing - Custom Color Intensity not set |
- Check texture setup - Set Custom Color Intensity = 1 |
| Body mesh overlaps outfit | BodyRegions not set |
Add appropriate region IDs |
Summary
- Optional Customization defines how your clothing Mod behaves in-game
- Most settings can be done via Wizard UI,
but you should be comfortable with manual editing for advanced customization - Correct Region IDs, proper LayerPriority, and appropriate Tags are key