# Zepeto
### Platform features
* [Paint layers](#paint-layers)
* [Morphing](#morphing)
* [3d accessories](#3d-accessories)
## Software
Work must be carried out using the following software:
* **Blender** - no specific version (final model placement with all textures and skeleton)
* **Unity 2020.3.9f1**
* You will also need **Unity project** from Zepeto, you can download it either from this [link or go ](https://disk.yandex.ru/d/wRdBFJ1lwmybAQ)to the official [website](https://studio.zepeto.me/ru/guides/world-130) of Zepeto and download it there.
* Chose[ reference ](https://wiki.customuse.com/platform-basics/choosing-references)
## Model preparation
### Modelling
Using "mannequins" which are also called **masks** is a strict **requirement** of the platform.
Mask defines the area to hide in Zepeto, so without it outfit won't work properly.
{% hint style="info" %}
You can find **mask** by this [link](https://studio.zepeto.me/guides/creating-your-item-3d-modelers-1)
{% endhint %}
#### Mask
On the mannequin itself, you must make a vertex mask.
The area covered by your clothes should be **black**, and the remaining area that your clothes model does not cover should be **white**.
{% hint style="info" %}
With vertex mask, Unity can see which area of the character model is covered by your clothes and won't render it, thus increasing optimization.
{% endhint %}
Restriction on polygon quantity
* **Dress** - 8700 polygons.
* **Outerwear** - 4700 polygons
* **Trousers** - 3700 polygons
* **Shoes** - 3700 polygons
* **Headwear** - 3700 polygons
* **Gloves** - 3700 polygons
* **Bag** - 3200 polygons
Be sure to check out [the instructions ](https://studio.zepeto.me/console/guides/creating-your-first-item-3d-modelers_1)on the official Zepeto website.
### **UV Layout**
UV Layout uses general standards.
{% hint style="info" %}
Check general UV Layout requirements [here](https://wiki.customuse.com/platform-basics/uv-layouting).
{% endhint %}
There is one nuance in Zepeto pipeline:
On the UV map, there should be **1/5 of an area free** (image below), the area should be empty of UV islands and white on texture. This area is reserved for UV of [**accessories**](#3d-accessories) in case they will be added.
UV layout example
### Texturing
{% hint style="info" %}
Maximum allowable texture resolution: **512x512** in **png** format.
{% endhint %}
The model itself can be painted in any program convenient for you, the main thing is that in the end, the textures should be as optimized as possible.
Zepeto uses 2 textures:
* **Albedo**
* **Normal map**
### Materials
* The use of procedural shaders is **not** required.
* A standard "Principled BSDF" shader and a set of PBR textures will be sufficient
* The **number** of materials per object - 1
{% hint style="info" %}
More information on the materials is at this [link](https://studio.zepeto.me/guides/creating-your-item-3d-modelers-2).
{% endhint %}
### Rigging
It is necessary to add animation bones to the model, and correctly distribute weights for the bones to work properly.
One way to rig for this platform:
* Download that category of clothing model from the zepeto website that you are modelling.
* Take its bones, bind them to your model and copy the weights from the model you downloaded to your model.
{% hint style="info" %}
Examples of models you can find on this [link](https://studio.zepeto.me/guides/creating-your-own-world)
{% endhint %}
### Paint layers
Paint layers use general standards. No unique features on Zepeto here.
{% hint style="info" %}
Check general Paint Layers requirements [here](https://wiki.customuse.com/platform-basics/paint-layers).
{% endhint %}
### Naming
Naming uses general standards. No unique features on Zepeto here.
{% hint style="info" %}
Check general Naming requirements [here](https://wiki.customuse.com/platform-basics/naming-convention).
{% endhint %}
### Morphing
Morphing for the Zepeto requierments:
* You need to be sure that after your shaping cloth will fit the body
{% hint style="info" %}
Check general Morphing requirements [here](https://wiki.customuse.com/platform-basics/morphing).
{% endhint %}
### 3D Accessories
Accessories will have a texture that[ **fills 1/5 of the 2D Canvas**](#texturing)**.**
Accessories don't have a material, they copy the material from the parent model and also will get automatic weights
{% hint style="info" %}
You can find more information [here](https://wiki.customuse.com/platform-basics/3d-accessories)
{% endhint %}
### Exporting
Before exporting your model, make sure you have done all the steps correctly.
You must export at least 3 objects in one file:
* character mesh with vertex mask
* bones and your
* model
The character and your model must be in **t-pose**.
There must be **no textures** in the materials.
The export must be in **FBX** format.
#### Unity
{% hint style="info" %}
You can find the video of conversion to .zepeto in Unity at this [link](https://drive.google.com/file/d/1t5AbzPow2fPIqA14miOP_n94oS5jSr9a/view)
{% endhint %}
## **Final check and** [**upload**](https://wiki.customuse.com/introduction/contributor-hub)
{% hint style="info" %}
Before sending a blender file, make sure that the file is cleaned of unnecessary elements (the model must have one UV map; there must be no vertex masks in the model; the file can’t contain unnecessary elements that do not belong to the model, etc.)
{% endhint %}
Checklists
#### Blender
1. Checking the names of meshes, materials, models, textures, etc.
2. If possible, unfold UV elements into rectangles
3. We check that the model is divided into islands (UV) by colours. So that there is a sim on the border of flowers.
4\. Checking that Individual meshes adjacent to each other have a uniform weight colour
5\. Check that the mask border is clear, without blurry edges
#### Unity
1. We check that in Unity, on deformations, parts of the body do NOT show through from under clothes
2\. Checking the correct scale and rotation
3\. After uploading the zepeto file to the platform, check the animations in the app (incorrect work of weights)
#### Paint layers
1. I check paint layers, their order, and dimensions. Check that the non\_paint layer (if there is one) does not overlap other layers
#### Customuse viewer
1. Checking whether the model looks correct in the “Customuse” viewer
2. Checking if the paint layers are working correctly
3. Check how the superimposed image looks on top of the model (stickers, third-party pictures, etc. By UV scan)
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4\. Checking that Individual meshes adjacent to each other have a uniform weight colour
