# Polygon two sides

{% hint style="info" %}
**Two sides** refer to the common practice in 3D modeling where only one side of the model's surface is rendered. This is typically the side visually displayed. However, when rendering both sides, the system needs to perform double the graphic work, which can affect performance.
{% endhint %}

Some platforms discourage the use of Two sides to maintain optimal performance. In addition, there are instances where using Two sides can be a reason for rejection during evaluation.

1. Only ensure that the backside of the polygon is not visible.

<figure><img src="/files/FKtK1qYMDVdPXYNrA3jB" alt=""><figcaption></figcaption></figure>

2. For simple cases, as shown in the picture, the most efficient way to save on polygon count is to block the holes.

<figure><img src="/files/184NTjT5T9MRefrUUsPo" alt=""><figcaption></figcaption></figure>

After the work, please organize the mesh's UVs and textures.

For further details, please refer to the \[topology guidelines].


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.altava.com/creator-guide/modeling-guidelines/polygon-two-sides.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.