Unity Icon Generator

A simple Unity tool for generating PNG icons directly from a camera view.

Created by Tomi Illes

https://tamas-illes.com

This project contains a lightweight utility script that renders a camera view to a texture and saves it as a .png file.

It can be used for:

• inventory icons
• item icons
• UI thumbnails
• asset previews

Repository:
https://github.com/T0M13/Unity_Icon_Generator

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Preview

Example icon generated with the tool:

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Features

• Generate PNG icons directly from a camera
• Custom output folder
• Custom file name
• Custom resolution
• Optional fallback to the GameObject name if no file name is entered
• Works in the Unity Editor
• No need to start the scene or enter Play Mode
• Simple setup and quick export

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Project Structure

Assets
│
├─ Project
│  ├─ Edited_Icons
│  │   Example edited icons
│  │
│  └─ Generated_Icons
│      Icons generated by the script
│
├─ Scenes
│  └─ Icon_Generation_Scene.unity
│
├─ Scripts
│  └─ IconGenerator.cs
│
├─ Thirdparty
│  └─ Rubber Duck demo model
│
└─ Settings
   Unity project settings

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How It Works

The IconGenerator script captures the image rendered by a dedicated camera and saves it as a PNG file.

Internally the process works like this:

1. A RenderTexture is created using the selected resolution.
2. The assigned camera renders the object into that RenderTexture.
3. The rendered image is copied into a Texture2D.
4. The texture is encoded into PNG format.
5. The PNG file is saved to the specified folder.

This allows Unity to render exactly what the camera sees and export it as an icon.

Because the function runs directly from the component, the scene does not need to be running.

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Setup

1. Open the demo scene
   Assets/Project/Scenes/Icon_Generation_Scene.unity

2. Select the GameObject that contains the IconGenerator script.

3. In the Inspector assign the Icon Camera.

4. Configure the output settings.

Setting	Description
Icon Camera	Camera used to render the icon
Folder Path	Folder where the PNG will be saved
File Name	Name of the exported icon
Resolution	Icon size (example: 512)
Use GameObject Name If Empty	Uses the GameObject name if no filename is set

Example configuration:

Folder Path: Assets/Project/Generated_Icons
File Name: RubberDuck_Icon
Resolution: 512

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Capturing an Icon

You do not need to run the scene.
You do not need to enter Play Mode.

To generate an icon:

1. Select the GameObject with the IconGenerator script.
2. In the Inspector locate the script component.
3. Click the three dots in the top-right corner of the component.
4. Select Capture Icon.

This executes the function immediately and saves the PNG file.

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Output

The icon is saved as:

[FolderPath]/[FileName].png

Example:

Assets/Project/Generated_Icons/RubberDuck_Icon.png

If the filename field is empty and Use GameObject Name If Empty is enabled, the GameObject name will be used instead.

Demo Asset

This repository includes a small rubber duck model used to demonstrate how the icon generator works.

The demo asset is located in: Assets/Thirdparty

You can replace the demo object with any other prefab or model to generate new icons.

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Installation

Use the full project

Clone or download the repository and open it in Unity.

Use only the script

Copy this file into your own project: Assets/Scripts/IconGenerator.cs

Then attach the script to a GameObject and assign a camera.

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Author

Tomi Illes
https://tamas-illes.com

GitHub
https://github.com/T0M13/Unity_Icon_Generator

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License

MIT License

Copyright (c) 2026 Tomi Illes