The Precise UV Export add-on lets you export a pixel-perfect UV layout of a mesh to an image.
Convenient for making low-resolution pixelated textures, where the default UV export is not ideal.

Note: This addon only works with Blender 3.0.0 or above.

How to install:

1. Download the latest release or clone this repository.
2. Install precise_uv_export.py in Blender's preferences.
3. Enable the add-on.

How to use:

1. Open the UV Editor view.
2. Open the UV drop-down menu.
3. Press Export Precise Layout.

The exported image takes the size of the image in the editor, or 16x16.
Each island in the UV layout is coloured in a different shade of grey.

These settings can be changed during the exporting process.