---
title: "I've enabled normal map packing, but all sprites are placed on the same texture."
description: "By default, TexturePacker tries to auto-detect normal map images. Manual configuration of normal map file paths is also supported."
canonical: "https://www.codeandweb.com/texturepacker/knowledgebase/normal-map-detection"
product: "texturepacker"
source: "html"
---

# I've enabled normal map packing, but all sprites are placed on the same texture.

By default, the "Auto-detect" feature identifies normal maps based on their color values and links them to sprites with similar file names.

If this heuristic doesn't work as expected, you can disable "Auto-detect" and manually specify how normal maps are identified using one of the following methods:

### Path filter

TexturePacker will treat images as normal maps if their file path contains a specific keyword. This is useful if you store all normal maps in a dedicated folder (e.g., `normals/`):

```
sprites/sprite1.png
sprites/sprite2.png
normals/sprite1.png
normals/sprite2.png
```

### Normal map suffix

Alternatively, you can define a suffix that marks normal maps. This is helpful if your normal maps follow a consistent naming convention, such as `_n`:

```
sprite1.png
sprite1_n.png
sprite2.png
sprite2_n.png
```

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