# Grid-Based Texture Tiles

The simplest way to display custom ground textures is to store tiles of 1 by 1 degree in the following folders:

`%ProgramData%\Tacview\Data\Terrain\Textures\` or

`%APPDATA%\Tacview\Data\Terrain\Textures\`

The `SRTM` naming convention is used, where the file name begins with the latitude and longitude of the tile’s lower-left corner (for example, `S09E114.jpg`)

Tacview supports textures of any size as long as they are recorded in `WebP`, `PNG` or `JPEG` files. Both 24-bit and 32-bit formats are supported, which means that you can use the alpha channel of `WebP` and `PNG` files to smoothly blend an overlay on top of Tacview native terrain.

A suffix `T`/`B`/`C` (for example, `N42E008T.png`) can be added for each tile where

* `T` -> Transparent (50% merge with tacview default map)
* `B` -> Adaptive black outlines
* `C` -> Adaptive color outlines

Example texture packs are available in the [add-ons](https://www.tacview.net/download/addons/) section of the website.

See the [terrain tools](/tacview/customization/terrain/terrain-tools.md) which are available to help downloading and displaying grid-based texture files.

Make sure the option `Options` → `Terrain Display Mode` → `Custom Textures` is enabled.

![Terrain Textures - Menu Option](/files/vDUNjvDoBdTLFF0GEwHJ)

Read on to learn how to add a texture map.


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