====== ArmA 3 Terrain Grid and Cell Sizes ======

[[https://www.pmctactical.org/forum/viewforum.php?f=68|ArmA 3 Forum]], [[:arma3|ArmA 3]], [[arma3:config|ArmA 3 Config]], [[arma3:missions|ArmA 3 Missions]], [[arma3:modeling|ArmA 3 3D Modeling]], [[arma3:scripting|ArmA 3 Scripting]], [[arma3:terrain|ArmA 3 Terrain]], [[arma3:texturing|ArmA 3 Texturing]], [[arma3:tools|ArmA 3 Tools]]

This page is "modular" or "inheriting" so first you must read [[arma:terrain:grid_cell_size|arma terrain grid and cell sizes]] page to know the background and other sizes than listed below.

What size is your terrain? How to describe it on forums / chats? What size are official bis terrains? 

New capability in ArmA 3 is that it / terran builder now supports 8192 grid heightmaps. Note: 8192 grid heightmaps make terrain builder extremely unstable (freezes or even crashes are normal behavior), it is not recommended to be used unless you are //experienced// terrain developer.

**Do NOT use 8192 grid heightmap!**
^ Grid Size ^ Cell Size ^ Kilometer x Kilometer ^
| 8192 | 50 | 409.6 |
| 8192 | 40 | 327.68 |
| 8192 | 30 | 245.76 |
| 8192 | 20 | 163.84 |
| 8192 | 10 | 81.92 |
| 8192 | 9 | 73.72 |
| 8192 | 8 | 65.53 |
| 8192 | 7 | 57.34 |
| 8192 | 6 | 49.15 |
| 8192 | 5 | 40.96 |
| 8192 | 4 | 32.76 |
| 8192 | 3 | 24.57 |
| 8192 | 2 | 16.38 |
| 8192 | 1 | 8.19 |
| 8192 | 0.5 | 4 |
**Do NOT use 8192 grid heightmap!**

The km x km is the standard we have used since 2001 OFP era. To explain your terrain size use "km x km" or just "km" for example "40km terrain" to keep it simple. Never use any other odd mumbo jumbo value system.

Some terms for below table:\\
**Satellite Tile** is NOT satellite "texture", it is the TILE to which satellite texture is chopped. These tiles can be found in Layers\ dir as *.paa files.\\
**Texture Layer** is internal WRP tech which is complicated to explain and basically is useless info in this pages context but we added it to be thorough.

**Official bis terrain specifications**
^ Terrain ^ Grid ^ Cell ^ Satellite Tile ^ Texture Layer ^ Objects ^ Kilometer x Kilometer ^
| Altis | 4096 | 7.5 | 1024 | 30 | 1,779,908 | 30.72 |
| Chernarus | 2048 | 7.5 | 512 | 30 | 1,055,157 | 15.36 |
| Desert_E | 512 | 4 | 64 | 32 | 1,810 | 2 |
| Livonia | ? | ? | ? | ? | ? | 12.8 |
| Malden 2035 | 1024 | 12.5 | 512 | 25 | 620,038 | 12.8 |
| Provinggrounds | 512 | 4 | 64 | 32 | 18,970 | 2 |
| Shapur | 512 | 4 | 64 | 32 | 8,291 | 2 |
| Stratis | 2048 | 4 | 256 | 32 | 163,953 | 8.19 |
| Takistan | 2048 | 6.25 | 256 | 50 | 438,906 | 12.8 |
| Tanoa | 4096 | 3.75 | 512 | 30 | 1,675,073 | 15.36 |
| TOH Seattle | 4096 | 15 | 1024 | 60 | 2,284,713 | 61.4 |
| TOH South Asia | 4096 | 30 | 1024 | 120 | 1,160,307 | 122.8 |
| Utes | 512 | 10 | 128 | 40 | 17,474 | 5.12 |