D3F3CT3D 25 Posted November 8, 2016 arma:terrain:grid_cell_size Terrain Grid and Cell Sizes Terrain grid and cell sizes explained by Snake Man, PMC. If you do not know how large your terrain is, or someone is reporting on the forums that he made this and that sized terrain, here is the table to once and for all explain to you how big (or small) is a terrain of certain specification. Grid size is the important factor as OFP/ArmA (and so far that we've heard ArmA 2 also) engines only handle power of two grid sizes. Grid size Cell size km x km Square km 4096 50 204.8 41943.04 4096 40 163.8 26843.55 4096 30 122.8 15099.49 4096 20 81.9 6710.886 4096 10 40.9 1677.722 4096 8 32.7 1073.742 4096 6 24.5 603.9798 4096 4 16.3 268.4355 Grid size Cell size km x km Square km 2048 50 102.4 10485.76 2048 40 81.9 6710.8864 2048 30 61.4 3774.8736 2048 20 40.9 1677.7216 2048 10 20.4 419.4304 2048 8 16.3 268.435456 2048 6 12.2 150.994944 2048 4 8.1 67.108864 Grid size Cell size km x km Square km 1024 50 51.2 2621.44 1024 40 40.9 1677.7216 1024 30 30.7 943.7184 1024 20 20.4 419.4304 1024 10 10.2 104.8576 1024 8 8.1 67.108864 1024 6 6.1 37.748736 1024 4 4 16.777216 Grid size Cell size km x km Square km 512 50 25.6 655.36 512 40 20.4 419.4304 512 30 15.3 235.9296 512 20 10.2 104.8576 512 10 5.1 26.2144 512 8 4 16.777216 512 6 3 9.437184 512 4 2 4.194304 Grid size Cell size km x km Square km 256 50 12.8 163.84 256 40 10.2 104.8576 256 30 7.6 58.9824 256 20 5.1 26.2144 256 10 2.5 6.5536 256 8 2 4.194304 256 6 1.5 2.359296 256 4 1 1.048576 And so far I've never seen anybody do smaller than 256 grid size terrains, but maybe at this point you can already calculate yourself how small those terrains would be. All BIS made terrains were as follows: Name Grid size Cell size km x km Square km OFP islands 256 50 12.8 163.84 ArmA and ArmA 2 terrain information has been disabled now as the info we get from WRP doesn't compare with what we have ingame. For example ingame Chernarus is 15.3km x 15.3km in size, however the WRP says grid 2048 and cell 30m… Stay tuned :) arma/terrain/grid_cell_size.txt · Last modified: 2009-06-24 10:42 (external edit) Original link: http://webcache.googleusercontent.com/search?q=cache:OFomozroRkAJ:pmc.editing.wiki/doku.php%3Fid%3Darma:terrain:grid_cell_size&num=1&hl=en&gl=ca&strip=1&vwsrc=0 2 Share this post Link to post Share on other sites
Snake Man 407 Posted November 8, 2016 Dead site? What are you talking about dead site? PMC Editing Wiki is up and will never go down (as in stopped, put down, quit etc). We just recently changed web hosting company, if there are some problems reaching any of the PMC sites, please let me know preferably in private message so I get email notification about it (quicker than randomly seeing new topic). Share this post Link to post Share on other sites
RoF 241 Posted November 8, 2016 Dead site? What are you talking about dead site? PMC Editing Wiki is up and will never go down (as in stopped, put down, quit etc). We just recently changed web hosting company, if there are some problems reaching any of the PMC sites, please let me know preferably in private message so I get email notification about it (quicker than randomly seeing new topic). Yeah I thought same thing as I was on the page the other day http://pmc.editing.wiki/doku.php?id=arma:terrain:grid_cell_size Share this post Link to post Share on other sites
D3F3CT3D 25 Posted November 9, 2016 The page is not loading for me at all , but i changed the description. Share this post Link to post Share on other sites
pvt. partz 248 Posted February 26 So I am having a lot of trouble getting a new project started in Reforger Enfusion. I've been diving into the deep end hoping things will somehow work and I can finally start seeing something that looks like a terrain. I'm failing miserably so I decided that I would step back and try to learn how terrains are made (structured). My search for "grid, cell, square km's (final area of a terrain) and I found this, somewhat old page. My question, is the data listed above still relavant and secondly, what choice is the most efficient depending on whether I start with a really small one or in the future if I decide to go a bit larger. It seems like a great guide to go by. I would also be grateful for more direction on figuring out the process. Share this post Link to post Share on other sites
EO 11277 Posted February 26 10 minutes ago, pvt. partz said: So I am having a lot of trouble getting a new project started in Reforger Enfusion. I've been diving into the deep end hoping things will somehow work and I can finally start seeing something that looks like a terrain. I'm failing miserably so I decided that I would step back and try to learn how terrains are made (structured).... Have you checked out the WIKI?.... lots of info on how to get setup correctly. Share this post Link to post Share on other sites
pvt. partz 248 Posted February 26 Yes, in fact, that page + the Atlas were the first two resources I started with. I'm just now guessing that the OP's data might be a bit dated, especially with a much more efficient Engine but I'm not sure. I tried starting 4 different terrians and just couldn't get the heightmaps to play nice, thus my retreat back to square one and trying to figure out how this stuff works. If I could get lucky and have at least one of my starters work (shear luck on my part) I could then reverse engineer and see what went right. ...kinda light tearing open my first transistor radio just to see how it worked. 😁 Quote Have you checked out the WIKI?.... lots of info on how to get setup correctly. Well, true but not really much on the cell, grid etc, which is where I am relly stuck. ...I can get the SatMAp quite easily but that friggin HeightMap, jeeze! Share this post Link to post Share on other sites
Snake Man 407 Posted February 27 PMC Tactical Forum PMC Editing Wiki: home page PMC Editing Wiki: ArmA 3 root page PMC Editing Wiki: ArmA 3 Terrains PMC Editing Wiki: ArmA 3 Ultimate Terrain Tutorial PMC Editing Wiki: The Atlas by Jakerod PMC Editing Wiki: ArmA 3 Real World Data Terrain Tutorial Just some basic ArmA 3 terrain editing tutorials and forum links, always go to the original source to avoid unnecessary confusion. If anyone has any questions about terrain sizes, grid sizes, cell sizes, editing terrains or anything related, feel free to post into PMC Tactical forum ArmA 3 Editing area and I'll answer to every question. 1 Share this post Link to post Share on other sites
RoF 241 Posted March 1 On 2/26/2024 at 9:51 PM, pvt. partz said: ...I can get the SatMAp quite easily but that friggin HeightMap, jeeze! Heightmap and sat is easy to get with qgis plugin https://gitlab.com/Adanteh/qgis-game-terrains/-/wikis/home Also I think BI recommend you use 2m cell in reforger, as some of the buildings have basements. So it would be hard to hide holes in the terrain with higher size, as the buildings were made with 2m in mind. Reforger has a size limit compared to A3, which is about 31km... I "think". I gave up on Reforger awhile ago, so maybe some of the info has changed since then (doubt it knowing BI) Share this post Link to post Share on other sites
pvt. partz 248 Posted March 1 Quote 2m cell in reforger ...interesting...and thanks Share this post Link to post Share on other sites
