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    So I have put a ton of effort into this map here. I would love to use the features available in my purchased fractale terrains software to set climates, rivers and other miscellaneous (read tedious) features. However I have having a very hard time of it trying to import my map. It is an equilrectangular plates cairre projection already.

    I think I need to somehow convert what I have to a .acf file so I can import it as a greyscale and apply it with the image overlay, but I cannot figure out a way how to do that, and even if I could I don't know if a general .acf could work. I would seriously love to get some help with this issue.

    Here is a link to the equirectangular map I initially made
    Here is a link to the equirectangular map that is a bit more seamless
    Here is a link to the map in 2-tone
    Here is a link to the map in it's first initial form
    And lastly here is a link to a web-app for looking at the map as a navigable globe
    • CommentAuthorjslayton
    • CommentTimeAug 10th 2017
    What kind of file uses the .acf extension? I don't recall FT3 being able to deal with that sort of extension.

    How did you generate the file? If you can modify the color ramp to grayscale rather than the green-to-orange ramp, then you can probably import that file directly into FT3 as a binary world file.
    If you select image overlays, then color-altitude conversions. Then load for the source image it asks for altitude color file .acf I can't figure that one out.

    I generated the image you mention using about five or six maps generated on that map to globe site on the highest settings then patched them together manually.

    I made this grey scale for importing, but I can't figure out how to make it a binary world file.
    • CommentAuthorjslayton
    • CommentTimeAug 10th 2017
    Ah... I thought you meant acf for the height map, not acf for the color to altitude conversion.

    There are a number of ways to convert the grayscale image into a binary file that FT3 can use, but the simplest is probably via Wilbur ( ).

    In Wilbur:
    1) Use File>>Open to load your PNG file as a grayscale image file
    2) Use Filter>>Mathematical>>Offset with a value of -128 to drop the oceans below sea level. Your terrain is now ranging from about -128 to about +127.
    3) Use Filter>>Mathematical>>Scale with a value of 70 to scale your terrain from about -9000 to +9000 (assume meters for units in FT).
    4) Use Surface>>Rotate>>Flip Vertically to account for a bug in the Wilbur to FT transfer process
    5) Use File>>Save As with file type MDR Surface to save your file. Accept the default parameters.

    In FT:
    a) Use File>>New to bring up the new world wizard
    b) Select Binary File and click Next to bring up the Binary Data page
    c) Click Choose Elevation File to bring up the Binary Data dialog
    d) Click the ... button to bring up a file picker
    e) Select your MDR file saved in step 5 of the Wilbur process and click OK. You should see information about your world
    f) Set the Map Edges to Top=90, Left=-180, Right=180, and Bottom=-90
    g) Click OK to accept the data definition and dismiss the Binary Data dialog
    h) Click Next to bring up the Summary page
    i) Click Finish to finish the world operation
    j) Enjoy your new world

    If you would like to eliminate the external dependence on the binary file:
    Use Map>>World Setting to bring up the World Settings property sheet.
    Select the Editing page.
    Select Custom and enter 6000 (your world's editing resolution) as the value.
    Click Apply to accept the new editing value.
    Use Tools>>Actions>>Burn Into Surface to convert the altitude into offset editing values.

    You can now use normal FT editing operations.
    Oh my gosh thank you so much. My only other question if you can possibly answer it is can I "redraw" my map in the normal fractal mode based on the existing geometry some way? As it stands the map is very pixelated/blocky.
    • CommentAuthorjslayton
    • CommentTimeAug 11th 2017
    How hard it would be to redraw your map would depend mostly on how much detail that you want to preserve. To reintroduce some fractal detail, use Tools>>Global Set>>Land Roughness Edit with a value around 0.25. Unfortunately, your map has very high landmasses and huge cliffs on all of the coastlines that are leftover from how you generated your world values and those high values will always keep your coastline blocky. One way to mitigate the high coastlines might be to just blur along the coastline, but there isn't a simple way to do that directly in FT.

    If you're not strongly married to the way that the internal elements of the map are laid out (or even if you are), you might be able to get good results using Wilbur to rough in the terrain from your basic map outline and some information about mountains. The attached image shows what such a result might look like in FT after following the processes suggested at (the PDF almost at the bottom of the topic).
    • CommentTimeAug 11th 2017
    Can you use the above method to convert a greyscale png of an AE hemispheres world to FT via Wilbur? I would like to do this for Myirandios, my world previously featured on this forum.
    • CommentAuthorjslayton
    • CommentTimeAug 11th 2017 edited
    The techniques suggested by Ralf at for reprojecting and assembling pieces should still be applicable (Jhendor was a polar aspect rather than equirotial, but the principles apply). The major change is that the URL for ReprojectImage is now instead of You may also find it easier to use the MDR file format as the intermediate format from Wilbur FT rather than the dte format as suggested in Ralf's tutorial. The FT steps referenced above should be the same.

    There are many tools that let you reproject images, including most GIS tools (QGIS being a popular one). I wrote ReprojectImage to be easy to use as a front end for reprojecting images for use with FT and with things like raytracing software. ReprojectImage suffers from some limitations and assumes that your input will be square to the image edges.

    As a quick note, I just updated the ReprojectImage file to a build that includes aspect information. Due to an oversimplified UI in ReprojectImage (including the unpleasant feature that you must enter numbers for sizing), you'll need this operation to make things work correctly for the AE hemispheres kind of map. The example image shows a quick chop on the image of your Myirandos map. I was a little sloppy in placing the source grids and scaling, which makes the output look a little glitchy around the edges. The same technique will work for a grayscale height map, where it would be less likely to have issues with wobbly grid lines.