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Thread: Tilt the texture for a planet (to load on a videogame)

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  1. #1

    Default Tilt the texture for a planet (to load on a videogame)

    hi everyone,

    It's my first time on this forum so I hope I'm posting this question on the right sub-forum.

    If I need to move it just let me know, and thanks to everyone in advance for the help!

    Now, this is my problem.

    I'm trying to modify the texture of a planet from a videogame called Kerbal Space Program

    the texture is this one

    and the 3D planet looks like this

    what I want to do is modify the texture such as when it's loaded into the game the planet will look tilted 90°

    so basically I have to put the current north pole and south pole at the equatorial level (the middle of the image)

    I've tried different ways to do it with gimp, but the resulting image has always some distortion.

    Do anyone know a way to do this?

    thanks again for your help, if you need any more info just let me know.

    Licensing:
    the Images are from "OuterPlanetsMod" for Kerbal Space Program

  2. #2
    Guild Artisan su_liam's Avatar
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    The Photoshop filter Flexify from Flaming Pear can do that pretty easily, but it's not cheap if you don't already have it. Matthew's Map Projection Software, which I've been flogging bloody, can do the same thing from command line, but it's free…
    Let that soak in. Free.

  3. #3

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    Quote Originally Posted by su_liam View Post
    The Photoshop filter Flexify from Flaming Pear can do that pretty easily, but it's not cheap if you don't already have it. Matthew's Map Projection Software, which I've been flogging bloody, can do the same thing from command line, but it's free…
    Let that soak in. Free.
    hmmm command line

    do I need linux?

  4. #4
    Guild Expert johnvanvliet's Avatar
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    i make planet textures for Celestia and other space programs

    what you want to do can be done a few different ways

    BUT from the terminal interface

    on MS Windows that is the crappy terminal "cmd.exe"

    MMPS can do this and it is FREE
    http://www.users.globalnet.co.uk/~arcus/mmps/

    not sure of Win10 but on Win 7 there is a power shell , a terminal that REALLY WORKS

    you can also use GDAL and the gdal_warp" tool ( uses proj4) to remap and place 90 north as 0 long and 90 south as 180 long
    ( and there is a MS windows version for "cmd.exe" )


    you can also use Blender a 3d program -- has a VERY steep learning curve

    to wrap a sphere with the texture rotate the sphere 90 degrees
    and bake a new texture
    Last edited by johnvanvliet; 08-08-2015 at 01:21 PM.
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  5. #5
    Guild Expert johnvanvliet's Avatar
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    to add
    for a -90 degree "pitch" rotation you can use the Hugin perl scripts " Panotools-Script" from Cpan
    http://hugin.sourceforge.net/
    scripts
    http://search.cpan.org/~bpostle/Panotools-Script/


    run this on the test map

    Code:
    erect2cubic --erect=lines10.tif --face=1024 --ptofile=lines10.pto


    seeing as this outputs a CUBE MAP to move the faces rotate image 1 and 3 + 90 deg. clockwise
    and rotate 4 180 deg.
    then reorder the faces
    Code:
    cubic2erect  5.png 1.png 4.png 3.png 0.png 2.png test
    and you get this



    a CUBE map is this -- for reference



    you can also do this manually from within the hugin GUI

    it is just that the time is greator

    from 1 minuet to about an hour
    Last edited by johnvanvliet; 08-08-2015 at 06:03 PM.
    --- 90 seconds to Midnight ---
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  6. #6

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    Quote Originally Posted by johnvanvliet View Post
    to add
    for a -90 degree "pitch" rotation you can use the Hugin perl scripts " Panotools-Script" from Cpan
    http://hugin.sourceforge.net/
    scripts
    http://search.cpan.org/~bpostle/Panotools-Script/


    run this on the test map

    Code:
    erect2cubic --erect=lines10.tif --face=1024 --ptofile=lines10.pto
    http://2.t.imgbox.com/roaamrvi.jpg

    seeing as this outputs a CUBE MAP to move the faces rotate image 1 and 3 + 90 deg. clockwise
    and rotate 4 180 deg.
    then reorder the faces
    Code:
    cubic2erect  5.png 1.png 4.png 3.png 0.png 2.png test
    and you get this
    http://6.t.imgbox.com/Kq65ZARR.jpg


    a CUBE map is this -- for reference
    http://0.t.imgbox.com/WTG2HfHk.jpg


    you can also do this manually from within the hugin GUI

    it is just that the time is greator

    from 1 minuet to about an hour
    this seems simple enough, I'll see if I can get it to work on my pc

    I'm guessing I should follow this http://wiki.panotools.org/Install_Pa...ipt_on_Windows
    Last edited by Sigma88; 08-08-2015 at 10:22 PM.

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