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Thread: Mars Map (redone)

  1. #11

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    Quote Originally Posted by Caenwyr View Post
    A suggestion (and your free to take it or leave it or do anything you want with it): if your aim is to make it look like a habitable world with seas and rivers, you might wanna try eroding the landscape a bit before you start colouring it in (Wilbur might help there). At the moment it looks like a parched, pockmarked world someone just dumped a few billion gallons of water on. Everything is filled in nicely, but there's no sign of a history of sedimentation, erosion, ... as you would have in an actual river-and-ocean world.
    The scientific consensus at this point is that Mars was once a river-and-ocean world. It does have a history of sedimentation, erosion, and so on. The Mars Science Laboratory Curiosity rover has provided pretty unequivocal evidence for lots of water-influenced features. If Ilanthar used DEM data, then he's got those features already!

    I think the issue you're seeing is that those features are difficult to see at the global scale of Ilanthar's map. And, in fact, every time NASA puts out a concept image of Mars in its primordial oceanic state, it looks kind of like a "pockmarked world someone just dumped a few billions gallons of water on."

  2. #12
    Guild Expert johnvanvliet's Avatar
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    . If Ilanthar used DEM data, then he's got those features already!
    the problem is with the MOLA data

    it is inferred from VERY sparse data using a spline curve fit ( i have work extensively with this data )
    the hirise stereo dems and stereo pairs of CTX images is needed
    this will be a while before it is near being done

    the river flows and flood plains seen in the imaging data is really not in the mola dem
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  3. #13

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    By Lingon
    Lol Ilanthar We should do a challenge of that, maps that look like animals…
    Something like "there's an animal hidden in this map, would you find it?" ?

    A before/after comparison would be interesting for me!
    Sure, here's a quick explanation of my current work :
    A piece of the base map
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    I just want the topography, so I removed the rest
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    I turn it in grayscale
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    Then a layer for the color of the water, and three other for the coastlines... My current test on a eighth of the map !
    Click image for larger version. 

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    What do you think of the coastlines?

  4. #14

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    I expand the colors and tried a few things. And I'm partly satisfied, the desert is probably too blank and to bright and I don't know if this is really working without getting further in the details anyway.
    Click image for larger version. 

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  5. #15

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    Many things are posing problems right now with this map... First, the source map is not using a gradiant from dark to bright for the altitude, hence a problem. Second, with this level of details, I realize than many rivers are just having impossible paths...
    My first try, with no corrections.
    Click image for larger version. 

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    Then I tried to correct the first issue by almost eliminating the constrast of the different colors, in PSP7.
    Click image for larger version. 

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    An other try with a comparable Inkscape filter.
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    Which one do you find better?

    Concerning the second problem, I think I'll probably change as much as I can the course of the problematic rivers...
    And I know I need to rework the snow. It's not at all what I want.

  6. #16
    Guild Expert Guild Supporter Lingon's Avatar
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    Quote Originally Posted by Ilanthar View Post
    Something like "there's an animal hidden in this map, would you find it?" ?
    Hehehe, exactly Thanks for the explanation! I like to see other people's processes, there's always something to pick up, and understanding what you're doing makes it easier to comment too! I love the colors you're putting on this, very Ilanthar-esque Regarding the three versions, I like the last one, it's subtler in the shading which I think is what a map of this size and detail level needs. Will be very interesting to see the rivers placed.

  7. #17

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    Thanks! The third had my preference too, but I wasn't sure if it wasn't too much.
    I reworked the snow and think it's better now.
    I've also done a few tests about rivers, cities and borders. The placements aren't correct, I'm just testing to see how it looks. I think I'll need the details and infos from the original map to do it right anyway.

    Click image for larger version. 

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  8. #18

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    Some more tests about fonts/labels, an exploration camp (hedekas, near mount olympus) and a portal in the "mist" (SE of Sayansk).
    Click image for larger version. 

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    I'm currently preparing the rest of the base map.

  9. #19

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    As always you never fail to inspire! I can't wait to see how this project unfolds and learn from it!

  10. #20
    Guild Expert Guild Supporter Lingon's Avatar
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    Östersund The new additions look great, nice fonts, lovely borders, cool symbols. The city dots could perhaps be a touch bigger, and less 3D-ish to fit more with the style of the borders? I'd also prefer less faint rivers, closer to the coastlines in thickness, though I guess that depends on how much other stuff you're going to put into the map and how important the rivers are.

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