Page 1 of 2 12 LastLast
Results 1 to 10 of 58

Thread: [Award Winner] Making Not so Random Coastlines in GIMP - alternative method

Hybrid View

  1. #1
    Administrator RobA's Avatar
    Join Date
    Apr 2007
    Location
    Niagara, Canada
    Posts
    5,567

    Tutorial [Award Winner] Making Not so Random Coastlines in GIMP - alternative method

    I just posted this tutorial on making coastlines based on pre-defined shapes.

    Two things I don't like are the slight blurriness in the coastline, and the inability to play with the effective water-level (like you can do with the threshold method).

    SO to this end, I came up with a variation on the threshold level as an alternative to my other not-so random coastline tutorial, this time with clever use of multiplying levels, rather than differencing levels.

    Here is the "Not So Random Coastline Tutorial - alternative method"

    NOTE: There is a description by Juggernaut1981 on creating multiple islands an still maintaining detail that gets inserted after step 7. Jump over there for the details!
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	m3.jpg 
Views:	2406 
Size:	920.5 KB 
ID:	24167  
    Last edited by RobA; 04-27-2010 at 02:32 PM.

  2. #2
    Community Leader RPMiller's Avatar
    Join Date
    Apr 2006
    Location
    Watching you from in here
    Posts
    3,233

    Default

    You do realize that if you keep this up, I'm going to be in rep debt to you don't you?

    Good stuff! I have to spread some rep around before hitting you again, but I will. Perhaps someone else can rep you for me?
    Bill Stickers is innocent! It isn't Bill's fault that he was hanging out in the wrong place.

    Please make an effort to tag all threads. This will greatly enhance the usability of the forums.


    Find me on Google+

  3. #3
    Administrator RobA's Avatar
    Join Date
    Apr 2007
    Location
    Niagara, Canada
    Posts
    5,567

    Default

    One more addition...

    If you pick the "Turbulent" option in the cloud noise, this will have the effect of chopping up the shape much more. I used that to create an Atoll (attached) that shows the original white shape (outlined in yellow) and the resultant random coastline.

    -Rob A>
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	atoll.jpg 
Views:	729 
Size:	40.3 KB 
ID:	884  

  4. #4
    Community Leader Gracious Donor ravells's Avatar
    Join Date
    Jun 2006
    Location
    London, UK
    Posts
    10,930

    Default

    Rob this is brilliant! The ability to have the coastlines made for you while you do the general shapes is invaluable. It's a like having a very controlled fractallisation command.

    Rep? You can have my eye teeth!

    Ravs

  5. #5
    Administrator RobA's Avatar
    Join Date
    Apr 2007
    Location
    Niagara, Canada
    Posts
    5,567

    Default

    Gee Thanks! I just hope people find the techniques useful. I'd like to see what others end up doing with it!

    -Rob A>

    (p.s. what...no blush smiley?)

  6. #6
    Community Leader pyrandon's Avatar
    Join Date
    Feb 2007
    Location
    Michigan, USA
    Posts
    1,346

    Default

    Wow--amazing. And although written for GIMP, I can so yoink this for Phosotshop as well. Great great great. Repped!
    Don
    GM, Westaven
    My gallery is here
    __________________________________________________ _______
    "Keep your mind in hell, but despair not." --Saint Silouan [1866-1938]

  7. #7
    Community Leader Gracious Donor ravells's Avatar
    Join Date
    Jun 2006
    Location
    London, UK
    Posts
    10,930

    Default

    I tried this tutorial using Paintshop Pro last night and it worked like a charm. I'm going to try it again, but using different fills apart from noise to see if anything useful turns up. Thanks for the tut, Rob - very handy indeed.

    Ravs

  8. #8
    Community Leader Gracious Donor ravells's Avatar
    Join Date
    Jun 2006
    Location
    London, UK
    Posts
    10,930

    Default

    I keep telling RobA that he deserves Medals for this tutorial (I use this method pretty much all the time now)...but he's too modest to accept them!

  9. #9

  10. #10
    Guild Novice absinthesparrow's Avatar
    Join Date
    Aug 2009
    Location
    California
    Posts
    8

    Post

    Wow, this tutorial is incredible. I've always drawn maps by hand (and not well; it's sort of a side-hobby to writing), but I tried my current continental layout with this technique and it came out beautifully. Makes me wish I hadn't spent all that time coloring my hand-drawn map!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •