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    To get a cylindrical noise field in Wilbur, use Filter>>Calculate Height Field. Select Type=Math Function and enter "ridged(1*cos(2*pi*ix/ixsize),1*sin(2*pi*ix/ixsize),4*iy/iysize)" as the expression. The 1* terms are the radius of the cylinder in noise space (larger values will get smaller noise) and the 4* term is the height of the cylinder in noise space. "ridged(x,y,z)" is the ridged fractal noise function ( "fbm(x,y,z)" is the fractional brownian motion function ). The "ix/ixsize" term computes a function from 0 to 1 horizontally in the image; the "iy/iysize" term computes a function from 0 to 1 vertically in the image. 2*pi*t converts a number from 0 to 1 into one ranging from o to two*pi (in other words, an angle). The cos(t),sin(t) item computes x and y from an angle t.
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    Thanks for the REP on July's Challenge !!
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    Thanks for the Rep, glad you liked it.
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About Thurlor

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Date of Birth
December 17, 1977 (36)
About Thurlor
Phillip Island, Victoria, Australia
Reading, Writing, Mapping, 3D Art/Design, Sci-Fi, Fantasy, Gaming, Animals, History and more.
Unemployed/Stay@Home Dad


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11-22-2013 12:33 AM
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10-28-2014 03:51 AM
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  1. Thurlor
    Thurlor liked post by Schwarzkreuz On thread : [WIP] The Southern Domain
    New Mountains. This time I try to incoporate the scale of the mountains better.
    Liked On: 12-05-2013, 03:35 AM
  2. Thurlor
    Thurlor liked post by - Max - On thread : Oraven - Dunral - fantasy map
    Hi all, Here's another map from Oraven's world, this time the map of Dunral, a small coastal village. It's 8,5x11" size and hand drawn in Photoshop, attached are color and greyscale versions. ...
    Liked On: 12-05-2013, 02:31 AM
  3. Thurlor
    Thurlor liked post by Lingon On thread : Style test, 18th century/fantasy mix
    Here's a small thingy I've been working on for a couple of days… Not really a project or anything, just trying to come up with a new style, as I'm a bit tired of my usual one. This is obviously a...
    Liked On: 12-02-2013, 08:47 PM
  4. Thurlor
    Thurlor liked post by - Max - On thread : Esnia - Commission map
    Hi all, Here's a commissionned piece made lately for a RPG GM, 8x11,5" in photoshop. 59416 Hope you'll like it. As usual, feel free to rate, rep or run away :)
    Liked On: 11-28-2013, 06:46 PM
  5. Thurlor
    Thurlor liked post by Psylence On thread : November/December Lite Challenge Entry: Human Colonies of King Alfred Williby the 3rd
    Oh you all... stop, you're gonna make me blush! ;) But seriously, thanks for the feedback on the border. At first I wasn't all that happy with it, but the more I look at it the more I stroke my...
    Liked On: 11-28-2013, 12:50 AM
  6. Thurlor
    Thurlor liked post by HandsomeRob On thread : Sultanate of Zender
    Here's another sultanate. This map took about two weeks to finish, and involved drawing a lot of intricate little mountain ranges. I'm pretty happy with how it turned out. Any questions or...
    Liked On: 11-21-2013, 04:50 AM