forked from KolibriOS/kolibrios
43 lines
1.0 KiB
Lua
43 lines
1.0 KiB
Lua
--BRUSH Distortion: Waves v1.0
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--by Richard Fhager
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--http://hem.fyristorg.com/dawnbringer/
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-- Copyright 2010 Richard Fhager
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--
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-- This program is free software; you can redistribute it and/or
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-- modify it under the terms of the GNU General Public License
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-- as published by the Free Software Foundation; version 2
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-- of the License. See <http://www.gnu.org/licenses/>
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-- This script was adopted from Evalion, a Javascript codecrafting/imageprocessing project
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-- http://goto.glocalnet.net/richard_fhager/evalion/evalion.html
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--frq = 2
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--amp = 0.3
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-- Adjust power of frequency & amplitude
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frq_adj = 2
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amp_adj = 0.02
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ok,frq,amp = inputbox("Settings",
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"Frequency 1-10", 3, 1,10,0,
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"Amplitude 1-10", 3, 1,10,0
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);
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w, h = getbrushsize()
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for y = 0, h - 1, 1 do
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for x = 0, w - 1, 1 do
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ox = x / w;
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oy = y / h;
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ox = (1 + ox + math.sin(oy*math.pi*frq*frq_adj)*amp*amp_adj) % 1;
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c = getbrushbackuppixel(math.floor(ox*w),y);
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putbrushpixel(x, y, c);
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end
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end
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