35 lines
880 B
Lua
35 lines
880 B
Lua
--BRUSH: Halfsize with smoothscaling
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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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w, h = getbrushsize()
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setbrushsize(math.floor(w/2),math.floor(h/2))
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for x = 0, w - 1, 2 do
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for y = 0, h - 1, 2 do
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r1,g1,b1 = getcolor(getbrushbackuppixel(x,y));
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r2,g2,b2 = getcolor(getbrushbackuppixel(x+1,y));
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r3,g3,b3 = getcolor(getbrushbackuppixel(x,y+1));
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r4,g4,b4 = getcolor(getbrushbackuppixel(x+1,y+1));
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r = (r1 + r2 + r3 + r4 ) / 4;
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g = (g1 + g2 + g3 + g4 ) / 4;
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b = (b1 + b2 + b3 + b4 ) / 4;
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c = matchcolor(r,g,b);
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putbrushpixel(x/2, y/2, c);
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end
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end
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