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16 lines
369 B
JavaScript
16 lines
369 B
JavaScript
// Aseprite
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// Copyright (C) 2015 by David Capello
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var spr = activeSprite
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for (y=0; y<spr.height; ++y) {
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for (x=0; x<spr.width; ++x) {
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var c = spr.getPixel(x, y)
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var v = (rgbaR(c)+rgbaG(c)+rgbaB(c))/3
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spr.putPixel(x, y, rgba(rgbaR(c),
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rgbaG(c),
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rgbaB(c),
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255-v))
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}
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}
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