--BRUSH Remap: Apply PenColor
--by Richard Fhager
--http://hem.fyristorg.com/dawnbringer/
-- Copyright 2010 Richard Fhager
--
-- This program is free software; you can redistribute it and/or
-- modify it under the terms of the GNU General Public License
-- as published by the Free Software Foundation; version 2
-- of the License. See <http://www.gnu.org/licenses/>
run("../libs/dawnbringer_lib.lua")
OK,tin,clz,fade,amt,brikeep,falloff,nobg,nopen,briweight = inputbox("Apply PenColor 2 Brush",
"1. Tint", 1, 0,1,-1,
"2. Colorize", 0, 0,1,-1,
"BG->FG color Fade", 0, 0,1,0,
"AMOUNT % (0-100)", 100, 0,100,0,
"Preserve Brightness", 1, 0,1,0,
"Bri/Dark FallOff", 1, 0,1,0,
"Exclude Background", 1,0,1,0,
"Exclude PenColor", 0,0,1,0,
"ColMatch Bri-Weight %", 25, 0,100,0
);
if OK == true then
function cap(v) return math.min(255,math.max(v,0)); end
w, h = getbrushsize()
fg = getforecolor()
bg = getbackcolor()
fR,fG,fB = getcolor(fg)
bR,bG,bB = getcolor(bg)
pal = db.fixPalette(db.makePalList(256))
if nobg == 1 then
pal = db.stripIndexFromPalList(pal,bg) -- Remove background color from pallist
end
if nopen == 1 then
pal = db.stripIndexFromPalList(pal,fg) -- Remove Pencolor from pallist
end
amtA = amt / 100
amtR = 1 - amtA
-- Normalize Pen Color
lev = (fR+fG+fB)/3
fR = fR - lev
fG = fG - lev
fB = fB - lev
---------------------------------------------------
-- Colorize (Colourant) (just apply colorbalance)
-- Tint (make grayscale and apply colorbalance)
--
-- I think it should be the other way around since colorize is the process of adding color to B&W film...
-- But this is the what Brilliance and others call it
--
if clz == 1 or tin == 1 then
cols = {}
for n = 0, 255, 1 do
r,g,b = getcolor(n)
a = db.getBrightness(r,g,b)
mR,mG,mB = fR,fG,fB
-- Fade between bg & fg pencolor across dark-bright
if fade == 1 then
lf = a / 255
lr = 1 - lf
mR = bR*lr + fR*lf
mG = bG*lr + fG*lf
mB = bB*lr + fB*lf
lev = (mR+mG+mB)/3
mR = mR - lev
mG = mG - lev
mB = mB - lev
end
fr,fg,fb = mR,mG,mB
if brikeep == 1 then
-- Loose Brightness preservation (ex: applying full red to dark colors)
brin = db.getBrightness(cap(r+mR),cap(g+mG),cap(b+mB))
itot = brin - a
fr = mR - itot
fg = mG - itot
fb = mB - itot
end
-- Falloff (Effect weakens at dark and bright colors)
if falloff == 1 then
fo = 1 - math.abs((a - 127.5)/127.5)^2
fr = fr * fo
fg = fg * fo
fb = fb * fo
end
if tin == 1 then
--cols[n+1] = matchcolor((a+fr)*amtA + r*amtR, (a+fg)*amtA + g*amtR, (a+fb)*amtA + b*amtR)
cols[n+1] = db.getBestPalMatchHYBRID({(a+fr)*amtA+r*amtR, (a+fg)*amtA + g*amtR, (a+fb)*amtA + b*amtR},pal,briweight / 100,true)
end
if clz == 1 then
--cols[n+1] = matchcolor((r+fr)*amtA + r*amtR, (g+fg)*amtA + g*amtR, (b+fb)*amtA + b*amtR)
cols[n+1] = db.getBestPalMatchHYBRID({(r+fr)*amtA+r*amtR, (g+fg)*amtA + g*amtR, (b+fb)*amtA + b*amtR},pal,briweight / 100,true)
end
end
if nobg == 1 then cols[getbackcolor()+1] = getbackcolor(); end
for x = 0, w - 1, 1 do
for y = 0, h - 1, 1 do
putbrushpixel(x, y, cols[getbrushpixel(x,y) + 1]);
end
end
end;
-- eof Colorize & Tint
--------------------------------------------------------
end -- OK