--PALETTE: Fill ColorCube voids v1.0
--by Richard Fhager
--http://hem.fyristorg.com/dawnbringer/
-- Email: dawnbringer@hem.utfors.se
-- MSN: annassar@hotmail.com
--
-- 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/>
--
-- Create a palette by continously filling the greatest void in the RGB color-cube
--
SHADES = 16 -- Going 24bit will probably be too slow and steal too much memory, so we're 12bit (4096 colors) for now
ini = 0
exp = 255
OK,ini,exp = inputbox("Fill Palette Color voids",
"From/Keep #: 0-254", 0, 0,254,0,
"Replace to #: 1-255", 31, 1,255,0
);
function initColorCube(sha)
ary = {}
for z = 0, sha-1, 1 do
ary[z+1] = {}
for y = 0, sha-1, 1 do
ary[z+1][y+1] = {}
end
end
return ary
end
function addColor2Cube(cube,sha,r,g,b) -- Gravity model
star = 1000000
fade = 1000
cube[r+1][g+1][b+1] = star
for z = 0, sha-1, 1 do
for y = 0, sha-1, 1 do
for x = 0, sha-1, 1 do
d = fade / ( (x-b)^2 + (y-g)^2 + (z-r)^2 )
if cube[z+1][y+1][x+1] ~= nil then
cube[z+1][y+1][x+1] = cube[z+1][y+1][x+1] + d
else
cube[z+1][y+1][x+1] = d
end
end;end;end
end
function findVoid(cube,sha)
weakest = 999999999999
weak_i = {-1,-1,-1}
for z = 0, sha-1, 1 do
for y = 0, sha-1, 1 do
for x = 0, sha-1, 1 do
w = cube[z+1][y+1][x+1]
if w <= weakest then weakest = w; weak_i = {z,y,x}; end
end;end;end
return weak_i[1],weak_i[2],weak_i[3]
end
--
if OK == true then
cube = initColorCube(SHADES)
-- Fill cube with initial colors
for n = 0, ini-1, 1 do
r,g,b = getcolor(n)
div = SHADES
addColor2Cube(cube,SHADES,math.floor(r/div),math.floor(g/div),math.floor(b/div))
end
if ini == 0 then -- With no inital color, some inital data must be added to the colorcube.
addColor2Cube(cube,SHADES,0,0,0)
setcolor(0, 0,0,0)
ini = ini + 1
end
for n = ini, exp, 1 do
r,g,b = findVoid(cube,SHADES)
mult = 255 / (SHADES - 1)
setcolor(n, r*mult,g*mult,b*mult)
addColor2Cube(cube,SHADES,r,g,b)
end
end