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The following example is taken from the SourceTest.Fuse example found at Example_Fuses
local img = Image(imgattrs)
local random = math.random -- faster in a local
local p = Pixel({A=1}) for y=0,Height-1 do
if self.Status ~= "OK" then break end
for x=0,Width-1 do
p.R = random()
p.G = random()
p.B = random() img:SetPixel(x,y, p)
end
OutImage:Set(req, img)