Quote - I already answered that.

Quote - Two of these look not quite identical (individual pixel differences) although the luminance is the same overall - the reason is that IDL is semi-random and produces tiny differences from one render to the next, even with all settings identical.

That it means that every rendering that I make will be different and never can be repeated ? I am speaking about perceptible differences, because your example B doesn't look the same as example C. B has some color and C looks more black and white.

Stupidity also evolves!