On Monday, 22 June 2015 at 08:45:38 UTC, Andrea Fontana wrote:
On Monday, 22 June 2015 at 08:08:42 UTC, Rikki Cattermole wrote:
I said "on color or IImage". Anyway transparency is a property
(mask) of an image ("material") rather than of the color
itself. A color has no transparency, there's no transparency on
gamut. It doesn't make sense for a color: transparency is used
only when you add an image over another in order to sum the
*colors* of two pixels. They used to pack alpha informations
with other pixel infos (color) just for simplicity and to have
a convenient way to store info inside a file, I guess.
I think alpha being part of the color make perfect sense in many
contexts, seems kinda silly to try and separate them...