Just something I use to brighten and darken sampled pigments
without changing their colour:

Gamma(Colour, Correction)

In the past I've tried lots of variations on things like
"White - (1 - Colour) / WhitenAmount" with limited success.

The Gamma() macro has the nice feature that if the input
colour has all components somewhere between 0 and 1 then
so will the output colour.

Since I'm using it all over the place others
might find it useful too.

P.S.
I've added f, t and ft variants for the sake of completeness
but I don't use those and I'm not sure how useful they might
be.

-- 
Bill Hails
http://billhails.net/

Post a reply to this message

Attachments:
Download 'us-ascii' (2 KB)