Overlay Extensions

[Paul Stevens]

In another thread someone asked for the capability
to "Fade to Color". The Overlay capability of CSBwin
would allow this easily. Right now the only overlay
algorithm is (I believe....I am no expert) called 'Alpha
Blending'. It takes x percent of one image and (100 - x)
percent of the other.

If anyone wants different algorithms, they are very easy
to add. I even proposed that 'User-Defined' miight be
allowed if the overlay is limited to any 16 colors and the
result is limited to 65000 colors. This would allow things
like transparent (foreground or background), non-commutative
functions, etc.