Wilbert Berendsen wrote:
You know you can have LilyPond transparent (alpha) PNGs directly by using
-dpixmap-format=pngalpha on the commandline, like:
lilypond -dresolution=300 -dpixmap-format=pngalpha --png file.ly
or by including these lines in your template:
#(ly:set-option 'pixmap-format "pngalpha")
#(ly:set-option 'resolution 300)
Does not work for me here in neither way. Do I have to specify a special
version of GS or something?
But anyway, even if it worked, I think to remember that the default GS
pgnalpha backend only does "binary" transparency, not "gradual"
transparency - which means that on antialiased boundarys of objects
which softly turn into white you'll see white shadows, right?
The correct way - at least IMHO - is to leave the foreground color as
black for all "drawn" pixels and only adjust the alpha channel to what
was the gray value before.
Cheers,
Alexander
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