🚀 go-pugleaf

In article <1992Dec23.125412.6083@macc.wisc.edu>
anderson@macc.wisc.edu (Jess Anderson) writes:
 
> <stuff about alpha value setting deleted>
>
>My model of that (don't know if it's right) is that you can
>write 0% of any color you like (white and black being the
>easiest ones to get from the monochrome picker).  Since the
>on-screen appearance is the same in either case (within
>Icon, I mean), you don't know what you're doing unless you
>make a careful, conscious choice.  Then, presumably, if the
>alpha information is ignored, the underlying color
>information (setgray in PostScript, for example) remains.
 
No, no, no.  I am always very careful about always selecting 0R 0G 0B 0A
when I want something transparent.  I know this because I always have to
think about it; in the Persistence of Vision raytracer (which I use a lot),
one has to use 1R 1G 1B 1A to get something transparent.  So every time
I have this situation I must remember which program I am using.  Icon
still insists on changing alpha to white or black, depending.
 
Also, irritatingly enough, after I create an image with alpha in Icon
(and save with alpha, thank you) and try to import it into another picture,
Icon refuses to recognize the alpha values that I saved.  Rrrrrr.
 
Regards and Merry Winter Solstice,
 
David K. Drum
uc512052@mizzou1.missouri.edu
"I will only use a raytracer to which I can obtain the source code!"