2012 02:06
To: sam-users@nvg.ntnu.no
Subject: Re: Which colors for a grayscale?
En/Je/On 2012-12-20 05:00, Stefan Drissen escribió / skribis / wrote :
I wrote the greyscale ditherer - see
[1]http://www.worldofsam.org/node/40
Stefan, do you keep the Z80 source? If so, would you share
En/Je/On 2012-12-20 05:00, Stefan Drissen escribió / skribis / wrote :
I wrote the greyscale ditherer - see
[1]http://www.worldofsam.org/node/40
Stefan, do you keep the Z80 source? If so, would you share it? I'd like
to adapt your routine to work on any region of the current screen. I'd
En/Je/On 2012-12-20 05:00, Stefan Drissen escribió / skribis / wrote :
I wrote the greyscale ditherer - see
[1]http://www.worldofsam.org/node/40 - it only uses the real greys
and dithers the in between a.
Thank you Stefan.
My first try sprite is 54x28, only few pixels got cyan using
Hi all,
In order to automate and simplify as much as possible the process of
importing images into the SAM and avoid the palette conversion problems,
I'm tinkering with the Netpbm raster formats
(http://en.wikipedia.org/wiki/Netpbm_format). BMP and others could be
used too, but Netpbm files have
Hi Marcos,
The SAM palette is make up using 2-bit RGB plus intensity, which bitwise
is: xGRBigrb. For pure greys you'd use:
= 00 = 0
0111 = 07 = 7
1000 = 08 = 8
= 0f = 15
0111 = 70 = 112
01110111 = 77 = 119
0000 = 78 = 120
0111 = 7f = 127
The SAM demo
En/Je/On 2012-12-19 21:54, Simon Owen escribió / skribis / wrote :
bitwise is: xGRBigrb. For pure greys you'd use:
= 00 = 0
0111 = 07 = 7
1000 = 08 = 8
= 0f = 15
0111 = 70 = 112
01110111 = 77 = 119
0000 = 78 = 120
0111 = 7f = 127
I already knew
Although the cyanish in between colours looked good on an old CRT television, I
thought they looked horrible on a monitor. That's why I wrote the greyscale
ditherer - see http://www.worldofsam.org/node/40 - it only uses the real greys
and dithers the in between a.
Op 19 dec. 2012 om 22:54
