At 09:53 AM 8/7/97 -0500, you wrote:
>> If you ever plan on building a Color Card convertor you're going to need to
>> recreate these circuits since Boxing Bugs intentionally overdrives the X/Y
>> signals, since it was known no damage would result, and software clipping is
>> slow, and a pain.
>
>So how does the Color Card interpret the 12-bit color data it get from the
>CPU ??? This has been bugging me (no pun intended) for some time.
For one the colors are inverted where "all ones" mean black, and 'all zeros'
mean full intensity.
It's explained it in the most recent release of the Cinematronics
Programmer's Guide on Bill's Cinematronics Home Page
(www.concentric.net/~Zonn -- I let him use my ISP)
BTW: Paul, you have to do something about those poor WotW Martians on your
home page, they're looking a bit anemic! Maybe they need a little more
copper in there diet? Everyone knows martians are green! ;^) ;^)
"Bu" is cool!
-Zonn
Here's an excerpt from the "Manual" -- such as it is.
The colors are latched the same as Solar Quest and Sundance, and all the
different monitors are mapped as follows:
----------------------------------
16 levels of intensities (Sundance):
xxxx xxxx CCCC
Where:
x - Don't care.
CCCC - Intensity level.
0000 = Lowest intensity.
0001 = 2nd lowest intensity.
1111 = Highest intensity.
-----
64 levels of intensities (Solar Quest):
xxxx CCCC CCxx
Where:
x - Don't care.
CCCC CC - Intensity level.
1111 11 = Lowest intensity.
1111 10 = 2nd lowest intensity.
0000 00 = Highest intensity.
-----
4096 colors (Boxing Bugs, War of the Worlds):
BBBB GGGG RRRR
Where:
BBBB - Blue intensity level.
1111 = No blue.
1110 = Dimmest blue.
0000 = Maximum blue level.
GGGG - Green intensity level.
1111 = No green.
1110 = Dimmest green.
0000 = Maximum green level.
RRRR - Red intensity level.
1111 = No red.
1110 = Dimmest red.
0000 = Maximum red level.
1111 1111 1111 = Black.
1110 1111 1111 = Lowest intensity blue.
1111 1110 1111 = Lowest intensity green.
1111 1111 1110 = Lowest intensity red.
0000 0000 0000 = Brightest white.
Received on Thu Aug 7 10:22:27 1997
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