2 Mar
2016
2 Mar
'16
9:32 p.m.
On 3/2/16 10:45 AM, ethan at 757.org wrote:
The graphics were only 256 colors, but
the engine provided for varying
lighting levels per-sector so having more colors would allow for
better-looking rendering.
- Josh
> I've
tried it on a number of machines (from the 386 era to a modern PC)
> and they all just end up showing garbage when this mode is enabled. I
> cannot for the life of me find a reference to this mode existing
> anywhere, but I assume it must have worked on *some* SVGA chipset of
> the
> era since ID programmed in support for it. I'm guessing it was cut
> because nothing else supported it (and because 160x200 must have looked
> awful, even with lots of colors...)
VGA has analog RGB signals.
VGA card uses DAC chip, 8 bit would give the 256 color and 16 bit
would give the 65536, and 24 bit would give the 16.7 million color
depth. RAM was a big issue as well on these cards, since more memory
needed to store color info.
The one thing I would wonder is -- even if some video card had the
ability to sacrifice resolution for color depth (reconfigurable
RAMDAC?) -- were the textures and tiles in Doom supplied in true
color/16 bit color or were they 256 colors?
--
Ethan O'Toole