POV-Ray : Newsgroups : povray.off-topic : Back to the future : Re: Back to the future Server Time
11 Oct 2024 05:19:05 EDT (-0400)
  Re: Back to the future  
From: Invisible
Date: 28 Jul 2008 05:19:04
Message: <488d8f08$1@news.povray.org>
Chambers wrote:

> I know people claim you can't tell the difference with more bits, but 
> honestly I still see banding in "truecolor" (ie 8 bits per channel) images.

My laptop is 24-bit graphics modes. However, the physical display 
hardware only supports 16-bit colour, and does dithering in hardware to 
produce the rest. The end result is, obviously, horrid.

[But then my laptop's LCD is horrid anyway. No matter where you put your 
head, only 50% of the display is visible at any time - the other 50% 
shows up in negative. Talk about narrow viewing angle...!]

I can well understand somebody looking at a "24-bit image" on this 
16-bit display and concluding that 24-bits is insufficient. But 
honestly, on every *real* 24-bit display I've seen, there is no evidence 
of banding at all. Hell, my sister has a gigantic 42-inch LCD TV in her 
front room, and I'm watching digital TV and playing COD4 on a PS3, all 
in 24-bit colour, and it looks damned *perfect*.

(...and then there are those people who claim to be able to tell the 
difference between 44.1 kHz and 48 kHz digital audio - despite the 
proven scientific impossibility of this feat.)

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*


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