On Fri, Feb 28, 2003 at 01:04:59AM +0000, Ian Molton wrote: | | The human eye cant do better than 9bpp, and thats in its most sensitive | colour, green.
The human eye can see boundaries between colors that differ in intensity by less than 1 part in 512, particularly at low intensities. This results in banding, bad enough in still images but really objectionable in animations because the bands move. If I remember correctly, this effect doesn't vanish until you get to about 12 bits per color channel (for fixed-point formats). Then there are the arguments for deeper color channels based on the need for higher-precision intermediate results -- for transparency, antialiasing, multipass rendering, etc. These are compelling. Allen ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
