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Old July 21st 05, 08:53 PM
Phil Weldon
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'Tobias K' wrote, in part:
| can anyone tell me how a 32 Bit Colormode works.

_____

Thirty-two bit color, true color is
8 bits for Red
8 bits for Green
8 bits for Blue.

Brightness (luminance is the correct term for a video signal) is the sum of
Red, Blue, and Green. Various levels of gray are equal values for Red,
Green, and Blue, from 0,0,0 for black to 255, 255, 255 for pure white.

This requires only 24 bits. The other 8 bits are either unused or serve
another purpose. The reason for 32 bits is that data is handled 32 bits at
a time, or some other power of two. Even if 8 bits are wasted, handling the
data 32 bits rather than 24 bits at a time is faster.

Phil Weldon


"Tobias K" wrote in message
...
Hello,

can anyone tell me how a 32 Bit Colormode works.

Is it:
8 Bit R, 8 Bit G, 8 Bit B, 8 Bit Brightness ?

Or how ?

Greetings

Tobias