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Old 09-24-2006, 12:05 PM   #1 (permalink)
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Default What does the 32 mean in a 1024x768x32 setting.

When Im playing games I set the resolution at like 1280x1024x32 or 1280x1024x16 I think. I know what 1280x1024 is but what does the 32 stand for.

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Old 09-24-2006, 12:31 PM   #2 (permalink)
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I believe it is the Color Settings.
Like 16 Bit or 32 Bit.

I think -shrugs-

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Old 09-24-2006, 12:42 PM   #3 (permalink)
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Pretty sure Ste's right.
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Old 09-24-2006, 02:17 PM   #4 (permalink)
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Ste's right. The 32 means colors are encoded using 32 bits (4 bytes). This means the computer can recognize 2^32 = 4,294,967,296 different colors. At 24 bits, it's 16,777,216 colors ("16 millions colors") and at 16 bits, you get 65,536 colors. The old "256 colors" corresponds of course to 8 bits. The higher the "bit count", the smoother the colors will be.

Edit: For those interested, Wikipedia showed me wrong.

from Wikipedia
"32-bit color" is a misnomer when regarding display color depth. A common misconception is that 32-bit color produces 4,294,967,296 distinct colors. In reality, 32-bit color actually refers to 24-bit color (Truecolor) with an additional 8 bits either as empty padding space or to represent an alpha channel.

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Old 09-25-2006, 12:44 AM   #5 (permalink)
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the alpha channel is for transparency.
255 = completely transparent
0 = completely opaque
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