What does the 32 mean in a 1024x768x32 setting. - Techist - Tech Forum

 Techist - Tech Forum What does the 32 mean in a 1024x768x32 setting.

 09-24-2006, 01:05 PM #1 (permalink) Super Techie   Join Date: Aug 2005 Posts: 376 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. __________________
 09-24-2006, 01:31 PM #2 (permalink) Do not Stare at my Avatar     Join Date: Aug 2005 Location: Upon Gleaning Infinity Posts: 9,577 I believe it is the Color Settings. Like 16 Bit or 32 Bit. I think -shrugs- __________________
 09-24-2006, 01:42 PM #3 (permalink) Monster Techie   Join Date: Dec 2004 Posts: 1,147 Pretty sure Ste's right. __________________
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Join Date: Jul 2006
Posts: 714

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.

Quote:
 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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 09-25-2006, 01:44 AM #5 (permalink) Techie Beyond Description     Join Date: Jun 2003 Location: Melbourne, Australia Posts: 14,559 the alpha channel is for transparency. 255 = completely transparent 0 = completely opaque __________________

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