Newsgroups: comp.sys.amiga.graphics Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cunixf.cc.columbia.edu!cunixb.cc.columbia.edu!es1 From: es1@cunixb.cc.columbia.edu (Ethan Solomita) Subject: Re: So, does *anyone* make 1024x768 x256 for the A3000? Message-ID: <1991Apr25.192819.20350@cunixf.cc.columbia.edu> Sender: usenet@cunixf.cc.columbia.edu (The Network News) Nntp-Posting-Host: cunixb.cc.columbia.edu Reply-To: es1@cunixb.cc.columbia.edu (Ethan Solomita) Organization: Columbia University References: <15250@helios.TAMU.EDU> <1991Apr24.211729.19270@bronze.ucs.indiana.edu> Date: Thu, 25 Apr 1991 19:28:19 GMT In article frank@morpheus.UUCP (Frank McPherson) writes: >-- >I think you're right about that. Think about it. A quick calculation >tells you that a 640x400 pixel image with 24 bitplanes would occupy SIX >megabytes (6,144,000 bytes, to be exact) of storage. Likewise, a >1024x768 image which had 24 bitplanes would occupy 18,874,368 bytes. Not >something you'd be able to display on your average Amiga 3000. > That's 24 BIT planes, not 24 BYTE planes. 640x400 with 24 bit planes is 750K, or 640 * 400 * 3. 24 bits is 3 bytes. >"24 bit graphics" does not imply 24 bit planes. I'm sure someone will >correct me if I'm wrong, but I think that with normal 24 bit graphics >boards, they allow you to choose 256 colours (8 bitplanes) from a >palatte of 16 million (approx. 2^24). > 24 bit graphics means 24 bit graphics. What you're referring to is 8 bit graphics, also the SVGA standard. > >-- Frank McPherson INTERNET : emcphers@fox.cs.vt.edu -- >-- AmigaUUCP : uunet!vtserf!morpheus!frank -- -- Ethan "Brain? What is Brain?"