Article View: comp.sys.amiga.tech
Article #877Re: The Future of HAM
From: Joe Smith
Date: Sun, 13 Aug 1989 09:15
Date: Sun, 13 Aug 1989 09:15
18 lines
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1532 bytes
In article <19144@usc.edu> addison@pollux.usc.edu (Richard Addison) writes:
>While we're at it, use 7 planes for HAM so that we have 5 bits per color
>component plus one bit for overlay for a total of 16 bits per color register.
>
<And, since it would be nice to have a real alpha channel, how about another
<HAM mode with 7 planes, and 4 bits per color component with the following
<encoding for the top 3 bits to determine to use of the lower 4 bits:
[diagram deleted]
<Note that this, too, uses 16 bits per color register (4 red, 4 green, 4 blue,
<and 4 alpha). Of course, these 4 alpha bits could be available in other
<video modes.
What's an alpha channel? Tell us more.
--
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arc1-ca.pugleaf.net!utzoo!attcan!uunet!tut.cis.ohio-state.edu!brutus.cs.uiuc.edu!apple!bridge2!3comvax!tymix!tardis!jmsReferences:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!tut.cis.ohio-state.edu!brutus.cs.uiuc.edu!apple!bridge2!3comvax!tymix!tardis!jms From: jms@tardis.Tymnet.COM (Joe Smith) Newsgroups: comp.sys.amiga.tech Subject: Re: The Future of HAM Summary: What's the alpha channel? Keywords: Overlay bit, alpha channel Message-ID: <507@tardis.Tymnet.COM> Date: 13 Aug 89 09:15:51 GMT References: <1579@psueea.UUCP> <19144@usc.edu> Reply-To: jms@tardis.Tymnet.COM (Joe Smith) Organization: McDonnell Douglas Field Service Co, San Jose CA Lines: 18