From: "Russ Cox" <rsc@swtch.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@9fans.net>
Subject: Re: [9fans] alpha channel
Date: Sat, 27 Dec 2008 15:10:04 -0800 [thread overview]
Message-ID: <dd6fe68a0812271510o5da36b71qfcee9b53c0b64c92@mail.gmail.com> (raw)
In-Reply-To: <dac0a5820812241228q9a8c72eif690e874e5744179@mail.gmail.com>
> this is regarding alpha channel.
> i am able to change the alpha value for an image by setting new alpha value
> for every pixel.
> but i was thinking we also could set the alpha value for all of the pixels
> in a window/screen just but setting the value somewhere, say using ctl. is
> this not possible in plan9 or inferno? i am wondering how i got that
the graphics operators support alpha blending
but the window system still assumes, at a deep level,
that windows are opaque rectangles.
russ
next prev parent reply other threads:[~2008-12-27 23:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-24 20:28 Tharaneedharan Vilwanathan
2008-12-27 23:10 ` Russ Cox [this message]
2008-12-28 11:56 ` Tharaneedharan Vilwanathan
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