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Re: real transparency (under X11)



if I recall correctly, the window manager in OSX uses double-buffering, and 10.2 uses GL to speed the transparancies. however, it's not as fast...

Nicos Gollan wrote:

On Sunday 01 September 2002 16:35, Miquel van Smoorenburg wrote:
In article <E17lVSl-0000l6-00@hyperion.heim.lan>,

Christian Schoenebeck  <christian.schoenebeck@epost.de> wrote:
I'm still waiting for the ability to use real transparency. What's
the deal with this anyway? I mean, what is the problem that there's
still only pseudo transparency?
Someone has to design how this fits in with the existing X11
protocol, probably develop an extension, then write the code,
and invent and document an API for this.

I think that's exactly what the XRender extension is supposed to do. It works fairly well, but it does apparently still work with a snapshot to create transparency. I don't know enough about the X11 protocol to say anything definitive, but I think, part of the problem is that hidden parts of the desktop are just not transmitted for a redraw which would be necessary for true transparency to work.

Another problem that's rather serious is the question "what for". IMHO, that's the real problem hampering the development of such gimmicks.






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