> >What browser are you using?
>
> Netscape Communicator 4.76, Macintosh PPC. It uses QuickTime to view
the
> graphic. Incidentally, it also took a while to download - what are you
> running the server off?
Apache/1.3.12 (Unix) PHP/3.0.15 mod_perl/1.24 on FreeBSD.
>
> >Aside from the additions of more encodings (which I realize is a big
> >deal), what other optimizations does ChromiVNC have over stock Xvnc?
>
> Actually, ChromiVNC does not yet support any encodings beyond the
standard
> RFB 3.3 set (Raw, RRE, CoRRE and Hextile). It doesn't even support
> CopyRect yet, and may not do for some time. The main optimisations so
far
> are:
>
> - True frame-differencing (makes sure an area is different from what the
> client last saw before attempting to send it).
>
> - Determines the most space-efficient encoding to send an area with, by
> encoding with each in turn and comparing the resulting data sizes. This
is
> not always the "most advanced" encoding available. It also exposes bugs
in
> clients which haven't been tested so rigourously with the "less
advanced"
> encodings. :)
>
> Both of these consume some RAM and CPU, but for a machine capable of
> running MacOS X (what is it, a G3 with 128Mb RAM?) these should not be
> significant. In fact, the frame-differencing has a positive side-effect
on
> CPU consumption for several reasons, although the resulting rectangle
> matrix is somewhat suboptimal at present.
>
> Also, ChromiVNC is under proactive research and development, whereas
Xvnc's
> featureset has remained almost static for some time. I intend to
implement
> the Zlib encoding in the reasonably near future, and I am currently
working
> on features that a good proportion of the VNC community has been
requesting
> for a long time. Additional techniques to improve efficiency are also
> being devised between myself and Adrian, although implementation of
these
> ideas is lagging a little due to unavailability of time to do so.
>
> These features include: view-only passwords (which have been implemented
> for Xvnc but not in the mainstream tree), longer password support, and
> encryption (currently only available using complex third-party tools
such
> as SSH).
>
> BTW, do you handle multiple monitors? If so, how?
Hmm. I think the author, Dan McGuirk, should be able to answer this one.
I am just an end luzer running and early tester of this software on
a lonely iMac. My knowledge of the internals is minimal to say the least.
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