I put comments in appropriate places all below..
On Mon, 21 Jan 2002, Alex Perry wrote:
> From: mslicker <[EMAIL PROTECTED]>
> > I sure wish these NIC people would wake up and realize their
> > product would
> > be a hell of lot better geared toward business customers than as a
> > consumer device for which it couldn't possibly have much of a
> > market for.
>
> Yes. I also mentioned it to them. Maybe if enough people mention it,
> and then proceed to not buy the consumer version of the system,
> they might see the light sooner. Sigh.
Yeah, they should remove the CD-ROM and the modem, switch the keyboard for
something more standard and put the savings into slightly better graphics.
I think I'll voice my complaint about this as well. They have no idea
where their market actually is.
>
> Ideally, they'd change the flash contents to full EtherBoot and remove
> the CD drive, putting the $10 saving into a higher quality keyboard.
>
> From: mslicker <[EMAIL PROTECTED]>
> > I keep hearing that 3D over X isn't feasible, but I have no idea where
> > these people are coming from. X has a very long history of
> > being used for
> > 3D rendering. [...]
> > Why do people say this is not feasible? X isn't a bitmap
> > protocol, it's
> > more like postscript.
>
> I think it's for three reasons ...
>
> (1) For a long time, the default Linux install used Mesa.
> This runs on the server side and dumps bitmaps to the client.
> For a 768-1024 pixel display, about 2MB of data is transferred
> which is usable for static 3D presentation graphics but useless
> for interactive ... it's 2 seconds of 10bT and 1/4 sec of 100bT
> from after the rendering is done until the picture is visible.
Do Loki games tend to use Mesa or authentic OpenGL? That's what really
matters for Computer Cafes. Using a switch instead of a hub would likely
improve the performance to the point of being indistinguishable from being
run directly on the same machine--if OpenGL is used. I'm thinking that
even full-screen video might be acceptible.. These are things I'd like to
experiment with when I get the chance.
>
> (2) Most old X terminals don't support 3D, forcing this mode too.
> The XFree86v3 LTSP didn't have 3D support at all, not even software,
> unless the administrator went to the trouble of installing it.
> I did, and for most of my work it is quite acceptable. However,
> it can burn through a lot of memory so you either need a lot more
> local RAM or you have to get the NFS swapping tuned up carefully.
> Otherwise, the X server exits unexpectedly ... irritates end user.
>
> (3) Most people, these days, use 3D primarily for gaming and
> the fraction of a second additional latency is totally unacceptable.
> Running FlightGear, for example, I've got two computers that both
> give 25fps when running natively and about 8fps acting as a terminal.
>
> By the way, if you're going to add GLX support to your LTSP systems,
> be sure to make the config file selective about which terminals
> turn it on. For example, if you have a 486 PC as a terminal that
> has absolutely no accelerated graphics (i.e. not even XAA!).
> I was forever accidentally starting up FlightGear that way and it
> takes a _long_ time for the 486 to draw the one frame - that must
> be finished before X delivers the 'abort simulator' keystrokes.
>
>
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