On Fri, 2003-12-05 at 15:54, Andrew Shaw wrote: > > When I look at the 'VNC Connection Info', it tells me that the line speed > > estimate is 3776 kbit/s. And I can believe it 'cos it's awfully slow.
What is "awfully slow" ?? How do you measure that ? > > The display on the server is 1024*768*256 (resolution needed for the > > program I manage). Let's just do a very simple, basic calculation: 1024x768 pixels, thats 786432 pixels per single image. with 256 - still palette - you end up with a raw rate of 786432 x 8 = 6291456 bits per single image. Hmmm. 6291 kbit/image. With a refresh rate of laughable 30 fps that'll give (better: ask) 188 Mbit/s. Why, do you think, graphic cards must be so hugely powerful; why AGP ? Okay, that was the simplistic calculation. We can apply a bit of redundancy reduction and compression. And this is what you find; down from this rate of 188 Mbit/s to your 3.776 Mbit/s. That's around 50:1. This cannot be achieved with rather simple (and even not so simple) methods. Result: loss of resolution; temporal and spatial. Uwe _______________________________________________ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
