Greetings.

This program RVIS is a speed enhancment to VIS distributed by iD on the
12th September 96. On the few levels I have tested it on it averages
taking about 60% of the time taken by the original, ie. about a 40% speedup.

This program and source code modifications may be used with no restriction.
It is supplied as a 32 bit Windows executable with source code.

The result you get should be near identical the normal VIS. You may notice
about a 0.1% difference, if you compare the final VIS array tables, due to 
floating point accuracy errors. These wont affect the map. We have RVISed
large levels without problems.

Little source code is changed at the moment, however I hope to optimise the
VIS source code further to acheive another 5-10% speedup. To complete the 
source code set to compile your own you will need "qutils.zip" from 
ftp.idsoftware.com and all good mirrors like ftp.cdrom.com. Simply drop 
in the source files from this zip.

Why call it RVIS? Well, its a little tradition where I come from. You can
rename it if you like. Using RVIS you can keep your old VIS until you are
satisfied that RVIS really does work.

Send bug reports, etc, and free virtual pizza objects to the address below.

--
Antony Suter <antony@teamfortress.com>
TeamFortress Software
