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

