Does it require the old HRP? I only use the sfall built in HRP these days. I just shared my current settings that seems to work.
Interesting, I never payed attention to this setting.. after all these years you learn something new. I had it set to 8, is that bad?
not nessecarily bad.. it's ok for those weirdos that still play this game in 640x480. However if You play like normal folks in FullHD than 8MB of graphics cache might be too little for you, the game would scroll pretty poorly, and animations would be sluggish.. there is one exception to this rule... if you've set in ddraw.ini OverrideArtCacheSize=1 than it will be irrelevant whatever you set in fallout2.cfg in art_cache_size= as with vanilla sfall ( Yours and NovaRain's branch) overrided value is now 261MB ( this used to be 256MB, and still is for Mr.Stalin's sfall5 if i remember correctly) ).
i think it's all there is to it.
Back in the day when fallout 1 and 2 were made, graphic accelerators had no memory of their own, so games had to rely using portion of mainboard memory to use as graphical memory. this is where art_cache_size comes in. back in fallout 1 the game was designed to run with as little as 32MB of ram, with 5MB of it serving as graphics cache, that was for original resolution. Later when sfall came and resolution went up to modern standards, so had to the graphics cache. However Fallout and Fallout2 are 32 bit applications without Large Adress Aware flag set, so they could only map 2GB of virtual memory adress space. and since sfall chews from that too the art cache size has an upper limit beyond which the game begins to crash, after free virtual adress space ends. 261MB of art_cache size was found to be the sweetspot which does not crash the game with out of memory error. other errors occour if sfall build has memory leak bugs.
I don't know if CPU_usage_fix=1 works with built in HRPl.. i don't use it since built in HRP tended to fuck up localized subtitles when using divix .avi as videos. i don't know if it was fixed, as NovaRain claimed it worked for Him using english subs. However I and also One French guy experimented with why subs didn't work for upscaled avi videos for Fo:EtTu.. it turned out that with legacy Mash's HRP they work fine, but with built in HRP subs don't display when using .avi videos.
as i said i don't know if it was fixed, but my finding was mostly ignored. So i decided to stick to legacy HRP. compatibility with old HRP is actually a giant pro if deciding between vanilla sfall and sfall5, as Mr.Stalin decided to cut legacy HRP compatibility, and after a certain build only built in HRP works with sfall5. sfall5 still has video tearing bug in lower 1/3 of the screen when displaying avi videos, a thing Nova fixed some time ago in vanilla build. So sfall 5 not only lacks subs when viewing upscaled vids bit alsoo glitches the playback on 1/3 of the screen, as if the upscales i made were faulty :p