I tried accurate vbeam emulation in a lot of games at some point and my conclusion was that either it slows the game down a lot or more often does seemingly nothing while the emulator reports an improved speed. The bit about audio timings is interesting though.
(05-14-2012, 05:50 AM)n-fani Wrote: [ -> ]I tried accurate vbeam emulation in a lot of games at some point and my conclusion was that:
Quote:1. it slows the game down a lot
examples:
all Gamecube games
Quote:2. does seemingly nothing
examples: a good number of Wii games
Quote:3. provides a nice speedup
examples: DCKR, SC, SMG, XB, TLS, M:OM
Quote:4. it doubles the target FPS from 30 to 60 fps (or 60 to 120 fps) for some games
Okay, so most screen recorders suck on Linux. Getting video is fine, audio is another thing. Thankfully, good old ffmpeg can record both with no fuss.
I made a video basically demonstrating what I encountered the other day. Dunno if this helps more than looking at the code itself, but it's probably better anyway if you can hear and see what I was talking about. Played Metroid Prime again and fought the Parasite Queen (pretty audio intensive area for the Space Frigate), once with accurate vbeam off, and then again with accurate vbeam on.
You can see in the video how the FPS drops in both, but only in the latter does the game speed maintain 90%+. Note, the recording overhead is probably what makes the game speed dip to the lower 90s on the second part, as it was pretty solid before. Just as well, the first part has noticeable skipping, even with the boss battle background music, while the second one sounds much better. I'm not saying that accurate vbeam will solve LLE stuttering, just calling out some unexpected behavior.
http://www.youtube.com/watch?v=tw8HLV1Ws9A
I'm no expert on these hacks/settings but Accurate VBeam emulation has made Metal Gear Solid The Twin Snakes much more playable than before. The speedup it has provided is so ridiculously fast that I am able to use LLE audio (with audio throttle enabled) with hardly any issues. Those cut-scene crashes stopped happening since I used LLE. BTW I am using official 3.0 release. The newer ones don't run full speed with LLE audio in some scenes and slightly slow (around 98%) in codec calls. It might seem like such a minor difference but when using LLE the speed must be perfect for it to avoid stuttering.
So the developers are focusing more on accuaracy than performance from what I've been reading. It's awesome because a lot of games will be playable BUT sadly at the moment unless you have a very good CPU you won't be able to play games like you do on the console (Just tested Mario Galaxy and the music goes off with HLE and FPS goes down a lot when i activate LLE making the game not fun to play)
I guess ill just stick to the console for now (I want to play it on my PC though
but this game without music is not the same!). Although i won't use it yet i want to say thanks to the developers for the effort to create this emulator.
My Computer Specs:
i3 CPU 540 3.07Ghz
ATI Radeon HD 5570
8GB RAM
Sorry for the English. Not my first language.
Yep, your CPU is not strong enough.
Anyway, did you try the latest Dolphin revision? You should get some FPS more in SMG.
Quote:BUT sadly at the moment unless you have a very good CPU you won't be able to play games like you do on the console
So just get a good cpu. A 3570k isn't really that expensive.
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