Posted: 6/22/2016 12:01 PM
Post subject: Profile and BSNES core for regular speedrunning
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NymkHazard
He/Him
Joined: 6/22/2016
Posts: 3
Location: France
Hello, I use BizHawk 1.11.6 for regular speedrunning (not TAS) and I wanted to know which profile is recommended for that: there are "casual gaming" and "tool-assited speedrun" profiles, but not "speedrun". Is this option really matter? Same question about the BSNES core: which one should I use? The game I run is Donkey Kong Country 2. Thanks!
Posted: 6/22/2016 12:20 PM
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Lex
Joined: 6/25/2007
Posts: 732
Location: Vancouver, British Columbia, Canada
In the "Config" -> "Speed/Skip" menu, make sure to have only "Clock Throttle" enabled. "VSync Throttle" changes the emulation rate to match your refresh rate, which is inaccurate for speed run timing. Ideally, if you're doing this, you should have freesync/g-sync or have a CRT monitor set to the exact frame rate of the system you're playing or else you will experience bad input latency and frame drops.
Posted: 6/22/2016 1:00 PM
Post subject: Re: Profile and BSNES core for regular speedrunning
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Amaraticando
It/Its
Editor, Player (159)
Joined: 1/10/2012
Posts: 673
Location: Brazil
TAS of 2015 SNES TAS of 2015
NymkHazard wrote:
Hello, I use BizHawk 1.11.6 for regular speedrunning (not TAS) and I wanted to know which profile is recommended for that: there are "casual gaming" and "tool-assited speedrun" profiles, but not "speedrun". Is this option really matter? Same question about the BSNES core: which one should I use? The game I run is Donkey Kong Country 2. Thanks!
DKC2 has a small bug on BizHawk: the music can be accelerated sometimes (I remember the bonus), but that does not affect gameplay. If this is an issue, use Higan's compatibility (or even performance) core. Edit: sample of this error, but it's PAL version. I don't know about NTSC.
Posted: 6/22/2016 9:21 PM
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NymkHazard
He/Him
Joined: 6/22/2016
Posts: 3
Location: France
I did tests today with the Toxic Tower level of DKC2 and I noticed, using lag counter, a difference of 70 frames (~1s) between performance and compatibility cores. It's not negligible. I knew that compatibility core has better console lag emulation, but didn't think so much. I just hope that these lags are only due to console lag emulation...
Posted: 6/22/2016 9:39 PM
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creaothceann
He/Him
Editor
Joined: 4/7/2005
Posts: 1874
Location: Germany
Performance core is inaccurate compared to the real SNES, although accurate enough to emulate most games for personal enjoyment. For TASing and speedrunning use the compatibility core.
Posted: 6/23/2016 7:08 AM
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NymkHazard
He/Him
Joined: 6/22/2016
Posts: 3
Location: France
For TASing and speedrunning use the compatibility core
Yeah, that's what I'll do ;) Thanks for the help
Posted: 6/24/2016 2:40 PM
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zeromus
Editor, Emulator Coder
Joined: 8/7/2008
Posts: 1156
Based on the way the music behaves, you must understand the DKC2 provokes some dysfunctional timing behaviour out of bsnes. If youre going to TAS it, check your work a lot to make sure it syncs, and don't pin your hopes on it matching the console.
Posted: 7/3/2016 5:31 PM
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Sonia
She/Her
Joined: 12/6/2013
Posts: 435
Location: Brazil
By the way, if I make a movie on casual-gaming core and then replay it on the tool-assisted core, will it still sync? Does the casual gaming/tool-assisted only matter for SNES? or does it make difference on other systems too?
Posted: 7/3/2016 7:09 PM
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creaothceann
He/Him
Editor
Joined: 4/7/2005
Posts: 1874
Location: Germany
Gamer Maiden Sonia wrote:
By the way, if I make a movie on casual-gaming core and then replay it on the tool-assisted core, will it still sync?
Probably not.