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Software Support => GroovyMAME => Topic started by: NaNo1982 on January 19, 2019, 10:03:28 am

Title: Testing RTSS Scanline Sync on groovymame 0.205
Post by: NaNo1982 on January 19, 2019, 10:03:28 am

Hello, my name is Nano, then I will show you how to use the new feature of the RTSS software, the idea is to use this alternative method of V-Sync which practically does not generate imput lag, my setup is as follows:

A-10 7850k
8gb RAM DDR3
1tb disk
windows 10 (without activation) xD
Groovymame 0.205 
TV sony trinitron 29 "
converter scart to component video
Razer atrox controller

I leave this video that uploaded to youtube, in the first run you can see the terring image that generates without V-Sync in the upper part of the trees, in the second run it disappears completely without generating any type of imput lag.

https://www.youtube.com/watch?v=bHTeuwGzwx8&t=35s (https://www.youtube.com/watch?v=bHTeuwGzwx8&t=35s)

Title: Re: Testing RTSS Scanline Sync on groovymame 0.205
Post by: Calamity on January 23, 2019, 03:28:25 am

Hi NaNo1982,

This vsync method is very interesting indeed, as a proof of concept: handling vsync externally to the rendering engine.

With regards to GM, it won't add any benefit latency-wise, and I'll probably be a little worse since it doesn't allow positioning input polling with respect to the raster, like frame delay does.

Title: Re: Testing RTSS Scanline Sync on groovymame 0.205
Post by: NaNo1982 on January 23, 2019, 07:31:17 am

Undoubtedly the best is the option of frame_delay, but it is a quite demanding option especially for PC with integrated graphics cards. It is not a definitive option, but it was worth trying, thanks for clarifying, regards!  :afro: