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Author Topic: Testing RTSS Scanline Sync on groovymame 0.205  (Read 521 times)

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NaNo1982

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Testing RTSS Scanline Sync on groovymame 0.205
« 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.



« Last Edit: January 19, 2019, 10:09:51 am by NaNo1982 »

Calamity

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Re: Testing RTSS Scanline Sync on groovymame 0.205
« Reply #1 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.
Important note: posts reporting GM issues without a log will be IGNORED.
Steps to create a log:
 - From command line, run: groovymame.exe -v romname >romname.txt
 - Attach resulting romname.txt file to your post, instead or pasting it.

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NaNo1982

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Re: Testing RTSS Scanline Sync on groovymame 0.205
« Reply #2 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: