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Author Topic: cps3 emulator arcade_osd on 15khz  (Read 663 times)

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trick72

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cps3 emulator arcade_osd on 15khz
« on: October 26, 2015, 04:20:08 am »
Hi,

I tried to run the cps3emulator (nebula) on a 15khz arcade monitor with crt_emudriver.

I created a modeline for the native resolution 384x224 @ 60hz. I was able to run the games at that resolution with the emulator now, but the scrolling is very jerky. So I don't think the refresh rate is like it should be.

Is it possible to run this emulator with smooth scrolling? If so, any idea what modeline I should use?
Thanks

Calamity

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Re: cps3 emulator arcade_osd on 15khz
« Reply #1 on: October 26, 2015, 06:53:58 am »
Haven't used Nebula. Anyway jerky scrolling does not mean wrong refresh rate but emulator not synchronizing to refresh rate. In other words, you can have silky smooth scrolling over a totally odd refresh. The actual reason to create exact refresh rates is to avoid modifying the emulation speed. In short, you need to enable "v-sync", "vertical synchronization", "synchronize to screen refresh", or a similarly named option in your emulator.
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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