Feature request: Black frame insertion for 120Hz Lightboost

This is for people involved in the developement of Snes9x, or SNES emulators in general.
BUG REPORTS BELONG IN TECH SUPPORT/BUG TRACKING!
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cpharlok
Snes9x White Belt
Posts: 1
Joined: Mon Mar 25, 2013 11:50 pm

Feature request: Black frame insertion for 120Hz Lightboost

Post by cpharlok »

Hi ! Some of you may already know that new lightboost enabled monitors (120Hz refresh rate with backlight strobing) can do perfect animation without ghosting/blur. They look exaclty as a CRT with this hack:

http://www.blurbusters.com/zero-motion-blur/lightboost/

A problem arises when you have a 50/60Hz source (like SNES). It is a common problem for all upscaling in fps, even consoles make this artifact when playing 30fps games on a 60Hz TV set. If you try to simply double the frame to match monitor refresh, image gets a bit "doubled", in fact appearing like ghosting. It is simple to solve though, just adding a black frame just before the drawn frame solves it without noticeable flickering (at least for 120Hz refresh). I have done it in MAME successfully, it is simpky astonishing to see perfect scrolls with no blurriness, like a CRT. Also, WinUAE have been modified by Toni Wilen to check this and works like a charm.

Can this black frame insertion trick be added to Snes9x or someone can build me a windows port with the modification in order to test it?

You can check it working in mame in this post:

http://www.blurbusters.com/software-bas ... ame-insert...

Check comments (i am cpharlok if you need a precompiled mame for test it)

Thanks for your help!
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