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Uneven scanlines when using HLSL
#336385 - 01/25/15 11:43 PM
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I'm having issues with scanlines when applying HLSL post processing in either windowed or full screen mode.
Is there a particular ratio or formula that is required to turn the screen from displaying:
Image
Scanline
Image
Scanline
Scanline
Image
into:
Image
Scanline
Image
Scanline
Image
I can post my MAME settings if required.
Has anyone else encountered the same issue with their setup?
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| Sune |
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Connected
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Reged: 09/21/03
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Posts: 5648
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Loc: Lagoa Santa, Brasil
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Re: Uneven scanlines when using HLSL
[Re: Dr. Spankenstein]
#336389 - 01/26/15 03:31 AM
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Try setting prescale to 2 or 3 (prescale inside the HLSL settings, not the other one).
S
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Re: Uneven scanlines when using HLSL
[Re: Sune]
#336403 - 01/26/15 08:53 PM
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I have tried both 2 and 3 for prescale and it doesn't help unfortunately.
Do you have a working configuration for a native 1920x1080 resolution?
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Re: Uneven scanlines when using HLSL
[Re: Sune]
#336435 - 01/27/15 07:17 PM
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Re: Uneven scanlines when using HLSL
[Re: lamprey]
#336440 - 01/27/15 11:18 PM
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> In general, you'll want to leave the prescale set to 0, but you can always try a
> higher value to see if it helps.
>
> The first post here as a comparison of prescale values and their affect on the image:
> http://shmups.system11.org/viewtopic.php?f=6&t=45026&start=360
I have copied and pasted settings from that page and I still get uneven scanlines. This is bbmanw:
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