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MooglyGuy
Renegade MAME Dev
Reged: 09/01/05
Posts: 2261
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Re: Help perfect HLSL by fixing one pixel.™
01/04/14 07:59 PM


> The bug is always there. It's just more noticeable in multi screen games because you
> can see the gap. HLSL always shifts the whole screen slightly up and to the left.
>
> You have no idea what I'm complaining about because you have only one eyebrow.
>
> Edit: I just made a video to show you the problem.
> https://www.youtube.com/watch?v=_DiHOSMeKUs

You're completely correct, the fix was clearly half-baked and broken. I'm not quite sure why these guys are coming down on you like a hammer, but you're right in this case.

The issue my "fix" was supposed to fix was something I mistakenly thought was the issue you were reporting. On my laptop I noticed a small gap between the screens on Darius and tracked it down to the texture coordinates being generated in bloom.fx not starting on an exact pixel boundary, so the edge pixels were getting blended against the clear color (black). I didn't notice the deleterious effect on scanlines because Darius only runs at like 1.25x its native resolution when maximized due to my screen only being 1280x800, so I barely see scanlines on it. When I fired up a single-screen game just now to double-check, I can confirm that the scanlines look pretty ass-y now.

I'm on vacation for the next couple weeks so I have plenty of time for MAME and MESS right now, and I'm working on a proper fix as we speak.







Entire thread
Subject Posted by Posted on
* Help perfect HLSL by fixing one pixel.™ nirv 12/14/13 08:58 PM
. * Re: Help perfect HLSL by fixing one pixel.™ SmitdoggAdministrator  01/04/14 05:29 AM
. * Re: Help perfect HLSL by fixing one pixel.™ nirv  01/04/14 08:18 AM
. * Re: Help perfect HLSL by fixing one pixel.™ SoltanGris42  01/04/14 10:22 AM
. * Re: Help perfect HLSL by fixing one pixel.™ nirv  01/04/14 11:43 AM
. * Re: Help perfect HLSL by fixing one pixel.™ SoltanGris42  01/05/14 01:08 AM
. * Re: Help perfect HLSL by fixing one pixel.™ B2K24  01/05/14 03:34 AM
. * Re: Help perfect HLSL by fixing one pixel.™ nirv  01/05/14 04:42 AM
. * Yeah. Can you believe the 'nirv' of that guy? [nt] Tomu Breidah  01/05/14 02:35 AM
. * Re: Help perfect HLSL by fixing one pixel.™ B2K24  01/04/14 12:13 PM
. * Re: Help perfect HLSL by fixing one pixel.™ nirv  01/04/14 02:10 PM
. * Re: Help perfect HLSL by fixing one pixel.™ MooglyGuy  01/04/14 07:59 PM
. * Re: Help perfect HLSL by fixing one pixel.™ nirv  01/04/14 08:08 PM
. * Re: Help perfect HLSL by fixing one pixel.™ MooglyGuy  01/04/14 08:11 PM
. * Re: Help perfect HLSL by fixing one pixel.™ nirv  01/04/14 08:19 PM
. * Re: Help perfect HLSL by fixing one pixel.™ MooglyGuy  01/04/14 08:22 PM
. * Re: Help perfect HLSL by fixing one pixel.™ John IV  01/04/14 11:04 PM
. * Re: Help perfect HLSL by fixing one pixel.™ nirv  01/04/14 08:37 PM
. * Re: Help perfect HLSL by fixing one pixel.™ B2K24  01/04/14 07:58 PM
. * Re: Help perfect HLSL by fixing one pixel.™ nirv  01/04/14 08:13 PM
. * Re: Help perfect HLSL by fixing one pixel.™ Firehawke  01/04/14 07:39 PM
. * Re: Help perfect HLSL by fixing one pixel.™ Tomu Breidah  01/04/14 04:38 PM
. * Re: Help perfect HLSL by fixing one pixel.™ redk9258  01/04/14 03:34 PM
. * Re: Help perfect HLSL by fixing one pixel.™ Tomu Breidah  01/04/14 11:57 AM
. * Re: Help perfect HLSL by fixing one pixel.™ Dr. Spankenstein  12/15/13 12:31 PM

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