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MooglyGuy
Renegade MAME Dev
Reged: 09/01/05
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Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME.
08/26/14 12:07 PM


> Thanks, that looks great. I'd been meaning to check it out myself since it went up on
> Shadertoy and now I don't have to. I really love the aperture grille effect on this
> one.

Yeah. Jesus. That aperture grille effect looks fucking phenomenal. I'm just slightly disappointed that it can't use a texture to define the aperture grille pattern. It damn well puts mine to shame, that's for sure.

The only real issue with the aperture grille effect is that it's not an accurate model of how it actually worked on a real CRT. If you look at the shader code, it's very clear that he has a 1:1 correspondence between the aperture and the pixels, which is something that was rarely the case on actual CRTs. In reality, the aperture grille has a fixed physical resolution in the tube, whereas the incoming signal can be whatever resolution it wants.

What I would very much like is to eventually make the HLSL code in MAME/MESS generate the aperture grille effect at the highest resolution possible, then do a gamma-correct downsample to avoid the horrible colored stripe effect you get when you crank the aperture grille intensity up. Ideally that would give both a proper physical modelling of the aperture grille as well as avoid color beating, but that'd take more time than I'm up for putting in at the moment.







Entire thread
Subject Posted by Posted on
* Tried to get Timothy Lottes' CRT Shader working with SDLMAME. SoltanGris42 08/25/14 04:50 AM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. mjnman  04/06/17 01:53 PM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. R. Belmont  04/06/17 07:40 PM
. * Taking a poll MooglyGuy  09/25/14 12:15 AM
. * Re: Taking a poll Mr. DoAdministrator  09/25/14 10:51 AM
. * The simplest answer is no.... Traso  09/25/14 05:38 AM
. * Re: The simplest answer is no.... SoltanGris42  09/25/14 08:15 AM
. * Re: The simplest answer is no.... R. Belmont  09/25/14 02:38 PM
. * Re: The simplest answer is no.... Mamesick  09/25/14 03:12 PM
. * Re: The simplest answer is no.... Traso  09/26/14 07:27 PM
. * Re: The simplest answer is no.... Mamesick  09/27/14 08:11 AM
. * Re: The simplest answer is no.... lamprey  09/25/14 06:44 AM
. * Re: Taking a poll B2K24  09/25/14 01:53 AM
. * Re: Taking a poll Arnold101  09/25/14 01:31 AM
. * Re: Taking a poll Sune  09/25/14 01:30 AM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. bigbluefe  09/15/14 02:24 AM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. B2K24  09/15/14 03:12 AM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. R. Belmont  09/15/14 04:15 AM
. * EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME SoltanGris42  09/15/14 04:36 AM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME R. Belmont  09/15/14 04:50 PM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME lamprey  09/15/14 07:42 PM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME B2K24  09/15/14 08:09 PM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME SoltanGris42  09/15/14 08:27 PM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME B2K24  09/22/14 08:05 PM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME SoltanGris42  09/22/14 10:42 PM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME torturedutopian  09/26/14 12:43 AM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME Traso  09/16/14 12:55 AM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME Arnold101  09/22/14 07:37 PM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME Traso  09/23/14 06:56 AM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME Arnold101  09/24/14 08:07 PM
. * Re: EDITED: Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME Traso  09/25/14 06:59 AM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. Dullaron  09/15/14 05:09 AM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. B2K24  09/15/14 05:25 AM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. bigbluefe  09/15/14 03:17 PM
. * Re: Tried to get Timothy Lottes' CRT Shader working with SDLMAME. Dullaron  09/15/14 02:45 AM
. * Update on Aug 30 - Alpha works now... SoltanGris42  08/30/14 10:06 PM
. * Re: Update on Aug 30 - Alpha works now... Dullaron  08/31/14 01:53 AM
. * Re: Update on Aug 30 - Alpha works now... SoltanGris42  08/31/14 02:06 AM
. * Re: Update on Aug 30 - Alpha works now... Arnold101  09/03/14 09:04 PM
. * Re: Update on Aug 30 - Alpha works now... R. Belmont  09/03/14 10:03 PM
. * Re: Update on Aug 30 - Alpha works now... Arnold101  09/03/14 10:39 PM
. * Re: Update on Aug 30 - Alpha works now... Dullaron  09/04/14 12:05 AM
. * Re: Update on Aug 30 - Alpha works now... Arnold101  09/04/14 04:01 AM
. * Re: Update on Aug 30 - Alpha works now... Anonymous  09/04/14 08:27 AM
. * Re: Update on Aug 30 - Alpha works now... mac1202  09/04/14 08:54 PM
. * Re: Update on Aug 30 - Alpha works now... SoltanGris42  09/04/14 11:29 PM
. * Re: Update on Aug 30 - Alpha works now... Arnold101  09/05/14 03:06 AM
. * Re: Update on Aug 30 - Alpha works now... SoltanGris42  09/05/14 03:59 AM
. * Re: Update on Aug 30 - Alpha works now... (Edit.) Dullaron  09/04/14 06:51 AM
. * Re: Update on Aug 30 - Alpha works now... (Edit.) Arnold101  09/04/14 09:09 PM
. * Re: Update on Aug 30 - Alpha works now... (Edit.) Dullaron  09/05/14 03:21 AM
. * Re: Update on Aug 30 - Alpha works now... (Edit.) Arnold101  09/05/14 04:37 AM
. * Re: Update on Aug 30 - Alpha works now... (Edit.) Dullaron  09/05/14 04:59 AM
. * Re: Update on Aug 30 - Alpha works now... (Edit.) Arnold101  09/05/14 01:53 PM
. * Re: Update on Aug 30 - Alpha works now... CiroConsentino  08/31/14 02:19 AM
. * Updated again with a small bloom effect and 2 alternate shadow mask patterns SoltanGris42  08/30/14 04:06 AM
. * Re: Updated again with a small bloom effect and 2 alternate shadow mask patterns Dullaron  08/30/14 05:46 AM
. * Re: Updated again with a small bloom effect and 2 alternate shadow mask patterns SoltanGris42  08/30/14 06:17 AM
. * Re: Updated again with a small bloom effect and 2 alternate shadow mask patterns Dullaron  08/30/14 06:28 AM
. * Re: Updated again with a small bloom effect and 2 alternate shadow mask patterns SoltanGris42  08/30/14 04:21 AM
. * Updated the shader file to work with my laptop's Intel Graphics driver SoltanGris42  08/27/14 03:43 AM
. * Re: Updated the shader file to work with my laptop's Intel Graphics driver R. Belmont  08/28/14 05:21 PM
. * Re: Updated the shader file to work with my laptop's Intel Graphics driver SoltanGris42  08/29/14 03:55 AM
. * Re: Updated the shader file to work with my laptop's Intel Graphics driver R. Belmont  08/29/14 08:06 PM
. * Re: Updated the shader file to work with my laptop's Intel Graphics driver Dullaron  08/28/14 06:40 AM
. * Re: Updated the shader file to work with my laptop's Intel Graphics driver SoltanGris42  08/29/14 04:02 AM
. * Re: Updated the shader file to work with my laptop's Intel Graphics driver Dullaron  08/29/14 07:39 AM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. R. Belmont  08/26/14 03:45 AM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. bigbluefe  08/27/14 04:25 AM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. lamprey  08/27/14 11:03 PM
. * By the way. Dullaron  08/27/14 11:47 PM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. TafoidAdministrator  08/27/14 04:39 AM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. bigbluefe  08/27/14 05:16 AM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. MooglyGuy  08/26/14 12:07 PM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. lamprey  08/27/14 10:50 PM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. SoltanGris42  08/27/14 03:35 AM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. TimothyLottes  08/27/14 06:46 PM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. MooglyGuy  08/29/14 11:14 AM
. * Re: Tried to get Timothy Lottes CRT Shader working with SDLMAME. Dullaron  08/29/14 12:42 AM
. * Screenshot with the shader's default settings SoltanGris42  08/25/14 04:52 AM
. * Trying MESS on my projector SoltanGris42  08/27/14 05:32 AM
. * Re: Trying MESS on my projector Dullaron  08/27/14 10:34 AM
. * Re: Trying MESS on my projector SoltanGris42  08/27/14 10:59 AM
. * Re: Trying MESS on my projector Dullaron  08/27/14 12:32 PM
. * Re: Trying MESS on my projector B2K24  08/27/14 05:52 AM
. * Re: Screenshot with the shader's default settings Ramirez  08/25/14 07:57 PM
. * Re: Screenshot with the shader's default settings B2K24  08/25/14 05:56 AM
. * Re: Screenshot with the shader's default settings SoltanGris42  08/25/14 06:00 AM
. * Re: Screenshot with the shader's default settings Dullaron  08/25/14 05:30 AM
. * Re: Screenshot with the shader's default settings Traso  08/25/14 07:20 PM

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