Favourite shader?

[AndyHazz]

With so many options now available for shaders, does anyone have a favourite?

I like using 'crt/crt-geom.glsp' - it looks sharp but not pixelated, and the rounded corners look good to me when playing on a 16:9 screen .. feels like my old Phillips Amiga monitor.

Can't say I've tried them all though, and a lot of them seem indistinguishable from each other - are there any other good ones to recommend?

[Kasenshlogga]

With so many options now available for shaders, does anyone have a favourite?

I like using 'crt/crt-geom.glsp' - it looks sharp but not pixelated, and the rounded corners look good to me when playing on a 16:9 screen .. feels like my old Phillips Amiga monitor.

Can't say I've tried them all though, and a lot of them seem indistinguishable from each other - are there any other good ones to recommend?

I found scalefx+rAA to to look really nice. Works well for both for VGA and SVGA games.

[AndyHazz]

Yeah just tried scalefx+rAA, give a nice painterly effect to some of the artwork - that shader doesn't seem to work on android/switch though (I get 'Failed to apply some of the graphic option changes: the shader could not be changed'.

Definitely subjective but personally I prefer the scanline filters to the AA type filters

[EstelRandir]

I really like the crt-consumer overall, but I do not like the rounded corners. I wish I knew how to make it flat instead.

Sev showed me how to remove the warp! (viewtopic.php?p=98200#p98200). Try this shader without the warp on Discworld I. It is beautiful to me.

[Praetorian]

This thread lacks screenshots

Please post screenshots using your favorite or custom shaders + game combination, so we can all appreciate the results!

[EstelRandir]

Game: Discworld I
Graphics Mode: OpenGL
Render Mode: VGA
Scaler: TV, 2x
Shader: crt-consumer.glslp, modified to remove the screen warp effect

With this combination, the text in the options menu is the best I have seen for this game. Sadly, this shader causes flickering issues with Discworld 2.

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[EstelRandir]

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[Kasenshlogga]

Game: Monkey Island 2, Simon The Sorcerer, Kyrandia 2
Graphics Mode: OpenGL
Render Mode: default
Scaler: default
Filter Graphics: off
Shader: scalefx+rAA
https://imgur.com/a/imXPpCi

The last screenshot also has reshade enabled to remove the remaining dithering. For this shader, leaving the scaler option at default produces the best results in my opinion.

[AndyHazz]

Game: BaSS
Graphics Mode: OpenGL
Render Mode: default
Stretch mode: Pixel-perfect
Scaler: Normal/1x
Aspect ratio correction: on
Filter Graphics: off
Shader: crt-geom

Windows display resolution set to 1280x720px

Screenshot 2023-03-31 181534.png (1.34 MiB) Viewed 111272 times

[MusicallyInspired]

I haven't tried this latest version yet with shaders, but is there an included colour quantizing shader? My favourite pastime with shaders is quantizing a game's colours to different custom palettes like EGA, C64, CGA (and all its flavours), NES, etc or any palette I'd want to build.

[sev]

I haven't tried this latest version yet with shaders, but is there an included colour quantizing shader? My favourite pastime with shaders is quantizing a game's colours to different custom palettes like EGA, C64, CGA (and all its flavours), NES, etc or any palette I'd want to build.

Yes, and a few, though limited. Below is 'presets/c64-monitor.glslp'


Eugene

[LavaDrop]

On my 2012 MacMini, CRT-Royale fails to load but CRT-Lottes works. I have to use the fast version because the normal is too demanding on my iGPU.

Game: Indy4
Graphics Mode: OpenGL
Render Mode: default
Stretch mode: Pixel-perfect
Scaler: Normal/1x
Aspect ratio correction: on
Filter Graphics: off
Shader: crt-lottes-fast

Captura de Pantalla 2023-04-12 a la(s) 10.24.43.png (2.39 MiB) Viewed 110995 times

[lemurs]

I'm usually a big fan of interpolation shaders(pixellate, sharp-bilinear, AANN etc), pretty much the only way to get old DOS stuff to look decent imo. But I honestly can't tell if ScummVM has something similar on by default, because the games look pretty damn perfect in full-screen(ratio corrected) even without one.

Or I'm guessing the general lack of smooth scrolling and the low res makes it harder to see it?

If you do nearest neighbor on a SNES game for example it's very obvious something is wrong when the screen is moving because of all the shimmering tho. Same with a DOS prompt. Not because of the scrolling obviously, but because it's harder to scale a 640x400 image to 1080p nicely. The font looks all messed up with nearest neighbor(and bilinear is not really a good option imo because how mushy it makes everything look).

Here's two pages with some examples:

https://gamingprojects.wordpress.com/20 ... istortion/

http://filthypants.blogspot.com/2017/01 ... ixels.html

EDIT: There is actually a pretty noticeable difference in SVGA games when using pixellate or AANN vs sharp-bilinear. Is ScummVM using something like sharp-bilinear by default maybe? Because that doesn't seem to work very well with SVGA games at all for me.

[KainXVIII]

I'm usually a big fan of interpolation shaders(pixellate, sharp-bilinear, AANN etc)

Me too! I'm usually using band-limit shader for retroarch and pixellate for dosbox (others are not ported yet?), i wonder how good is AANN?

[Praetorian]

Moderation Info:
Recent posts about where the shaders files are stored and loading bugs for graphical shaders have been moved to the more relevant topic here:
viewtopic.php?p=98548#p98548