A new little shader i did (glsl)

sonkun · 16 November 2022 22:02

Been a while since I posted in this thread, @DariusG this is still my favorite lightweight glsl shader. I went and took another stab at tweaking it:

shaders = "5"
shader0 = "shaders_glsl/sharpen/shaders/fast-sharpen.glsl"
wrap_mode0 = "clamp_to_border"
mipmap_input0 = "false"
alias0 = ""
float_framebuffer0 = "false"
srgb_framebuffer0 = "false"
shader1 = "shaders_glsl/dithering/shaders/gdapt/gdapt-pass0.glsl"
filter_linear1 = "false"
wrap_mode1 = "clamp_to_border"
mipmap_input1 = "false"
alias1 = ""
float_framebuffer1 = "false"
srgb_framebuffer1 = "false"
scale_type_x1 = "source"
scale_x1 = "1.000000"
scale_type_y1 = "source"
scale_y1 = "1.000000"
shader2 = "shaders_glsl/dithering/shaders/gdapt/gdapt-pass1.glsl"
filter_linear2 = "false"
wrap_mode2 = "clamp_to_border"
mipmap_input2 = "false"
alias2 = ""
float_framebuffer2 = "false"
srgb_framebuffer2 = "false"
scale_type_x2 = "source"
scale_x2 = "1.000000"
scale_type_y2 = "source"
scale_y2 = "1.000000"
shader3 = "shaders_glsl/misc/image-adjustment.glsl"
filter_linear3 = "true"
wrap_mode3 = "clamp_to_border"
mipmap_input3 = "false"
alias3 = ""
float_framebuffer3 = "false"
srgb_framebuffer3 = "false"
shader4 = "shaders_glsl/crt/shaders/crt-consumer.glsl"
wrap_mode4 = "clamp_to_border"
mipmap_input4 = "false"
alias4 = ""
float_framebuffer4 = "false"
srgb_framebuffer4 = "false"
CONTR = "0.100000"
STEPS = "5.000000"
ia_black_level = "0.020000"
blurx = "0.450000"
blury = "0.250000"
corner = "0.020000"
smoothness = "100.000000"
scanlow = "4.000000"
scanhigh = "6.000000"
beamhigh = "1.250000"
Shadowmask = "6.000000"
slotmask = "0.500000"
slotwidth = "3.000000"
double_slot = "2.000000"
glow = "0.100000"
Size = "0.100000"
sat = "1.000000"
contrast = "1.100000"
WP = "-50.000000"
vignette = "0.000000"

Edit: Tweaked a bit more and it looks like the “Glow Size” parameter acts like a sharpening setting, after lowering that I went from this:

To this:

I posted new settings above, shader also looks smoother with Bilinear Filtering on in the video settings.

Edit 2: I went and sharpened things up a bit more so now it went from this:

To this:

New settings above. You also must have Bilinear Filtering on in the Video settings when using this shader. I use this preset specifically for Yaba Sanshiro and Mupen64plus on my Shield since those two cores are the only ones that run fast in gl driver mode only.

Edit 3: Made some new settings as of 11/16/2022

shaders = "5"
shader0 = "shaders_glsl/sharpen/shaders/adaptive-sharpen.glsl"
wrap_mode0 = "clamp_to_border"
mipmap_input0 = "false"
alias0 = ""
float_framebuffer0 = "false"
srgb_framebuffer0 = "false"
shader1 = "shaders_glsl/dithering/shaders/gdapt/gdapt-pass0.glsl"
filter_linear1 = "false"
wrap_mode1 = "clamp_to_border"
mipmap_input1 = "false"
alias1 = ""
float_framebuffer1 = "false"
srgb_framebuffer1 = "false"
scale_type_x1 = "source"
scale_x1 = "1.000000"
scale_type_y1 = "source"
scale_y1 = "1.000000"
shader2 = "shaders_glsl/dithering/shaders/gdapt/gdapt-pass1.glsl"
filter_linear2 = "false"
wrap_mode2 = "clamp_to_border"
mipmap_input2 = "false"
alias2 = ""
float_framebuffer2 = "false"
srgb_framebuffer2 = "false"
scale_type_x2 = "source"
scale_x2 = "1.000000"
scale_type_y2 = "source"
scale_y2 = "1.000000"
shader3 = "shaders_glsl/misc/image-adjustment.glsl"
filter_linear3 = "true"
wrap_mode3 = "clamp_to_border"
mipmap_input3 = "false"
alias3 = ""
float_framebuffer3 = "false"
srgb_framebuffer3 = "false"
shader4 = "shaders_glsl/crt/shaders/crt-consumer.glsl"
wrap_mode4 = "clamp_to_border"
mipmap_input4 = "false"
alias4 = ""
float_framebuffer4 = "false"
srgb_framebuffer4 = "false"
STEPS = "5.000000"
ia_monitor_gamma = "2.500000"
ia_saturation = "1.200000"
ia_luminance = "0.900000"
ia_black_level = "0.010000"
ia_B = "1.050000"
ia_SHARPEN = "1.000000"
blurx = "0.000000"
blury = "0.250000"
corner = "0.020000"
smoothness = "100.000000"
scanlow = "5.000000"
beamhigh = "0.850000"
brightboost2 = "0.800000"
Shadowmask = "6.000000"
slotmask = "0.700000"
slotwidth = "3.000000"
double_slot = "2.000000"
glow = "0.150000"
Size = "0.100000"
sat = "1.000000"
contrast = "1.200000"
WP = "-75.000000"
vignette = "0.000000"

DariusG · 7 August 2022 09:06

Yeah it looks good, especially on some old formats like 8bit consoles/computers (e.g. Zx spectrum looks really close to an old TV). I use it as default there myself. Personally I think gdv-mini is more sophisticated even if it has less code and is lighter.

sonkun · 7 August 2022 17:48

Yeah I haven’t used that one in a while, I can’t do Slot Mask the way I want on that one though so that’s a huge pass from me. Gotta have my Slot Mask

Jamirus · 11 September 2022 13:56

Giving extra likes here after trying these shaders out a bit more. Very good considering the light load, while still having some flexibility with the options. Downside here is the restriction to glsl.

HyperspaceMadness · 11 September 2022 17:41

Yeah totally, GDV-Mini really looks great and handles non integer scale quite well, all while being fast and only one pass.

I have a version of GDV Mini in slang in the Mega Bezel, I’ll try to get it committed as a regular shader in the repo soon.

@DariusG what would you say the main difference is between Gdv-Mini and crt-consumer?

DariusG · 15 September 2022 12:20

They use a different filter, crt-consumer tries to emulate an old TV connection like composite, while gdv-mini is more like an arcade monitor. Crt-consumer is heavier with more options too. Some of them, the light ones, migrated to gdv-mini too.

Some formats like NES, SNES or 8bit computers just feel at home with the crt-consumer filter artifacts.

HyperspaceMadness · 18 September 2022 21:42

I converted DariusG’s gdv-mini to slang, you can find it in shaders/shaders_slang/crt/crt-gdv-mini.slangp

Howchie · 19 November 2022 13:56

Could you do the same for CRT-consumer? Edjt: Convert it to slang that is. Glsl doesn’t work on glcore.

HyperspaceMadness · 19 November 2022 15:16

I’ll put it in my backlog, but I’m not sure when I might get to it

Howchie · 20 November 2022 00:23

No worries. The gdv mini with the blargg filter does pretty well anyway. I’m using a small Linux handheld (RG552) so it gets close enough. It’s just that because it’s on glcore the glsl shader can’t load at all.

isamu99 · 20 November 2022 04:42

Hi. Can someone tell me how to use these shaders in Duckstation? I tried applying them but Duckstation just gives an error saying “Failed to Launch” or whatever.

Duimon · 20 November 2022 12:07

A log would get to the root of the issue much faster.

sonkun · 10 December 2022 01:49

Did a new tweak to my favorite lightweight glsl shader:

https://www.mediafire.com/file/d0h5w1nbfujrmim/crt-consumer-slotmask.glslp/file

Last post I recommended Bilinear Filtering to be turned on in the video settings, this time it should be off when using this preset.

DariusG · 22 January 2023 19:46

Did a small update to slang version so it’s closer to glsl version, added vignette and the 2 masks missing, the glsl version brightboost (the brighter a color is the brighter boost it gets) and saturation.

DariusG · 3 April 2023 18:10

Added glow (borrowed from crt-consumer) and white point to gdv-mini, calibrated colors to nearly match my Trinitron, so did a new shader called gdv-mini-ultra-trinitron, added to the repository so it’s soon to be available in SLANG.

Initial

gdv-mini-ultra

Cyber · 3 April 2023 18:33

This is great but why didn’t you just jump right onto the Magic Glow bandwagon? Is it too taxing performance wise based on your goals?

DariusG · 3 April 2023 18:50

I haven’t checked performance yet but glow, in general, is taxing. I have no problem run anything on my GTX 1070 but there are other shaders already that cover that area.

DariusG · 4 April 2023 09:31

Check the difference it makes. gdv-mini 1st, bland colors, uninteresting, makes you think who would draw such desaturated colors. Also lacks contrast a lot. 2nd gdv-mini-ultra-trinitron. Vibrant and interesting. Man i love those Trinitron colors lol (colors are 99% there, they are even more saturated and vibrant in reality)

DariusG · 10 April 2023 21:29

A comparison of various filters. Just a guess crt-geom should be using lanczos (very blurry) while hyllian fast uses catrom, which is similar (a bit less artifacts) that’s why they look alike so much. Personally I would opt for Mitchell and hermite as a sharp option. Triangle is the bilinear filter.

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