Koko-aio shader discussions and updates

[kokoko3k]

Unlikely, as I faced the very same issue, despite the final window size.

It has to be that it is inheriting image zoom values from different defaults, but I cannot find anywhere where you defined them, they seem to be missing (?)

-edit-

Found:

Your Final gameboy preset references my:

#reference "../../../shaders_slang/bezel/koko-aio/Presets_Handhelds-ng/GameboyPocket.slangp"

Which in turn references my GameboyMono which defines wrong zoom and offest values for your background image.

@Duimon: Similar issues for nintendo ds:

Uncorrectly scaling the bezels

[kokoko3k]

I’m currently exploring the possibility of modulating the horizontal warped glow to be “scanline friendly”.

This means that the horizontal glow would be modulated by the scanline.

No WarpedGlow x:

Old WarpedGlow X:

New WarpedGlow X:

New WarpedGlow X, less strength:

The difference is subtle, but it is more evident in high contrasted areas (like the sword or the woods in front of the sky).

I feel it helps in rounding the image and keeps sharp edges; thus allowing to emulate scanlines dynamics better without the need of blurring.

What do you think?

[oldpainless]

Nice.

Oddly enough, was just looking at a pic and it remined me that CRT shaders are so close to the real thing in many respects.

[RickDangerous]

I agree that it looks more natural with the new WrapedGlow X. If the performance is not affected, this is clearly better.

[kokoko3k]

It will be affected, but I need my reference Haswell to know how much; hopefully under 2%

I made a newwarpedglowx test branch

Download latest here

By defaults it uses a lower quality version that looks very similar to the hq version even at big zoom levels.

You can switch to HQ by using #define HQ_WARPEDGLOW_X in config-user-optional.txt

I still have to test performance hits tho.

-edit-

…for whatever reason the performance hit is minimal (less than 1% on Haswell iGp) and the HQ version seems to be even faster (!?)

[RickDangerous]

Indeed I think it looks better.

[kokoko3k]

Oky, just merged into main with usual latest headaches to manage ro/tated arcade games.

When set to a negative number (new Warpedglow x), it will be also disabled when Fake integer scanlines or Interlacing is requested.

While the former is conceptually correct, the latter is just a performance tradeoff.

[Starman99x]

Could this be implemented in koko-aio?

[kokoko3k]

Before we start, correct me if I’m wrong, but I don’t think Gameboy color had the diorama effect as shown in the link you posted, just the DMG had that.

Speaking of DMG, koko-aio already allows you to set a background and a foreground color, thus not needing transparencies.

Doesn’t GameBoy Color cores have colorization to change the white background?

[Starman99x]

@kokoko3k

Before we start, correct me if I’m wrong, but I don’t think Gameboy color had the diorama effect as shown in the link you posted

I’m not sure, but how can I achieve this effect in koko-aio with general handheld presets? I like how it looks.

@kokoko3k

Doesn’t GameBoy Color cores have colorization to change the white background?

The closest thing in SameBoy are the low contrast options, here’s a comparison:

"Reduced Contrast"

"Harsh Reality"

pixel_transparency-authentic_gbc_fast.slangp

I like the pixel transparency look more.

[kokoko3k]

The Diorama/shadow strength parameter already takes care of the shadow.

As per the transparency, you can activate the monochrome screen colorization and set a yellowish hue (or whatever):

…then playing with saturation etc

I made this presets in a matter of seconds, so don’t expect it to be accurate, but feel free to play with it:

test.slangp

#reference "/path/to/Presets_Handhelds-ng/GameboyColor.slangp"
COLOR_MONO_COLORIZE = "0.300000"
COLOR_MONO_HUE1 = "0.180000"
COLOR_MONO_HUE2 = "0.180000"
SATURATION = "1.430000"
DO_PIXELGRID = "0.000000"
DOT_M_G_TRESH = "-1.100000"
DOT_M_G_BRT = "0.540000"
DOT_M_SHADOW_STR = "1.000000"

It is not a difficult nor gpu-heavy thing to do better than that, but it would require 3 more parameters do define the background color, that’s what i’m fearing.

This is with core colorization set to off and brightness put down:

[Starman99x]

I’m facing a mirror glitch with phosphor persistence on with PDP-1 Spacewar (MAME):

Here's the full preset:

shaders = "17"
shader0 = "shaders_slang/bezel/koko-aio/shaders-ng/colortools_and_ntsc_pass.slang"
alias0 = "colortools_and_ntsc_pass"
wrap_mode0 = "mirrored_repeat"
mipmap_input0 = "false"
filter_linear0 = "true"
float_framebuffer0 = "true"
srgb_framebuffer0 = "false"
scale_type_x0 = "source"
scale_x0 = "1.000000"
scale_type_y0 = "source"
scale_y0 = "1.000000"
shader1 = "shaders_slang/bezel/koko-aio/shaders-ng/fxaa.slang"
alias1 = "upscale_pass"
wrap_mode1 = "mirrored_repeat"
mipmap_input1 = "true"
filter_linear1 = "true"
float_framebuffer1 = "true"
srgb_framebuffer1 = "false"
scale_type_x1 = "source"
scale_x1 = "2.000000"
scale_type_y1 = "source"
scale_y1 = "2.000000"
shader2 = "shaders_slang/bezel/koko-aio/shaders-ng/shift_and_bleed.slang"
alias2 = "shift_and_bleed_pass"
wrap_mode2 = "mirrored_repeat"
mipmap_input2 = "false"
filter_linear2 = "true"
float_framebuffer2 = "true"
srgb_framebuffer2 = "false"
scale_type_x2 = "source"
scale_x2 = "1.000000"
scale_type_y2 = "source"
scale_y2 = "1.000000"
shader3 = "shaders_slang/bezel/koko-aio/shaders-ng/in_glow_x.slang"
alias3 = "in_glow_pass_x"
wrap_mode3 = "clamp_to_edge"
mipmap_input3 = "false"
filter_linear3 = "true"
float_framebuffer3 = "true"
srgb_framebuffer3 = "false"
scale_type_x3 = "source"
scale_x3 = "1.000000"
scale_type_y3 = "source"
scale_y3 = "1.000000"
shader4 = "shaders_slang/bezel/koko-aio/shaders-ng/in_glow_y.slang"
alias4 = "in_glow_pass"
wrap_mode4 = "clamp_to_border"
mipmap_input4 = "false"
filter_linear4 = "true"
float_framebuffer4 = "true"
srgb_framebuffer4 = "false"
scale_type_x4 = "source"
scale_x4 = "1.000000"
scale_type_y4 = "source"
scale_y4 = "1.000000"
shader5 = "shaders_slang/bezel/koko-aio/shaders-ng/halo_pre_gamma.slang"
alias5 = "halo_pre_gamma_pass"
wrap_mode5 = "clamp_to_border"
mipmap_input5 = "false"
filter_linear5 = "true"
float_framebuffer5 = "true"
srgb_framebuffer5 = "false"
scale_type_x5 = "source"
scale_x5 = "1.000000"
scale_type_y5 = "source"
scale_y5 = "1.000000"
shader6 = "shaders_slang/bezel/koko-aio/shaders-ng/halo.slang"
alias6 = "halo_pass"
wrap_mode6 = "clamp_to_border"
mipmap_input6 = "false"
filter_linear6 = "true"
float_framebuffer6 = "true"
srgb_framebuffer6 = "false"
scale_type_x6 = "source"
scale_x6 = "1.000000"
scale_type_y6 = "source"
scale_y6 = "1.000000"
shader7 = "shaders_slang/bezel/koko-aio/shaders-ng/avglum_pass.slang"
alias7 = "avglum_pass"
wrap_mode7 = "clamp_to_border"
mipmap_input7 = "false"
filter_linear7 = "true"
float_framebuffer7 = "true"
srgb_framebuffer7 = "false"
scale_type_x7 = "source"
scale_x7 = "0.500000"
scale_type_y7 = "source"
scale_y7 = "0.500000"
shader8 = "shaders_slang/bezel/koko-aio/shaders-ng/reflection_blur_pre.slang"
alias8 = "reflected_blurred_pass_pre"
wrap_mode8 = "clamp_to_border"
mipmap_input8 = "false"
filter_linear8 = "true"
float_framebuffer8 = "false"
srgb_framebuffer8 = "false"
scale_type_x8 = "source"
scale_x8 = "1.000000"
scale_type_y8 = "source"
scale_y8 = "1.000000"
shader9 = "shaders_slang/bezel/koko-aio/shaders-ng/reflection_blur.slang"
alias9 = "reflected_blurred_pass"
wrap_mode9 = "mirrored_repeat"
mipmap_input9 = "false"
filter_linear9 = "true"
float_framebuffer9 = "true"
srgb_framebuffer9 = "false"
scale_type_x9 = "source"
scale_x9 = "1.000000"
scale_type_y9 = "source"
scale_y9 = "1.000000"
shader10 = "shaders_slang/bezel/koko-aio/shaders-ng/bloom_pass_1.slang"
alias10 = "bloom_pass_1"
wrap_mode10 = "mirrored_repeat"
mipmap_input10 = "false"
filter_linear10 = "true"
float_framebuffer10 = "false"
srgb_framebuffer10 = "false"
scale_type_x10 = "source"
scale_x10 = "1.000000"
scale_type_y10 = "source"
scale_y10 = "1.000000"
shader11 = "shaders_slang/bezel/koko-aio/shaders-ng/bloom_pass_2.slang"
alias11 = "bloom_pass_2"
wrap_mode11 = "clamp_to_edge"
mipmap_input11 = "false"
filter_linear11 = "true"
float_framebuffer11 = "false"
srgb_framebuffer11 = "false"
scale_type_x11 = "source"
scale_x11 = "0.500000"
scale_type_y11 = "source"
scale_y11 = "0.500000"
shader12 = "shaders_slang/bezel/koko-aio/shaders-ng/bloom_pass_3.slang"
alias12 = "bloom_pass_3"
wrap_mode12 = "clamp_to_edge"
mipmap_input12 = "false"
filter_linear12 = "true"
float_framebuffer12 = "false"
srgb_framebuffer12 = "false"
scale_type_x12 = "source"
scale_x12 = "1.000000"
scale_type_y12 = "source"
scale_y12 = "1.000000"
shader13 = "shaders_slang/bezel/koko-aio/shaders-ng/bloom_pass_4.slang"
alias13 = "bloom_pass_final"
wrap_mode13 = "mirrored_repeat"
mipmap_input13 = "false"
filter_linear13 = "true"
float_framebuffer13 = "true"
srgb_framebuffer13 = "false"
scale_type_x13 = "source"
scale_x13 = "1.000000"
scale_type_y13 = "source"
scale_y13 = "1.000000"
shader14 = "shaders_slang/bezel/koko-aio/shaders-ng/ambi_temporal_pass.slang"
alias14 = "ambi_temporal_pass"
wrap_mode14 = "clamp_to_border"
mipmap_input14 = "false"
filter_linear14 = "true"
float_framebuffer14 = "true"
srgb_framebuffer14 = "false"
scale_type_x14 = "absolute"
scale_x14 = "96"
scale_type_y14 = "absolute"
scale_y14 = "64"
shader15 = "shaders_slang/bezel/koko-aio/shaders-ng/helper_pass.slang"
alias15 = "helper_pass"
wrap_mode15 = "mirrored_repeat"
mipmap_input15 = "false"
filter_linear15 = "true"
float_framebuffer15 = "true"
srgb_framebuffer15 = "false"
scale_type_x15 = "absolute"
scale_x15 = "128"
scale_type_y15 = "absolute"
scale_y15 = "128"
shader16 = "shaders_slang/bezel/koko-aio/shaders-ng/final_pass.slang"
alias16 = "final_pass"
wrap_mode16 = "clamp_to_edge"
mipmap_input16 = "false"
filter_linear16 = "true"
float_framebuffer16 = "false"
srgb_framebuffer16 = "false"
scale_type_x16 = "viewport"
scale_x16 = "1.000000"
scale_type_y16 = "viewport"
scale_y16 = "1.000000"
IN_GLOW_GAMMA = "2.200000"
DO_CCORRECTION = "1.000000"
IN_GLOW_POWER = "1.500000"
TEMPERATURE = "7200.000000"
COLOR_MONO_COLORIZE = "0.600000"
COLOR_MONO_HUE_BIAS = "-1.000001"
SAT_BLEED_PAL = "1.000000"
SAT_BLEED_STRENGTH = "0.500000"
SAT_BLEED_SIZE = "3.000000"
DO_PPERSISTENCE = "1.000000"
OFFSET_STRENGTH = "0.250000"
DECON_GX = "1.600000"
RESSWITCH_SYNC_SPEED = "1.000000"
IN_GLOW_BIAS = "0.000000"
IN_GLOW_SPREAD = "1.500000"
IN_GLOW_SPREAD_SHARPNESS = "1.750000"
IN_GLOW_W = "-1.050000"
IN_GLOW_H = "-1.050000"
IN_GLOW_WARPSHARP_X = "0.400000"
MIN_LINES_INTERLACED = "0.000000"
PIXELGRID_INTR_DISABLE_Y = "2.000000"
PIXELGRID_INTR_FLICK_MODE = "0.000000"
DO_PIXELGRID_H = "0.000000"
PIXELGRID_COREY_FAKE_SCAN = "0.000000"
DO_PIXELGRID_W = "0.000000"
PIXELGRID_H_PRST = "2.000000"
PIXELGRID_Y_MASK = "0.000000"
PIXELGRID_Y_MASK_SHIFT = "0.120000"
PIXELGRID_Y_MASK_STEEP = "8.000000"
PIXELGRID_Y_MASK_ON_WHITE = "0.000000"
HALO_POWER = "0.990000"
HALO_SHARPNESS = "6.000000"
HALO_GAMMA = "1.400000"
HALO_VS_SCAN = "1.000000"
DO_BLOOM = "1.000000"
BLOOM_MIX = "0.800000"
DO_CURVATURE = "1.000000"
GEOM_WARP_X = "0.570000"
GEOM_WARP_Y = "0.810000"
GEOM_CORNER_SIZE = "0.013000"
GEOM_CORNER_SMOOTH = "200.000000"
BEZEL_R = "-0.310000"
BEZEL_G = "-0.310000"
BEZEL_B = "-0.310000"
BEZEL_REFL_STRENGTH = "0.330000"
BEZEL_RFL_BLR_SHD = "-0.350000"
BEZEL_ROUGHNESS = "2.000000"
BEZEL_RFL_CONTRAST = "1.500000"
BEZEL_DIFFUSION_STR = "0.170000"
BEZEL_SPCL_STRENGTH = "0.350000"
DO_GLOBAL_SHZO = "1.000000"
GLOBAL_OFFX = "-0.224999"
GLOBAL_ZOOM = "0.728500"
DO_BACKDROP = "0.200000"
BACKDROP_JUST_TUBE = "1.000000"
DO_BG_IMAGE = "1.000000"
BG_IMAGE_WRAP_MODE = "1.000000"
DO_AMBILIGHT = "0.000000"
V_SIZE = "1.080000"
V_SHAPE = "0.800000"
DO_SPOT = "1.000000"
S_POWER = "0.067000"
DO_DYNZOOM = "0.000000"
DO_GAME_GEOM_OVERRIDE = "1.000000"
GAME_GEOM_VSHIFT = "2.379998"
textures = "monitor_body_curved;monitor_body_straight;bg_under;bg_over;backdrop;sideshade"
monitor_body_curved = "Duimon-koko-aio/Graphics/_bezel/bezel_curved.png"
monitor_body_curved_mipmap = "true"
monitor_body_curved_linear = "true"
monitor_body_curved_wrap_mode = "clamp_to_edge"
monitor_body_straight = "Duimon-koko-aio/Graphics/_bezel/bezel_straight.png"
monitor_body_straight_mipmap = "true"
monitor_body_straight_linear = "true"
monitor_body_straight_wrap_mode = "clamp_to_edge"
bg_under = "Duimon-koko-aio/Graphics/PDP-1/PDP-1_Alt.jpg"
bg_under_mipmap = "false"
bg_under_linear = "true"
bg_under_wrap_mode = "mirrored_repeat"
bg_over = "shaders_slang/bezel/koko-aio/textures/background_over.png"
bg_over_mipmap = "false"
bg_over_linear = "true"
bg_over_wrap_mode = "mirrored_repeat"
backdrop = "params/config-koko/Screen_tweaks/Tube_Style/Duimon/phosphor.png"
backdrop_mipmap = "false"
backdrop_linear = "true"
backdrop_wrap_mode = "mirrored_repeat"
sideshade = "shaders_slang/bezel/koko-aio/textures/side_shade-helper.png"
sideshade_mipmap = "false"
sideshade_linear = "true"
sideshade_wrap_mode = "mirrored_repeat"

I’m refrencing "Presets-4.1\FXAA-bloom.slangp". I like to tweak that one for custom vector presets and similar stuff.

[kokoko3k]

I can’t understand…

oh, maybe I got it, do you mean the repeating image?

[Starman99x]

Yeah at the bottom. It looks similar to screen burn.

[kokoko3k]

What game?

Why are you using override screen geometry with Y shifting?

This is what is triggering the bug, but I’m not sure you need that anyway.

–edit–

Bug is fixed in main on development repo; the content shifting in your preset is still present, and it is eating screen content, if it is what you want, it should be all set now (i used default assets and a wrong game, probably?).

[Starman99x]

@kokoko3k

What game?

It’s not an arcade game, but rather an interesting piece of history that we can emulate with mame. PDP-1 Spacewar is Probably the first “video” game in history.

@kokoko3k

Bug is fixed in main on development repo; the content shifting in your preset is still present, and it is eating screen content, if it is what you want

Thanks. I do need the geometry override to hide an unwanted white area of the screen. It’s too bright and distracting otherwise.

[Starman99x]

Any suggestions on how to achieve this clean dots look?

[kokoko3k]

No way.

Vector hardware paints isolated points much brighter then lines, but cores do not, so the shader should guess by its own and I tried hard, but it is a very heavy operation.

How can I make vector games look good in retroarch?

I worked some time ago on two vector presets you can see here …however, like explained some posts before the one linked, isolated points used to be brighter (like shots in asteroids), so with a bigger halo, but actually the core renders everything black or white and for a shader figuring if something is a point or a line would be quite heavy, expecially on high resolutions like the ones vector games are rendered to.

Koko-aio shader discussions and updates

What kind of flicker? Shader only supports interlaced one, but on vector games it cannot be it, or maybe is similar? –edit– ah, understood, not bothering with that, since it seems mame 2003 plus already does. [Screenshot_20241113_072727] …however, looking at real hardware, i fear core is not good, see the shot here: [Screenshot_20241113_075858] It produces a big halo, while the “ship” does not; explosions are gorgeous too. [Screenshot_20241113_080005] It’s kinda like they are “brighter t…

[sonkun]

@kokoko3k

I have to say this look right here is so damn sexy the way you got the bloom dialed in. I’m a sucker for stylish looks, I could get lost playing a bunch of games looking like this. I wonder if I could replicate this look myself.

[kokoko3k]

Hey thanks!

Truth to be said tho, it was specifically tuned for that content.

Often i find myself to think that we should do specific shaders for specific content, not fot the sake of accuracy emulation, bit just to enhance them, case by case.