Been trying out your shader recently and I really do like it. Got a question about one of the features tho. I’m not exactly sure what internal resolution and downsampling settings do. Like what does putting 1.0 in the X downsample setting. Or what does the values between 0.00 and 6.00 for internal resolution do. Sorry if I’m being dumb on this but I dunno where to ask about this.
2 Likes
Hey there!
The thing with x-dowsampling is that it applies a vertical smoothing filter before the main shader pass, where 1.0 means range of the filter in pixels.
You can use the ‘internal resolution’ feature if you want normal, low-res scanlines even if the internal rendering resolution of the core is increased or the core outputs something high-res. Works great everywhere where the core allows you to increase the rendering resolution, like with PSX, N64, Saturn…emulators or when pixel are doubled vertically like with the amiga core…
4 Likes
Gotcha about the internal resolution. Not sure I fully get the downsampling explanation tho. What does the max value of 3.0 do then? For example, if I have a game rendered at 2x or 4x resolution, what values would I have to put it to blur it like native resolution (I understand it wouldn’t actually look the same but just as an example)
1 Like
Max value of 3.0 means that pixels for the ‘box’ filter will be sampled with offset of 3.0 pixels. Regarding which value you should use is a bit tricky, since main pass filterings varry from version to version and you should definitelly use them as your main filtering/smoothing option. So more is more blur and it also depends from the original resolution and the ‘quality’ of graphics there.
If unsure you can use the ‘HD’ version, currently available in the bundle in this thread and gradually increase the first parameter ‘Internal resolution’ until the effect looks nice enough. Need to mention that you can also adjust the main filtering parameters at the same time for more precise tweaking.
1 Like
New Release Version (2022-06-30-r1):
Notable changes:
- Mask Bloom added. It should work better with most masks compared with normal bloom. My observations were that ordinary bloom works best with slotmask reinforcements. This new additional implementation has some other nice properties, like colors aren’t clipped, since it’s sort-off multiplicative and not additive. Works best with strong mask strengths. Old presets work the same and normal bloom implementation is unchanged though.
- Halation is slightly altered for a bit stepper falloff on dark transitions.
- Edit: bug in hd version fixed
- Edit: mask clipping prevention now works with mask bloom
- Edit2: mask bloom mask 7&8 fixes
- Edit2: mask bloom fixes and tweaks
- Edit3: small tweak
Download link:
https://mega.nz/file/ssQiBA7R#sQHwkVEHci5qR-bXE1ej8Sk4lHFB3h9Aq3WGbH2OG4w
14 Likes
The mask bloom colors got brighter now with that update. Nice.
2 Likes
Really Nice update. With HDR I get no clipping with Mask 12 on the snes video test @ mask bloom 75 Almost as bright as using -50 mask but more accurate. Nice work!
3 Likes
Thanks for the feedback. Mask bloom really got a portion brighter, because it’s good it’s ready to use without too much brightness adjustments. Saturation was ‘too much’ before also. Nevertheless, did a small update to the 2022-06-30-r1 version, just to mention it.
1 Like
Looking nice:
2 Likes
I’m surprised the update didn’t break anything. Here, let me post this awesome preset I’ve been selfishly holding on to before I configure the new features.
shaders = "18"
shader0 = "../shaders/shaders_slang/crt/shaders/guest/advanced/stock.slang"
filter_linear0 = "false"
wrap_mode0 = "clamp_to_border"
mipmap_input0 = "false"
alias0 = ""
float_framebuffer0 = "false"
srgb_framebuffer0 = "false"
scale_type_x0 = "source"
scale_x0 = "1.000000"
scale_type_y0 = "source"
scale_y0 = "1.000000"
shader1 = "../shaders/shaders_slang/crt/shaders/guest/advanced/stock.slang"
filter_linear1 = "false"
wrap_mode1 = "clamp_to_border"
mipmap_input1 = "false"
alias1 = "StockPass"
float_framebuffer1 = "false"
srgb_framebuffer1 = "false"
scale_type_x1 = "source"
scale_x1 = "1.000000"
scale_type_y1 = "source"
scale_y1 = "1.000000"
shader2 = "../shaders/shaders_slang/crt/shaders/guest/advanced/afterglow0.slang"
filter_linear2 = "true"
wrap_mode2 = "clamp_to_border"
mipmap_input2 = "false"
alias2 = "AfterglowPass"
float_framebuffer2 = "false"
srgb_framebuffer2 = "false"
scale_type_x2 = "source"
scale_x2 = "1.000000"
scale_type_y2 = "source"
scale_y2 = "1.000000"
shader3 = "../shaders/shaders_slang/crt/shaders/guest/advanced/pre-shaders-afterglow.slang"
filter_linear3 = "true"
wrap_mode3 = "clamp_to_border"
mipmap_input3 = "false"
alias3 = "PrePass0"
float_framebuffer3 = "false"
srgb_framebuffer3 = "false"
scale_type_x3 = "source"
scale_x3 = "1.000000"
scale_type_y3 = "source"
scale_y3 = "1.000000"
shader4 = "../shaders/shaders_slang/crt/shaders/guest/advanced/ntsc/ntsc-pass1.slang"
filter_linear4 = "false"
wrap_mode4 = "clamp_to_border"
mipmap_input4 = "false"
alias4 = "NPass1"
float_framebuffer4 = "true"
srgb_framebuffer4 = "false"
scale_type_x4 = "source"
scale_x4 = "4.000000"
scale_type_y4 = "source"
scale_y4 = "1.000000"
shader5 = "../shaders/shaders_slang/crt/shaders/guest/advanced/ntsc/ntsc-pass2.slang"
filter_linear5 = "true"
wrap_mode5 = "clamp_to_border"
mipmap_input5 = "false"
alias5 = ""
float_framebuffer5 = "true"
srgb_framebuffer5 = "false"
scale_type_x5 = "source"
scale_x5 = "0.500000"
scale_type_y5 = "source"
scale_y5 = "1.000000"
shader6 = "../shaders/shaders_slang/crt/shaders/guest/advanced/ntsc/ntsc-pass3.slang"
filter_linear6 = "true"
wrap_mode6 = "clamp_to_border"
mipmap_input6 = "false"
alias6 = ""
float_framebuffer6 = "false"
srgb_framebuffer6 = "false"
scale_type_x6 = "source"
scale_x6 = "1.000000"
scale_type_y6 = "source"
scale_y6 = "1.000000"
shader7 = "../shaders/shaders_slang/crt/shaders/guest/advanced/custom-fast-sharpen.slang"
filter_linear7 = "true"
wrap_mode7 = "clamp_to_border"
mipmap_input7 = "false"
alias7 = "NtscPass"
float_framebuffer7 = "false"
srgb_framebuffer7 = "false"
scale_type_x7 = "source"
scale_x7 = "1.000000"
scale_type_y7 = "source"
scale_y7 = "1.000000"
shader8 = "../shaders/shaders_slang/crt/shaders/guest/advanced/stock.slang"
filter_linear8 = "true"
wrap_mode8 = "clamp_to_border"
mipmap_input8 = "true"
alias8 = "PrePass"
float_framebuffer8 = "false"
srgb_framebuffer8 = "false"
scale_type_x8 = "source"
scale_x8 = "1.000000"
scale_type_y8 = "source"
scale_y8 = "1.000000"
shader9 = "../shaders/shaders_slang/crt/shaders/guest/advanced/avg-lum-ntsc.slang"
filter_linear9 = "true"
wrap_mode9 = "clamp_to_border"
mipmap_input9 = "true"
alias9 = "AvgLumPass"
float_framebuffer9 = "false"
srgb_framebuffer9 = "false"
scale_type_x9 = "source"
scale_x9 = "1.000000"
scale_type_y9 = "source"
scale_y9 = "1.000000"
shader10 = "../shaders/shaders_slang/crt/shaders/guest/advanced/linearize-ntsc.slang"
filter_linear10 = "true"
wrap_mode10 = "clamp_to_border"
mipmap_input10 = "false"
alias10 = "LinearizePass"
float_framebuffer10 = "true"
srgb_framebuffer10 = "false"
scale_type_x10 = "source"
scale_x10 = "1.000000"
scale_type_y10 = "source"
scale_y10 = "1.000000"
shader11 = "../shaders/shaders_slang/crt/shaders/guest/advanced/crt-guest-advanced-ntsc-pass1.slang"
filter_linear11 = "true"
wrap_mode11 = "clamp_to_border"
mipmap_input11 = "false"
alias11 = "Pass1"
float_framebuffer11 = "true"
srgb_framebuffer11 = "false"
scale_type_x11 = "viewport"
scale_x11 = "1.000000"
scale_type_y11 = "source"
scale_y11 = "1.000000"
shader12 = "../shaders/shaders_slang/crt/shaders/guest/advanced/gaussian_horizontal.slang"
filter_linear12 = "true"
wrap_mode12 = "clamp_to_border"
mipmap_input12 = "false"
alias12 = ""
float_framebuffer12 = "true"
srgb_framebuffer12 = "false"
scale_type_x12 = "absolute"
scale_x12 = "640"
scale_type_y12 = "source"
scale_y12 = "1.000000"
shader13 = "../shaders/shaders_slang/crt/shaders/guest/advanced/gaussian_vertical.slang"
filter_linear13 = "true"
wrap_mode13 = "clamp_to_border"
mipmap_input13 = "false"
alias13 = "GlowPass"
float_framebuffer13 = "true"
srgb_framebuffer13 = "false"
scale_type_x13 = "absolute"
scale_x13 = "640"
scale_type_y13 = "absolute"
scale_y13 = "480"
shader14 = "../shaders/shaders_slang/crt/shaders/guest/advanced/bloom_horizontal.slang"
filter_linear14 = "true"
wrap_mode14 = "clamp_to_border"
mipmap_input14 = "false"
alias14 = ""
float_framebuffer14 = "true"
srgb_framebuffer14 = "false"
scale_type_x14 = "absolute"
scale_x14 = "640"
scale_type_y14 = "absolute"
scale_y14 = "480"
shader15 = "../shaders/shaders_slang/crt/shaders/guest/advanced/bloom_vertical.slang"
filter_linear15 = "true"
wrap_mode15 = "clamp_to_border"
mipmap_input15 = "false"
alias15 = "BloomPass"
float_framebuffer15 = "true"
srgb_framebuffer15 = "false"
scale_type_x15 = "absolute"
scale_x15 = "640"
scale_type_y15 = "absolute"
scale_y15 = "480"
shader16 = "../shaders/shaders_slang/crt/shaders/guest/advanced/crt-guest-advanced-ntsc-pass2.slang"
filter_linear16 = "true"
wrap_mode16 = "clamp_to_border"
mipmap_input16 = "false"
alias16 = ""
float_framebuffer16 = "true"
srgb_framebuffer16 = "false"
scale_type_x16 = "viewport"
scale_x16 = "1.000000"
scale_type_y16 = "viewport"
scale_y16 = "1.000000"
shader17 = "../shaders/shaders_slang/crt/shaders/guest/advanced/deconvergence-ntsc.slang"
filter_linear17 = "true"
wrap_mode17 = "clamp_to_border"
mipmap_input17 = "false"
alias17 = ""
float_framebuffer17 = "false"
srgb_framebuffer17 = "false"
scale_type_x17 = "viewport"
scale_x17 = "1.000000"
scale_type_y17 = "viewport"
scale_y17 = "1.000000"
PR = "0.460000"
PG = "0.460000"
PB = "0.460000"
AS = "0.090000"
sat = "1.000000"
quality = "0.000000"
cust_artifacting = "0.100000"
ntsc_sharp = "-4.000000"
interm = "0.000000"
spike = "0.000000"
SIZEH = "50.000000"
SIGMA_H = "1.800000"
SIZEV = "50.000000"
SIGMA_V = "1.800000"
SIZEHB = "50.000000"
SIGMA_HB = "0.300000"
SIZEVB = "50.000000"
SIGMA_VB = "0.250000"
glow = "0.060000"
bloom = "0.200000"
halation = "0.125000"
scanline1 = "16.000000"
scanline2 = "25.000000"
beam_min = "0.950000"
beam_max = "0.775000"
beam_size = "0.300000"
scans = "0.400000"
scan_falloff = "0.250000"
shadowMask = "12.000000"
maskstr = "0.850000"
mcut = "1.150000"
post_br = "1.300000"
textures = "SamplerLUT1;SamplerLUT2;SamplerLUT3;SamplerLUT4"
SamplerLUT1 = "../shaders/shaders_slang/crt/shaders/guest/advanced/lut/trinitron-lut.png"
SamplerLUT1_linear = "true"
SamplerLUT1_wrap_mode = "clamp_to_border"
SamplerLUT1_mipmap = "false"
SamplerLUT2 = "../shaders/shaders_slang/crt/shaders/guest/advanced/lut/inv-trinitron-lut.png"
SamplerLUT2_linear = "true"
SamplerLUT2_wrap_mode = "clamp_to_border"
SamplerLUT2_mipmap = "false"
SamplerLUT3 = "../shaders/shaders_slang/crt/shaders/guest/advanced/lut/nec-lut.png"
SamplerLUT3_linear = "true"
SamplerLUT3_wrap_mode = "clamp_to_border"
SamplerLUT3_mipmap = "false"
SamplerLUT4 = "../shaders/shaders_slang/crt/shaders/guest/advanced/lut/ntsc-lut.png"
SamplerLUT4_linear = "true"
SamplerLUT4_wrap_mode = "clamp_to_border"
SamplerLUT4_mipmap = "false"
2 Likes
Some more VGA DOS porn with the HD preset:
Parameters (for crt-guest-advanced-hd, made for 1440p, integer scaling is NOT needed):
pre_bb = "1.020000"
GAMMA_INPUT = "1.750000"
interm = "0.000000"
S_SHARP = "1.500000"
HSHARP = "2.000000"
mask_bloom = "0.300000"
bloom_dist = "0.500000"
halation = "0.025000"
gamma_c = "0.960000"
shadowMask = "6.000000"
maskstr = "0.500000"
mcut = "0.800000"
mshift = "1.000000"
mask_gamma = "2.900000"
mclip = "0.350000"
deconrg = "0.250000"
deconrb = "-0.250000"
deconrry = "-0.250000"
deconrgy = "-0.500000"
deconrby = "0.250000"
decons = "2.000001"
addnoised = "0.200000"
noiseresd = "1.000000"
noisetype = "1.000000"
post_br = "1.050000"
3 Likes
Yes, Mask Bloom is really nice for contrast without color clipping.
I have assembled a cool ntsc version preset for low resolution games with mask 9.0.
Screenie:
Parameters:
CS = "1.000000"
ntsc_sharp = "10.000000"
mask_bloom = "0.750000"
halation = "0.100000"
gamma_c = "1.200000"
brightboost1 = "1.000000"
gsl = "-1.000000"
shadowMask = "9.000000"
maskstr = "1.000000"
slotmask = "1.000000"
slotmask1 = "1.000000"
slotwidth = "3.000000"
double_slot = "2.000000"
deconrr = "0.750000"
deconrb = "-0.750000"
deconrry = "0.750000"
deconrby = "-0.750000"
decons = "1.500000"
13 Likes
That looks really nice!
2 Likes
Oh wow and it’s Slot Mask, definitely checking this one out.
2 Likes
Very good quality! Now it’s possible to use slot mask!
3 Likes
So I took some inspiration from your post and put my own little twist to it:
shaders = "18"
shader0 = "shaders_slang/crt/shaders/guest/advanced/stock.slang"
filter_linear0 = "false"
wrap_mode0 = "clamp_to_border"
mipmap_input0 = "false"
alias0 = ""
float_framebuffer0 = "false"
srgb_framebuffer0 = "false"
scale_type_x0 = "source"
scale_x0 = "1.000000"
scale_type_y0 = "source"
scale_y0 = "1.000000"
shader1 = "shaders_slang/crt/shaders/guest/advanced/stock.slang"
filter_linear1 = "false"
wrap_mode1 = "clamp_to_border"
mipmap_input1 = "false"
alias1 = "StockPass"
float_framebuffer1 = "false"
srgb_framebuffer1 = "false"
scale_type_x1 = "source"
scale_x1 = "1.000000"
scale_type_y1 = "source"
scale_y1 = "1.000000"
shader2 = "shaders_slang/crt/shaders/guest/advanced/afterglow0.slang"
filter_linear2 = "true"
wrap_mode2 = "clamp_to_border"
mipmap_input2 = "false"
alias2 = "AfterglowPass"
float_framebuffer2 = "false"
srgb_framebuffer2 = "false"
scale_type_x2 = "source"
scale_x2 = "1.000000"
scale_type_y2 = "source"
scale_y2 = "1.000000"
shader3 = "shaders_slang/crt/shaders/guest/advanced/grade/pre-shaders-afterglow-grade.slang"
filter_linear3 = "true"
wrap_mode3 = "clamp_to_border"
mipmap_input3 = "false"
alias3 = "PrePass0"
float_framebuffer3 = "false"
srgb_framebuffer3 = "false"
scale_type_x3 = "source"
scale_x3 = "1.000000"
scale_type_y3 = "source"
scale_y3 = "1.000000"
shader4 = "shaders_slang/crt/shaders/guest/advanced/ntsc/ntsc-pass1.slang"
filter_linear4 = "false"
wrap_mode4 = "clamp_to_border"
mipmap_input4 = "false"
alias4 = "NPass1"
float_framebuffer4 = "true"
srgb_framebuffer4 = "false"
scale_type_x4 = "source"
scale_x4 = "4.000000"
scale_type_y4 = "source"
scale_y4 = "1.000000"
shader5 = "shaders_slang/crt/shaders/guest/advanced/ntsc/ntsc-pass2.slang"
filter_linear5 = "true"
wrap_mode5 = "clamp_to_border"
mipmap_input5 = "false"
alias5 = ""
float_framebuffer5 = "true"
srgb_framebuffer5 = "false"
scale_type_x5 = "source"
scale_x5 = "0.500000"
scale_type_y5 = "source"
scale_y5 = "1.000000"
shader6 = "shaders_slang/crt/shaders/guest/advanced/ntsc/ntsc-pass3.slang"
filter_linear6 = "true"
wrap_mode6 = "clamp_to_border"
mipmap_input6 = "false"
alias6 = ""
float_framebuffer6 = "false"
srgb_framebuffer6 = "false"
scale_type_x6 = "source"
scale_x6 = "1.000000"
scale_type_y6 = "source"
scale_y6 = "1.000000"
shader7 = "shaders_slang/crt/shaders/guest/advanced/custom-fast-sharpen.slang"
filter_linear7 = "true"
wrap_mode7 = "clamp_to_border"
mipmap_input7 = "false"
alias7 = "NtscPass"
float_framebuffer7 = "false"
srgb_framebuffer7 = "false"
scale_type_x7 = "source"
scale_x7 = "1.000000"
scale_type_y7 = "source"
scale_y7 = "1.000000"
shader8 = "shaders_slang/crt/shaders/guest/advanced/stock.slang"
filter_linear8 = "true"
wrap_mode8 = "clamp_to_border"
mipmap_input8 = "true"
alias8 = "PrePass"
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/crt/shaders/guest/advanced/avg-lum-ntsc.slang"
filter_linear9 = "true"
wrap_mode9 = "clamp_to_border"
mipmap_input9 = "true"
alias9 = "AvgLumPass"
float_framebuffer9 = "false"
srgb_framebuffer9 = "false"
scale_type_x9 = "source"
scale_x9 = "1.000000"
scale_type_y9 = "source"
scale_y9 = "1.000000"
shader10 = "shaders_slang/crt/shaders/guest/advanced/linearize-ntsc.slang"
filter_linear10 = "true"
wrap_mode10 = "clamp_to_border"
mipmap_input10 = "false"
alias10 = "LinearizePass"
float_framebuffer10 = "true"
srgb_framebuffer10 = "false"
scale_type_x10 = "source"
scale_x10 = "1.000000"
scale_type_y10 = "source"
scale_y10 = "1.000000"
shader11 = "shaders_slang/crt/shaders/guest/advanced/crt-guest-advanced-ntsc-pass1.slang"
filter_linear11 = "true"
wrap_mode11 = "clamp_to_border"
mipmap_input11 = "false"
alias11 = "Pass1"
float_framebuffer11 = "true"
srgb_framebuffer11 = "false"
scale_type_x11 = "viewport"
scale_x11 = "1.000000"
scale_type_y11 = "source"
scale_y11 = "1.000000"
shader12 = "shaders_slang/crt/shaders/guest/advanced/gaussian_horizontal.slang"
filter_linear12 = "true"
wrap_mode12 = "clamp_to_border"
mipmap_input12 = "false"
alias12 = ""
float_framebuffer12 = "true"
srgb_framebuffer12 = "false"
scale_type_x12 = "absolute"
scale_x12 = "640"
scale_type_y12 = "source"
scale_y12 = "1.000000"
shader13 = "shaders_slang/crt/shaders/guest/advanced/gaussian_vertical.slang"
filter_linear13 = "true"
wrap_mode13 = "clamp_to_border"
mipmap_input13 = "false"
alias13 = "GlowPass"
float_framebuffer13 = "true"
srgb_framebuffer13 = "false"
scale_type_x13 = "absolute"
scale_x13 = "640"
scale_type_y13 = "absolute"
scale_y13 = "480"
shader14 = "shaders_slang/crt/shaders/guest/advanced/bloom_horizontal.slang"
filter_linear14 = "true"
wrap_mode14 = "clamp_to_border"
mipmap_input14 = "false"
alias14 = ""
float_framebuffer14 = "true"
srgb_framebuffer14 = "false"
scale_type_x14 = "absolute"
scale_x14 = "640"
scale_type_y14 = "absolute"
scale_y14 = "480"
shader15 = "shaders_slang/crt/shaders/guest/advanced/bloom_vertical.slang"
filter_linear15 = "true"
wrap_mode15 = "clamp_to_border"
mipmap_input15 = "false"
alias15 = "BloomPass"
float_framebuffer15 = "true"
srgb_framebuffer15 = "false"
scale_type_x15 = "absolute"
scale_x15 = "640"
scale_type_y15 = "absolute"
scale_y15 = "480"
shader16 = "shaders_slang/crt/shaders/guest/advanced/crt-guest-advanced-ntsc-pass2.slang"
filter_linear16 = "true"
wrap_mode16 = "clamp_to_border"
mipmap_input16 = "false"
alias16 = ""
float_framebuffer16 = "true"
srgb_framebuffer16 = "false"
scale_type_x16 = "viewport"
scale_x16 = "1.000000"
scale_type_y16 = "viewport"
scale_y16 = "1.000000"
shader17 = "shaders_slang/crt/shaders/guest/advanced/deconvergence-ntsc.slang"
filter_linear17 = "true"
wrap_mode17 = "clamp_to_border"
mipmap_input17 = "false"
alias17 = ""
float_framebuffer17 = "false"
srgb_framebuffer17 = "false"
scale_type_x17 = "viewport"
scale_x17 = "1.000000"
scale_type_y17 = "viewport"
scale_y17 = "1.000000"
g_signal_type = "0.000000"
g_crtgamut = "1.000000"
g_vignette = "0.000000"
g_cntrst = "0.400000"
wp_temperature = "11504.000000"
quality = "0.000000"
ntsc_scale = "2.250000"
ntsc_sharp = "-10.000000"
ntsc_shape = "1.000000"
blendMode = "0.000000"
CSHARPEN = "2.000000"
CCONTR = "0.000000"
HSHARPNESS = "1.375000"
SIGMA_HOR = "0.850000"
S_SHARP = "2.000000"
HSHARP = "1.000000"
HARNG = "0.100000"
SIGMA_VB = "0.750000"
mask_bloom = "0.750000"
halation = "0.100000"
gamma_c = "1.360000"
brightboost1 = "1.000000"
gsl = "-1.000000"
warpX = "0.050000"
warpY = "0.070000"
csize = "0.080000"
bsize1 = "0.300000"
shadowMask = "9.000000"
maskstr = "1.000000"
slotmask = "1.000000"
slotmask1 = "1.000000"
slotwidth = "3.000000"
double_slot = "2.000000"
mclip = "0.350000"
gamma_out = "2.000000"
decons = "1.500000"
textures = "SamplerLUT1;SamplerLUT2;SamplerLUT3;SamplerLUT4"
SamplerLUT1 = "shaders_slang/crt/shaders/guest/advanced/lut/trinitron-lut.png"
SamplerLUT1_linear = "true"
SamplerLUT1_wrap_mode = "clamp_to_border"
SamplerLUT1_mipmap = "false"
SamplerLUT2 = "shaders_slang/crt/shaders/guest/advanced/lut/inv-trinitron-lut.png"
SamplerLUT2_linear = "true"
SamplerLUT2_wrap_mode = "clamp_to_border"
SamplerLUT2_mipmap = "false"
SamplerLUT3 = "shaders_slang/crt/shaders/guest/advanced/lut/nec-lut.png"
SamplerLUT3_linear = "true"
SamplerLUT3_wrap_mode = "clamp_to_border"
SamplerLUT3_mipmap = "false"
SamplerLUT4 = "shaders_slang/crt/shaders/guest/advanced/lut/ntsc-lut.png"
SamplerLUT4_linear = "true"
SamplerLUT4_wrap_mode = "clamp_to_border"
SamplerLUT4_mipmap = "false"
These might be candidate settings for my next shader pack post
6 Likes
You can also check mask 6.0 with BGR layout, new bloom seems to looks a bit friendlier:
3 Likes
Nice. Gonna check that mask out as well then decide on one of them, although I might already be leaning towards mask 9. We’ll see I guess
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Heya master @guest.r! As I was doing a little exploration about early 70s vector graphics displays, I was shocked to learn these literally “painted” lines instead of building images in a “line by line” fashion as common raster CRTs do.
Then I found this video with spinning cubes on what seems to be a good oscilloscope:
I find these brighter edges being really charming, I think these are because of electron cannon slowing down while drawing the lines before each direction change, resulting in a longer irradiation of phosphors.
According to you is that possible to get these peaks on bloom on geometry edges? Would you mind pointing me out how to get this on your shader?
2 Likes
Emulating a vector display is very different from emulating a raster one. Most shaders are designed for the latter rather than the former.
MAME’s built-in vector effects (which are very nice, btw) include this sort of effect, but they get to “cheat” a bit by having their shader backend hook into the emulation logic to know where the corners lie.
In our case, to get the bright corners, the shader would need some way to know where the corners are without those hooks. We have some good pixel detection algorithms in the various smoothing shaders, so we could potentially do something like base the brightness of a pixel on the number of non-black pixels within the search radius, but the current vector effect shaders are just bloom+motionblur and don’t have any corner brightness effect.
4 Likes