Please show off what crt shaders can do!

sonkun · 29 October 2020 04:19

Get on your pc and post some shots up, you’re the reason I even started using deconvergence in my shaders now lol

Syh · 29 October 2020 04:43

It’ll have to be tomorrow, as I’m not home atm.

Tomorrow or Friday I’ll get on there and take some screenshots.

sonkun · 29 October 2020 04:47

Nice. I’ll be around.

Nesguy · 29 October 2020 06:19

Played with bright boost, was able to improve the dynamic range. This might be a bit too bloomy; if so, lower bright boost bright pixels to 4.00 or so.

shaders = "9"
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alias3 = "LinearizePass"
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scale_type_y3 = "source"
scale_y3 = "1.000000"
shader4 = "shaders_slang/crt/shaders/guest/blur_horiz.slang"
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srgb_framebuffer5 = "false"
scale_type_x5 = "source"
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AG = "0.070000"
PG = "0.050000"
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sat = "0.100000"
lsmooth = "0.900000"
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GLOW_FALLOFF_V = "0.300000"
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OS = "1.000000"
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brightboost = "1.000003"
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gsl = "0.000000"
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beam_min = "2.500000"
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gamma_out = "3.499999"
spike = "1.000000"
inter = "400.000000"
interm = "1.000000"
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goyg = "0.020000"
goxb = "0.000000"
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TO = "0.000000"
PH = "2.000000"
PER = "0.750000"
ASAT = "0.200000"
temperature = "6500.000000"
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wp_red = "-0.000001"
wp_green = "-0.000001"
wp_blue = "-0.000001"
textures = "SamplerLUT1;SamplerLUT2;SamplerLUT3"
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SamplerLUT1_mipmap = "false"
SamplerLUT2 = "shaders_slang/crt/shaders/guest/lut/sony_trinitron2.png"
SamplerLUT2_linear = "true"
SamplerLUT2_wrap_mode = "clamp_to_border"
SamplerLUT2_mipmap = "false"
SamplerLUT3 = "shaders_slang/crt/shaders/guest/lut/other1.png"
SamplerLUT3_linear = "true"
SamplerLUT3_wrap_mode = "clamp_to_border"
SamplerLUT3_mipmap = "false"

lilbud · 29 October 2020 15:15

Just tried this shader and it is very garish and blown out, not sure if it’s my monitor or what, but at times the light colors are way too much.

Nesguy · 29 October 2020 19:24

I can almost guarantee that the problem is your monitor; both of the shots you just posted look absolutely fine (bloomy, though). Is your monitor calibrated?

You should use the same aspect ratio that I’m using in my shots, different scales will affect the appearance of scanlines, masks, etc.

If anything is too bright there will be clipping in color bars or grey scale, both of which look fine. Blue gets clipped a bit because of the color temp (~8000K). EDIT: Actually, with these current settings I find that the rule “increase brightness until you get clipping” no longer applies; it’s possible to increase brightness to the point where the colors wash out without getting clipping when using these settings. So instead it’s best to just check a variety of sources when adjusting bright pixel boost to ensure that nothing is getting washed out too much. Dark pixel boost should be left at 1.00, resulting in a no-op.

A setting of 4.00 or so for bright pixels is probably more reasonable; some colors will start to look washed out if you increase this too much. 4.50 is admittedly pretty bloomy, looks okay with some games I guess.

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filter_linear0 = "true"
wrap_mode0 = "clamp_to_border"
mipmap_input0 = "false"
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lilbud · 29 October 2020 19:48

I calibrated my monitor and tried the shader again. The top of the screen in F-Zero is still way too washed out and bright. To the point where the timer blends into the sky.

The screenshots look fine, but actually playing a game with the shader is too bright.

I tried to take some pictures, first is the one you just posted. Second is the one I posted, but with white point lowered to 6000

2 new photos by Lilbud

hunterk · 29 October 2020 20:04

That XMvSF shot looks a lot like my Neotec arcade monitor (excuse potato camera). Good stuff.

Nesguy · 29 October 2020 20:22

That second shot is too yellow, what color temp is your display set to? Contrast might also be set too high on the display. Is the display calibrated to sRGB?

Nothing’s getting clipped and all the colors look well-saturated in these shots, as seen on my display.

Nesguy · 29 October 2020 20:26

I’d like to see more shots of that if/when you get the time, some good close-ups would be nice!

I think I’ll call this one “Arcade19XX”

lilbud · 29 October 2020 20:27

Monitor is on ‘standard’, which is the closest the monitor settings has to srgb. I also calibrated the monitor with windows built in settings.

The second shot looks perfectly fine on my monitor. I had to bring the white point down from 6500 to 6000, as it was too blue for me.

Nesguy · 29 October 2020 20:31

Idk, all your shots look way too yellow on every screen I’ve tested and too yellow compared to everyone else’s shots, so maybe the problem is with your display? Have you used a monitor calibration device?

lilbud · 29 October 2020 20:31

I have absolutely no idea. The monitor is fine as is, even on factory settings your shader was way too bright.

The only settings my monitor has are basic brightness and contrast and separate RGB sliders (all at 100)

For reference, my monitor is a Dell E2220H

Nesguy · 29 October 2020 20:39

Have you used a monitor calibration device? There might be something going on with the display that’s throwing off the built-in profiles.

It’s just that your shots look too yellow compared to everything I’ve seen- not just my own shots but other people’s, the raw colors without shaders, and the real thing as seen on a CRT.

lilbud · 29 October 2020 20:52

I don’t have one of those. I just used the built in windows one and the lagom monitor test pages.

Ive just used the default setting until today when I calibrated it

cobhc2016 · 29 October 2020 21:49

I’m guessing it’s your display. That’s a TN panel without full sRGB coverage that likely has the gamut way off so that yellow is oversaturated compared the other secondaries which means it will look unbalanced.

If that’s the way you’re used to seeing the image then it will look fine to you but yeah it definitely looks way off to me as well.

lilbud · 29 October 2020 22:08

Ah, that’s why.

I really didn’t pay too much attention to the specifics when buying it. I bought it earlier this year because I needed a bigger monitor (my last was an 18in 768p monitor). All I really paid attention to was screen size and if it was 1080p at least.

So there really isn’t going to be a shader that is good for all monitor types.

Nesguy · 29 October 2020 23:20

Yeah TN panels have really bad image quality unfortunately. Definitely recommend upgrading to at least a decent IPS LCD if possible. OLED or maybe QLED would be even better. Plasma is good too but the last ones were manufactured in 2013

lilbud · 29 October 2020 23:26

I’ll keep that in mind for the next monitor I get. At the time this was the best I could afford (got this one for $90), and it really didn’t matter to me personally. I just needed a monitor with a not terrible resolution.

It’s fine enough for my needs. Looks pretty good and is a modern resolution, plus I can finally do decent integer scales and actually use crt shaders (compared to my last one, where the best I could do was 720p/672p.)

Nesguy · 30 October 2020 19:14

Switched to scanline type 1 and setting scanline 1&2 saturation to 1.00 gives the colors a bit more punch. Original settings here

EDIT: I think I still prefer type 0 as the dark scanlines can look a bit unnatural with type 1 and this mask. Anyway, they both have pros/cons.

scanline type 0

scanline type 1, scanline saturation 1.00