Please show off what crt shaders can do!

[DariusG]

It’s better to project pixel graphics with crt filter for a number of reasons.

a) low res are projected on higher res with scanlines, splitting huge pixel blocks and appear sharper and less blocky (that’s the exact thing a crt does, projecting 240 pixels on 480p pixels canvas)

b) pixel blending with a crt filter is better, rounding pixels instead of squares

c) crt has better colors, vibrant instead of office colors of lcd

etc.

Keep in mind LCDs were made for Microsoft Office, that means sharp, not vibrant colors that hurt the eyes (OS and all apps and icons and everything is calibrated for that matter with pastel colors). Low luminance because an Office employee will stay near the screen. Not caring about response times too, Office doesn’t scroll (a TV that is made for watching movies far from it has way way more luminance).

[RetroGames4K]

Not all CRT’s have strong scanlines, mine hasn’t, and some games tend to have more pronunciated scanlines than others. I have posted a few examples before, also Pal 50hz tend to have more scanlines resolution than NTSC, and scanlines gaps looks thinner and they had to stretch the image to fit on a pal CRT properly, on NTSC CRT, the normal thing is to have 240p line resolution, but Pal has about 288p, or something like that. Maybe I’m wrong in terms of scanlines resolution, but what I really know is that Pal CRT’s had more overall scanlines than NTSC.

[Jamirus]

The gaps probably tend to be a bit larger even on these small Trinitrons compared to the reguar slot mask tvs, you shot illustrates nicely how visible they can be in dark color space where I also see them on my non-aperture set. If you set contrast too high, they disappear, I would guess few people bother with calibrating, even in the crtgaming forum. I think that upvoted comment about coarser dot pitch isn’t correct either. Smaller sets have lower TVL, yes. But if you keep the same pitch and increase the size of the tube, you increase resolution addressability by that alone, I think? Maybe I’m misunderstanding “coarse” here.

[quaint-stimulation]

Another one for NES (pretty light weight, looks great at non-integer scaling):
nes-color-decoder + lanczos3-fast + ntsc-composite (256px 3 phase) + crt-lottes-fast shader params: LANCZOS3_ANTI_RINGING = “0.000000” MASK = “3.000000” SCAN_BLUR = “3.000000” CURVATURE = “0.000000” CORNER = “0.000000”

[Cyber]

Looks good for a start. When sharing presets or any type of code it’s a good practice to enclose them between the less than and equal signs that you see next to the quotation marks. It’s called preformatted text. So the above preset will look like this instead:

nes-color-decoder + lanczos3-fast + ntsc-composite (256px 3 phase) + crt-lottes-fast

shader params :

LANCZOS3_ANTI_RINGING = “0.000000” 
MASK = “3.000000” 
SCAN_BLUR = “3.000000” 
CURVATURE = “0.000000” 
CORNER = “0.000000”

This makes it much easier for someone else to copy and paste.

[quaint-stimulation]

Thank you, will do.

[quaint-stimulation]

ntsc-svideo-3phase + spline16 (cubic) + zfast-crt-hdmask (coarsemask)

Default settings this time, looks nice:

[DariusG]

[RetroGames4K]

Playing with mask gamma and scanlines a bit…

[oldpainless]

[kokoko3k]

Looks good! Since I’m thinking about introducing an (hopefully) improvement to how the glow is handled, and this would introduce a change in how the result will react to existing parameters, would you mind to share that preset(s) so that I can do my best to make them look the same after the change?

[oldpainless]

tv.slangp: https://pastebin.com/KHt2qFiS

Tate Setting: #reference “tv.slangp” TATE = “2.000000” PIXELGRID_OFFSET_CORE = “0.080001” ASPECT_X = “-6.000000”

8:7 Setting: #reference “tv.slangp” PIXELGRID_OFFSET_CORE = “0.060000” DO_BG_IMAGE = “1.000000” ASPECT_X = “-3.000000”

[Cyber]

CyberLab CRT Guest Advanced Presets anyone…?

[Hyllian]

A custom crt-royale preset:

[kokoko3k]

Hi there Hyllian, is nice to read you again!

[Hyllian]

Hey, nice to see you too! I’m just getting familiar with all the recent advancements. I’m fan of your koko aio shaders, specially monitor-base and monitor-slotmask presets.

[DariusG]

crt-consumer GLSL with some new tricks, color bleed etc

[RetroGames4K]

[c9f5fdda06]

Cute game, “Rolo…”!

Would you ever consider working with mask and slot strength/brightness? For example, setting mask strength to 90 makes a huge brightness difference for a negligible amount of detail lost on whites.

[RetroGames4K]

@c9f5fdda06

Would you ever consider working with mask and slot strength/brightness? For example, setting mask strength to 90 makes a huge brightness difference for a negligible amount of detail lost on whites.

Do you mean like this?