JPEG XL

the one i prefer is modestuart

it would be great if you post on twitter

and also on jon sneyers art

You can post on twitter too you know :) I don't know if I am able to keep up with your output :)

<#794206170445119489>art hashtag? 👀

Good idea

how to do should i save the photo in png

i'm doing

done

https://twitter.com/fabioruggeri22/status/1386371573569961995

hell piano is interesting

why don't retweet

also

'artWW

but i prefer hellpiano

https://twitter.com/hashtag/jxlart?src=hashtag_click

the hashtag was before it was only one image in 2015

should we use shorturl.at

Quilted cover https://jxl-art.surma.technology/?zcode=8y%2FKTM0rSSzJzM9TMOLiykxTSFawUzDkUlDQVQhOLVEwALKAgjXhNUBhSxAPJBMOxCYmUI5fuIK2gokpAA%3D%3D

The aliasing patterns when zooming out are nice on that one

<@228116142185512960> is there a way to let it do the current NN upsampling when zooming in more than 1:1, but a better downscale when zooming out to less than 1 pixel per pixel?

When I zoom in I want to see pixels and not interpolation artifacts, but when I zoom out it's good to avoid the moiré effects

Does FloatExpBits work in the command-line tool? I get "Unreachable code" when I use it in jxl-art.surma

Ah, no (visible) error if I use numbers with decimal point.

You don't get float numbers in the tree with it

The numbers are still ints

Everywhere in modular

It is just that they will get interpreted as floats in the end

For example

Bitdepth 10 FloatExpBits 3

That means that the numbers in the end will get interpreted as 10-bit floats, with 1 sign bit (so actually 9-bit 'unsigned' floats because negative gets clamped to zero), 3 exponent bits, and 6 mantissa bits

In the IEEE way of defining floats

E.g. bitdepth 16, FloatExpBits 5 are binary16 half floats

While bitdepth 16, FloatExpBits 8 is bfloat16

What's the default?

Note that I think RCTs are currently disabled when using floats

The default is no floats

That flag enables floats and specifies which kind

I did not use RCT

There are also constraints on how many exp bits you can have

At least 2 iirc and at most 8

(we use binary32 internally and it has to fit in that)

Hm it indeed doesn't seem to work in the tool

https://jxl-art.surma.technology/?zcode=8y%2FKTM0rSSzJzM9TMOLiykxTSFawUzDkUlDQVQhOLVEwNgYygaI14TVAcUsjIA8kFQ7EhpZQjl%2B4graCJQA%3D

In the cli tool it does work though

Or at least it does in whatever version I have here on my phone in Termux, maybe it is broken in the current public one

https://twitter.com/fabioruggeri22/status/1386391844385435648

Festive merchandise https://jxl-art.surma.technology/?zcode=C3IOUbDkCi4sTU2tSuXiykxTqFCwUzDgUlAAMpOBTEMgE8wJKEotg0qBgK5CcGoJEi88HMoBKg1390BRCZeDadM1MoPYUAlUZwzT5geyzgCXBX5Qp0DEgeoA

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOEKz0wB0oYGRiZcHqmZ6RklEHaQc4iCMVdwYWlqalUqF1dmmkK4gp2CAZcCkFUBZBkBmQq6Cn4KuqZQhiGXrkJwaomCuQEA "YASV" (yet another squeeze variant)

I gave it this name because it's very similar to the older squeeze patterns jon made

Squeeze is a bit difficult to tame

yeah

I created this based on that https://jxl-art.surma.technology/?zcode=C3IOUbDkCi4sTU2tSuXiykxTqFCwUzDgUlAAMpOBTEMQG8wLKEotAwroGoIFFBR0FYJTSxQM4LzwcAW42nB3D6gxcDlUbbpGZhA7KoHqTGHa%2FBAWYprvBzUCIm5kYAAA

looks like woven light

Try different RCT values, e.g. https://jxl-art.surma.technology/?zcode=C3IOUTA04AouLE1NrUrl4spMU6hQsFMw4FJQADKTgUxDEBvMCyhKLQMK6BqCBRQUdBWCU0sUDOC88HAFuNpwdw%2BoMXA5VG26RmYQOyqB6kxh2vwQFmKa7wc1AiJuZGAAAA%3D%3D

Oo

What's RCT BTW?

Something color transform I think

yes exactly

And with CbYCr:

The way to tame squeeze is to keep the values very close to zero, except for the first 3 channels which are basically an 8x8 R, a 4x4 G and a 4x4 B, in the default color space that is.

All the rest of the channels (I think there are 48 in total) are squeeze residuals, which means they should be around zero

Unless you want to get the usual blocky thing you always tend to get

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuXSVQhOLVEwNDAAAA%3D%3D

The residuals are very large here, causing it to recursively make large diffs at every resolution step

Something like this is better if you want to avoid the blocky stuff: https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuXKTFNIVrBTMAQxwoEMAy5dheDUEgVdQxArXEFbwRAmZGhgAAA%3D

Keep the residuals smallish, keep them around zero (a bit symmetrical, not much more positive than negative or the other way around)

Then the tendency term also gets a chance to play a role and make things smooth

And you can get nice textures

Squeeze is a bit like the Weighted predictor: quite powerful but hard to tame

This makes me think of a broadcast test pattern on an old CRT TV that is horribly broken - maybe the TV is on fire and melting while still trying to keep the test image on the screen

It means Reversible Color Transform. RCT 1 is YCoCg. The rest are simple color transforms that can be used in lossless compression like subtracting green from R and B, subtracting avg(R,B) from G, etc.

CbYCr is maybe useful because there for all channels 0 is the mid value (no color gor CbCr and 50% gray for Y)

Might allow smaller files in combination with Squeeze because you may not need to distinguish first channels from the residual channels

How do you use CbYCr?

RCT 0?

Or not specifying RCT at all?

not specifying

Taut red threads https://jxl-art.surma.technology/?zcode=C3IOUTC05AouLE1NrUrlykxTSFawUzDkUlAAMsOBTCMDIFtBQVchOLVEQRfOC1fQhqkCaYAIg7S4ewC5uoZgPkybkakpCt%2FQAtlQAwA%3D

Alien Control Panel

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4cpMU0hWsFMwAjHCgQwDLl0Fx7L0cG0%2FBV1DIDs8NTM9oyQ1RUFbwZgLyA9OLVEwBgA%3D

Leaf nerves https://jxl-art.surma.technology/?zcode=C3IOUTDnCi4sTU2tSuXKTFNIVrBTMORSUAAyw4FMIwMgW0FBVyE4tUQBxg5X0IapASmHCIM06IaH6%2FqFa%2FuFg7RaWoLFYZqNDAxQ%2BIYGKEYDAA%3D%3D

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4QpyDlEw4OLKTFNIVrBTMAcxwoEMAy5dBb9wBV0FQyAjPDUzPaMkNUVBW8GYC8gPTi1RMAUA

Dot gain

That's nice, and just 27 bytes!

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4QpyDlEw4OLiykxTCFewAzJ1FfxcFXQVjICM8NTM9IyS1BQFbSAXAA%3D%3D

Alien War Cemetery

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw5gpyDlEw4%2FIvykzNK0ksyczPA4pxZaYpJCvYKZiYg1h%2BQJYBl66Cn6uCroIhkBGempmeUZKaoqAN5AIVVEIVBKeWgOlwBUMA Extinguishing the Great Pyramid Chemical Fire

another one based on this one https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuUKcg5RMLTgykxTqFCwUzDgUlAAMpOBTCMQG8wLKEotAwroGoIFFBR0FYJTSxQQvPBwBbjacHcPqDFwOSMUbaZQKyqBygzh2vwQPJhCJOv8oGZAJIwMDAA%3D

working on making my own one rn from scratch instead of modifying another ( :

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw5ApyDgGS4ZkpQJ6RqRmXR2pmekYJmMmVmaaQrGCnYGgEZ5lw6SoEp5YoGIBEKoEiYEYFmKGr4BeuoGsKol0VjIBUuIIpTDkA Interfering Tubing

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuUKcg5RMDTj8i%2FKTM0rSSzJzM9TMOfKTFOoULBTMOLSVQhOLVEwhNLGBgYA Gearbox Sunset

it's pretty simple but i'm still learning how all this even works ( :

I made <@!179701849576833024> show some jxl art at his PhD defense 😆

not what I expected to happen as a question at the end of a presentation on *compression of graphs/networks* xD

"could you please elaborate on the connection between context trees and the phenomenon of 'JPEG XL art' that has recently popped up?" 🤣

hell piano

is the most popular on twitter

by what metric?

what i see me

i saw another in down that is 69 likes

i have only 19 views

so i can't compete

Forgotten ores https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOIKLixNTa1KVeDyL8pMzStJLMnMz1Mw5eLKTFOoVLBTMOBSUAAyw6FMBQVdBT8gNgSzgRJ%2BcAmQVHBqCZwHlEwGSppDuSDp8NTM9IyS1BSgtQhBmB4oCwA%3D

this one appears to not be working

is it using a newer version of jxl_from_tree?

Orientation maybe

I see a node "FramePos"

which isn't in the current

orientation is

even when i remove the FramePos argument it still fails though 🤔

ahh

i got it

FramePos and NotLast

are not in this version of jxl_from_tree

important consideration ( :

Yes those I added on Friday so they haven't been synced yet

Good idea. Added that and pushed it live! Only uses pixelated rendering when your zoom factor is > 1 🙂

cool!

would it be hard to make /* */ comments get prettified?

those were added recently

https://jxl-art.surma.technology/?zcode=VY69CoNQDEb3PMU3C6ItSLcOPoAODs6iqTdQvbXGwT69saitkMBJDvlJRRt%2BqcOVimFi%2FjAofwv3Wqn4HglRFECdjLCoUPuuM4kgInlgxh0xAYblhkCIzPLyZRPZIVZVsB6VydrkDf8XnqM%2FnwH22ZKldcqN%2Ffpr7gs3WgA%3D

for example

prettifying that does not look pretty 🙂

also I made an archive of some interesting ones(as long as they had a matching tree) in this channel and elsewhere

this is actually 163 of them

which is a significant portion of what's in this channel

the trees are really useful for any future artists i think

because they can see the trees needed to make certain types of images

Oh I didn’t realize they got added! I’ll look into it 🙂

on twitter you can found the art i did

in <#794206170445119489>art

<@!794205442175402004> I added some really crude handling for comments so it doesn’t break your comments, but I’ll need to rewrite my parser to give it better handling 🙂

The jxl_from_tree tool only has crude handling, e.g. you need to have whitespace between tokens (`/*foo*/` doesn't work, it needs to be `/* foo */`)

And in any case nested comments don't work, but that's the same as in C I guess

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOcKLixNTa1K5fIvykzNK0ksyczPUzDk4spMU0hWsAOyFBSAzHAg0wDIVFDQVfALBxKGYA5Qxg8ugyYH4oanZqZnlKSmKJhygbkKhgYA

'Warm Bokeh Sierpinski'

this is super

Tyre trails https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4QpyDlEw5vIvykzNK0ksyczPUzDj4spMU0hWsFMw5FJQADL9gEwDIFNBQVfBzxVIGEI54amZ6RklqSkK2mAhXYXg1BKgSgA%3D

I encountered trails like that before, but these are nicer ones than what I saw before

it should be cleaner

i can't see desktop icon jildo wallpaper

You mean too much contrast for a wallpaper?

You can do something like this to lower the contrast: https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4wpyDlEw5vIvykzNK0ksyczPA4pxZaYpJCvYKRhyKSgAmX5ApgGQqaCgq%2BDnCiQMoZzw1Mz0jJLUFAVtsJCuQnBqiYIpFwA%3D

thanks

<@685944681955328025> doesn't natural orientation give a better 'horizon' effect? https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4QpyDlEw5vIvykzNK0ksyczPUzDk4spMU0hWsAOyFBSATD8g0wDIVFDQVfBzBRKGUE54amZ6RklqioI2WEhXITi1BKgSAA%3D%3D

(also trims it down to 27 bytes)

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4QpyDlEwNOTyL8pMzStJLMnMz1Mw4uLKTFNIVrBTMORSUAAy%2FYBMAyBTQUFXwc8VSJhAOeGpmekZJakpCtpgpboKwaklQBYA

Squeeze Bitdepth 4 RCT 11 Orientation 2 if c > 1 if N > 2 - NE - 3 - Weighted +4 -Set 8 -Set 43

can't access property width t is null

Increase the bit depth to reduce the brightness

Heh, the orientation was my artistic choice 😋

can you improve this

https://jxl-art.surma.technology/?zcode=Lcg7CoAwEIThfk8xF0hh0lsothFUsBazmm18sTae3kRshm%2F%2B%2FryZH6ZKNPChEY66ekDhqL2EN51U9g2WSBbMKGEdAck%2BORMw8E0a%2B5%2BRZY3KAbA5GfSsH01G8QI%3D

add colours

how to do

Just keep trying new values! "Featherlight" https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVCw5ApyDlEw4%2BLKTFNIVrBTMDLmUlAAsv2AbBBTQUFXwc8VSJhCOeGpmekZJakpCkZGXCB%2BcGqJgq6pAQA%3D

zoomed it look very weird

but this is the first that feels real

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw5gpyDlEwNOPyL8pMzStJLMnMz1Mw4uLKTFNIVrBTMDLlUlAAsv1AbCBTQUFXwc8VSMA44amZ6RklqSkKYBFdheDUEgVdEwA%3D

Is this good?

i prefer jildo version

but i want more blur

same image as jildo but with more blur

Well it's not an image editor where you can just say "more blur please" 😅

Made this from that https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVCw5ApyDlEw4%2BLKTFNIVrBTMDLmUlAAsv2AbBBTQUFXwc8VSJhCOeGpmekZJakpCkZGEJVgXQZgWag%2BQwgPpDo4tURBF4nvp2CEbo4xAA%3D%3D

Tried to add a part from another image that had some "blur" like effects

Got nothing from it

Tweaked some values

Then got this

Very nice <@!427945413669158912> !

based on this

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4gpyDlEw5uLKTFNIVrBTMLLgUlAAsv1AbCBTQUFXwc8VSBhDOeGpmekZJakpYFmYJrAcVJchmANSGpxaoqCL4PopmKCbYQwA

well... you could gaborish it 😛

(I know we don't expose it)

or even EPF it...

and also extra points if you inflate the size as much as possible

without looking pixelated or much different

submit

Right

We could gaborish a mild blur, epf would probably do something not so blurry when there are strong edges I guess

Also doing 2x, 4x, 8x upsampling could be a way to make things blurry

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4gpyDlGw4OLKTFNIVrBTMONSUAAy%2FYBMCyBTQUFXwc8VSBhBOeGpmekZJakpCpZcKFwLC4hGkBkQtSimgNQGp5Yo6BrAuX4KJuhmGgMA

And if it's Squeeze jxl art, you can also start it with `if c > 40 - Set 0` or something like that and it might make things more blurry (or more blocky)

That one looks like it might be painful on a HDR screen, but I like how that white makes it look like it's some kind of catalogue or an array of bacteria-growing petri dishes or something

`Weighted 88` at Bitdepth 2 is a boss move

so basically are you saying that colours like these make screen last less

You're producing extremely bright whites that are clamped on SDR screens but on HDR screens you might see it as the brightest the display can do, which could be quite blinding

Wander of coherent light https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAwNOAKcg5RMDLi8kjNTM8oAQoYmXCFZ6aA5MwMDLi4MtMUkhXsFIzMuRQUgGw%2FINsYyFRQ0FXwcwUSZlBOOFh%2FagrILBA%2FOLVEQdfQAAA%3D

then if you want make your version

those are improving

It wasn't meant as a criticism, Fabian, but as a compliment :)

One advantage of Squeeze is that you can do somewhat larger images without having to worry about group boundary artifacts

The last squeeze residuals are only half the image dimensions, and the default squeeze script takes aspect ratio into account, so you can go up to 2048x1024 or 1024x2048 and still every channel fits in the group size

i don't want to post on twitter an image that is too bright

It won't be too bright

Twitter does not support jxl

so if someone can make right for the display

is better

The png is just SDR sRGB so it will not be superbright

even if they use their name

or they don't publish

https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw5QpyDlEw4PJIzUzPKFEwNDAy4QrPTAHKgJlcmWkKyQp2CoZmXAoKQLYfkG0AZCoo6Co4lqU75uQAGYYwkXCwIakpEBFdheDUEgUDAA%3D%3D

'Infinite Crayons'

The way https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw5QpyDlEw4fJIzUzPKFEwNDAy4QrPTAHKGJoZGHBxZaYpJCvYKRhxKShAmcYGQDaYVwnkWZqZgLkKCroKfuFAwhDODU4tUYCrDQeqNcAiBeOZQizwA1nABTXOFUiYQTnhYPelpigYGXEBAA%3D%3D

https://jxl-art.surma.technology/?zcode=ZYxBCsJADEX3OcVfF4a2Y9HiQqhuXCmo0AM4mU6gVq3R8xuLK929vB%2FeWjTwTRNqOmxOKGnL0iVFWfiKWgm2TEgSccbKHgCHIyucL4xN70w7P7fjMzWvrul7Az%2F7mnYqckDpF0R5hv2Ix%2FXCmmTocH%2BKMoLEyCMPukSW%2F5bqv1BFbw%3D%3D

The 127 was a typo but I like it more than what I was trying to do

'Pint of Bizarre Beer'

Solar crown https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOYKcg5RMDTi4spMU6hQsFMw4lJQADKTgUxDIBPMCShKLYPzFRR0FYJTSxQM4Dw%2FhMpwoDJjHMrCUzPTM0pSU8CqoZIA

thought this one was cool so I remixed it https://jxl-art.surma.technology/?zcode=8y%2FKTM0rSSzJzM9TMOZyTop0LuLKTFOoVLBTMDQw4FJQAHL8gBwjEBvMqwDyTA0NwVwFBV0Fx7J0P22%2FcCALXcwVLqarEJxaAjQDamA4yEATA2QpE7j54WCroUaB%2BLrhICGYCFgsGUUALmSEJAQyOVxBW8EUixiyOoiIGRcyXxcYFMiyhgA%3D Crystal Palace

oops, sorry for ping btw

from the same image https://jxl-art.surma.technology/?zcode=bYzBCsIwEAXv%2BxXvXgLN1vRYEPEaQYWcpbSSSwUJon%2FvpjUhLd525i1zevphCrfgHxMaOh%2BuYE1%2BxAcddF0TIGAFdvGe6S1kzIKAwv51t5V1cvHGHbNTuAwBnIJOEvwrllMedcpHVi6qZGbXr0RWXKhYdqhg%2FrjybzEtrbnZsKYv Inverted Blast

Variation on this but with some stuff from another tree mixed in https://jxl-art.surma.technology/?zcode=bY%2FBCsIwEETv%2FYq5h0CbNoIXoUjRUxQVclaJ0ksLsRT9ezetCYn0tvN2ecscbGu64Tq0fYcyO20vEEXWPvDBBkWeZwAFRaFy85TelKScI8BRj0%2FFlKZJ%2FLEmMI6zGSC8UJNC%2FIzxKiwLr3eZa4c8mdg9AQGJCDmzBoNcYPHdTFaxXe%2F2JCuTj0drxvr2aqxN%2FkxVNVPgC2y9cFZFzBUvqfgX

lol added more stuff to it again, probably my last variation on this https://jxl-art.surma.technology/?zcode=bY%2FBCsIwEETv%2FYq5h0CTtIIXoUjRUxQVclaJkksLsRT9ezfVlqR623mzzOzuvLNNd%2B5c20Blh%2FUJUmTuhhdWEHmeASQ0iSLMg3qSKsuPBDiq%2Fq6ZNjTJGasnxnG0HeQYaChCfhNjazLFGB80NwGNZGDXBExIRig5TcyMcFoRB3CqZVjEHWazpUiV9O697avLo%2FY%2BaRuaDNPg6pct%2F6wVEQvvK3r%2FDQ%3D%3D

it looks like this without RCT <:FeelsAmazingMan:808826295768449054>

I made a modification of jon's sierpinski archipelago https://jxl-art.surma.technology/?zcode=y0xTSFawUzDgykxTCChKLQOyDY0suBQUdBWCU0uA4goKQBk%2FoLCRKZANFHYsS%2FfT9gsHskwNUEW0FQxBxlQCFZsaQHWG6wIl7BR0jUBKkQQMwXyYNUampih8sMEocjA2AA%3D%3D

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOYKcg5RsODyL8pMzStJLMnMz1Mw4uLKTFMId%2FdQsFPQNeVSUADykoFsQyATzAkoSi2D8xUUdBWCU0sUDOA8P4TKcKAyYxRlhmZwbnhqZnpGSWoKWDlQsR%2FIPkOIXl0Fx7J0x5wcIMOCC125CQA%3D "Equilibriste"

1 value change https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOYKcg5RsODyL8pMzStJLMnMz1Mw4uLKTFMId%2FdQsFPQNeVSUADykoFsQyATzAkoSi2D8xUUdBWCU0sUDOA8P4TKcKAyYxRlCE3hqZnpGSWpKWAhoFo%2FkHWGEHldBceydMecHCDDggtduQkA

last one looks like a fingerprint

well a giant fingerprint

It's interesting how in some trees small changes cause small differences, while in others things are way more chaotic and a small change completely changes the image.

Tweeted a bit about jxl-art: https://mobile.twitter.com/pwuille/status/1387121733669322753

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTiCnIOUTDk8kjNTM8oUTA0MDLhCs9MAUmBmP5Fmal5JYklmfl5QEVcmWkKyQp2QJaCApAZUJRa5phU7FpUBBQzAoopKOgqhIMNSk0BGm0OFQpOLVEwgGjxA6rUtYBJOJalO%2BbkABmYmi0tAQ%3D%3D

'Groovy Alien Forest'

It's an easily adjustable one, if you want smaller trees and more green you can move the values in this direction: https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTiCnIOUTDk8kjNTM8oUTA0MDLhCs9MAUmBmP5Fmal5JYklmfl5QEVcmWkKyQp2QJaCApAZUJRa5phU7FpUBBQzAIopKOgqhIMNSk1RMDSFCQWnloClgVr8gCp1LcyhEo5l6Y45OUCGEbpmSyMA

Or if you want e.g. bigger trees and a bit of pink instead of green, you can do this: https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTiCnIOUTDk8kjNTM8oUTA0MDLhCs9MAUmBmP5Fmal5JYklmfl5QEVcmWkKyQp2QJaCApAZUJRa5phU7FpUBBQzAoopKOgqhIMNSk1R0LUwgAoFp5YoGEC0%2BAFV6lqYQyUcy9Idc3KADAzNRpYWAA%3D%3D

Changing the numbers slightly creates completely different patterns (like different seeds to a random number generator) but the kind of shapes are still similar.

Another variation: "Seeds in vacuum" https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTiCnIOUTDk4spMU0hWsAOyFBSAzICi1DLHpGLXoiKgmBFQTEFBV8EvHKjeHMoJTi1RMIAo9gOq0bWASTiWpTvm5AAZxlCB8NTM9IyS1BQFQ0tLAA%3D%3D

Another refinement https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTiCnIOUTDk4spMU0hWsAOyFBSAzICi1DLHpGLXoiKgmBFQTEFBV8EvHKjeHMoJTi1RMIAo9gOq0bWASAC5lUCusSVEE0ilY1m6Y04OkGGMKQQzOjw1Mz2jJDVFwdDSEgA%3D

These are all the same image with various RCT values. I will spam the channel! https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTmCnIOUTA04uLKTFOoULBTMOBSUAAyK6FMMCcZyDEEcxQUdBXCUzPTM0pSU5CFwhUMzbgg7ODUEkxDEMIwtqEBAA%3D%3D

Can the color space change in a single image?

I don't think that would be needed or possible

you can change RCT per group

it helps quite a bit for lossless

Can a tree have multiple groups or is it one group?

Oh yeah

I read that jxl from tree is for single group

You can have multiple groups now, e.g. https://discord.com/channels/794206087879852103/824000991891554375/832658976965525525

In the bitstream, there is a global tree (that's the one you define in jxl_per_tree) and optionally one per group

But you can also do everything with the global tree since you can select on group

RCT and modular transforms in general can be global or per group, but the current tool only allows you to do global ones

(it would take some plumbing and syntax invention to let you specify transforms per group)

https://jxl-art.surma.technology/?zcode=TcuxCsJQDIXhPU9xdrmQXHEVqri2okJn28Y2S5Xb0Oc3qIPbz%2BE7B%2FNBXz5BMl2ON2ShppjOfnd7zhAisgd67COByHPRteqWUymx5diAhGod202NJMyUcFUHf3UdKG2ZP%2B5fQuT3bdXGyXXAjvkN

Change the -100 to +100 and you get:

https://jxl-art.surma.technology/?zcode=TcuxCsJQDIXhPU9xdrmQXHEVqri2okJn28Y2S5Xb0Oc3qIPbz%2BE7B%2FNBXz5BMl2ON2ShppjOfnd7zhAisgd67COByHPRteqWUymx5diAhGod200NYaaEqzr4i%2Bswacv8YX8wQeR3bdXGyXXAjvkN

'Nuclear Reactor Slime'

i've noticed that RCT in some cases can "change" an image like this too

not really change

but make some features a lot more apparent

when they were previously not easily visible

Yes

That's likely because it can make previously negative (so clamped to zero) values positive, or move things from B to G where it's much more visible.

https://jxl-art.surma.technology/?zcode=XYvBCsIwEETv%2BYq5S2ATLXgSqvQaRYWctV3bXKrEpeDfu1KJ4O3Nm5ltko4fMsB5c9yd4cw%2BJx7lIuk%2BYmVMuqHFRj2g%2BFIkRcAiwH8pwvq5b0uv4ZB5qq%2FPJme18%2Fazrqc%2BLgJcRUWdWH63oGu7JPo%2FWFRFRU79INxhTfQG

'Alien Propulsion Engine'

Sky warp 1 https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTmCnIOUTA04uLKTFOoULBTMOBSUAAyK6FMMCcZyDEEc8DcgKLUMteiIqCgKVRQQUFXwS8cSBgaGCAJhYcrGJpxwXmpmekZJakpUKN0FYJTSzCtQwjD2IYGAA%3D%3D

https://jxl-art.surma.technology/?zcode=ZYuxCsJAEET7%2B4rp5eBOEayEKLZRVLhakzXZJsq5BPx7J0GSwu7Nm5mdWi0va7Fx5%2F0V0R2zSmc302fH5Jw%2BUGFLBIgfYiACHuUoB0rwv76aeoZTlr64vw850y5HO6yLvkkLntdhUhex%2BVZy7VdzmUSb1qQmxn8ZQ%2FgC

it looks like an alien ice cream

wait only 38 bytes

How does one do a spiral in a tree <:Thonk:805904896879493180>

oooh this looks nice

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTgCnIOUTDk8i%2FKTM0rSSzJzM8D8rgy0xSSFeyALAUFILMCyDQAMhUUdBXCFXQN4UyovB9QXtfICKbEvSgxBWSagq4ZTGVqZnpGSWqKgpGlOQA%3D

'Crystallization'

34 bytes

Encode a bunch of spiral shaped images to jxl and look at their trees? <:megapog:816773962884972565>

i took 4 bytes to do it in 10-bit with some color gradient in the Cg channel, you can also do it in 30 bytes if you don't want that: https://jxl-art.surma.technology/?zcode=c8osSUktKMlQsOAKcg5RMOTyL8pMzStJLMnMzwPyuDLTFJIV7IAsBQVdheDUEgVdQwMDIAco7gcUh%2FJAku5FiSkgrQq6RlCR8NTM9IyS1BQFoCIA

a variant:

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTgCnIOUTDk8i%2FKTM0rSSzJzM8D8rgy0xSSFewUDLgUFIDMgKLUMigPmW9mABFRUNBVCE%2FNTM8oSU1R0DXGFDPigggEp5bAjPQD6tc1hBqgq%2BBelJgCcoCCrikXumYjAwA%3D

'Metallic Crystallization'

https://jxl-art.surma.technology/?zcode=ZY%2FBCsIwEETv%2BYr5gYVNpB4FFfGmRQXP1aw2l1bi0u83mhSKvc08mAezCerlpS0sm9P2AmuOMUinjYa%2BSy08cMcqhzrKsL69dzEmUs1IMhDOoiDHPOZJ5FHGBijj0qZ9yZkAhKuEZ6viQYs5cyaD7P4pDmlPtggI%2B9j47xlQZf7Hjj8%3D

'Child Scribbling All Over A Valuable Piece of JXL Art'

the magenta is weirder than all the other colors there

https://jxl-art.surma.technology/?zcode=ZU7LCsJADLznK%2BYHFrIVPArVu0ot9Cw2toFSpYTi55tlVxA9ZR6ZYfZqvTxtRGRqDi0inRaV2a6mj9mZ3nHDLoOXA6aADqHycxHzFPPnhwlweF5kLeybbzkrgBeIDqNJj7D51yrKQqovlUfPh8jFqNehnqa04SeZxrwB

'Bright Abstract Composition'

I was thinking "JXL marker bleed"

it makes me think of cell organelles

it's the wobbly edges, i dunno

still going to call it 'Bright Abstract Composition'

https://jxl-art.surma.technology/?zcode=VcrBCsJADIThe55i7hJo15CjUL1XEGHPYtc2UKpIEB%2Ff2Krg7Zuf2Zp35eYD6ooOuyNSov3dyuQnt%2BsEIbILztigJiD4DFZBgJHnuIgXxqONB6vO8xdE5BPe9%2BbRN%2BMIXv%2B3vGrBkuibcrF%2B8NJBVV8%3D

Is this a modification of the earlier trees?

I usually start from an existing one and change something 😅

I'm the same way, I keep an archive of the trees of a lot of them

Then I find a particularly nice one then play with it

I've gotten good results transplanting parts of trees into others

Well, the leaves

The general pattern of ``` if (some neighboring pixel) > (some low number) - (some predictor) - (small number) - (some predictor) + (large number) ``` tends to produce interesting stuff

Except with squeeze right?

You said it tends to look like that grid pattern if you don't get within a certain range of values from what I remember

Oh yes, I am talking about non-squeezed images

With squeeze you want to avoid large numbers because they quickly escalate things to the fractally block pattern

Has anyone managed to get an image that looks completely like white noise? I haven't been able to do it

Good question. Making it look like really random noise is not easy...

you can do something like this: https://jxl-art.surma.technology/?zcode=c8osSUktKMlQsOAKcg5RMODyL8pMzStJLMnMz1Mw5OLKTFPwU7ADiiso6Co4lqX7afuFK%2BgaGxuDBcJTM9MzSlJTFEACAA%3D%3D

but that's still quite structured

Elementary cellular automaton template: https://jxl-art.surma.technology/?zcode=jZJPC8IwDMXv%2FRQ5C9Vk6MWDB0XwpKCC5%2BI6DcxNZoZ%2FPr3d6tTJxjy275e8vDZTltCe5Qik1rMtoFplbBMxwmni7nYcFhoGQ7WwfDgKjChQiiO4w8TRAIMe7G0c57HJwOSSnoy4ytBGnHDRZAy9gcNcxfJVUdb0qe8FL%2B10oWoqL0qAPoBH9HL%2BbvBm8MMAaNhY%2BSWonXA6%2FuGCTS5UJ6iNKKJiQ9SvGQgbZ9A1C8KuIQg7ov5jg9j1oogtWZ0WcXYRyNIrlJ9vYn74RapW4OYMR4TVW%2FhjNUDd7DvhS3kC

'Failed white noise'

https://jxl-art.surma.technology/?zcode=jZExC8IwEIX3%2FIo3V65NrIKToFLsFEGEzEJjm6WKBH%2B%2Fl7aU1HZwu5f7cu9dcnS%2Bsi%2FfYCeupxuUuLydbf3du2fLyriKe0quN6K0rm58Xwv3gMYepATAtTmXrCSLTupRAFmCVKVIskGHtqHx8gipGAKIh9A2BuQcyCMPueghJxZyMiFQpItpkgGUMdiZGX6hH0jNIFA%2BifyvoVwwXIDmhgV6iHD41HrFKYnDi3Bguv%2ByVdjmCw%3D%3D

I mean, one could add noise generation to jxl tree..

it'd be 32 bytes though I think

(of overhead)

There is probably some (non-elementary) cellular automaton that can be represented in a tree and that does produce noise-like output, I just have no clue how to find one

Fabian, we need some randomness. ^

Hello al ! First, all you JXL are very nice 🙂 Bravo ! I have a very basic question, why "- W 1" creates a 45% "fade" while I would expect soemthing horizontal or vertical ? https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOfyL8pMzStJLMnMz1Mw5OLiUlDQVQhXMAQA

2) can we do animation ? (like conway game of life)

`-W 1` makes a diagonal gradient because of the edge conditions: in the left-most pixel column, there is nothing on the west, so there W is defined to be equal to N.

if you do `if x > 0 - W 1 - Set 0` you get the horizontal gradient you'd expect

simple gradient using 10-bit YCoCg:

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTg8i%2FKTM0rSSzJzM9TMOQKcg4BklyZaQrJCnZAloKCrkJwaomCAZAFFKwACoKYIOFwsDRYOBkuDJHQNYRzwJoB

Regarding animation: yes, jxl can do animation, but no, jxl_from_tree and the online tool do not support creating animations yet. To do a game of life type of animation would be hard because a frame cannot really "see" the previous frame in the sense of accessing its pixels and going in different tree branches depending on the value. A frame can be decoded independently from another frame - though it does get blended over the previous frame(s) so that may be useful for some kinds of animated jxl art.

thank you ! very interesting, maybe we have to wayt mxl (mpeg XL :))

To do an actual game of life like thing you could in principle make up to 4096 frames using a single hidden reference frame that has that many channels, and then using each of these channels consecutively as the 'alpha' channel for a patch-blend to the actual visible frames. The channels would be able to somewhat access the previous state of the game of life in the MA tree using Prev / PrevErr. That only lets you see the 'old' current pixel though, not its neighbors.

it would get tricky

JXL is so simple and create so complex output ! that very nice !

but just doing one tree per frame should be easy, which should still be a way to have interesting animated things in something like 30 bytes times the number of frames

'The Alien Blob Monster With The Golden Teeth'

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTkCnIOUTDk8i%2FKTM0rSSzJzM9TMOHiykxTSFawA4orKACZlUCmAZCpoKCr4KegawhlBqeWgIWBKvyAKnQtIGqgXGMDCBek0rEs3TEnR0HXGFkkXBtolhHM3PDUzPSMktQUBXNTAwA%3D

'Alien Pachinko'

https://jxl-art.surma.technology/?zcode=TYzBCsJADAXv%2BxXvLoFmsXgTqnhdwRZ6FhvbQGlFQunnG3UFb%2FOGSQ5qnTxsAHO4HBtwOD9VJruazhNiCHrHDXv3gOPqWDgChBbEGWuxj%2FYieUGx%2BEZ5l3m%2B02rpq3EEbeO%2FSpt0Au1%2Bn0X7waQD%2B%2BUL

'Meteor Shower'

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTgCnIOUTDk8i%2FKTM0rSSzJzM9TMObiykxTSFawA4orKOgqBKeWKJgYGADZQGE%2FoLAuhAfmh7t7AEUgXJBix7J0x5wcBV1DDBFTLgg%2FPDUzPaMkNUXB1MAAAA%3D%3D

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOUKcg5RMODyL8pMzStJLMnMz1Mw5gouLE1NrUrl4spMU0hWsFMw4VJQADL9gExdEBvMC3f3APINwFwFBV0Fx7J0x5wcBV1DDBEjLgg%2FPDUzPaMkNUXBggvEDU4tUTAAAA%3D%3D

When your motherboard overheats...

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOUKcg5RMODyL8pMzStJLMnMz1Mw5gouLE1NrUrl4spMU0hWsFMw5FJQADL9gExdEyAbzAt39wDyDcBcBQVdBceydMecHAVdQwwRYy4IPzw1Mz2jJDVFwYILxA1OLVEwAAA%3D

Ooh that's squeeze. Of course.

Man-made sun https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOIKcg5RsOTiykxTqFCwUzDgUlAAMiuhTDAnGcgxBHMUFHQVwlMz0zNKUlPgQkAVfnDlUIFwFAGImnBdkDJdI2RxkIHBqSUK6GLhCrqGqNrD3T1AzkBX6FiW7piTo6BraohDAkkHyFiIMoSlugp%2BrkBFAA%3D%3D

Splash https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOIKcg4Bkv5Fmal5JYklmfl5ChZcXJlpChUKdgoGXAoKQGYllAnmJAM5hmCOgoKuQnhqZnpGSWoKXAiowg%2BuHCoQjiIAUROuC1Kma4QsDjIwOLVEAV0sXEHXEFV7uLsHyBnoCh3L0h1zchR0TQ1xSCDpABkLUQaxFMTWVfBzBSoCAA%3D%3D

these look pretty professional for glitch images

Zoom https://jxl-art.surma.technology/?zcode=8y%2FKTM0rSSzJzM9TMOLiykxTqFCwUzDgUlAAMiuhTDAnGcgxBHMUFHQVwlMz0zNKUlMUjKFCQBV%2BcOVQgXAUAZC24NQSuCEwRe4eIJOR1YFUuhclpoCcpqBriCbjWJbumJOjoGtigNADdBDUXIQdugp%2BrkDdAA%3D%3D

i have a name for this file ! "it's not a bug, it's a feature" 😄

Quite literally. There is no bug here; all the effects are intentional.

Strictly, the algorithms are intentional. The effects can be surprising.

It legit looks like a file that got badly encoded, like something from <#805007255061790730>

Toffee chocolate meltdown https://jxl-art.surma.technology/?zcode=TYzBCsJADAXv%2BYp3l0B3axUvQiteV1DBs9jYBkotEsTPN%2BoK3mYew2vUWpmsR4i03xxRRtrdVUY7m95GRCK94oI1AgGOT8fCEWCcwCHjQewze5G84Fh8o%2BxV1ndaP7p6GMDz%2BD%2BlWdqCl79n0a43abGqFi8%3D

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQsOTiykxTSFawUzAEMSqADFMDAy5dheDUEgVTQ0MoywAkWYlLEgA%3D#color_pattern_1 (you can put your title in the url to keep trace of it)

https://jxl-art.surma.technology/?zcode=dc2xDoIwFIXhvU%2FxzySGdmBgcfAFHJwca3sNNUANvQR9e0vC6nS%2B5B%2FOJWmUtw70pm2455XgZ%2FxYMjGjQyo0rTHpSeCM2%2FGp6Kw1J26idM4dsnv8%2Fo3muvBai%2BJjJNUpeEKeJpmVh4x5q3eCLiI%2F#color_pattern_1

negative alpha is a funny thing, and the spec actually allows it (if `clamp=false` in the BlendingInfo header field)

take for example this image

I can overlay it with 50% alpha and with MINUS 50% alpha to something else

on the left is using the usual positive alpha of about 50%

on the right the alpha channel has a value of -50%

``` Bitdepth 10 Orientation 3 RCT 1 Alpha NotLast /* bottom layer: misaligned xor pattern */ if c > 2 - Set 1023 if c > 0 - Set 0 if W-NW > -1 if NW-N > -1 if N > 253 - Set 1 - W + 1 - NW + 0 - Select + 1 /* top layer: flame thingie */ if c > 2 if x > 511 - Set 500 - Set -500 if c > 0 if c > 1 if x > 0 - W -1 - Set 511 if y > 0 - N -1 - Set 511 if N > -500 if WGH > 10 - AvgW+N -2 - Weighted -1 - Set 1500 ```

(won't work in the current tool yet, multi-frame with blending will only be there at the next sync)

the spec says blending has to be done as follows: `sample = (new_alpha × new_sample + old_alpha × old_rgb × (1 - new_alpha)) / alpha`

where `alpha = old_alpha + new_alpha × (1 - old_alpha)`

`old_*` is the bottom layer, `new_` is the top layer, and sample is the blended value

(oh spec typo: old_rgb should be old_sample!)

anyway when the bottom layer is opaque (old_alpha = 1) like in this example, it simplifies a bit

`sample = new_alpha × new_sample + old_sample × (1 - new_alpha)`

normally alpha would be in the 0..1 range

but with negative alpha -0.5, you are first multiplying the bottom layer value by 1.5 and then subtracting 0.5 times the overlay value, which is... interesting

with the RGB set to zeroes in the overlay, you can use this to do both brightening and darkening of the layer below, using positive alpha to darken and negative to brighten.

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQsOAKcg5RMODyL8pMzStJLMnMz1Mw5AouLE1NrUrl4spMU0hWsFMwNOBSUACy%2FYBsXUMDEA%2FOt7QE8xQUdBX8whGyUL4hhAdkK0BkdBWCU0sUDAA%3D

https://www.google.com/url?sa=i&url=https%3A%2F%2Fattivissimo.blogspot.com%2F2015%2F05%2Fil-vestito-biancooro-o-neroblu-adesso-e.html&psig=AOvVaw0q2cYUezMYksQAmXfG72YK&ust=1619893274436000&source=images&cd=vfe&ved=0CA0QjhxqFwoTCIjXl_DKpvACFQAAAAAdAAAAABAD

it can be transformed in this

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOYKcg5RMDTl8i%2FKTM0rSSzJzM8DCgYXlqamVqVycWWmKSQr2CkYGXIpKADZfkC2rqGBAZAH51tagnkKCroKfuEIWSjfEMIDshUgMroKwaklCgYA

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQsOAKcg5RMODyL8pMzStJLMnMz1Mw5AouLE1NrUrl4spMU%2FBTsFPQNTXgUlCAckBMBQVdBceydMecHAVdQ5iAH5DNBWKEp2amZ5SkpigYGhgAAA%3D%3D

'Alien Mass Tourism Holiday Resort'

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMObyL8pMzStJLMnMz1Mw5AouLE1NrUrlCs9MAcqaGhpxeaRmpmeUKBgZmFhwZaYpJCvYKRiZcikoANl%2BQLYhkAnnWII5Cgq6Cn7hCrrGyDwIB8gEs3QVglNLFHQNAQ%3D%3D Tetris Land Spire

this is a modification of this btw

maybe there should be a warning on this channel's description for photosensitive people 😅 some of these like the one I just made have some pretty intense color contrasts and repeating dark/light colors

personally I'm not but I can see how some of these could be bad for photosenstivity

When they turn on the lights at night:

is this using an RCT?

link?

The greenish yellow is typical RCT 1

it's RCT 8

for me 1 gives almost the same result

It is exactly the same

what does rct 8 do?

a transform on a color that isn't present in the first place?

ok, same for this image.

0 and 2 are the same too

It's the value of the -C option to cjxl that you're setting

0 means "do no RCT transform", 1 means YCoCg, any other value N > 1 means 'use RCT number N-2'

In the bitstream syntax, YCoCg happens to be 6

So 8 for the -C option

That param has grown a bit organically as you can see

Basically 0 and 1 are just shortcuts, and besides those, it is really encoding N-2

I see.

The RCTs take 3 consecutive channels (here always the first 3 but you could also do it on other channels), permute them in one of the 6 ways, and then apply one of 7 transforms, of which YCoCg is one

the signalled number is N-2 = rct_type

so you divide that by 7 to get the permutation type

and the remainder (rct_type % 7) is the kind of permutation

so rct_type 0 (RCT 0 or RCT 2) is just RGB, while rct_type 7 (RCT 9) would be GBR, and RCT 16, 23, 30, 37 are also just permutations of RGB

spec is written from the decoder perspective and not designed for being particularly easy to read 🙂

Teeth of the cetacean https://jxl-art.surma.technology/?zcode=TY5BCsIwEEX3c4p%2FgUBiq%2BBGqO4rSCHrkE6bQElFBs%2FfkVhxM7z5vPnMNcvIT0k40eM26Ly%2FMhcJkteChihPiLjAEaDoFQ9WGTDwnOckPMK4PfFw56aqvarmWN3vWrWP2L3nbln00P6i%2Fq9mL3atJRqY9b11giRGZAmRQ9kA

Lavender https://jxl-art.surma.technology/?zcode=C3IOUTA05vIvykzNK0ksyczPUzDj4spMUwhXsFMwMuBSUNBVCE%2FNTM8oSU1R0DWE8MMVDC2Nubh8EstS81JSiwA%3D

Smile, Rufus! https://jxl-art.surma.technology/?zcode=C3IOUTA25vIvykzNK0ksyczPU7Dg4spMUwhXsFMwMuZSUNBVCE%2FNTM8oSU1R0DUE8%2F0UjEwNuLiCczNzUnUUgkrTSosVAQ%3D%3D

https://jxl-art.surma.technology/?zcode=TcxBCoNADIXhfU7xLhAYlS7cFNS9lVboutRUA2JlCJ6%2FGRHp7vtDklptkNUmlHRvemR0iyqLvUy%2FixfpB29cXY6ui7J5hP%2FIQyDGQwzZKS52PsFplrZb3%2BRLIOCIRIBRbWM1z%2BD8aL8paIfoOJkM8F8%2F

No idea for a title

<@228116142185512960> when I accidentally tap the help button, I lose any changes I made (when I go 'back', it reverts to the old tree)

https://jxl-art.surma.technology/?zcode=TY3BCoNADETv%2BYq5l4WtvfQk2N6ttIU9i0YNiC0S%2FP4mWsHbe5MZchNt%2BasDrvS8v3Gmxyw8aa3ymcxIOjTIjQyqaubFJR4ti5ECXqyW7xQ2LJY%2BncrkA1%2BU1l4vwN8cgbVYjCPC5RDYEiEjt8TSD8qtf%2FgB

That is surprising. It saves on every keypress. Which browser are you using?

Chrome

Can you trigger that behavior (lose some code on purpose) and then do a refresh? I wonder if the BFCache is messing things up

I think it reverts to what is in the url or something

OH

It’s interaction with `zcode`. That would make sense

hm

My quick fix would be to make Help open in a new window by default

Or I remove the `zcode` parameter after load

that seems better, actually

Or both

Help in a new window is probably useful, I suppose you often want to see both the help and the editor

Another fun thing to add would be to do native decode when possible - not sure how easy it is to do that

that should be easy to do/detect

Pushed version `62fc8cf` of https://jxl-art.surma.technology/ - Help opens in a new window - `zcode` parameter gets removed once code in textfield and `zcode` no longer match - Share URLs will automatically compile the picture on open

'Meat Grinder'

https://jxl-art.surma.technology/?zcode=NYvBCsJADETv%2BxXzA4GsVtCLUL1baIWexcZuYGmlhH6%2F2VJv897M3NQG%2BVrCJbT3J2JoFpXJXqbz5BT0gzeungidGOjAvMmHSzpxAHY4lgwQ6nWscwbF8y56z%2BXS%2B6ryuxvRMZkMpdgWf47MPw%3D%3D

Oh for fellow Desktop users: I also just pushed an update so you can press Ctrl+Alt+Enter for “Run”

On desktop it might be nice to split horizontally instead of vertically between code and image...

https://jxl-art.surma.technology/?zcode=VYzBCsIwEETv%2BYq5SyAp5uBFqN6jqJCz2LUNlCplKfj3bmhs421m9r09RG7ozR126nK8warTGGngO8fXIE3FJx7YSwIkfiQ6Y6QAGh7a5nglhpmZhM%2BElPNI09ITWE9t2PgAu07J1dYsjhdBVy7f8%2BB%2BfH5S971AxRagCyWIsjWlEyi2HVOzYn9r5cwX

'Alien Intestines'

https://jxl-art.surma.technology/?zcode=RYoxCsJAEEX7OcW%2FwMCuIKQSor2CK6QO7rgZCDEJo4Wnz2wau%2Ffff2e1LLMNaOh%2BeSDQbVWZrDd9T4iUlo%2FIT4j0hSdObgDHqyMfnQFG%2By3tOIIP%2B%2Fa3q2HYV%2F070TKYZHD8O8SmFowkhrAB

'Late Summer Wheat Field'

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOUKcg5RMOTyL8pMzStJLMnMzwPyggtLU1OrUrm4MtMUkhXsgCIKCkBmjV8NiGMA5IH5fkAehKOgoKvgWJbumJOjoGuILqJtCNMQjqIhPDUzPaMkNQVZC1xMG2pnMlyLrkJwaomCEYwTrmAEAA%3D%3D

This is a particular impressionistic subschool of jxl art

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQsOAKcg5RMODyL8pMzStJLMnMz1Mw5AouLE1NrUrl4spMU0hWsAOKKCgAmX5ApgGQqaCgq%2BBYlh6u7aega26OIhCuoA0W0VUIVzA2AAA%3D

Alligator nail salon https://jxl-art.surma.technology/?zcode=VYxBC8IwDIXv%2FRW5S6EdK%2BJFmN7nUCFncXELjE1G2O83lbrV23tf3pcTS0tv6eFgruc7eHOZmUZ5CE%2BjNsMveMJRE4CFGwnsncZEY%2FyWZqZl7XFZLR3uagS%2FoShb71anVsEWId0TCL99elINg44yhmAzBVUpXe4gcdcLtdvsjxbBfQA%3D

'Flesh Growing Experiment'

https://jxl-art.surma.technology/?zcode=VY3BCsIwEETv%2BYq9S2ATCXgSqgd7qqLCnsWubaBUKUu%2F301JMd7yZuZlD1Fa%2FkgPO3M93sGZ8xR5lIfE96hk4gvoVMMeHBoAC9XcVcMACbR6pkKfC1wmnpVx4bylTUN5kZIbC1iHuCqN7q0Puc9BWH8o7llfZAS2UEiVLZYOcex64fY3%2B0t9wC8%3D

How did you get such well defined borders? These last pictures look quite organic

I think it's because I let N go down to slightly negative before doing the big Weighted 250 bump up

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQsOAKcg5RMODyL8pMzStJLMnMz1Mw5OLKTFMId%2FdQsFMwNOBSUNBVcCxLd8zJUQBxgFIBRallIDlTEB8qHa7tFw7UCeIDVfgBpXUNIdJwAUMDmACSkboWqGJgc3QVTLlgYuGpmekZJakpCsYGBgA%3D

https://jxl-art.surma.technology/?zcode=C89MKclQMDQwMuHySM1MzyiBsIOcQxQMuZwyS1JSC8DyXP5Fmal5JYklmfl5QBmuzDSFZAU7IEtBQVchOLVEwQDIggqCmGBOJZwDUuUHVg1j6xrCVPkBVVkaINSFg92RmqKgawwXBSoLd%2FdAMg6k0LEs3U%2Fbz1VB2wxDMFxB28IAAA%3D%3D

Sponge

https://jxl-art.surma.technology/?zcode=bU9BCsIwELznFXsvgaS20ZNQRewpFhVyFhvbQKlSQsHfu2lr2oi3mdmZ2V1lSlsDZ3FCcm2q2o74vL8CJztjS%2F0a5uTUGd3amzXPFlaEmAfcYYseAIRF0ekeaZIyFAAoZH2VNQ1EPOR0CrjsaEXy9sQ5JXCPL9oCTVngFEJMcxQkClR8w8GipaiG13QJUcLmsGuL2exDSR3zxTG%2BUUbyABFs%2FugK0TqocCcta4MD6E%2BJH3B88wM%3D

Alien Armada

After the current sync, you can make multi-layer jxl art (and do a crop) like in this example with jxl_from_tree

<@!228116142185512960> feel free to update the online tool, when I get the chance I'll make a pull request to update the help screen

Can confirm layers work 😄

Just updated the prettifier as well

should be live in a couple minutes

Version `41c86f8` is live now

<@!794205442175402004>

<:Hypers:808826266060193874>

now everyone can have fun with cropping and layers! 🙂

Ha amazing

abort(CompileError: WebAssembly.instantiate(): expected magic word 00 61 73 6d, found 3c 21 44 4f @+0). Build with -s ASSERTIONS=1 for more info.

🤔